Merge remote-tracking branch 'inventree/master'

InvenTree/InvenTree/forms.py

@@ -5,6 +5,7 @@ Helper forms which subclass Django forms to provide additional functionality
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
+from django.utils.translation import ugettext as _
 from django import forms
 from crispy_forms.helper import FormHelper
 from crispy_forms.layout import Layout, Field
@@ -92,6 +93,20 @@ class HelperForm(forms.ModelForm):
         self.helper.layout = Layout(*layouts)
 
 
+class ConfirmForm(forms.Form):
+    """ Generic confirmation form """
+
+    confirm = forms.BooleanField(
+        required=False, initial=False,
+        help_text=_("Confirm")
+    )
+
+    class Meta:
+        fields = [
+            'confirm'
+        ]
+
+
 class DeleteForm(forms.Form):
     """ Generic deletion form which provides simple user confirmation
     """
@@ -99,7 +114,7 @@ class DeleteForm(forms.Form):
     confirm_delete = forms.BooleanField(
         required=False,
         initial=False,
-        help_text='Confirm item deletion'
+        help_text=_('Confirm item deletion')
     )
 
     class Meta:
@@ -131,14 +146,14 @@ class SetPasswordForm(HelperForm):
                                      required=True,
                                      initial='',
                                      widget=forms.PasswordInput(attrs={'autocomplete': 'off'}),
-                                     help_text='Enter new password')
+                                     help_text=_('Enter new password'))
 
     confirm_password = forms.CharField(max_length=100,
                                        min_length=8,
                                        required=True,
                                        initial='',
                                        widget=forms.PasswordInput(attrs={'autocomplete': 'off'}),
-                                       help_text='Confirm new password')
+                                       help_text=_('Confirm new password'))
 
     class Meta:
         model = User

InvenTree/InvenTree/settings.py

@@ -72,6 +72,27 @@ if DEBUG:
         format='%(asctime)s %(levelname)s %(message)s',
     )
 
+# Web URL endpoint for served static files
+STATIC_URL = '/static/'
+
+# The filesystem location for served static files
+STATIC_ROOT = os.path.abspath(CONFIG.get('static_root', os.path.join(BASE_DIR, 'static')))
+
+STATICFILES_DIRS = [
+    os.path.join(BASE_DIR, 'InvenTree', 'static'),
+]
+
+# Web URL endpoint for served media files
+MEDIA_URL = '/media/'
+
+# The filesystem location for served static files
+MEDIA_ROOT = os.path.abspath(CONFIG.get('media_root', os.path.join(BASE_DIR, 'media')))
+
+if DEBUG:
+    print("InvenTree running in DEBUG mode")
+    print("MEDIA_ROOT:", MEDIA_ROOT)
+    print("STATIC_ROOT:", STATIC_ROOT)
+
 # Does the user wish to use the sentry.io integration?
 sentry_opts = CONFIG.get('sentry', {})
 
@@ -106,12 +127,13 @@ INSTALLED_APPS = [
     'django.contrib.staticfiles',
 
     # InvenTree apps
-    'common.apps.CommonConfig',
-    'part.apps.PartConfig',
-    'stock.apps.StockConfig',
-    'company.apps.CompanyConfig',
     'build.apps.BuildConfig',
+    'common.apps.CommonConfig',
+    'company.apps.CompanyConfig',
     'order.apps.OrderConfig',
+    'part.apps.PartConfig',
+    'report.apps.ReportConfig',
+    'stock.apps.StockConfig',
 
     # Third part add-ons
     'django_filters',               # Extended filter functionality
@@ -126,6 +148,7 @@ INSTALLED_APPS = [
     'mptt',                         # Modified Preorder Tree Traversal
     'markdownx',                    # Markdown editing
     'markdownify',                  # Markdown template rendering
+    'django_tex',                   # LaTeX output
 ]
 
 LOGGING = {
@@ -160,7 +183,11 @@ ROOT_URLCONF = 'InvenTree.urls'
 TEMPLATES = [
     {
         'BACKEND': 'django.template.backends.django.DjangoTemplates',
-        'DIRS': [os.path.join(BASE_DIR, 'templates')],
+        'DIRS': [
+            os.path.join(BASE_DIR, 'templates'),
+            # Allow templates in the reporting directory to be accessed
+            os.path.join(MEDIA_ROOT, 'report'),
+        ],
         'APP_DIRS': True,
         'OPTIONS': {
             'context_processors': [
@@ -173,6 +200,14 @@ TEMPLATES = [
             ],
         },
     },
+    # Backend for LaTeX report rendering
+    {
+        'NAME': 'tex',
+        'BACKEND': 'django_tex.engine.TeXEngine',
+        'DIRS': [
+            os.path.join(MEDIA_ROOT, 'report'),
+        ]
+    },
 ]
 
