Merge pull request #350 from SchrodingersGat/part-pricing

Part pricing

.gitignore

@@ -26,6 +26,7 @@ var/
 *.log
 local_settings.py
 *.sqlite3
+*.backup
 
 # Sphinx files
 docs/_build

InvenTree/InvenTree/urls.py

@@ -11,9 +11,10 @@ from django.contrib.auth import views as auth_views
 from qr_code import urls as qr_code_urls
 
 from company.urls import company_urls
+from company.urls import supplier_part_urls
+from company.urls import price_break_urls
 
 from part.urls import part_urls
-from part.urls import supplier_part_urls
 
 from stock.urls import stock_urls
 
@@ -50,6 +51,7 @@ apipatterns = [
 urlpatterns = [
     url(r'^part/', include(part_urls)),
     url(r'^supplier-part/', include(supplier_part_urls)),
+    url(r'^price-break/', include(price_break_urls)),
 
     url(r'^stock/', include(stock_urls)),
 

InvenTree/InvenTree/views.py

@@ -223,6 +223,7 @@ class AjaxCreateView(AjaxMixin, CreateView):
 
         super(CreateView, self).get(request, *args, **kwargs)
 
+        self.request = request
         form = self.get_form()
         return self.renderJsonResponse(request, form)
 
@@ -233,6 +234,7 @@ class AjaxCreateView(AjaxMixin, CreateView):
         - If valid, save form
         - Return status info (success / failure)
         """
+        self.request = request
         form = self.get_form()
 
         # Extra JSON data sent alongside form

InvenTree/build/migrations/0001_initial.py

@@ -1,7 +1,6 @@
-# -*- coding: utf-8 -*-
+# Generated by Django 2.2 on 2019-05-18 14:04
-# Generated by Django 1.11.12 on 2018-04-22 11:53
-from __future__ import unicode_literals
 
+from django.conf import settings
 import django.core.validators
 from django.db import migrations, models
 import django.db.models.deletion
@@ -12,7 +11,9 @@ class Migration(migrations.Migration):
     initial = True
 
     dependencies = [
-        ('part', '0001_initial'),
+        ('part', '0002_auto_20190519_0004'),
+        ('stock', '0001_initial'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
     ]
 
     operations = [
@@ -20,14 +21,29 @@ class Migration(migrations.Migration):
             name='Build',
             fields=[
                 ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('batch', models.CharField(blank=True, help_text='Batch code for this build output', max_length=100, null=True)),
-                ('status', models.PositiveIntegerField(choices=[(40, 'Complete'), (10, 'Pending'), (20, 'Holding'), (30, 'Cancelled')], default=10, validators=[django.core.validators.MinValueValidator(0)])),
-                ('creation_date', models.DateField(auto_now=True)),
-                ('completion_date', models.DateField(blank=True, null=True)),
                 ('title', models.CharField(help_text='Brief description of the build', max_length=100)),
                 ('quantity', models.PositiveIntegerField(default=1, help_text='Number of parts to build', validators=[django.core.validators.MinValueValidator(1)])),
-                ('notes', models.TextField(blank=True)),
+                ('status', models.PositiveIntegerField(choices=[(10, 'Pending'), (20, 'Allocated'), (30, 'Cancelled'), (40, 'Complete')], default=10, help_text='Build status', validators=[django.core.validators.MinValueValidator(0)])),
-                ('part', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='builds', to='part.Part')),
+                ('batch', models.CharField(blank=True, help_text='Batch code for this build output', max_length=100, null=True)),
+                ('creation_date', models.DateField(auto_now=True)),
+                ('completion_date', models.DateField(blank=True, null=True)),
+                ('URL', models.URLField(blank=True, help_text='Link to external URL')),
+                ('notes', models.TextField(blank=True, help_text='Extra build notes')),
+                ('completed_by', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='builds_completed', to=settings.AUTH_USER_MODEL)),
+                ('part', models.ForeignKey(help_text='Select part to build', limit_choices_to={'active': True, 'buildable': True}, on_delete=django.db.models.deletion.CASCADE, related_name='builds', to='part.Part')),
+                ('take_from', models.ForeignKey(blank=True, help_text='Select location to take stock from for this build (leave blank to take from any stock location)', null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='sourcing_builds', to='stock.StockLocation')),
             ],
         ),
+        migrations.CreateModel(
+            name='BuildItem',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('quantity', models.PositiveIntegerField(default=1, help_text='Stock quantity to allocate to build', validators=[django.core.validators.MinValueValidator(1)])),
+                ('build', models.ForeignKey(help_text='Build to allocate parts', on_delete=django.db.models.deletion.CASCADE, related_name='allocated_stock', to='build.Build')),
+                ('stock_item', models.ForeignKey(help_text='Stock Item to allocate to build', on_delete=django.db.models.deletion.CASCADE, related_name='allocations', to='stock.StockItem')),
+            ],
+            options={
+                'unique_together': {('build', 'stock_item')},
+            },
+        ),
     ]

InvenTree/build/migrations/0002_auto_20190412_2030.py

@@ -1,25 +0,0 @@
-# Generated by Django 2.2 on 2019-04-12 10:30
-
-import django.core.validators
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('build', '0001_initial'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='build',
-            name='part',
-            field=models.ForeignKey(limit_choices_to={'buildable': True}, on_delete=django.db.models.deletion.CASCADE, related_name='builds', to='part.Part'),
-        ),
-        migrations.AlterField(
-            model_name='build',
-            name='status',
-            field=models.PositiveIntegerField(choices=[(10, 'Pending'), (20, 'Holding'), (30, 'Cancelled'), (40, 'Complete')], default=10, validators=[django.core.validators.MinValueValidator(0)]),
-        ),
-    ]

InvenTree/build/migrations/0003_builditemallocation.py

@@ -1,25 +0,0 @@
-# Generated by Django 2.2 on 2019-04-29 12:14
-
-import django.core.validators
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0009_auto_20190428_0841'),
-        ('build', '0002_auto_20190412_2030'),
-    ]
-
-    operations = [
-        migrations.CreateModel(
-            name='BuildItemAllocation',
-            fields=[
-                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('quantity', models.PositiveIntegerField(default=1, help_text='Stock quantity to allocate to build', validators=[django.core.validators.MinValueValidator(1)])),
-                ('build', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='allocated_stock', to='build.Build')),
-                ('stock', models.ForeignKey(help_text='Stock Item to allocate to build', on_delete=django.db.models.deletion.CASCADE, related_name='allocations', to='stock.StockItem')),
-            ],
-        ),
-    ]

InvenTree/build/migrations/0004_build_url.py

@@ -1,18 +0,0 @@
-# Generated by Django 2.2 on 2019-04-29 12:18
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('build', '0003_builditemallocation'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='build',
-            name='URL',
-            field=models.URLField(blank=True, help_text='Link to external URL'),
-        ),
-    ]

InvenTree/build/migrations/0005_auto_20190429_2229.py

@@ -1,18 +0,0 @@
-# Generated by Django 2.2 on 2019-04-29 12:29
-
-from django.db import migrations
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0009_auto_20190428_0841'),
-        ('build', '0004_build_url'),
-    ]
-
-    operations = [
-        migrations.RenameModel(
-            old_name='BuildItemAllocation',
-            new_name='BuildItem',
-        ),
-    ]

InvenTree/build/migrations/0006_auto_20190429_2233.py

@@ -1,18 +0,0 @@
-# Generated by Django 2.2 on 2019-04-29 12:33
-
-from django.db import migrations
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('build', '0005_auto_20190429_2229'),
-    ]
-
-    operations = [
-        migrations.RenameField(
-            model_name='builditem',
-            old_name='stock',
-            new_name='stock_item',
-        ),
-    ]

InvenTree/build/migrations/0007_auto_20190429_2255.py

@@ -1,18 +0,0 @@
-# Generated by Django 2.2 on 2019-04-29 12:55
-
-from django.db import migrations
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0009_auto_20190428_0841'),
-        ('build', '0006_auto_20190429_2233'),
-    ]
-
-    operations = [
-        migrations.AlterUniqueTogether(
-            name='builditem',
-            unique_together={('build', 'stock_item')},
-        ),
-    ]

InvenTree/build/migrations/0008_auto_20190501_2344.py

@@ -1,25 +0,0 @@
-# Generated by Django 2.2 on 2019-05-01 13:44
-
-import django.core.validators
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('build', '0007_auto_20190429_2255'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='build',
-            name='status',
-            field=models.PositiveIntegerField(choices=[(10, 'Pending'), (30, 'Cancelled'), (40, 'Complete')], default=10, validators=[django.core.validators.MinValueValidator(0)]),
-        ),
-        migrations.AlterField(
-            model_name='builditem',
-            name='build',
-            field=models.ForeignKey(help_text='Build to allocate parts', on_delete=django.db.models.deletion.CASCADE, related_name='allocated_stock', to='build.Build'),
-        ),
-    ]

InvenTree/build/migrations/0009_build_completed_by.py

@@ -1,21 +0,0 @@
-# Generated by Django 2.2 on 2019-05-02 21:26
-
-from django.conf import settings
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
-        ('build', '0008_auto_20190501_2344'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='build',
-            name='completed_by',
-            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='builds_completed', to=settings.AUTH_USER_MODEL),
-        ),
-    ]

InvenTree/build/migrations/0010_auto_20190505_2233.py

@@ -1,19 +0,0 @@
-# Generated by Django 2.2 on 2019-05-05 12:33
-
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('build', '0009_build_completed_by'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='build',
-            name='part',
-            field=models.ForeignKey(limit_choices_to={'active': True, 'buildable': True}, on_delete=django.db.models.deletion.CASCADE, related_name='builds', to='part.Part'),
-        ),
-    ]

InvenTree/build/migrations/0011_auto_20190508_0748.py

@@ -1,19 +0,0 @@
-# Generated by Django 2.2 on 2019-05-07 21:48
-
-import django.core.validators
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('build', '0010_auto_20190505_2233'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='build',
-            name='status',
-            field=models.PositiveIntegerField(choices=[(10, 'Pending'), (20, 'Allocated'), (30, 'Cancelled'), (40, 'Complete')], default=10, validators=[django.core.validators.MinValueValidator(0)]),
-        ),
-    ]

InvenTree/build/migrations/0012_auto_20190508_2332.py

@@ -1,30 +0,0 @@
-# Generated by Django 2.2 on 2019-05-08 13:32
-
-import django.core.validators
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('build', '0011_auto_20190508_0748'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='build',
-            name='notes',
-            field=models.TextField(blank=True, help_text='Extra build notes'),
-        ),
-        migrations.AlterField(
-            model_name='build',
-            name='part',
-            field=models.ForeignKey(help_text='Select part to build', limit_choices_to={'active': True, 'buildable': True}, on_delete=django.db.models.deletion.CASCADE, related_name='builds', to='part.Part'),
-        ),
-        migrations.AlterField(
-            model_name='build',
-            name='status',
-            field=models.PositiveIntegerField(choices=[(10, 'Pending'), (20, 'Allocated'), (30, 'Cancelled'), (40, 'Complete')], default=10, help_text='Build status', validators=[django.core.validators.MinValueValidator(0)]),
-        ),
-    ]

InvenTree/build/migrations/0013_build_take_from.py

@@ -1,20 +0,0 @@
-# Generated by Django 2.2 on 2019-05-10 08:50
-
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0015_stockitem_delete_on_deplete'),
-        ('build', '0012_auto_20190508_2332'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='build',
-            name='take_from',
-            field=models.ForeignKey(blank=True, help_text='Select location to take stock from for this build (leave blank to take from any stock location', null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='sourcing_builds', to='stock.StockLocation'),
-        ),
-    ]

InvenTree/build/templates/build/build_base.html

@@ -36,6 +36,19 @@ InvenTree | Build - {{ build }}
                         <td>Quantity</td>
                         <td>{{ build.quantity }}</td>
                     </tr>
+                    <tr>
+                        <td>BOM Price</td>
+                        <td>
+                            {% if bom_price %}
+                            {{ bom_price }}
+                            {% if build.part.has_complete_bom_pricing == False %}
+                             <span class='warning-msg'><i>BOM pricing is incomplete</i></span>
+                            {% endif %}
+                            {% else %}
+                            <span class='warning-msg'><i>No pricing information</i></span>
+                            {% endif %}
+                        </td>
+                    </tr>
                 </table>
             </div>
         </div>

InvenTree/build/views.py

@@ -265,6 +265,16 @@ class BuildDetail(DetailView):
     template_name = 'build/detail.html'
     context_object_name = 'build'
 
+    def get_context_data(self, **kwargs):
+
+        ctx = super(DetailView, self).get_context_data(**kwargs)
+
+        build = self.get_object()
+
+        ctx['bom_price'] = build.part.get_price_info(build.quantity, buy=False)
+
+        return ctx
+
 
 class BuildAllocate(DetailView):
     """ View for allocating parts to a Build """

InvenTree/company/admin.py

@@ -2,10 +2,22 @@ from django.contrib import admin
 from import_export.admin import ImportExportModelAdmin
 
 from .models import Company
+from .models import SupplierPart
+from .models import SupplierPriceBreak
 
 
 class CompanyAdmin(ImportExportModelAdmin):
     list_display = ('name', 'website', 'contact')
 
 
+class SupplierPartAdmin(ImportExportModelAdmin):
+    list_display = ('part', 'supplier', 'SKU')
+
+
+class SupplierPriceBreakAdmin(ImportExportModelAdmin):
+    list_display = ('part', 'quantity', 'cost')
+
+
 admin.site.register(Company, CompanyAdmin)
+admin.site.register(SupplierPart, SupplierPartAdmin)
+admin.site.register(SupplierPriceBreak, SupplierPriceBreakAdmin)

InvenTree/company/api.py

@@ -9,10 +9,13 @@ from django_filters.rest_framework import DjangoFilterBackend
 from rest_framework import filters
 from rest_framework import generics, permissions
 
-from django.conf.urls import url
+from django.conf.urls import url, include
 
 from .models import Company
+from .models import SupplierPart, SupplierPriceBreak
+
 from .serializers import CompanySerializer
+from .serializers import SupplierPartSerializer, SupplierPriceBreakSerializer
 
 
 class CompanyList(generics.ListCreateAPIView):
@@ -65,7 +68,85 @@ class CompanyDetail(generics.RetrieveUpdateDestroyAPIView):
     ]
 