 REST_FRAMEWORK = {
@@ -315,31 +350,22 @@ DATE_INPUT_FORMATS = [
     "%Y-%m-%d",
 ]
 
+# LaTeX rendering settings (django-tex)
+LATEX_SETTINGS = CONFIG.get('latex', {})
 
-# Static files (CSS, JavaScript, Images)
+# Is LaTeX rendering enabled? (Off by default)
-# https://docs.djangoproject.com/en/1.10/howto/static-files/
+LATEX_ENABLED = LATEX_SETTINGS.get('enabled', False)
 
-# Web URL endpoint for served static files
+# Set the latex interpreter in the config.yaml settings file
-STATIC_URL = '/static/'
+LATEX_INTERPRETER = LATEX_SETTINGS.get('interpreter', 'pdflatex')
 
-# The filesystem location for served static files
+LATEX_INTERPRETER_OPTIONS = LATEX_SETTINGS.get('options', '')
-STATIC_ROOT = os.path.abspath(CONFIG.get('static_root', os.path.join(BASE_DIR, 'static')))
 
-STATICFILES_DIRS = [
+LATEX_GRAPHICSPATH = [
-    os.path.join(BASE_DIR, 'InvenTree', 'static'),
+    # Allow LaTeX files to access the report assets directory
+    os.path.join(MEDIA_ROOT, "report", "assets"),
 ]
 
-# Web URL endpoint for served media files
-MEDIA_URL = '/media/'
-
-# The filesystem location for served static files
-MEDIA_ROOT = os.path.abspath(CONFIG.get('media_root', os.path.join(BASE_DIR, 'media')))
-
-if DEBUG:
-    print("InvenTree running in DEBUG mode")
-    print("MEDIA_ROOT:", MEDIA_ROOT)
-    print("STATIC_ROOT:", STATIC_ROOT)
-
 # crispy forms use the bootstrap templates
 CRISPY_TEMPLATE_PACK = 'bootstrap3'
 

InvenTree/InvenTree/static/script/inventree/filters.js

@@ -272,8 +272,9 @@ function setupFilterList(tableKey, table, target) {
     for (var key in filters) {
         var value = getFilterOptionValue(tableKey, key, filters[key]);
         var title = getFilterTitle(tableKey, key);
+        var description = getFilterDescription(tableKey, key);
         
-        element.append(`<div class='filter-tag'>${title} = ${value}<span ${tag}='${key}' class='close'>x</span></div>`);
+        element.append(`<div title='${description}' class='filter-tag'>${title} = ${value}<span ${tag}='${key}' class='close'>x</span></div>`);
     }
 
     // Add a callback for adding a new filter
@@ -362,6 +363,15 @@ function getFilterTitle(tableKey, filterKey) {
 }
 
 
+/**
+ * Return the pretty description for the given table and filter selection
+ */
+function getFilterDescription(tableKey, filterKey) {
+    var settings = getFilterSettings(tableKey, filterKey);
+
+    return settings.title;
+}
+
 /*
  * Return a description for the given table and filter selection.
  */

InvenTree/InvenTree/views.py

@@ -166,6 +166,13 @@ class AjaxMixin(object):
             except AttributeError:
                 context = {}
 
+        # If no 'form' argument is supplied, look at the underlying class
+        if form is None:
+            try:
+                form = self.get_form()
+            except AttributeError:
+                pass
+
         if form:
             context['form'] = form
         else:

InvenTree/config_template.yaml

@@ -73,3 +73,16 @@ log_queries: False
 sentry:
   enabled: False
   # dsn: add-your-sentry-dsn-here
+
+# LaTeX report rendering
+# InvenTree uses the django-tex plugin to enable LaTeX report rendering
+# Ref: https://pypi.org/project/django-tex/
+# Note: Ensure that a working LaTeX toolchain is installed and working *before* starting the server
+latex:
+  # Select the LaTeX interpreter to use for PDF rendering
+  # Note: The intepreter needs to be installed on the system!
+  # e.g. to install pdflatex: apt-get texlive-latex-base
+  enabled: False
+  interpreter: pdflatex 
+  # Extra options to pass through to the LaTeX interpreter
+  options: ''