 
+class SupplierPartList(generics.ListCreateAPIView):
+    """ API endpoint for list view of SupplierPart object
+
+    - GET: Return list of SupplierPart objects
+    - POST: Create a new SupplierPart object
+    """
+
+    queryset = SupplierPart.objects.all()
+    serializer_class = SupplierPartSerializer
+
+    permission_classes = [
+        permissions.IsAuthenticatedOrReadOnly,
+    ]
+
+    filter_backends = [
+        DjangoFilterBackend,
+        filters.SearchFilter,
+        filters.OrderingFilter,
+    ]
+
+    filter_fields = [
+        'part',
+        'supplier'
+    ]
+
+
+class SupplierPartDetail(generics.RetrieveUpdateDestroyAPIView):
+    """ API endpoint for detail view of SupplierPart object
+
+    - GET: Retrieve detail view
+    - PATCH: Update object
+    - DELETE: Delete objec
+    """
+
+    queryset = SupplierPart.objects.all()
+    serializer_class = SupplierPartSerializer
+    permission_classes = (permissions.IsAuthenticatedOrReadOnly,)
+
+    read_only_fields = [
+    ]
+
+
+class SupplierPriceBreakList(generics.ListCreateAPIView):
+    """ API endpoint for list view of SupplierPriceBreak object
+
+    - GET: Retrieve list of SupplierPriceBreak objects
+    - POST: Create a new SupplierPriceBreak object
+    """
+
+    queryset = SupplierPriceBreak.objects.all()
+    serializer_class = SupplierPriceBreakSerializer
+
+    permission_classes = [
+        permissions.IsAuthenticatedOrReadOnly,
+    ]
+
+    filter_backends = [
+        DjangoFilterBackend,
+    ]
+
+    filter_fields = [
+        'part',
+    ]
+
+
+supplier_part_api_urls = [
+
+    url(r'^(?P<pk>\d+)/?', SupplierPartDetail.as_view(), name='api-supplier-part-detail'),
+
+    # Catch anything else
+    url(r'^.*$', SupplierPartList.as_view(), name='api-part-supplier-list'),
+]
+
+
 company_api_urls = [
+    
+    url(r'^part/', include(supplier_part_api_urls)),
+
+    url(r'^price-break/?', SupplierPriceBreakList.as_view(), name='api-part-supplier-price'),
 
     url(r'^(?P<pk>\d+)/?', CompanyDetail.as_view(), name='api-company-detail'),
 

InvenTree/company/forms.py

@@ -8,6 +8,8 @@ from __future__ import unicode_literals
 from InvenTree.forms import HelperForm
 
 from .models import Company
+from .models import SupplierPart
+from .models import SupplierPriceBreak
 
 
 class EditCompanyForm(HelperForm):
@@ -37,3 +39,37 @@ class CompanyImageForm(HelperForm):
         fields = [
             'image'
         ]
+
+
+class EditSupplierPartForm(HelperForm):
+    """ Form for editing a SupplierPart object """
+
+    class Meta:
+        model = SupplierPart
+        fields = [
+            'part',
+            'supplier',
+            'SKU',
+            'description',
+            'manufacturer',
+            'MPN',
+            'URL',
+            'note',
+            'base_cost',
+            'multiple',
+            'minimum',
+            'packaging',
+            'lead_time'
+        ]
+
+
+class EditPriceBreakForm(HelperForm):
+    """ Form for creating / editing a supplier price break """
+
+    class Meta:
+        model = SupplierPriceBreak
+        fields = [
+            'part',
+            'quantity',
+            'cost'
+        ]

InvenTree/company/migrations/0001_initial.py

@@ -1,9 +1,9 @@
-# -*- coding: utf-8 -*-
+# Generated by Django 2.2 on 2019-05-18 14:04
-# Generated by Django 1.11.12 on 2018-04-22 11:53
-from __future__ import unicode_literals
 
 import company.models
+import django.core.validators
 from django.db import migrations, models
+import django.db.models.deletion
 
 
 class Migration(migrations.Migration):
@@ -18,15 +18,60 @@ class Migration(migrations.Migration):
             name='Company',
             fields=[
                 ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('name', models.CharField(help_text='Company naem', max_length=100, unique=True)),
+                ('name', models.CharField(help_text='Company name', max_length=100, unique=True)),
-                ('description', models.CharField(max_length=500)),
+                ('description', models.CharField(help_text='Description of the company', max_length=500)),
                 ('website', models.URLField(blank=True, help_text='Company website URL')),
                 ('address', models.CharField(blank=True, help_text='Company address', max_length=200)),
-                ('phone', models.CharField(blank=True, max_length=50)),
+                ('phone', models.CharField(blank=True, help_text='Contact phone number', max_length=50)),
-                ('email', models.EmailField(blank=True, max_length=254)),
+                ('email', models.EmailField(blank=True, help_text='Contact email address', max_length=254)),
-                ('contact', models.CharField(blank=True, max_length=100)),
+                ('contact', models.CharField(blank=True, help_text='Point of contact', max_length=100)),
+                ('URL', models.URLField(blank=True, help_text='Link to external company information')),
                 ('image', models.ImageField(blank=True, max_length=255, null=True, upload_to=company.models.rename_company_image)),
                 ('notes', models.TextField(blank=True)),
+                ('is_customer', models.BooleanField(default=False, help_text='Do you sell items to this company?')),
+                ('is_supplier', models.BooleanField(default=True, help_text='Do you purchase items from this company?')),
             ],
         ),
+        migrations.CreateModel(
+            name='Contact',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=100)),
+                ('phone', models.CharField(blank=True, max_length=100)),
+                ('email', models.EmailField(blank=True, max_length=254)),
+                ('role', models.CharField(blank=True, max_length=100)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='SupplierPart',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('SKU', models.CharField(help_text='Supplier stock keeping unit', max_length=100)),
+                ('manufacturer', models.CharField(blank=True, help_text='Manufacturer', max_length=100)),
+                ('MPN', models.CharField(blank=True, help_text='Manufacturer part number', max_length=100)),
+                ('URL', models.URLField(blank=True, help_text='URL for external supplier part link')),
+                ('description', models.CharField(blank=True, help_text='Supplier part description', max_length=250)),
+                ('note', models.CharField(blank=True, help_text='Notes', max_length=100)),
+                ('base_cost', models.DecimalField(decimal_places=3, default=0, help_text='Minimum charge (e.g. stocking fee)', max_digits=10, validators=[django.core.validators.MinValueValidator(0)])),
+                ('packaging', models.CharField(blank=True, help_text='Part packaging', max_length=50)),
+                ('multiple', models.PositiveIntegerField(default=1, help_text='Order multiple', validators=[django.core.validators.MinValueValidator(1)])),
+                ('minimum', models.PositiveIntegerField(default=1, help_text='Minimum order quantity (MOQ)', validators=[django.core.validators.MinValueValidator(1)])),
+                ('lead_time', models.DurationField(blank=True, null=True)),
+            ],
+            options={
+                'db_table': 'part_supplierpart',
+            },
+        ),
+        migrations.CreateModel(
+            name='SupplierPriceBreak',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('quantity', models.PositiveIntegerField(default=1, validators=[django.core.validators.MinValueValidator(1)])),
+                ('cost', models.DecimalField(decimal_places=5, max_digits=10, validators=[django.core.validators.MinValueValidator(0)])),
+                ('part', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='pricebreaks', to='company.SupplierPart')),
+            ],
+            options={
+                'db_table': 'part_supplierpricebreak',
+            },
+        ),
     ]

InvenTree/company/migrations/0002_auto_20180422_1201.py

@@ -1,25 +0,0 @@
-# -*- coding: utf-8 -*-
-# Generated by Django 1.11.12 on 2018-04-22 12:01
-from __future__ import unicode_literals
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('company', '0001_initial'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='company',
-            name='is_customer',
-            field=models.BooleanField(default=False),
-        ),
-        migrations.AddField(
-            model_name='company',
-            name='is_supplier',
-            field=models.BooleanField(default=False),
-        ),
-    ]

InvenTree/company/migrations/0002_auto_20190519_0004.py

@@ -1,35 +1,40 @@
-# Generated by Django 2.2 on 2019-05-08 13:32
+# Generated by Django 2.2 on 2019-05-18 14:04
 
 from django.db import migrations, models
 import django.db.models.deletion
-import part.models
 
 
 class Migration(migrations.Migration):
 
+    initial = True
+
     dependencies = [
-        ('part', '0018_auto_20190505_2231'),
+        ('company', '0001_initial'),
+        ('part', '0001_initial'),
     ]
 
     operations = [
-        migrations.AlterField(
+        migrations.AddField(
-            model_name='part',
-            name='units',
-            field=models.CharField(blank=True, default='pcs', help_text='Stock keeping units for this part', max_length=20),
-        ),
-        migrations.AlterField(
-            model_name='partattachment',
-            name='attachment',
-            field=models.FileField(blank=True, help_text='Select file to attach', null=True, upload_to=part.models.attach_file),
-        ),
-        migrations.AlterField(
             model_name='supplierpart',
             name='part',
             field=models.ForeignKey(help_text='Select part', limit_choices_to={'purchaseable': True}, on_delete=django.db.models.deletion.CASCADE, related_name='supplier_parts', to='part.Part'),
         ),
-        migrations.AlterField(
+        migrations.AddField(
             model_name='supplierpart',
             name='supplier',
             field=models.ForeignKey(help_text='Select supplier', limit_choices_to={'is_supplier': True}, on_delete=django.db.models.deletion.CASCADE, related_name='parts', to='company.Company'),
         ),
+        migrations.AddField(
+            model_name='contact',
+            name='company',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='contacts', to='company.Company'),
+        ),
+        migrations.AlterUniqueTogether(
+            name='supplierpricebreak',
+            unique_together={('part', 'quantity')},
+        ),
+        migrations.AlterUniqueTogether(
+            name='supplierpart',
+            unique_together={('part', 'supplier', 'SKU')},
+        ),
     ]

InvenTree/company/migrations/0003_auto_20180423_1117.py

@@ -1,25 +0,0 @@
-# -*- coding: utf-8 -*-
-# Generated by Django 1.11.12 on 2018-04-23 11:17
-from __future__ import unicode_literals
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('company', '0002_auto_20180422_1201'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='company',
-            name='is_supplier',
-            field=models.BooleanField(default=True),
-        ),
-        migrations.AlterField(
-            model_name='company',
-            name='name',
-            field=models.CharField(help_text='Company name', max_length=100, unique=True),
-        ),
-    ]

InvenTree/company/migrations/0004_company_url.py

@@ -1,20 +0,0 @@
-# -*- coding: utf-8 -*-
-# Generated by Django 1.11.12 on 2018-04-24 08:01
-from __future__ import unicode_literals
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('company', '0003_auto_20180423_1117'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='company',
-            name='URL',
-            field=models.URLField(blank=True, help_text='Link to external company information'),
-        ),
-    ]

InvenTree/company/migrations/0005_contact.py

@@ -1,27 +0,0 @@
-# -*- coding: utf-8 -*-
-# Generated by Django 1.11.12 on 2018-04-30 07:19
-from __future__ import unicode_literals
-
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('company', '0004_company_url'),
-    ]
-
-    operations = [
-        migrations.CreateModel(
-            name='Contact',
-            fields=[
-                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('name', models.CharField(max_length=100)),
-                ('phone', models.CharField(blank=True, max_length=100)),
-                ('email', models.EmailField(blank=True, max_length=254)),
-                ('role', models.CharField(blank=True, max_length=100)),
-                ('company', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='contacts', to='company.Company')),
-            ],
-        ),
-    ]

InvenTree/company/migrations/0006_auto_20190508_2332.py

@@ -1,43 +0,0 @@
-# Generated by Django 2.2 on 2019-05-08 13:32
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('company', '0005_contact'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='company',
-            name='contact',
-            field=models.CharField(blank=True, help_text='Point of contact', max_length=100),
-        ),
-        migrations.AlterField(
-            model_name='company',
-            name='description',
-            field=models.CharField(help_text='Description of the company', max_length=500),
-        ),
-        migrations.AlterField(
-            model_name='company',
-            name='email',
-            field=models.EmailField(blank=True, help_text='Contact email address', max_length=254),
-        ),
-        migrations.AlterField(
-            model_name='company',
-            name='is_customer',
-            field=models.BooleanField(default=False, help_text='Do you sell items to this company?'),
-        ),
-        migrations.AlterField(
-            model_name='company',
-            name='is_supplier',
-            field=models.BooleanField(default=True, help_text='Do you purchase items from this company?'),
-        ),
-        migrations.AlterField(
-            model_name='company',
-            name='phone',
-            field=models.CharField(blank=True, help_text='Contact phone number', max_length=50),
-        ),
-    ]

InvenTree/company/models.py

@@ -7,6 +7,10 @@ from __future__ import unicode_literals
 
 import os
 
+import math
+
+from django.core.validators import MinValueValidator
+
 from django.apps import apps
 from django.db import models
 from django.urls import reverse
@@ -150,3 +154,174 @@ class Contact(models.Model):
 
     company = models.ForeignKey(Company, related_name='contacts',
                                 on_delete=models.CASCADE)
+
+
+class SupplierPart(models.Model):
+    """ Represents a unique part as provided by a Supplier
+    Each SupplierPart is identified by a MPN (Manufacturer Part Number)
+    Each SupplierPart is also linked to a Part object.
+    A Part may be available from multiple suppliers
+
+    Attributes:
+        part: Link to the master Part
+        supplier: Company that supplies this SupplierPart object
+        SKU: Stock keeping unit (supplier part number)
+        manufacturer: Manufacturer name
+        MPN: Manufacture part number
+        URL: Link to external website for this part
+        description: Descriptive notes field
+        note: Longer form note field
+        base_cost: Base charge added to order independent of quantity e.g. "Reeling Fee"
+        multiple: Multiple that the part is provided in
+        minimum: MOQ (minimum order quantity) required for purchase
+        lead_time: Supplier lead time
+        packaging: packaging that the part is supplied in, e.g. "Reel"
+    """
+
+    def get_absolute_url(self):
+        return reverse('supplier-part-detail', kwargs={'pk': self.id})
+
+    class Meta:
+        unique_together = ('part', 'supplier', 'SKU')
+
+        # This model was moved from the 'Part' app
+        db_table = 'part_supplierpart'
+
+    part = models.ForeignKey('part.Part', on_delete=models.CASCADE,
+                             related_name='supplier_parts',
+                             limit_choices_to={'purchaseable': True},
+                             help_text='Select part',
+                             )
+
+    supplier = models.ForeignKey(Company, on_delete=models.CASCADE,
+                                 related_name='parts',
+                                 limit_choices_to={'is_supplier': True},
+                                 help_text='Select supplier',
+                                 )
+
+    SKU = models.CharField(max_length=100, help_text='Supplier stock keeping unit')
+
+    manufacturer = models.CharField(max_length=100, blank=True, help_text='Manufacturer')
+
+    MPN = models.CharField(max_length=100, blank=True, help_text='Manufacturer part number')
+
+    URL = models.URLField(blank=True, help_text='URL for external supplier part link')
+
+    description = models.CharField(max_length=250, blank=True, help_text='Supplier part description')
+
+    note = models.CharField(max_length=100, blank=True, help_text='Notes')
+
+    base_cost = models.DecimalField(max_digits=10, decimal_places=3, default=0, validators=[MinValueValidator(0)], help_text='Minimum charge (e.g. stocking fee)')
+
+    packaging = models.CharField(max_length=50, blank=True, help_text='Part packaging')
+    
+    multiple = models.PositiveIntegerField(default=1, validators=[MinValueValidator(1)], help_text='Order multiple')
+
+    minimum = models.PositiveIntegerField(default=1, validators=[MinValueValidator(1)], help_text='Minimum order quantity (MOQ)')
+
+    lead_time = models.DurationField(blank=True, null=True)
+
+    @property
+    def manufacturer_string(self):
+
+        items = []
+
+        if self.manufacturer:
+            items.append(self.manufacturer)
+        if self.MPN:
+            items.append(self.MPN)
+
+        return ' | '.join(items)
+
+    @property
+    def has_price_breaks(self):
+        return self.price_breaks.count() > 0
+
+    @property
+    def price_breaks(self):
+        """ Return the associated price breaks in the correct order """
+        return self.pricebreaks.order_by('quantity').all()
+
+    def get_price(self, quantity, moq=True, multiples=True):
+        """ Calculate the supplier price based on quantity price breaks.
+
+        - Don't forget to add in flat-fee cost (base_cost field)
+        - If MOQ (minimum order quantity) is required, bump quantity
+        - If order multiples are to be observed, then we need to calculate based on that, too
+        """
+
+        price_breaks = self.price_breaks.all()
+
+        # No price break information available?
+        if len(price_breaks) == 0:
+            return None
+
+        # Minimum ordering requirement
+        if moq and self.minimum > quantity:
+            quantity = self.minimum
+
+        # Order multiples
+        if multiples:
+            quantity = int(math.ceil(quantity / self.multiple) * self.multiple)
+
+        pb_found = False
+        pb_quantity = -1
+        pb_cost = 0.0
+
+        for pb in self.price_breaks.all():
+            # Ignore this pricebreak (quantity is too high)
+            if pb.quantity > quantity:
+                continue
+
+            pb_found = True
+
+            # If this price-break quantity is the largest so far, use it!
+            if pb.quantity > pb_quantity:
+                pb_quantity = pb.quantity
+                pb_cost = pb.cost
+
+        if pb_found:
+            cost = pb_cost * quantity
+            return cost + self.base_cost
+        else:
+            return None
+
+    def __str__(self):
+        s = "{supplier} ({sku})".format(
+            sku=self.SKU,
+            supplier=self.supplier.name)
+
+        if self.manufacturer_string:
+            s = s + ' - ' + self.manufacturer_string
+        
+        return s
+
+
+class SupplierPriceBreak(models.Model):
+    """ Represents a quantity price break for a SupplierPart.
+    - Suppliers can offer discounts at larger quantities
+    - SupplierPart(s) may have zero-or-more associated SupplierPriceBreak(s)
+
+    Attributes:
+        part: Link to a SupplierPart object that this price break applies to
+        quantity: Quantity required for price break
+        cost: Cost at specified quantity
+    """
+
+    part = models.ForeignKey(SupplierPart, on_delete=models.CASCADE, related_name='pricebreaks')
+
+    quantity = models.PositiveIntegerField(default=1, validators=[MinValueValidator(1)])
+
+    cost = models.DecimalField(max_digits=10, decimal_places=5, validators=[MinValueValidator(0)])
+
+    class Meta:
+        unique_together = ("part", "quantity")
+
+        # This model was moved from the 'Part' app
+        db_table = 'part_supplierpricebreak'
+
+    def __str__(self):
+        return "{mpn} - {cost} @ {quan}".format(
+            mpn=self.part.MPN,
+            cost=self.cost,
+            quan=self.quantity)

InvenTree/company/serializers.py

@@ -5,6 +5,9 @@ JSON serializers for Company app
 from rest_framework import serializers
 
 from .models import Company
+from .models import SupplierPart, SupplierPriceBreak
+
+from part.serializers import PartBriefSerializer
 
 
 class CompanyBriefSerializer(serializers.ModelSerializer):
@@ -47,3 +50,43 @@ class CompanySerializer(serializers.ModelSerializer):
             'is_supplier',
             'part_count'
         ]
+
+
+class SupplierPartSerializer(serializers.ModelSerializer):
+    """ Serializer for SupplierPart object """
+
+    url = serializers.CharField(source='get_absolute_url', read_only=True)
+
+    part_detail = PartBriefSerializer(source='part', many=False, read_only=True)
+
+    supplier_name = serializers.CharField(source='supplier.name', read_only=True)
+    supplier_logo = serializers.CharField(source='supplier.get_image_url', read_only=True)
+
+    class Meta:
+        model = SupplierPart
+        fields = [
+            'pk',
+            'url',
+            'part',
+            'part_detail',
+            'supplier',
+            'supplier_name',
+            'supplier_logo',
+            'SKU',
+            'manufacturer',
+            'MPN',
+            'URL',
+        ]
+
+
+class SupplierPriceBreakSerializer(serializers.ModelSerializer):
+    """ Serializer for SupplierPriceBreak object """
+
+    class Meta:
+        model = SupplierPriceBreak
+        fields = [
+            'pk',
+            'part',
+            'quantity',
+            'cost'
+        ]

InvenTree/company/templates/company/partdetail.html

@@ -10,7 +10,7 @@ InvenTree | {{ company.name }} - Parts
 <div class='row'>
     <div class='col-sm-6'>
         <h3>Supplier Part</h3>
-        <p>{{ part.SKU }} - <a href="{% url 'company-detail-parts' part.supplier.id %}">{{ part.supplier.name }}</a></p>
+        <p><a href="{% url 'company-detail-parts' part.supplier.id %}">{{ part.supplier.name }}</a> - {{ part.SKU }}</p>
     </div>
     <div class='col-sm-6'>
         <h3>
@@ -59,29 +59,46 @@ InvenTree | {{ company.name }} - Parts
 
 <div class='col-sm-6'>
 <table class="table table-striped table-condensed">
-    <tr><th colspan='2'>Pricing</th></tr>
+    <tr>
-    <tr><td>Single Price</td><td>{{ part.single_price }}</td></tr>
+        <th colspan='2'>Pricing</th>
-    {% if part.multiple > 1 %}
+    </tr>
     <tr><td>Order Multiple</td><td>{{ part.multiple }}</td></tr>
-    {% endif %}
     {% if part.base_cost > 0 %}
     <tr><td>Base Price (Flat Fee)</td><td>{{ part.base_cost }}</td></tr>
     {% endif %}
     {% if part.minimum > 1 %}
     <tr><td>Minimum Order Quantity</td><td>{{ part.minimum }}</td></tr>
     {% endif %}
-    {% if part.price_breaks.all %}
+    <tr>
-    <tr><th colspan='2'>Price Breaks</th></tr>
+        <th>Price Breaks</th>
+        <th>
+            <div style='float: right;'>
+                <button class='btn btn-primary' id='new-price-break' type='button'>New Price Break</button>
+            </div>
+        </th>
+    </tr>
     <tr>
         <th>Quantity</th>
         <th>Price</th>
     </tr>
+    {% if part.price_breaks.all %}
     {% for pb in part.price_breaks.all %}
         <tr>
             <td>{{ pb.quantity }}</td>
-            <td>{{ pb.cost }}</td>
+            <td>{{ pb.cost }}
+                <div class='btn-group' style='float: right;'>
+                    <button title='Edit Price Break' class='btn btn-primary pb-edit-button btn-sm' type='button' url="{% url 'price-break-edit' pb.id %}"><span class='glyphicon glyphicon-small glyphicon-pencil'></span></button>
+                    <button title='Delete Price Break' class='btn btn-danger pb-delete-button btn-sm' type='button' url="{% url 'price-break-delete' pb.id %}"><span class='glyphicon glyphicon-small glyphicon-trash'></span></button>
+                </div>
+            </td>
         </tr>
     {% endfor %}
+    {% else %}
+    <tr>
+        <td colspan='2'>
+            <span class='warning-msg'><i>No price breaks have been added for this part</i></span>
+        </td>
+    </tr>
     {% endif %}
 </table>
 </div>
@@ -89,9 +106,7 @@ InvenTree | {{ company.name }} - Parts
 
 <br>
 
-<div>
+
-    <button class='btn btn-primary' type='button'>New Price Break</button>
-</div>
 
 {% include 'modals.html' %}
 
@@ -116,4 +131,36 @@ InvenTree | {{ company.name }} - Parts
                          }
         );
     });
+
+    $('#new-price-break').click(function() {
+        launchModalForm("{% url 'price-break-create' %}",
+            {
+                reload: true,
+                data: {
+                    part: {{ part.id }},
+                }
+            }
+        );
+    });
+
+    $('.pb-edit-button').click(function() {
+        var button = $(this);
+
+        launchModalForm(button.attr('url'),
+            {
+                reload: true,
+            }
+        );
+    });
+
+    $('.pb-delete-button').click(function() {
+        var button = $(this);
+
+        launchModalForm(button.attr('url'),
+            {
+                reload: true,
+            }
+        );
+    });
+
 {% endblock %}

InvenTree/company/urls.py

@@ -36,3 +36,23 @@ company_urls = [
     # Redirect any other patterns
     url(r'^.*$', RedirectView.as_view(url='', permanent=False), name='company-index'),
 ]
+
+price_break_urls = [
+    url('^new/', views.PriceBreakCreate.as_view(), name='price-break-create'),
+
+    url(r'^(?P<pk>\d+)/edit/', views.PriceBreakEdit.as_view(), name='price-break-edit'),
+    url(r'^(?P<pk>\d+)/delete/', views.PriceBreakDelete.as_view(), name='price-break-delete'),
+]
+
+supplier_part_detail_urls = [
+    url(r'edit/?', views.SupplierPartEdit.as_view(), name='supplier-part-edit'),
+    url(r'delete/?', views.SupplierPartDelete.as_view(), name='supplier-part-delete'),
+
+    url('^.*$', views.SupplierPartDetail.as_view(), name='supplier-part-detail'),
+]
+
+supplier_part_urls = [
+    url(r'^new/?', views.SupplierPartCreate.as_view(), name='supplier-part-create'),
+
+    url(r'^(?P<pk>\d+)/', include(supplier_part_detail_urls)),
+]

InvenTree/company/views.py

@@ -8,12 +8,20 @@ from __future__ import unicode_literals
 
 from django.views.generic import DetailView, ListView
 
+from django.forms import HiddenInput
+
 from InvenTree.views import AjaxCreateView, AjaxUpdateView, AjaxDeleteView
 
 from .models import Company
+from .models import SupplierPart
+from .models import SupplierPriceBreak
+
+from part.models import Part
 
 from .forms import EditCompanyForm
 from .forms import CompanyImageForm
+from .forms import EditSupplierPartForm
+from .forms import EditPriceBreakForm
 
 
 class CompanyIndex(ListView):
@@ -104,3 +112,142 @@ class CompanyDelete(AjaxDeleteView):
         return {
             'danger': 'Company was deleted',
         }
+
+
+class SupplierPartDetail(DetailView):
+    """ Detail view for SupplierPart """
+    model = SupplierPart
+    template_name = 'company/partdetail.html'
+    context_object_name = 'part'
+    queryset = SupplierPart.objects.all()
+
+
+class SupplierPartEdit(AjaxUpdateView):
+    """ Update view for editing SupplierPart """
+
+    model = SupplierPart
+    context_object_name = 'part'
+    form_class = EditSupplierPartForm
+    ajax_template_name = 'modal_form.html'
+    ajax_form_title = 'Edit Supplier Part'
+
+
+class SupplierPartCreate(AjaxCreateView):
+    """ Create view for making new SupplierPart """
+
+    model = SupplierPart
+    form_class = EditSupplierPartForm
+    ajax_template_name = 'modal_form.html'
+    ajax_form_title = 'Create new Supplier Part'
+    context_object_name = 'part'
+
+    def get_form(self):
+        """ Create Form instance to create a new SupplierPart object.
+        Hide some fields if they are not appropriate in context
+        """
+        form = super(AjaxCreateView, self).get_form()
+        
+        if form.initial.get('supplier', None):
+            # Hide the supplier field
+            form.fields['supplier'].widget = HiddenInput()
+
+        if form.initial.get('part', None):
+            # Hide the part field
+            form.fields['part'].widget = HiddenInput()
+
+        return form
+
+    def get_initial(self):
+        """ Provide initial data for new SupplierPart:
+
+        - If 'supplier_id' provided, pre-fill supplier field
+        - If 'part_id' provided, pre-fill part field
+        """
+        initials = super(SupplierPartCreate, self).get_initial().copy()
+
+        supplier_id = self.get_param('supplier')
+        part_id = self.get_param('part')
+
+        if supplier_id:
+            try:
+                initials['supplier'] = Company.objects.get(pk=supplier_id)
+            except Company.DoesNotExist:
+                initials['supplier'] = None
+        
+        if part_id:
+            try:
+                initials['part'] = Part.objects.get(pk=part_id)
+            except Part.DoesNotExist:
+                initials['part'] = None
+        
+        return initials
+
+
+class SupplierPartDelete(AjaxDeleteView):
+    """ Delete view for removing a SupplierPart """
+    model = SupplierPart
+    success_url = '/supplier/'
+    ajax_template_name = 'company/partdelete.html'
+    ajax_form_title = 'Delete Supplier Part'
+    context_object_name = 'supplier_part'
+
+
+class PriceBreakCreate(AjaxCreateView):
+    """ View for creating a supplier price break """
+
+    model = SupplierPriceBreak
+    form_class = EditPriceBreakForm
+    ajax_form_title = 'Add Price Break'
+    ajax_template_name = 'modal_form.html'
+
+    def get_data(self):
+        return {
+            'success': 'Added new price break'
+        }
+
+    def get_part(self):
+        try:
+            return SupplierPart.objects.get(id=self.request.GET.get('part'))
+        except SupplierPart.DoesNotExist:
+            return SupplierPart.objects.get(id=self.request.POST.get('part'))
+
+    def get_form(self):
+
+        form = super(AjaxCreateView, self).get_form()
+        form.fields['part'].widget = HiddenInput()
+
+        return form
+
+    def get_initial(self):
+
+        initials = super(AjaxCreateView, self).get_initial()
+
+        print("GETTING INITIAL DAtA")
+
+        initials['part'] = self.get_part()
+
+        return initials
+
+
+class PriceBreakEdit(AjaxUpdateView):
+    """ View for editing a supplier price break """
+
+    model = SupplierPriceBreak
+    form_class = EditPriceBreakForm
+    ajax_form_title = 'Edit Price Break'
+    ajax_template_name = 'modal_form.html'
+
+    def get_form(self):
+
+        form = super(AjaxUpdateView, self).get_form()
+        form.fields['part'].widget = HiddenInput()
+
+        return form
+
+
+class PriceBreakDelete(AjaxDeleteView):
+    """ View for deleting a supplier price break """
+
+    model = SupplierPriceBreak
+    ajax_form_title = "Delete Price Break"
+    ajax_template_name = 'modal_delete_form.html'