InvenTree/part/forms.py

@@ -39,7 +39,10 @@ class EditPartTestTemplateForm(HelperForm):
         fields = [
             'part',
             'test_name',
-            'required'
+            'description',
+            'required',
+            'requires_value',
+            'requires_attachment',
         ]
 
 

InvenTree/part/migrations/0042_auto_20200518_0900.py

@@ -0,0 +1,33 @@
+# Generated by Django 3.0.5 on 2020-05-18 09:00
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('part', '0041_auto_20200517_0348'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='parttesttemplate',
+            name='description',
+            field=models.CharField(help_text='Enter description for this test', max_length=100, null=True, verbose_name='Test Description'),
+        ),
+        migrations.AddField(
+            model_name='parttesttemplate',
+            name='requires_attachment',
+            field=models.BooleanField(default=False, help_text='Does this test require a file attachment when adding a test result?', verbose_name='Requires Attachment'),
+        ),
+        migrations.AddField(
+            model_name='parttesttemplate',
+            name='requires_value',
+            field=models.BooleanField(default=False, help_text='Does this test require a value when adding a test result?', verbose_name='Requires Value'),
+        ),
+        migrations.AlterField(
+            model_name='parttesttemplate',
+            name='test_name',
+            field=models.CharField(help_text='Enter a name for the test', max_length=100, verbose_name='Test Name'),
+        ),
+    ]

InvenTree/part/models.py

@@ -41,6 +41,7 @@ from InvenTree.helpers import decimal2string, normalize
 
 from InvenTree.status_codes import BuildStatus, PurchaseOrderStatus
 
+from report import models as ReportModels
 from build import models as BuildModels
 from order import models as OrderModels
 from company.models import SupplierPart
@@ -358,6 +359,24 @@ class Part(MPTTModel):
         self.category = category
         self.save()
 
+    def get_test_report_templates(self):
+        """
+        Return all the TestReport template objects which map to this Part.
+        """
+
+        templates = []
+
+        for report in ReportModels.TestReport.objects.all():
+            if report.matches_part(self):
+                templates.append(report)
+
+        return templates
+
+    def has_test_report_templates(self):
+        """ Return True if this part has a TestReport defined """
+
+        return len(self.get_test_report_templates()) > 0
+
     def get_absolute_url(self):
         """ Return the web URL for viewing this part """
         return reverse('part-detail', kwargs={'pk': self.id})
@@ -1014,6 +1033,9 @@ class Part(MPTTModel):
         # Return the tests which are required by this part
         return self.getTestTemplates(required=True)
 
+    def requiredTestCount(self):
+        return self.getRequiredTests().count()
+
     @property
     def attachment_count(self):
         """ Count the number of attachments for this part.
@@ -1087,6 +1109,17 @@ class Part(MPTTModel):
 
         return self.parameters.order_by('template__name')
 
+    @property
+    def has_variants(self):
+        """ Check if this Part object has variants underneath it. """
+
+        return self.get_all_variants().count() > 0
+
+    def get_all_variants(self):
+        """ Return all Part object which exist as a variant under this part. """
+
+        return self.get_descendants(include_self=False)
+
 
 def attach_file(instance, filename):
     """ Function for storing a file for a PartAttachment
@@ -1204,16 +1237,34 @@ class PartTestTemplate(models.Model):
 
     test_name = models.CharField(
         blank=False, max_length=100,
-        verbose_name=_("Test name"),
+        verbose_name=_("Test Name"),
         help_text=_("Enter a name for the test")
     )
 
+    description = models.CharField(
+        blank=False, null=True, max_length=100,
+        verbose_name=_("Test Description"),
+        help_text=_("Enter description for this test")
+    )
+
     required = models.BooleanField(
         default=True,
         verbose_name=_("Required"),
         help_text=_("Is this test required to pass?")
     )
 
+    requires_value = models.BooleanField(
+        default=False,
+        verbose_name=_("Requires Value"),
+        help_text=_("Does this test require a value when adding a test result?")
+    )
+
+    requires_attachment = models.BooleanField(
+        default=False,
+        verbose_name=_("Requires Attachment"),
+        help_text=_("Does this test require a file attachment when adding a test result?")
+    )
+
 
 class PartParameterTemplate(models.Model):
     """
@@ -1299,6 +1350,11 @@ class BomItem(models.Model):
         checksum: Validation checksum for the particular BOM line item
     """
 