InvenTree/part/__init__.py

@@ -5,6 +5,5 @@ It includes models for:
 
 - PartCategory
 - Part
-- SupplierPart
 - BomItem
 """

InvenTree/part/admin.py

@@ -3,7 +3,6 @@ from import_export.admin import ImportExportModelAdmin
 
 from .models import PartCategory, Part
 from .models import PartAttachment, PartStar
-from .models import SupplierPart
 from .models import BomItem
 
 
@@ -31,10 +30,6 @@ class BomItemAdmin(ImportExportModelAdmin):
     list_display = ('part', 'sub_part', 'quantity')
 
 
-class SupplierPartAdmin(ImportExportModelAdmin):
-    list_display = ('part', 'supplier', 'SKU')
-
-
 """
 class ParameterTemplateAdmin(admin.ModelAdmin):
     list_display = ('name', 'units', 'format')
@@ -49,4 +44,3 @@ admin.site.register(PartCategory, PartCategoryAdmin)
 admin.site.register(PartAttachment, PartAttachmentAdmin)
 admin.site.register(PartStar, PartStarAdmin)
 admin.site.register(BomItem, BomItemAdmin)
-admin.site.register(SupplierPart, SupplierPartAdmin)

InvenTree/part/api.py

@@ -16,10 +16,8 @@ from django.conf.urls import url, include
 from django.urls import reverse
 
 from .models import Part, PartCategory, BomItem, PartStar
-from .models import SupplierPart, SupplierPriceBreak
 
 from .serializers import PartSerializer, BomItemSerializer
-from .serializers import SupplierPartSerializer, SupplierPriceBreakSerializer
 from .serializers import CategorySerializer
 from .serializers import PartStarSerializer
 
@@ -233,71 +231,6 @@ class BomDetail(generics.RetrieveUpdateDestroyAPIView):
     ]
 
 
-class SupplierPartList(generics.ListCreateAPIView):
-    """ API endpoint for list view of SupplierPart object
-
-    - GET: Return list of SupplierPart objects
-    - POST: Create a new SupplierPart object
-    """
-
-    queryset = SupplierPart.objects.all()
-    serializer_class = SupplierPartSerializer
-
-    permission_classes = [
-        permissions.IsAuthenticatedOrReadOnly,
-    ]
-
-    filter_backends = [
-        DjangoFilterBackend,
-        filters.SearchFilter,
-        filters.OrderingFilter,
-    ]
-
-    filter_fields = [
-        'part',
-        'supplier'
-    ]
-
-
-class SupplierPartDetail(generics.RetrieveUpdateDestroyAPIView):
-    """ API endpoint for detail view of SupplierPart object
-
-    - GET: Retrieve detail view
-    - PATCH: Update object
-    - DELETE: Delete objec
-    """
-
-    queryset = SupplierPart.objects.all()
-    serializer_class = SupplierPartSerializer
-    permission_classes = (permissions.IsAuthenticatedOrReadOnly,)
-
-    read_only_fields = [
-    ]
-
-
-class SupplierPriceBreakList(generics.ListCreateAPIView):
-    """ API endpoint for list view of SupplierPriceBreak object
-
-    - GET: Retrieve list of SupplierPriceBreak objects
-    - POST: Create a new SupplierPriceBreak object
-    """
-
-    queryset = SupplierPriceBreak.objects.all()
-    serializer_class = SupplierPriceBreakSerializer
-
-    permission_classes = [
-        permissions.IsAuthenticatedOrReadOnly,
-    ]
-
-    filter_backends = [
-        DjangoFilterBackend,
-    ]
-
-    filter_fields = [
-        'part',
-    ]
-
-
 cat_api_urls = [
 
     url(r'^(?P<pk>\d+)/?', CategoryDetail.as_view(), name='api-part-category-detail'),
@@ -305,13 +238,6 @@ cat_api_urls = [
     url(r'^$', CategoryList.as_view(), name='api-part-category-list'),
 ]
 
-supplier_part_api_urls = [
-
-    url(r'^(?P<pk>\d+)/?', SupplierPartDetail.as_view(), name='api-supplier-part-detail'),
-
-    # Catch anything else
-    url(r'^.*$', SupplierPartList.as_view(), name='api-part-supplier-list'),
-]
 
 part_star_api_urls = [
     url(r'^(?P<pk>\d+)/?', PartStarDetail.as_view(), name='api-part-star-detail'),
@@ -320,21 +246,19 @@ part_star_api_urls = [
     url(r'^.*$', PartStarList.as_view(), name='api-part-star-list'),
 ]
 
+
 part_api_urls = [
     url(r'^tree/?', PartCategoryTree.as_view(), name='api-part-tree'),
 
     url(r'^category/', include(cat_api_urls)),
-    url(r'^supplier/', include(supplier_part_api_urls)),
-
     url(r'^star/', include(part_star_api_urls)),
 
-    url(r'^price-break/?', SupplierPriceBreakList.as_view(), name='api-part-supplier-price'),
-
     url(r'^(?P<pk>\d+)/', PartDetail.as_view(), name='api-part-detail'),
 
     url(r'^.*$', PartList.as_view(), name='api-part-list'),
 ]
 
+
 bom_api_urls = [
     # BOM Item Detail
     url('^(?P<pk>\d+)/', BomDetail.as_view(), name='api-bom-detail'),

InvenTree/part/forms.py

@@ -11,7 +11,6 @@ from django import forms
 
 from .models import Part, PartCategory, PartAttachment
 from .models import BomItem
-from .models import SupplierPart
 
 
 class PartImageForm(HelperForm):
@@ -141,24 +140,17 @@ class EditBomItemForm(HelperForm):
         widgets = {'part': forms.HiddenInput()}
 
 
-class EditSupplierPartForm(HelperForm):
+class PartPriceForm(forms.Form):
-    """ Form for editing a SupplierPart object """
+    """ Simple form for viewing part pricing information """
+
+    quantity = forms.IntegerField(
+        required=True,
+        initial=1,
+        help_text='Input quantity for price calculation'
+    )
 
     class Meta:
-        model = SupplierPart
+        model = Part
         fields = [
-            'part',
+            'quantity'
-            'supplier',
-            'SKU',
-            'description',
-            'manufacturer',
-            'MPN',
-            'URL',
-            'note',
-            'single_price',
-            'base_cost',
-            'multiple',
-            'minimum',
-            'packaging',
-            'lead_time'
         ]

InvenTree/part/migrations/0001_initial.py

@@ -1,7 +1,7 @@
-# -*- coding: utf-8 -*-
+# Generated by Django 2.2 on 2019-05-18 14:04
-# Generated by Django 1.11.12 on 2018-04-22 11:53
-from __future__ import unicode_literals
 
+import InvenTree.validators
+from django.conf import settings
 import django.core.validators
 from django.db import migrations, models
 import django.db.models.deletion
@@ -13,7 +13,7 @@ class Migration(migrations.Migration):
     initial = True
 
     dependencies = [
-        ('company', '0001_initial'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
     ]
 
     operations = [
@@ -21,7 +21,9 @@ class Migration(migrations.Migration):
             name='BomItem',
             fields=[
                 ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('quantity', models.PositiveIntegerField(default=1, validators=[django.core.validators.MinValueValidator(0)])),
+                ('quantity', models.PositiveIntegerField(default=1, help_text='BOM quantity for this BOM item', validators=[django.core.validators.MinValueValidator(0)])),
+                ('overage', models.CharField(blank=True, help_text='Estimated build wastage quantity (absolute or percentage)', max_length=24, validators=[InvenTree.validators.validate_overage])),
+                ('note', models.CharField(blank=True, help_text='BOM item notes', max_length=100)),
             ],
             options={
                 'verbose_name': 'BOM Item',
@@ -31,18 +33,24 @@ class Migration(migrations.Migration):
             name='Part',
             fields=[
                 ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('name', models.CharField(help_text='Part name (must be unique)', max_length=100, unique=True)),
+                ('name', models.CharField(help_text='Part name', max_length=100, validators=[InvenTree.validators.validate_part_name])),
+                ('variant', models.CharField(blank=True, help_text='Part variant or revision code', max_length=32)),
                 ('description', models.CharField(help_text='Part description', max_length=250)),
+                ('keywords', models.CharField(blank=True, help_text='Part keywords to improve visibility in search results', max_length=250)),
                 ('IPN', models.CharField(blank=True, help_text='Internal Part Number', max_length=100)),
                 ('URL', models.URLField(blank=True, help_text='Link to extenal URL')),
                 ('image', models.ImageField(blank=True, max_length=255, null=True, upload_to=part.models.rename_part_image)),
                 ('minimum_stock', models.PositiveIntegerField(default=0, help_text='Minimum allowed stock level', validators=[django.core.validators.MinValueValidator(0)])),
-                ('units', models.CharField(blank=True, default='pcs', max_length=20)),
+                ('units', models.CharField(blank=True, default='pcs', help_text='Stock keeping units for this part', max_length=20)),
                 ('buildable', models.BooleanField(default=False, help_text='Can this part be built from other parts?')),
+                ('consumable', models.BooleanField(default=True, help_text='Can this part be used to build other parts?')),
                 ('trackable', models.BooleanField(default=False, help_text='Does this part have tracking for unique items?')),
                 ('purchaseable', models.BooleanField(default=True, help_text='Can this part be purchased from external suppliers?')),
                 ('salable', models.BooleanField(default=False, help_text='Can this part be sold to customers?')),
+                ('active', models.BooleanField(default=True, help_text='Is this part active?')),
                 ('notes', models.TextField(blank=True)),
+                ('bom_checksum', models.CharField(blank=True, help_text='Stored BOM checksum', max_length=128)),
+                ('bom_checked_date', models.DateField(blank=True, null=True)),
             ],
             options={
                 'verbose_name': 'Part',
@@ -53,8 +61,8 @@ class Migration(migrations.Migration):
             name='PartAttachment',
             fields=[
                 ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('attachment', models.FileField(blank=True, null=True, upload_to=part.models.attach_file)),
+                ('attachment', models.FileField(help_text='Select file to attach', upload_to=part.models.attach_file)),
-                ('part', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='attachments', to='part.Part')),
+                ('comment', models.CharField(help_text='File comment', max_length=100)),
             ],
         ),
         migrations.CreateModel(
@@ -63,7 +71,7 @@ class Migration(migrations.Migration):
                 ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                 ('name', models.CharField(max_length=100, unique=True)),
                 ('description', models.CharField(max_length=250)),
-                ('parent', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.DO_NOTHING, related_name='children', to='part.PartCategory')),
+                ('default_keywords', models.CharField(blank=True, help_text='Default keywords for parts in this category', max_length=250)),
             ],
             options={
                 'verbose_name': 'Part Category',
@@ -71,63 +79,11 @@ class Migration(migrations.Migration):
             },
         ),
         migrations.CreateModel(
-            name='SupplierPart',
+            name='PartStar',
             fields=[
                 ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('SKU', models.CharField(help_text='Supplier stock keeping unit', max_length=100)),
+                ('part', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='starred_users', to='part.Part')),
-                ('manufacturer', models.CharField(blank=True, help_text='Manufacturer', max_length=100)),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='starred_parts', to=settings.AUTH_USER_MODEL)),
-                ('MPN', models.CharField(blank=True, help_text='Manufacturer part number', max_length=100)),
-                ('URL', models.URLField(blank=True)),
-                ('description', models.CharField(blank=True, max_length=250)),
-                ('single_price', models.DecimalField(decimal_places=3, default=0, max_digits=10)),
-                ('base_cost', models.DecimalField(decimal_places=3, default=0, max_digits=10)),
-                ('packaging', models.CharField(blank=True, max_length=50)),
-                ('multiple', models.PositiveIntegerField(default=1, validators=[django.core.validators.MinValueValidator(0)])),
-                ('minimum', models.PositiveIntegerField(default=1, validators=[django.core.validators.MinValueValidator(0)])),
-                ('lead_time', models.DurationField(blank=True, null=True)),
-                ('part', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='supplier_parts', to='part.Part')),
-                ('supplier', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='parts', to='company.Company')),
             ],
         ),
-        migrations.CreateModel(
-            name='SupplierPriceBreak',
-            fields=[
-                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('quantity', models.PositiveIntegerField(validators=[django.core.validators.MinValueValidator(0)])),
-                ('cost', models.DecimalField(decimal_places=3, max_digits=10)),
-                ('part', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='price_breaks', to='part.SupplierPart')),
-            ],
-        ),
-        migrations.AddField(
-            model_name='part',
-            name='category',
-            field=models.ForeignKey(blank=True, help_text='Part category', null=True, on_delete=django.db.models.deletion.DO_NOTHING, related_name='parts', to='part.PartCategory'),
-        ),
-        migrations.AddField(
-            model_name='part',
-            name='default_supplier',
-            field=models.ForeignKey(blank=True, help_text='Default supplier part', null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='default_parts', to='part.SupplierPart'),
-        ),
-        migrations.AddField(
-            model_name='bomitem',
-            name='part',
-            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='bom_items', to='part.Part'),
-        ),
-        migrations.AddField(
-            model_name='bomitem',
-            name='sub_part',
-            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='used_in', to='part.Part'),
-        ),
-        migrations.AlterUniqueTogether(
-            name='supplierpricebreak',
-            unique_together=set([('part', 'quantity')]),
-        ),
-        migrations.AlterUniqueTogether(
-            name='supplierpart',
-            unique_together=set([('part', 'supplier', 'SKU')]),
-        ),
-        migrations.AlterUniqueTogether(
-            name='bomitem',
-            unique_together=set([('part', 'sub_part')]),
-        ),
     ]

InvenTree/part/migrations/0002_auto_20190519_0004.py

@@ -0,0 +1,77 @@
+# Generated by Django 2.2 on 2019-05-18 14:04
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('company', '0002_auto_20190519_0004'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('stock', '0001_initial'),
+        ('part', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='partcategory',
+            name='default_location',
+            field=models.ForeignKey(blank=True, help_text='Default location for parts in this category', null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='default_categories', to='stock.StockLocation'),
+        ),
+        migrations.AddField(
+            model_name='partcategory',
+            name='parent',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.DO_NOTHING, related_name='children', to='part.PartCategory'),
+        ),
+        migrations.AddField(
+            model_name='partattachment',
+            name='part',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='attachments', to='part.Part'),
+        ),
+        migrations.AddField(
+            model_name='part',
+            name='bom_checked_by',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='boms_checked', to=settings.AUTH_USER_MODEL),
+        ),
+        migrations.AddField(
+            model_name='part',
+            name='category',
+            field=models.ForeignKey(blank=True, help_text='Part category', null=True, on_delete=django.db.models.deletion.DO_NOTHING, related_name='parts', to='part.PartCategory'),
+        ),
+        migrations.AddField(
+            model_name='part',
+            name='default_location',
+            field=models.ForeignKey(blank=True, help_text='Where is this item normally stored?', null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='default_parts', to='stock.StockLocation'),
+        ),
+        migrations.AddField(
+            model_name='part',
+            name='default_supplier',
+            field=models.ForeignKey(blank=True, help_text='Default supplier part', null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='default_parts', to='company.SupplierPart'),
+        ),
+        migrations.AddField(
+            model_name='bomitem',
+            name='part',
+            field=models.ForeignKey(help_text='Select parent part', limit_choices_to={'active': True, 'buildable': True}, on_delete=django.db.models.deletion.CASCADE, related_name='bom_items', to='part.Part'),
+        ),
+        migrations.AddField(
+            model_name='bomitem',
+            name='sub_part',
+            field=models.ForeignKey(help_text='Select part to be used in BOM', limit_choices_to={'active': True, 'consumable': True}, on_delete=django.db.models.deletion.CASCADE, related_name='used_in', to='part.Part'),
+        ),
+        migrations.AlterUniqueTogether(
+            name='partstar',
+            unique_together={('part', 'user')},
+        ),
+        migrations.AlterUniqueTogether(
+            name='part',
+            unique_together={('name', 'variant')},
+        ),
+        migrations.AlterUniqueTogether(
+            name='bomitem',
+            unique_together={('part', 'sub_part')},
+        ),
+    ]

InvenTree/part/migrations/0002_part_default_location.py

@@ -1,22 +0,0 @@
-# -*- coding: utf-8 -*-
-# Generated by Django 1.11.12 on 2018-04-22 11:53
-from __future__ import unicode_literals
-
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0001_initial'),
-        ('part', '0001_initial'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='part',
-            name='default_location',
-            field=models.ForeignKey(blank=True, help_text='Where is this item normally stored?', null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='default_parts', to='stock.StockLocation'),
-        ),
-    ]

InvenTree/part/migrations/0003_auto_20190412_2030.py

@@ -1,19 +0,0 @@
-# Generated by Django 2.2 on 2019-04-12 10:30
-
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('part', '0002_part_default_location'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='bomitem',
-            name='part',
-            field=models.ForeignKey(limit_choices_to={'buildable': True}, on_delete=django.db.models.deletion.CASCADE, related_name='bom_items', to='part.Part'),
-        ),
-    ]

InvenTree/part/migrations/0004_bomitem_note.py

@@ -1,18 +0,0 @@
-# Generated by Django 2.2 on 2019-04-14 08:25
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('part', '0003_auto_20190412_2030'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='bomitem',
-            name='note',
-            field=models.CharField(blank=True, help_text='Item notes', max_length=100),
-        ),
-    ]

InvenTree/part/migrations/0005_part_consumable.py

@@ -1,18 +0,0 @@
-# Generated by Django 2.2 on 2019-04-15 13:48
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('part', '0004_bomitem_note'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='part',
-            name='consumable',
-            field=models.BooleanField(default=False, help_text='Can this part be used to build other parts?'),
-        ),
-    ]

InvenTree/part/migrations/0006_auto_20190416_2354.py

@@ -1,30 +0,0 @@
-# Generated by Django 2.2 on 2019-04-16 13:54
-
-import django.core.validators
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('part', '0005_part_consumable'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='bomitem',
-            name='sub_part',
-            field=models.ForeignKey(limit_choices_to={'consumable': True}, on_delete=django.db.models.deletion.CASCADE, related_name='used_in', to='part.Part'),
-        ),
-        migrations.AlterField(
-            model_name='part',
-            name='consumable',
-            field=models.BooleanField(default=True, help_text='Can this part be used to build other parts?'),
-        ),
-        migrations.AlterField(
-            model_name='supplierpricebreak',
-            name='quantity',
-            field=models.PositiveIntegerField(validators=[django.core.validators.MinValueValidator(2)]),
-        ),
-    ]

InvenTree/part/migrations/0007_auto_20190417_0007.py

@@ -1,54 +0,0 @@
-# Generated by Django 2.2 on 2019-04-16 14:07
-
-import django.core.validators
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('part', '0006_auto_20190416_2354'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='supplierpart',
-            name='note',
-            field=models.CharField(blank=True, help_text='Notes', max_length=100),
-        ),
-        migrations.AlterField(
-            model_name='supplierpart',
-            name='base_cost',
-            field=models.DecimalField(decimal_places=3, default=0, help_text='Minimum charge (e.g. stocking fee)', max_digits=10, validators=[django.core.validators.MinValueValidator(0)]),
-        ),
-        migrations.AlterField(
-            model_name='supplierpart',
-            name='description',
-            field=models.CharField(blank=True, help_text='Supplier part description', max_length=250),
-        ),
-        migrations.AlterField(
-            model_name='supplierpart',
-            name='minimum',
-            field=models.PositiveIntegerField(default=1, help_text='Minimum order quantity (MOQ)', validators=[django.core.validators.MinValueValidator(0)]),
-        ),
-        migrations.AlterField(
-            model_name='supplierpart',
-            name='multiple',
-            field=models.PositiveIntegerField(default=1, help_text='Order multiple', validators=[django.core.validators.MinValueValidator(0)]),
-        ),
-        migrations.AlterField(
-            model_name='supplierpart',
-            name='packaging',
-            field=models.CharField(blank=True, help_text='Part packaging', max_length=50),
-        ),
-        migrations.AlterField(
-            model_name='supplierpart',
-            name='single_price',
-            field=models.DecimalField(decimal_places=3, default=0, help_text='Price for single quantity', max_digits=10, validators=[django.core.validators.MinValueValidator(0)]),
-        ),
-        migrations.AlterField(
-            model_name='supplierpricebreak',
-            name='cost',
-            field=models.DecimalField(decimal_places=3, max_digits=10, validators=[django.core.validators.MinValueValidator(0)]),
-        ),
-    ]

InvenTree/part/migrations/0008_auto_20190417_0013.py

@@ -1,19 +0,0 @@
-# Generated by Django 2.2 on 2019-04-16 14:13
-
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('part', '0007_auto_20190417_0007'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='supplierpart',
-            name='part',
-            field=models.ForeignKey(limit_choices_to={'purchasable': True}, on_delete=django.db.models.deletion.CASCADE, related_name='supplier_parts', to='part.Part'),
-        ),
-    ]

InvenTree/part/migrations/0009_auto_20190417_0019.py

@@ -1,19 +0,0 @@
-# Generated by Django 2.2 on 2019-04-16 14:19
-
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('part', '0008_auto_20190417_0013'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='supplierpart',
-            name='part',
-            field=models.ForeignKey(limit_choices_to={'purchaseable': True}, on_delete=django.db.models.deletion.CASCADE, related_name='supplier_parts', to='part.Part'),
-        ),
-    ]

InvenTree/part/migrations/0010_auto_20190417_0045.py

@@ -1,24 +0,0 @@
-# Generated by Django 2.2 on 2019-04-16 14:45
-
-import django.core.validators
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('part', '0009_auto_20190417_0019'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='supplierpart',
-            name='minimum',
-            field=models.PositiveIntegerField(default=1, help_text='Minimum order quantity (MOQ)', validators=[django.core.validators.MinValueValidator(1)]),
-        ),
-        migrations.AlterField(
-            model_name='supplierpart',
-            name='multiple',
-            field=models.PositiveIntegerField(default=1, help_text='Order multiple', validators=[django.core.validators.MinValueValidator(1)]),
-        ),
-    ]

InvenTree/part/migrations/0011_auto_20190428_0841.py

@@ -1,19 +0,0 @@
-# Generated by Django 2.2 on 2019-04-27 22:41
-
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('part', '0010_auto_20190417_0045'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='supplierpart',
-            name='supplier',
-            field=models.ForeignKey(limit_choices_to={'is_supplier': True}, on_delete=django.db.models.deletion.CASCADE, related_name='parts', to='company.Company'),
-        ),
-    ]

InvenTree/part/migrations/0012_part_active.py

@@ -1,23 +0,0 @@
-# Generated by Django 2.2 on 2019-04-28 13:00
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('part', '0011_auto_20190428_0841'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='part',
-            name='active',
-            field=models.BooleanField(default=True, help_text='Is this part active?'),
-        ),
-		migrations.AddField(
-            model_name='partattachment',
-            name='comment',
-            field=models.CharField(blank=True, help_text='File comment', max_length=100),
-        ),
-    ]

InvenTree/part/migrations/0013_auto_20190429_2229.py

@@ -1,18 +0,0 @@
-# Generated by Django 2.2 on 2019-04-29 12:29
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('part', '0012_part_active'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='part',
-            name='URL',
-            field=models.URLField(blank=True, help_text='Link to external URL'),
-        ),
-    ]

InvenTree/part/migrations/0014_auto_20190502_2039.py

@@ -1,18 +0,0 @@
-# Generated by Django 2.2 on 2019-05-02 10:39
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('part', '0013_auto_20190429_2229'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='part',
-            name='URL',
-            field=models.URLField(blank=True, help_text='Link to extenal URL'),
-        ),
-    ]

InvenTree/part/migrations/0015_partcategory_default_location.py

@@ -1,20 +0,0 @@
-# Generated by Django 2.2 on 2019-05-04 08:57
-
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0013_remove_stockitem_uuid'),
-        ('part', '0014_auto_20190502_2039'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='partcategory',
-            name='default_location',
-            field=models.ForeignKey(blank=True, help_text='Default location for parts in this category', null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='default_categories', to='stock.StockLocation'),
-        ),
-    ]

InvenTree/part/migrations/0016_partstar.py

@@ -1,24 +0,0 @@
-# Generated by Django 2.2 on 2019-05-04 22:45
-
-from django.conf import settings
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
-        ('part', '0015_partcategory_default_location'),
-    ]
-
-    operations = [
-        migrations.CreateModel(
-            name='PartStar',
-            fields=[
-                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('part', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='starred_users', to='part.Part')),
-                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='starred_parts', to=settings.AUTH_USER_MODEL)),
-            ],
-        ),
-    ]

InvenTree/part/migrations/0017_auto_20190505_0848.py

@@ -1,19 +0,0 @@
-# Generated by Django 2.2 on 2019-05-04 22:48
-
-from django.conf import settings
-from django.db import migrations
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
-        ('part', '0016_partstar'),
-    ]
-
-    operations = [
-        migrations.AlterUniqueTogether(
-            name='partstar',
-            unique_together={('part', 'user')},
-        ),
-    ]

InvenTree/part/migrations/0018_auto_20190505_2231.py

@@ -1,24 +0,0 @@
-# Generated by Django 2.2 on 2019-05-05 12:31
-
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('part', '0017_auto_20190505_0848'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='bomitem',
-            name='part',
-            field=models.ForeignKey(limit_choices_to={'active': True, 'buildable': True}, on_delete=django.db.models.deletion.CASCADE, related_name='bom_items', to='part.Part'),
-        ),
-        migrations.AlterField(
-            model_name='bomitem',
-            name='sub_part',
-            field=models.ForeignKey(limit_choices_to={'active': True, 'consumable': True}, on_delete=django.db.models.deletion.CASCADE, related_name='used_in', to='part.Part'),
-        ),
-    ]

InvenTree/part/migrations/0020_auto_20190510_2022.py

@@ -1,27 +0,0 @@
-# Generated by Django 2.2 on 2019-05-10 10:22
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('part', '0019_auto_20190508_2332'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='part',
-            name='variant',
-            field=models.CharField(blank=True, help_text='Part variant or revision code', max_length=32),
-        ),
-        migrations.AlterField(
-            model_name='part',
-            name='name',
-            field=models.CharField(help_text='Part name', max_length=100),
-        ),
-        migrations.AlterUniqueTogether(
-            name='part',
-            unique_together={('name', 'variant')},
-        ),
-    ]

InvenTree/part/migrations/0021_auto_20190510_2220.py

@@ -1,19 +0,0 @@
-# Generated by Django 2.2 on 2019-05-10 12:20
-
-import InvenTree.validators
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('part', '0020_auto_20190510_2022'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='part',
-            name='name',
-            field=models.CharField(help_text='Part name', max_length=100, validators=[InvenTree.validators.validate_part_name]),
-        ),
-    ]

InvenTree/part/migrations/0022_auto_20190512_1246.py

@@ -1,31 +0,0 @@
-# Generated by Django 2.2 on 2019-05-12 02:46
-
-from django.conf import settings
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
-        ('part', '0021_auto_20190510_2220'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='part',
-            name='bom_checked_by',
-            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='boms_checked', to=settings.AUTH_USER_MODEL),
-        ),
-        migrations.AddField(
-            model_name='part',
-            name='bom_checked_date',
-            field=models.DateField(blank=True, null=True),
-        ),
-        migrations.AddField(
-            model_name='part',
-            name='bom_checksum',
-            field=models.CharField(blank=True, help_text='Stored BOM checksum', max_length=128),
-        ),
-    ]