+    def save(self, *args, **kwargs):
+
+        self.clean()
+        super().save(*args, **kwargs)
+
     def get_absolute_url(self):
         return reverse('bom-item-detail', kwargs={'pk': self.id})
 
@@ -1391,6 +1447,16 @@ class BomItem(models.Model):
         - A part cannot refer to a part which refers to it
         """
 
+        # If the sub_part is 'trackable' then the 'quantity' field must be an integer
+        try:
+            if self.sub_part.trackable:
+                if not self.quantity == int(self.quantity):
+                    raise ValidationError({
+                        "quantity": _("Quantity must be integer value for trackable parts")
+                    })
+        except Part.DoesNotExist:
+            pass
+
         # A part cannot refer to itself in its BOM
         try:
             if self.sub_part is not None and self.part is not None:

InvenTree/part/serializers.py

@@ -62,14 +62,20 @@ class PartTestTemplateSerializer(InvenTreeModelSerializer):
     Serializer for the PartTestTemplate class
     """
 
+    key = serializers.CharField(read_only=True)
+
     class Meta:
         model = PartTestTemplate
 
         fields = [
             'pk',
+            'key',
             'part',
             'test_name',
-            'required'
+            'description',
+            'required',
+            'requires_value',
+            'requires_attachment',
         ]
 
 
@@ -99,9 +105,11 @@ class PartBriefSerializer(InvenTreeModelSerializer):
             'thumbnail',
             'active',
             'assembly',
+            'is_template',
             'purchaseable',
             'salable',
             'stock',
+            'trackable',
             'virtual',
         ]
 

InvenTree/part/templates/part/detail.html

@@ -33,6 +33,13 @@
             <td>{{ part.revision }}</td>
         </tr>
         {% endif %}
+        {% if part.trackable %}
+        <tr>
+            <td><span class='fas fa-hashtag'></span></td>
+            <td><b>{% trans "Next Serial Number" %}</b></td>
+            <td>{{ part.getNextSerialNumber }}</td>
+        </tr>
+        {% endif %}
         <tr>
             <td><span class='fas fa-info-circle'></span></td>
             <td><b>{% trans "Description" %}</b></td>

InvenTree/part/templates/part/part_base.html

@@ -6,11 +6,14 @@
 
 {% block content %}
 
+{% if part.virtual %}
+<div class='alert alert-info alert-block'>
+    {% trans "This part is a virtual part" %}
+</div>
+{% endif %}
 {% if part.is_template %}
 <div class='alert alert-info alert-block'>
     {% trans "This part is a template part." %}
-    <br>
-    {% trans "It is not a real part, but real parts can be based on this template." %}
 </div>
 {% endif %}
 {% if part.variant_of %}

InvenTree/part/templates/part/tabs.html

@@ -13,9 +13,11 @@
         <a href="{% url 'part-variants' part.id %}">{% trans "Variants" %} <span class='badge'>{{ part.variants.count }}</span></span></a>
     </li>
     {% endif %}
+    {% if not part.virtual %}
     <li{% ifequal tab 'stock' %} class="active"{% endifequal %}>
         <a href="{% url 'part-stock' part.id %}">{% trans "Stock" %} <span class="badge">{% decimal part.total_stock %}</span></a>
     </li>
+    {% endif %}
     {% if part.component or part.used_in_count > 0 %}
     <li{% ifequal tab 'allocation' %} class="active"{% endifequal %}>
         <a href="{% url 'part-allocation' part.id %}">{% trans "Allocated" %} <span class="badge">{% decimal part.allocation_count %}</span></a>

InvenTree/part/test_bom_item.py

@@ -44,6 +44,20 @@ class BomItemTest(TestCase):
             item = BomItem.objects.create(part=self.bob, sub_part=self.bob, quantity=7)
             item.clean()
 
+    def test_integer_quantity(self):
+        """
+        Test integer validation for BomItem
+        """
+
+        p = Part.objects.create(name="test", description="d", component=True, trackable=True)
+
+        # Creation of a BOMItem with a non-integer quantity of a trackable Part should fail
+        with self.assertRaises(django_exceptions.ValidationError):
+            BomItem.objects.create(part=self.bob, sub_part=p, quantity=21.7)
+
+        # But with an integer quantity, should be fine
+        BomItem.objects.create(part=self.bob, sub_part=p, quantity=21)
+
     def test_overage(self):
         """ Test that BOM line overages are calculated correctly """
 