InvenTree/part/migrations/0023_part_keywords.py

@@ -1,18 +0,0 @@
-# Generated by Django 2.2 on 2019-05-14 07:15
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('part', '0022_auto_20190512_1246'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='part',
-            name='keywords',
-            field=models.CharField(blank=True, help_text='Part keywords to improve visibility in search results', max_length=250),
-        ),
-    ]

InvenTree/part/migrations/0024_partcategory_default_keywords.py

@@ -1,18 +0,0 @@
-# Generated by Django 2.2 on 2019-05-14 07:27
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('part', '0023_part_keywords'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='partcategory',
-            name='default_keywords',
-            field=models.CharField(blank=True, help_text='Default keywords for parts in this category', max_length=250),
-        ),
-    ]

InvenTree/part/migrations/0025_auto_20190515_0012.py

@@ -1,46 +0,0 @@
-# Generated by Django 2.2 on 2019-05-14 14:12
-
-import InvenTree.validators
-import django.core.validators
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('part', '0024_partcategory_default_keywords'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='bomitem',
-            name='overage',
-            field=models.CharField(blank=True, help_text='Estimated build wastage quantity (absolute or percentage)', max_length=24, validators=[InvenTree.validators.validate_overage]),
-        ),
-        migrations.AlterField(
-            model_name='bomitem',
-            name='note',
-            field=models.CharField(blank=True, help_text='BOM item notes', max_length=100),
-        ),
-        migrations.AlterField(
-            model_name='bomitem',
-            name='part',
-            field=models.ForeignKey(help_text='Select parent part', limit_choices_to={'active': True, 'buildable': True}, on_delete=django.db.models.deletion.CASCADE, related_name='bom_items', to='part.Part'),
-        ),
-        migrations.AlterField(
-            model_name='bomitem',
-            name='quantity',
-            field=models.PositiveIntegerField(default=1, help_text='BOM quantity for this BOM item', validators=[django.core.validators.MinValueValidator(0)]),
-        ),
-        migrations.AlterField(
-            model_name='bomitem',
-            name='sub_part',
-            field=models.ForeignKey(help_text='Select part to be used in BOM', limit_choices_to={'active': True, 'consumable': True}, on_delete=django.db.models.deletion.CASCADE, related_name='used_in', to='part.Part'),
-        ),
-        migrations.AlterField(
-            model_name='supplierpart',
-            name='URL',
-            field=models.URLField(blank=True, help_text='URL for external supplier part link'),
-        ),
-    ]

InvenTree/part/models.py

@@ -7,8 +7,6 @@ from __future__ import unicode_literals
 
 import os
 
-import math
-
 import tablib
 
 from django.utils.translation import gettext_lazy as _
@@ -32,7 +30,8 @@ import hashlib
 from InvenTree import helpers
 from InvenTree import validators
 from InvenTree.models import InvenTreeTree
-from company.models import Company
+
+from company.models import SupplierPart
 
 
 class PartCategory(InvenTreeTree):
@@ -317,7 +316,7 @@ class Part(models.Model):
         # Default to None if there are multiple suppliers to choose from
         return None
 
-    default_supplier = models.ForeignKey('part.SupplierPart',
+    default_supplier = models.ForeignKey(SupplierPart,
                                          on_delete=models.SET_NULL,
                                          blank=True, null=True,
                                          help_text='Default supplier part',
@@ -562,6 +561,203 @@ class Part(models.Model):
         """ Return the number of supplier parts available for this part """
         return self.supplier_parts.count()
 
+    @property
+    def min_single_price(self):
+        return self.get_min_supplier_price(1)
+
+    @property
+    def max_single_price(self):
+        return self.get_max_supplier_price(1)
+
+    @property
+    def min_bom_price(self):
+        return self.get_min_bom_price(1)
+
+    @property
+    def max_bom_price(self):
+        return self.get_max_bom_price(1)
+
+    @property
+    def has_pricing_info(self):
+        """ Return true if there is pricing information for this part """
+        return self.get_min_price() is not None
+
+    @property
+    def has_complete_bom_pricing(self):
+        """ Return true if there is pricing information for each item in the BOM. """
+
+        for item in self.bom_items.all():
+            if not item.sub_part.has_pricing_info:
+                return False
+
+        return True
+
+    @property
+    def single_price_info(self):
+        """ Return a simplified pricing string for this part at single quantity """
+
+        return self.get_price_info()
+
+    def get_price_info(self, quantity=1, buy=True, bom=True):
+        """ Return a simplified pricing string for this part
+        
+        Args:
+            quantity: Number of units to calculate price for
+            buy: Include supplier pricing (default = True)
+            bom: Include BOM pricing (default = True)
+        """
+        
+        min_price = self.get_min_price(quantity, buy, bom)
+        max_price = self.get_max_price(quantity, buy, bom)
+
+        if min_price is None:
+            return None
+
+        if min_price == max_price:
+            return min_price
+
+        return "{a} to {b}".format(a=min_price, b=max_price)
+
+    def get_min_supplier_price(self, quantity=1):
+        """ Return the minimum price of this part from all available suppliers.
+        
+        Args:
+            quantity: Number of units we wish to purchase (default = 1)
+
+        Returns:
+            Numerical price if pricing is available, else None
+         """
+
+        min_price = None
+
+        for supplier_part in self.supplier_parts.all():
+            supplier_price = supplier_part.get_price(quantity)
+
+            if supplier_price is None:
+                continue
+
+            if min_price is None or supplier_price < min_price:
+                min_price = supplier_price
+
+        if min_price is None:
+            return None
+        else:
+            return min_price
+
+    def get_max_supplier_price(self, quantity=1):
+        """ Return the maximum price of this part from all available suppliers.
+        
+        Args:
+            quantity: Number of units we wish to purchase (default = 1)
+
+        Returns:
+            Numerical price if pricing is available, else None
+         """
+
+        max_price = None
+
+        for supplier_part in self.supplier_parts.all():
+            supplier_price = supplier_part.get_price(quantity)
+
+            if supplier_price is None:
+                continue
+
+            if max_price is None or supplier_price > max_price:
+                max_price = supplier_price
+
+        if max_price is None:
+            return None
+        else:
+            return max_price
+
+    def get_min_bom_price(self, quantity=1):
+        """ Return the minimum price of the BOM for this part.
+        Adds the minimum price for all components in the BOM.
+
+        Note: If the BOM contains items without pricing information,
+        these items cannot be included in the BOM!
+        """
+
+        min_price = None
+
+        for item in self.bom_items.all():
+            price = item.sub_part.get_min_price(quantity * item.quantity)
+
+            if price is None:
+                continue
+
+            if min_price is None:
+                min_price = 0
+
+            min_price += price
+
+        return min_price
+
+    def get_max_bom_price(self, quantity=1):
+        """ Return the maximum price of the BOM for this part.
+        Adds the maximum price for all components in the BOM.
+
+        Note: If the BOM contains items without pricing information,
+        these items cannot be included in the BOM!
+        """
+
+        max_price = None
+
+        for item in self.bom_items.all():
+            price = item.sub_part.get_max_price(quantity * item.quantity)
+
+            if price is None:
+                continue
+
+            if max_price is None:
+                max_price = 0
+
+            max_price += price
+
+        return max_price
+
+    def get_min_price(self, quantity=1, buy=True, bom=True):
+        """ Return the minimum price for this part. This price can be either:
+
+        - Supplier price (if purchased from suppliers)
+        - BOM price (if built from other parts)
+
+        Returns:
+            Minimum of the supplier price or BOM price. If no pricing available, returns None
+        """
+
+        buy_price = self.get_min_supplier_price(quantity) if buy else None
+        bom_price = self.get_min_bom_price(quantity) if bom else None
+
+        if buy_price is None:
+            return bom_price
+
+        if bom_price is None:
+            return buy_price
+        
+        return min(buy_price, bom_price)
+
+    def get_max_price(self, quantity=1, buy=True, bom=True):
+        """ Return the maximum price for this part. This price can be either:
+
+        - Supplier price (if purchsed from suppliers)
+        - BOM price (if built from other parts)
+
+        Returns:
+            Maximum of the supplier price or BOM price. If no pricing available, returns None
+        """
+
+        buy_price = self.get_max_supplier_price(quantity) if buy else None
+        bom_price = self.get_max_bom_price(quantity) if bom else None
+
+        if buy_price is None:
+            return bom_price
+
+        if bom_price is None:
+            return buy_price
+        
+        return max(buy_price, bom_price)
+
     def deepCopy(self, other, **kwargs):
         """ Duplicates non-field data from another part.
         Does not alter the normal fields of this part,
@@ -641,10 +837,10 @@ class PartAttachment(models.Model):
     part = models.ForeignKey(Part, on_delete=models.CASCADE,
                              related_name='attachments')
 
-    attachment = models.FileField(upload_to=attach_file, null=True, blank=True,
+    attachment = models.FileField(upload_to=attach_file,
                                   help_text='Select file to attach')
 
-    comment = models.CharField(max_length=100, blank=True, help_text='File comment')
+    comment = models.CharField(max_length=100, help_text='File comment')
 
     @property
     def basename(self):
@@ -800,164 +996,7 @@ class BomItem(models.Model):
 
         return base_quantity + self.get_overage_quantity(base_quantity)
 
-
-class SupplierPart(models.Model):
-    """ Represents a unique part as provided by a Supplier
-    Each SupplierPart is identified by a MPN (Manufacturer Part Number)
-    Each SupplierPart is also linked to a Part object.
-    A Part may be available from multiple suppliers
-
-    Attributes:
-        part: Link to the master Part
-        supplier: Company that supplies this SupplierPart object
-        SKU: Stock keeping unit (supplier part number)
-        manufacturer: Manufacturer name
-        MPN: Manufacture part number
-        URL: Link to external website for this part
-        description: Descriptive notes field
-        note: Longer form note field
-        single_price: Default price for a single unit
-        base_cost: Base charge added to order independent of quantity e.g. "Reeling Fee"
-        multiple: Multiple that the part is provided in
-        minimum: MOQ (minimum order quantity) required for purchase
-        lead_time: Supplier lead time
-        packaging: packaging that the part is supplied in, e.g. "Reel"
-    """
-
-    def get_absolute_url(self):
-        return reverse('supplier-part-detail', kwargs={'pk': self.id})
-
-    class Meta:
-        unique_together = ('part', 'supplier', 'SKU')
-
-    part = models.ForeignKey(Part, on_delete=models.CASCADE,
-                             related_name='supplier_parts',
-                             limit_choices_to={'purchaseable': True},
-                             help_text='Select part',
-                             )
-
-    supplier = models.ForeignKey(Company, on_delete=models.CASCADE,
-                                 related_name='parts',
-                                 limit_choices_to={'is_supplier': True},
-                                 help_text='Select supplier',
-                                 )
-
-    SKU = models.CharField(max_length=100, help_text='Supplier stock keeping unit')
-
-    manufacturer = models.CharField(max_length=100, blank=True, help_text='Manufacturer')
-
-    MPN = models.CharField(max_length=100, blank=True, help_text='Manufacturer part number')
-
-    URL = models.URLField(blank=True, help_text='URL for external supplier part link')
-
-    description = models.CharField(max_length=250, blank=True, help_text='Supplier part description')
-
-    note = models.CharField(max_length=100, blank=True, help_text='Notes')
-
-    single_price = models.DecimalField(max_digits=10, decimal_places=3, default=0, validators=[MinValueValidator(0)], help_text='Price for single quantity')
-
-    base_cost = models.DecimalField(max_digits=10, decimal_places=3, default=0, validators=[MinValueValidator(0)], help_text='Minimum charge (e.g. stocking fee)')
-
-    packaging = models.CharField(max_length=50, blank=True, help_text='Part packaging')
-    
-    multiple = models.PositiveIntegerField(default=1, validators=[MinValueValidator(1)], help_text='Order multiple')
-
-    minimum = models.PositiveIntegerField(default=1, validators=[MinValueValidator(1)], help_text='Minimum order quantity (MOQ)')
-
-    lead_time = models.DurationField(blank=True, null=True)
-
     @property
-    def manufacturer_string(self):
+    def price_info(self):
-
+        """ Return the price for this item in the BOM """
-        items = []
+        return self.sub_part.get_price_info(self.quantity)
-
-        if self.manufacturer:
-            items.append(self.manufacturer)
-        if self.MPN:
-            items.append(self.MPN)
-
-        return ' | '.join(items)
-
-    @property
-    def has_price_breaks(self):
-        return self.price_breaks.count() > 0
-
-    def get_price(self, quantity, moq=True, multiples=True):
-        """ Calculate the supplier price based on quantity price breaks.
-        
-        - If no price breaks available, use the single_price field
-        - Don't forget to add in flat-fee cost (base_cost field)
-        - If MOQ (minimum order quantity) is required, bump quantity
-        - If order multiples are to be observed, then we need to calculate based on that, too
-        """
-
-        # Order multiples
-        if multiples:
-            quantity = int(math.ceil(quantity / self.multipe) * self.multiple)
-
-        # Minimum ordering requirement
-        if moq and self.minimum > quantity:
-            quantity = self.minimum
-
-        pb_found = False
-        pb_quantity = -1
-        pb_cost = 0.0
-
-        for pb in self.price_breaks.all():
-            # Ignore this pricebreak!
-            if pb.quantity > quantity:
-                continue
-
-            pb_found = True
-
-            # If this price-break quantity is the largest so far, use it!
-            if pb.quantity > pb_quantity:
-                pb_quantity = pb.quantity
-                pb_cost = pb.cost
-
-        # No appropriate price-break found - use the single cost!
-        if pb_found:
-            cost = pb_cost * quantity
-        else:
-            cost = self.single_price * quantity
-
-        return cost + self.base_cost
-
-    def __str__(self):
-        s = "{supplier} ({sku})".format(
-            sku=self.SKU,
-            supplier=self.supplier.name)
-
-        if self.manufacturer_string:
-            s = s + ' - ' + self.manufacturer_string
-        
-        return s
-
-
-class SupplierPriceBreak(models.Model):
-    """ Represents a quantity price break for a SupplierPart.
-    - Suppliers can offer discounts at larger quantities
-    - SupplierPart(s) may have zero-or-more associated SupplierPriceBreak(s)
-
-    Attributes:
-        part: Link to a SupplierPart object that this price break applies to
-        quantity: Quantity required for price break
-        cost: Cost at specified quantity
-    """
-
-    part = models.ForeignKey(SupplierPart, on_delete=models.CASCADE, related_name='price_breaks')
-
-    # At least 2 units are required for a 'price break' - Otherwise, just use single-price!
-    quantity = models.PositiveIntegerField(validators=[MinValueValidator(2)])
-
-    cost = models.DecimalField(max_digits=10, decimal_places=3, validators=[MinValueValidator(0)])
-
-    class Meta:
-        unique_together = ("part", "quantity")
-
-    def __str__(self):
-        return "{mpn} - {cost}{currency} @ {quan}".format(
-            mpn=self.part.MPN,
-            cost=self.cost,
-            currency=self.currency if self.currency else '',
-            quan=self.quantity)

InvenTree/part/serializers.py

@@ -5,7 +5,7 @@ JSON serializers for Part app
 from rest_framework import serializers
 
 from .models import Part, PartStar
-from .models import SupplierPart, SupplierPriceBreak
+
 from .models import PartCategory
 from .models import BomItem
 
@@ -34,6 +34,7 @@ class PartBriefSerializer(serializers.ModelSerializer):
 
     url = serializers.CharField(source='get_absolute_url', read_only=True)
     image_url = serializers.CharField(source='get_image_url', read_only=True)
+    single_price_info = serializers.CharField(read_only=True)
     
     class Meta:
         model = Part
@@ -43,6 +44,7 @@ class PartBriefSerializer(serializers.ModelSerializer):
             'full_name',
             'description',
             'available_stock',
+            'single_price_info',
             'image_url',
         ]
 
@@ -106,6 +108,7 @@ class BomItemSerializer(InvenTreeModelSerializer):
 
     part_detail = PartBriefSerializer(source='part', many=False, read_only=True)
     sub_part_detail = PartBriefSerializer(source='sub_part', many=False, read_only=True)
+    price_info = serializers.CharField(read_only=True)
 
     class Meta:
         model = BomItem
@@ -116,46 +119,7 @@ class BomItemSerializer(InvenTreeModelSerializer):
             'sub_part',
             'sub_part_detail',
             'quantity',
+            'price_info',
             'overage',
             'note',
         ]
-
-
-class SupplierPartSerializer(serializers.ModelSerializer):
-    """ Serializer for SupplierPart object """
-
-    url = serializers.CharField(source='get_absolute_url', read_only=True)
-
-    part_detail = PartBriefSerializer(source='part', many=False, read_only=True)
-
-    supplier_name = serializers.CharField(source='supplier.name', read_only=True)
-    supplier_logo = serializers.CharField(source='supplier.get_image_url', read_only=True)
-
-    class Meta:
-        model = SupplierPart
-        fields = [
-            'pk',
-            'url',
-            'part',
-            'part_detail',
-            'supplier',
-            'supplier_name',
-            'supplier_logo',
-            'SKU',
-            'manufacturer',
-            'MPN',
-            'URL',
-        ]
-
-
-class SupplierPriceBreakSerializer(serializers.ModelSerializer):
-    """ Serializer for SupplierPriceBreak object """
-
-    class Meta:
-        model = SupplierPriceBreak
-        fields = [
-            'pk',
-            'part',
-            'quantity',
-            'cost'
-        ]

InvenTree/part/templates/part/bom.html

@@ -11,6 +11,14 @@
 
 <h3>Bill of Materials</h3>
 
+{% if part.has_complete_bom_pricing == False %}
+<div class='alert alert-block alert-warning'>
+    The BOM for <i>{{ part.full_name }}</i> does not have complete pricing information
+</div>
+{% endif %}
+<div class='panel panel-default'>
+    Single BOM Price: {{ part.min_bom_price }} to {{ part.max_bom_price }}
+</div>
 {% if part.bom_checked_date %}
 {% if part.is_bom_valid %}
 <div class='alert alert-block alert-info'>

InvenTree/part/templates/part/part_base.html

@@ -32,10 +32,13 @@
         <p><i>{{ part.description }}</i></p>
         <p>
             <div class='btn-group'>
-                {% include "qr_button.html" %}
                 <button type='button' class='btn btn-default btn-glyph' id='toggle-starred' title='Star this part'>
                     <span id='part-star-icon' class='starred-part glyphicon {% if starred %}glyphicon-star{% else %}glyphicon-star-empty{% endif %}'/>
                 </button>
+                {% include "qr_button.html" %}
+                <button type='button' class='btn btn-default btn-glyph' id='price-button' title='Show pricing information'>
+                    <span id='part-price-icon' class='part-price glyphicon glyphicon-usd'/>
+                </button>
             </div>
         </p>
         <table class='table table-condensed'>
@@ -82,6 +85,25 @@
             <td>{{ part.allocation_count }}</td>
         </tr>
         {% endif %}
+        {% if part.supplier_count > 0 %}
+        <tr>
+            <td>
+                Price
+            </td>
+            <td>
+                {% if part.min_single_price %}
+                {% if part.min_single_price == part.max_single_price %}
+                {{ part.min_single_price }}
+                {% else %}
+                {{ part.min_single_price }} to {{ part.max_single_price }}
+                {% endif %}
+                from {{ part.supplier_count }} suppliers.
+                {% else %}
+                <span class='warning-msg'><i>No pricing data avilable</i></span>
+                {% endif %}
+            </td>
+        </tr>
+        {% endif %}
     </table>
 </div>
 </div>
@@ -122,6 +144,15 @@
         );
     });
 
+    $("#price-button").click(function() {
+        launchModalForm(
+            "{% url 'part-pricing' part.id %}",
+            {
+                submit_text: 'Calculate',
+            }
+        );
+    });
+
     $("#toggle-starred").click(function() {
         toggleStar({
             part: {{ part.id }},

InvenTree/part/templates/part/part_pricing.html

@@ -0,0 +1,88 @@
+{% extends "modal_form.html" %}
+
+{% block pre_form_content %}
+
+<div class='alert alert-info alert-block'>
+Calculate pricing information for {{ part }}.
+</div>
+
+<h4>Quantity</h4>
+<table class='table table-striped table-condensed'>
+    <tr>
+        <td><b>Part</b></td>
+        <td colspan='2'>{{ part  }}</td>
+    </tr>
+    <tr>
+        <td><b>Quantity</b></td>
+        <td colspan='2'>{{ quantity }}</td>
+    </tr>
+</table>
+    {% if part.supplier_count > 0 %}
+    <h4>Supplier Pricing</h4>
+<table class='table table-striped table-condensed'>
+    {% if min_total_buy_price %}
+    <tr>
+        <td><b>Unit Cost</b></td>
+        <td>Min: {{ min_unit_buy_price }}</td>
+        <td>Max: {{ max_unit_buy_price }}</td>
+    </tr>
+    {% if quantity > 1 %}
+    <tr>
+        <td><b>Total Cost</b></td>
+        <td>Min: {{ min_total_buy_price }}</td>
+        <td>Max: {{ max_total_buy_price }}</td>
+    </tr>
+    {% endif %}
+    {% else %}
+    <tr>
+        <td colspan='3'>
+            <span class='warning-msg'><i>No supplier pricing available</i></span>
+        </td>
+    </tr>
+    {% endif %}
+</table>
+    {% endif %}
+
+    {% if part.bom_count > 0 %}
+    <h4>BOM Pricing</h4>
+<table class='table table-striped table-condensed'>
+    {% if min_total_bom_price %}
+    <tr>
+        <td><b>Unit Cost</b></td>
+        <td>Min: {{ min_unit_bom_price }}</td>
+        <td>Max: {{ max_unit_bom_price }}</td>
+    </tr>
+    {% if quantity > 1 %}
+    <tr>
+        <td><b>Total Cost</b></td>
+        <td>Min: {{ min_total_bom_price }}</td>
+        <td>Max: {{ max_total_bom_price }}</td>
+    </tr>
+    {% endif %}
+    {% if part.has_complete_bom_pricing == False %}
+    <tr>
+        <td colspan='3'>
+            <span class='warning-msg'><i>Note: BOM pricing is incomplete for this part</i></span>
+        </td>
+    </tr>
+    {% endif %}
+    {% else %}
+    <tr>
+        <td colspan='3'>
+            <span class='warning-msg'><i>No BOM pricing available</i></span>
+        </td>
+    </tr>
+    {% endif %}
+</table>
+    {% endif %}
+
+{% if min_unit_buy_price or min_unit_bom_price %}
+{% else %}
+<div class='alert alert-danger alert-block'>
+    No pricing information is available for this part.
+</div>
+{% endif %}
+
+<hr>
+
+{% endblock %}

InvenTree/part/urls.py

@@ -12,19 +12,6 @@ from django.conf.urls import url, include
 
 from . import views
 
-supplier_part_detail_urls = [
-    url(r'edit/?', views.SupplierPartEdit.as_view(), name='supplier-part-edit'),
-    url(r'delete/?', views.SupplierPartDelete.as_view(), name='supplier-part-delete'),
-
-    url('^.*$', views.SupplierPartDetail.as_view(), name='supplier-part-detail'),
-]
-
-supplier_part_urls = [
-    url(r'^new/?', views.SupplierPartCreate.as_view(), name='supplier-part-create'),
-
-    url(r'^(?P<pk>\d+)/', include(supplier_part_detail_urls)),
-]
-
 part_attachment_urls = [
     url('^new/?', views.PartAttachmentCreate.as_view(), name='part-attachment-create'),
     url(r'^(?P<pk>\d+)/edit/?', views.PartAttachmentEdit.as_view(), name='part-attachment-edit'),
@@ -37,6 +24,7 @@ part_detail_urls = [
     url(r'^bom-export/?', views.BomDownload.as_view(), name='bom-export'),
     url(r'^validate-bom/', views.BomValidate.as_view(), name='bom-validate'),
     url(r'^duplicate/', views.PartDuplicate.as_view(), name='part-duplicate'),
+    url(r'^pricing/', views.PartPricing.as_view(), name='part-pricing'),
     
     url(r'^track/?', views.PartDetail.as_view(template_name='part/track.html'), name='part-track'),
     url(r'^attachments/?', views.PartDetail.as_view(template_name='part/attachments.html'), name='part-attachments'),

InvenTree/part/views.py

@@ -12,12 +12,12 @@ from django.views.generic import DetailView, ListView
 from django.forms.models import model_to_dict
 from django.forms import HiddenInput, CheckboxInput
 
-from company.models import Company
 from .models import PartCategory, Part, PartAttachment
 from .models import BomItem
-from .models import SupplierPart
 from .models import match_part_names
 
+from company.models import SupplierPart
+
 from . import forms as part_forms
 
 from InvenTree.views import AjaxView, AjaxCreateView, AjaxUpdateView, AjaxDeleteView
@@ -551,6 +551,80 @@ class PartDelete(AjaxDeleteView):
         }
 
 
+class PartPricing(AjaxView):
+    """ View for inspecting part pricing information """
+
+    model = Part
+    ajax_template_name = "part/part_pricing.html"
+    ajax_form_title = "Part Pricing"
+    form_class = part_forms.PartPriceForm
+
+    def get_part(self):
+        try:
+            return Part.objects.get(id=self.kwargs['pk'])
+        except Part.DoesNotExist:
+            return None
+
+    def get_pricing(self, quantity=1):
+
+        part = self.get_part()
+        
+        ctx = {
+            'part': part,
+            'quantity': quantity
+        }
+
+        if part is None:
+            return ctx
+
+        # Supplier pricing information
+        if part.supplier_count > 0:
+            min_buy_price = part.get_min_supplier_price(quantity)
+            max_buy_price = part.get_max_supplier_price(quantity)
+
+            if min_buy_price:
+                ctx['min_total_buy_price'] = min_buy_price
+                ctx['min_unit_buy_price'] = min_buy_price / quantity
+
+            if max_buy_price:
+                ctx['max_total_buy_price'] = max_buy_price
+                ctx['max_unit_buy_price'] = max_buy_price / quantity
+
+        # BOM pricing information
+        if part.bom_count > 0:
+
+            min_bom_price = part.get_min_bom_price(quantity)
+            max_bom_price = part.get_max_bom_price(quantity)
+
+            if min_bom_price:
+                ctx['min_total_bom_price'] = min_bom_price
+                ctx['min_unit_bom_price'] = min_bom_price / quantity
+            
+            if max_bom_price:
+                ctx['max_total_bom_price'] = max_bom_price
+                ctx['max_unit_bom_price'] = max_bom_price / quantity
+
+        return ctx
+
+    def get(self, request, *args, **kwargs):
+
+        return self.renderJsonResponse(request, self.form_class(), context=self.get_pricing())
+
+    def post(self, request, *args, **kwargs):
+
+        try:
+            quantity = int(self.request.POST.get('quantity', 1))
+        except ValueError:
+            quantity = 1
+
+        # Always mark the form as 'invalid' (the user may wish to keep getting pricing data)
+        data = {
+            'form_valid': False,
+        }
+
+        return self.renderJsonResponse(request, self.form_class(), data=data, context=self.get_pricing(quantity))
+
+
 class CategoryDetail(DetailView):
     """ Detail view for PartCategory """
     model = PartCategory
@@ -731,81 +805,3 @@ class BomItemDelete(AjaxDeleteView):
     ajax_template_name = 'part/bom-delete.html'
     context_object_name = 'item'
     ajax_form_title = 'Confim BOM item deletion'
-
-
-class SupplierPartDetail(DetailView):
-    """ Detail view for SupplierPart """
-    model = SupplierPart
-    template_name = 'company/partdetail.html'
-    context_object_name = 'part'
-    queryset = SupplierPart.objects.all()
-
-
-class SupplierPartEdit(AjaxUpdateView):
-    """ Update view for editing SupplierPart """
-
-    model = SupplierPart
-    context_object_name = 'part'
-    form_class = part_forms.EditSupplierPartForm
-    ajax_template_name = 'modal_form.html'
-    ajax_form_title = 'Edit Supplier Part'
-
-
-class SupplierPartCreate(AjaxCreateView):
-    """ Create view for making new SupplierPart """
-
-    model = SupplierPart
-    form_class = part_forms.EditSupplierPartForm
-    ajax_template_name = 'modal_form.html'
-    ajax_form_title = 'Create new Supplier Part'
-    context_object_name = 'part'
-
-    def get_form(self):
-        """ Create Form instance to create a new SupplierPart object.
-        Hide some fields if they are not appropriate in context
-        """
-        form = super(AjaxCreateView, self).get_form()
-        
-        if form.initial.get('supplier', None):
-            # Hide the supplier field
-            form.fields['supplier'].widget = HiddenInput()
-
-        if form.initial.get('part', None):
-            # Hide the part field
-            form.fields['part'].widget = HiddenInput()
-
-        return form
-
-    def get_initial(self):
-        """ Provide initial data for new SupplierPart:
-
-        - If 'supplier_id' provided, pre-fill supplier field
-        - If 'part_id' provided, pre-fill part field
-        """
-        initials = super(SupplierPartCreate, self).get_initial().copy()
-
-        supplier_id = self.get_param('supplier')
-        part_id = self.get_param('part')
-
-        if supplier_id:
-            try:
-                initials['supplier'] = Company.objects.get(pk=supplier_id)
-            except Company.DoesNotExist:
-                initials['supplier'] = None
-        
-        if part_id:
-            try:
-                initials['part'] = Part.objects.get(pk=part_id)
-            except Part.DoesNotExist:
-                initials['part'] = None
-        
-        return initials
-
-
-class SupplierPartDelete(AjaxDeleteView):
-    """ Delete view for removing a SupplierPart """
-    model = SupplierPart
-    success_url = '/supplier/'
-    ajax_template_name = 'company/partdelete.html'
-    ajax_form_title = 'Delete Supplier Part'
-    context_object_name = 'supplier_part'