InvenTree/report/admin.py

@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.contrib import admin
+
+from .models import ReportTemplate, ReportAsset
+from .models import TestReport
+
+
+class ReportTemplateAdmin(admin.ModelAdmin):
+
+    list_display = ('name', 'description', 'template')
+
+
+class ReportAssetAdmin(admin.ModelAdmin):
+
+    list_display = ('asset', 'description')
+
+
+admin.site.register(ReportTemplate, ReportTemplateAdmin)
+admin.site.register(TestReport, ReportTemplateAdmin)
+admin.site.register(ReportAsset, ReportAssetAdmin)

InvenTree/report/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class ReportConfig(AppConfig):
+    name = 'report'

InvenTree/report/migrations/0001_initial.py

@@ -0,0 +1,49 @@
+# Generated by Django 3.0.5 on 2020-05-22 11:00
+
+import django.core.validators
+from django.db import migrations, models
+import report.models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='ReportAsset',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('asset', models.FileField(help_text='Report asset file', upload_to=report.models.rename_asset)),
+                ('description', models.CharField(help_text='Asset file description', max_length=250)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='ReportTemplate',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(help_text='Template name', max_length=100, unique=True)),
+                ('template', models.FileField(help_text='Report template file', upload_to=report.models.rename_template, validators=[django.core.validators.FileExtensionValidator(allowed_extensions=['html', 'htm', 'tex'])])),
+                ('description', models.CharField(help_text='Report template description', max_length=250)),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+        migrations.CreateModel(
+            name='TestReport',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(help_text='Template name', max_length=100, unique=True)),
+                ('template', models.FileField(help_text='Report template file', upload_to=report.models.rename_template, validators=[django.core.validators.FileExtensionValidator(allowed_extensions=['html', 'htm', 'tex'])])),
+                ('description', models.CharField(help_text='Report template description', max_length=250)),
+                ('part_filters', models.CharField(blank=True, help_text='Part query filters (comma-separated list of key=value pairs)', max_length=250, validators=[report.models.validateFilterString])),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+    ]