InvenTree/static/css/inventree.css

@@ -3,15 +3,19 @@
 }
 
 .glyphicon {
-    font-size: 20px;
+    font-size: 18px;
 }
 
 .glyphicon-small {
-    font-size: 14px;
+    font-size: 12px;
 }
 
 .starred-part {
-    color: #ffcc00;
+    color: #ffbb00;
+}
+
+.part-price {
+    color: rgb(13, 245, 25);
 }
 
 /* CSS overrides for treeview */

InvenTree/static/script/inventree/bom.js

@@ -151,6 +151,19 @@ function loadBomTable(table, options) {
             }
         }
         );
+
+        cols.push({
+            field: 'price_info',
+            title: 'Price',
+            sortable: true,
+            formatter: function(value, row, index, field) {
+                if (value) {
+                    return value;
+                } else {
+                    return "<span class='warning-msg'><i>No pricing information</i></span>";
+                }
+            },
+        });
     }
     
     // Part notes

InvenTree/stock/migrations/0001_initial.py

@@ -1,6 +1,4 @@
-# -*- coding: utf-8 -*-
+# Generated by Django 2.2 on 2019-05-18 14:04
-# Generated by Django 1.11.12 on 2018-04-22 11:53
-from __future__ import unicode_literals
 
 from django.conf import settings
 import django.core.validators
@@ -14,8 +12,8 @@ class Migration(migrations.Migration):
 
     dependencies = [
         migrations.swappable_dependency(settings.AUTH_USER_MODEL),
-        ('part', '0001_initial'),
         ('company', '0001_initial'),
+        ('part', '0001_initial'),
     ]
 
     operations = [
@@ -25,30 +23,19 @@ class Migration(migrations.Migration):
                 ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                 ('serial', models.PositiveIntegerField(blank=True, help_text='Serial number for this item', null=True)),
                 ('URL', models.URLField(blank=True, max_length=125)),
-                ('batch', models.CharField(blank=True, help_text='Batch code for this stock item', max_length=100)),
+                ('batch', models.CharField(blank=True, help_text='Batch code for this stock item', max_length=100, null=True)),
-                ('quantity', models.PositiveIntegerField(validators=[django.core.validators.MinValueValidator(0)])),
+                ('quantity', models.PositiveIntegerField(default=1, validators=[django.core.validators.MinValueValidator(0)])),
-                ('updated', models.DateField(auto_now=True)),
+                ('updated', models.DateField(auto_now=True, null=True)),
                 ('stocktake_date', models.DateField(blank=True, null=True)),
                 ('review_needed', models.BooleanField(default=False)),
-                ('status', models.PositiveIntegerField(choices=[(10, 'OK'), (60, 'Destroyed'), (50, 'Attention needed'), (55, 'Damaged')], default=10, validators=[django.core.validators.MinValueValidator(0)])),
+                ('delete_on_deplete', models.BooleanField(default=True, help_text='Delete this Stock Item when stock is depleted')),
-                ('notes', models.TextField(blank=True)),
+                ('status', models.PositiveIntegerField(choices=[(10, 'OK'), (50, 'Attention needed'), (55, 'Damaged'), (60, 'Destroyed')], default=10, validators=[django.core.validators.MinValueValidator(0)])),
+                ('notes', models.CharField(blank=True, help_text='Stock Item Notes', max_length=250)),
                 ('infinite', models.BooleanField(default=False)),
                 ('belongs_to', models.ForeignKey(blank=True, help_text='Is this item installed in another item?', null=True, on_delete=django.db.models.deletion.DO_NOTHING, related_name='owned_parts', to='stock.StockItem')),
                 ('customer', models.ForeignKey(blank=True, help_text='Item assigned to customer?', null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='stockitems', to='company.Company')),
             ],
         ),
-        migrations.CreateModel(
-            name='StockItemTracking',
-            fields=[
-                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('date', models.DateField(auto_now_add=True)),
-                ('title', models.CharField(max_length=250)),
-                ('notes', models.TextField(blank=True)),
-                ('system', models.BooleanField(default=False)),
-                ('item', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='tracking_info', to='stock.StockItem')),
-                ('user', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to=settings.AUTH_USER_MODEL)),
-            ],
-        ),
         migrations.CreateModel(
             name='StockLocation',
             fields=[
@@ -59,34 +46,44 @@ class Migration(migrations.Migration):
             ],
             options={
                 'abstract': False,
+                'unique_together': {('name', 'parent')},
             },
         ),
+        migrations.CreateModel(
+            name='StockItemTracking',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('date', models.DateTimeField(auto_now_add=True)),
+                ('title', models.CharField(max_length=250)),
+                ('notes', models.TextField(blank=True)),
+                ('system', models.BooleanField(default=False)),
+                ('quantity', models.PositiveIntegerField(default=1, validators=[django.core.validators.MinValueValidator(0)])),
+                ('item', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='tracking_info', to='stock.StockItem')),
+                ('user', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
         migrations.AddField(
             model_name='stockitem',
             name='location',
-            field=models.ForeignKey(blank=True, help_text='Where is this stock item located?', null=True, on_delete=django.db.models.deletion.DO_NOTHING, related_name='items', to='stock.StockLocation'),
+            field=models.ForeignKey(blank=True, help_text='Where is this stock item located?', null=True, on_delete=django.db.models.deletion.DO_NOTHING, related_name='stock_items', to='stock.StockLocation'),
         ),
         migrations.AddField(
             model_name='stockitem',
             name='part',
-            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='locations', to='part.Part'),
+            field=models.ForeignKey(help_text='Base part', on_delete=django.db.models.deletion.CASCADE, related_name='locations', to='part.Part'),
         ),
         migrations.AddField(
             model_name='stockitem',
             name='stocktake_user',
-            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to=settings.AUTH_USER_MODEL),
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='stocktake_stock', to=settings.AUTH_USER_MODEL),
         ),
         migrations.AddField(
             model_name='stockitem',
             name='supplier_part',
-            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='part.SupplierPart'),
+            field=models.ForeignKey(blank=True, help_text='Select a matching supplier part for this stock item', null=True, on_delete=django.db.models.deletion.SET_NULL, to='company.SupplierPart'),
-        ),
-        migrations.AlterUniqueTogether(
-            name='stocklocation',
-            unique_together=set([('name', 'parent')]),
         ),
         migrations.AlterUniqueTogether(
             name='stockitem',
-            unique_together=set([('part', 'serial')]),
+            unique_together={('part', 'serial')},
         ),
     ]

InvenTree/stock/migrations/0002_auto_20180430_1218.py

@@ -1,21 +0,0 @@
-# -*- coding: utf-8 -*-
-# Generated by Django 1.11.12 on 2018-04-30 12:18
-from __future__ import unicode_literals
-
-import django.core.validators
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0001_initial'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='stockitem',
-            name='quantity',
-            field=models.PositiveIntegerField(default=1, validators=[django.core.validators.MinValueValidator(0)]),
-        ),
-    ]

InvenTree/stock/migrations/0003_auto_20180510_1042.py

@@ -1,20 +0,0 @@
-# -*- coding: utf-8 -*-
-# Generated by Django 1.11.12 on 2018-05-10 10:42
-from __future__ import unicode_literals
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0002_auto_20180430_1218'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='stockitemtracking',
-            name='date',
-            field=models.DateTimeField(auto_now_add=True),
-        ),
-    ]

InvenTree/stock/migrations/0004_auto_20190412_2030.py

@@ -1,19 +0,0 @@
-# Generated by Django 2.2 on 2019-04-12 10:30
-
-import django.core.validators
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0003_auto_20180510_1042'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='stockitem',
-            name='status',
-            field=models.PositiveIntegerField(choices=[(10, 'OK'), (50, 'Attention needed'), (55, 'Damaged'), (60, 'Destroyed')], default=10, validators=[django.core.validators.MinValueValidator(0)]),
-        ),
-    ]

InvenTree/stock/migrations/0005_stockitemtracking_quantity.py

@@ -1,19 +0,0 @@
-# Generated by Django 2.2 on 2019-04-12 14:09
-
-import django.core.validators
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0004_auto_20190412_2030'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='stockitemtracking',
-            name='quantity',
-            field=models.PositiveIntegerField(default=1, validators=[django.core.validators.MinValueValidator(0)]),
-        ),
-    ]

InvenTree/stock/migrations/0006_stockitem_uuid.py

@@ -1,19 +0,0 @@
-# Generated by Django 2.2 on 2019-04-12 15:06
-
-from django.db import migrations, models
-import uuid
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0005_stockitemtracking_quantity'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='stockitem',
-            name='uuid',
-            field=models.UUIDField(blank=True, default=uuid.uuid4, editable=False),
-        ),
-    ]

InvenTree/stock/migrations/0007_auto_20190417_1812.py

@@ -1,18 +0,0 @@
-# Generated by Django 2.2 on 2019-04-17 08:12
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0006_stockitem_uuid'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='stockitem',
-            name='notes',
-            field=models.CharField(blank=True, help_text='Stock Item Notes', max_length=250),
-        ),
-    ]

InvenTree/stock/migrations/0008_auto_20190417_1819.py

@@ -1,20 +0,0 @@
-# Generated by Django 2.2 on 2019-04-17 08:19
-
-from django.conf import settings
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0007_auto_20190417_1812'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='stockitem',
-            name='stocktake_user',
-            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='stocktake_stock', to=settings.AUTH_USER_MODEL),
-        ),
-    ]

InvenTree/stock/migrations/0009_auto_20190428_0841.py

@@ -1,19 +0,0 @@
-# Generated by Django 2.2 on 2019-04-27 22:41
-
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0008_auto_20190417_1819'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='stockitem',
-            name='location',
-            field=models.ForeignKey(blank=True, help_text='Where is this stock item located?', null=True, on_delete=django.db.models.deletion.DO_NOTHING, related_name='stock_items', to='stock.StockLocation'),
-        ),
-    ]

InvenTree/stock/migrations/0010_auto_20190501_2344.py

@@ -1,18 +0,0 @@
-# Generated by Django 2.2 on 2019-05-01 13:44
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0009_auto_20190428_0841'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='stockitem',
-            name='batch',
-            field=models.CharField(blank=True, help_text='Batch code for this stock item', max_length=100, null=True),
-        ),
-    ]

InvenTree/stock/migrations/0011_auto_20190502_0041.py

@@ -1,19 +0,0 @@
-# Generated by Django 2.2 on 2019-05-01 14:41
-
-from django.db import migrations, models
-import uuid
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0010_auto_20190501_2344'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='stockitem',
-            name='uuid',
-            field=models.UUIDField(blank=True, default=uuid.uuid4, editable=False, help_text='Unique ID for the StockItem'),
-        ),
-    ]

InvenTree/stock/migrations/0012_auto_20190502_0058.py

@@ -1,19 +0,0 @@
-# Generated by Django 2.2 on 2019-05-01 14:58
-
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0011_auto_20190502_0041'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='stockitem',
-            name='part',
-            field=models.ForeignKey(help_text='Base part', on_delete=django.db.models.deletion.CASCADE, related_name='locations', to='part.Part'),
-        ),
-    ]

InvenTree/stock/migrations/0013_remove_stockitem_uuid.py

@@ -1,17 +0,0 @@
-# Generated by Django 2.2 on 2019-05-02 10:39
-
-from django.db import migrations
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0012_auto_20190502_0058'),
-    ]
-
-    operations = [
-        migrations.RemoveField(
-            model_name='stockitem',
-            name='uuid',
-        ),
-    ]

InvenTree/stock/migrations/0014_auto_20190508_2332.py

@@ -1,19 +0,0 @@
-# Generated by Django 2.2 on 2019-05-08 13:32
-
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0013_remove_stockitem_uuid'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='stockitem',
-            name='supplier_part',
-            field=models.ForeignKey(blank=True, help_text='Select a matching supplier part for this stock item', null=True, on_delete=django.db.models.deletion.SET_NULL, to='part.SupplierPart'),
-        ),
-    ]

InvenTree/stock/migrations/0015_stockitem_delete_on_deplete.py

@@ -1,18 +0,0 @@
-# Generated by Django 2.2 on 2019-05-09 12:59
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0014_auto_20190508_2332'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='stockitem',
-            name='delete_on_deplete',
-            field=models.BooleanField(default=True, help_text='Delete this Stock Item when stock is depleted'),
-        ),
-    ]

InvenTree/stock/migrations/0016_auto_20190512_2119.py

@@ -1,18 +0,0 @@
-# Generated by Django 2.2 on 2019-05-12 11:19
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('stock', '0015_stockitem_delete_on_deplete'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='stockitem',
-            name='updated',
-            field=models.DateField(auto_now=True, null=True),
-        ),
-    ]

InvenTree/stock/models.py

@@ -188,7 +188,7 @@ class StockItem(models.Model):
 
     part = models.ForeignKey('part.Part', on_delete=models.CASCADE, related_name='locations', help_text='Base part')
 
-    supplier_part = models.ForeignKey('part.SupplierPart', blank=True, null=True, on_delete=models.SET_NULL,
+    supplier_part = models.ForeignKey('company.SupplierPart', blank=True, null=True, on_delete=models.SET_NULL,
                                       help_text='Select a matching supplier part for this stock item')
 
     location = models.ForeignKey(StockLocation, on_delete=models.DO_NOTHING,