InvenTree/report/models.py

@@ -0,0 +1,269 @@
+"""
+Report template model definitions
+"""
+
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+import os
+import sys
+
+from django.db import models
+from django.conf import settings
+
+from django.core.validators import FileExtensionValidator
+from django.core.exceptions import ValidationError
+
+from django.utils.translation import gettext_lazy as _
+
+from part import models as PartModels
+
+try:
+    from django_weasyprint import WeasyTemplateResponseMixin
+except OSError as err:
+    print("OSError: {e}".format(e=err))
+    print("You may require some further system packages to be installed.")
+    sys.exit(1)
+
+# Conditional import if LaTeX templating is enabled
+if settings.LATEX_ENABLED:
+    try:
+        from django_tex.shortcuts import render_to_pdf
+    except OSError as err:
+        print("OSError: {e}".format(e=err))
+        print("You may not have a working LaTeX toolchain installed?")
+        sys.exit(1)
+
+
+def rename_template(instance, filename):
+
+    filename = os.path.basename(filename)
+
+    return os.path.join('report', 'report_template', instance.getSubdir(), filename)
+
+
+def validateFilterString(value):
+    """
+    Validate that a provided filter string looks like a list of comma-separated key=value pairs
+
+    These should nominally match to a valid database filter based on the model being filtered.
+
+    e.g. "category=6, IPN=12"
+    e.g. "part__name=widget"
+
+    The ReportTemplate class uses the filter string to work out which items a given report applies to.
+    For example, an acceptance test report template might only apply to stock items with a given IPN,
+    so the string could be set to:
+
+    filters = "IPN = ACME0001"
+
+    Returns a map of key:value pairs
+    """
+
+    # Empty results map
+    results = {}
+
+    value = str(value).strip()
+
+    if not value or len(value) == 0:
+        return results
+
+    groups = value.split(',')
+
+    for group in groups:
+        group = group.strip()
+
+        pair = group.split('=')
+
+        if not len(pair) == 2:
+            raise ValidationError(
+                "Invalid group: {g}".format(g=group)
+            )
+
+        k, v = pair
+
+        k = k.strip()
+        v = v.strip()
+
+        if not k or not v:
+            raise ValidationError(
+                "Invalid group: {g}".format(g=group)
+            )
+
+        results[k] = v
+
+    return results
+
+
+class WeasyprintReportMixin(WeasyTemplateResponseMixin):
+    """
+    Class for rendering a HTML template to a PDF.
+    """
+
+    pdf_filename = 'report.pdf'
+    pdf_attachment = True
+
+    def __init__(self, request, template, **kwargs):
+
+        self.request = request
+        self.template_name = template
+        self.pdf_filename = kwargs.get('filename', 'report.pdf')
+
+
+class ReportTemplateBase(models.Model):
+    """
+    Reporting template model.
+    """
+
+    def __str__(self):
+        return "{n} - {d}".format(n=self.name, d=self.description)
+
+    def getSubdir(self):
+        return ''
+
+    @property
+    def extension(self):
+        return os.path.splitext(self.template.name)[1].lower()
+
+    @property
+    def template_name(self):
+        return os.path.join('report_template', self.getSubdir(), os.path.basename(self.template.name))
+
+    def get_context_data(self, request):
+        """
+        Supply context data to the template for rendering
+        """
+
+        return {}
+
+    def render(self, request, **kwargs):
+        """
+        Render the template to a PDF file.
+
+        Supported template formats:
+            .tex - Uses django-tex plugin to render LaTeX template against an installed LaTeX engine
+            .html - Uses django-weasyprint plugin to render HTML template against Weasyprint
+        """
+
+        filename = kwargs.get('filename', 'report.pdf')
+
+        context = self.get_context_data(request)
+
+        context['request'] = request
+
+        if self.extension == '.tex':
+            # Render LaTeX template to PDF
+            if settings.LATEX_ENABLED:
+                return render_to_pdf(request, self.template_name, context, filename=filename)
+            else:
+                return ValidationError("Enable LaTeX support in config.yaml")
+        elif self.extension in ['.htm', '.html']:
+            # Render HTML template to PDF
+            wp = WeasyprintReportMixin(request, self.template_name, **kwargs)
+            return wp.render_to_response(context, **kwargs)
+
+    name = models.CharField(
+        blank=False, max_length=100,
+        help_text=_('Template name'),
+        unique=True,
+    )
+
+    template = models.FileField(
+        upload_to=rename_template,
+        help_text=_("Report template file"),
+        validators=[FileExtensionValidator(allowed_extensions=['html', 'htm', 'tex'])],
+    )
+
+    description = models.CharField(max_length=250, help_text=_("Report template description"))
+
+    class Meta:
+        abstract = True
+
+
+class ReportTemplate(ReportTemplateBase):
+    """
+    A simple reporting template which is used to upload template files,
+    which can then be used in other concrete template classes.
+    """
+
+    pass
+
+
+class PartFilterMixin(models.Model):
+    """
+    A model mixin used for matching a report type against a Part object.
+    Used to assign a report to a given part using custom filters.
+    """
+
+    class Meta:
+        abstract = True
+
+    def matches_part(self, part):
+        """
+        Test if this report matches a given part.
+        """
+
+        filters = self.get_part_filters()
+
+        parts = PartModels.Part.objects.filter(**filters)
+
+        parts = parts.filter(pk=part.pk)
+
+        return parts.exists()
+
+    def get_part_filters(self):
+        """ Return a map of filters to be used for Part filtering """
+        return validateFilterString(self.part_filters)
+
+    part_filters = models.CharField(
+        blank=True,
+        max_length=250,
+        help_text=_("Part query filters (comma-separated list of key=value pairs)"),
+        validators=[validateFilterString]
+    )
+
+
+class TestReport(ReportTemplateBase, PartFilterMixin):
+    """
+    Render a TestReport against a StockItem object.
+    """
+
+    def getSubdir(self):
+        return 'test'
+
+    # Requires a stock_item object to be given to it before rendering
+    stock_item = None
+
+    def get_context_data(self, request):
+        return {
+            'stock_item': self.stock_item,
+            'part': self.stock_item.part,
+            'results': self.stock_item.testResultMap(),
+            'result_list': self.stock_item.testResultList()
+        }
+
+
+def rename_asset(instance, filename):
+
+    filename = os.path.basename(filename)
+
+    return os.path.join('report', 'assets', filename)
+
+
+class ReportAsset(models.Model):
+    """
+    Asset file for use in report templates.
+    For example, an image to use in a header file.
+    Uploaded asset files appear in MEDIA_ROOT/report/assets,
+    and can be loaded in a template using the {% report_asset <filename> %} tag.
+    """
+
+    def __str__(self):
+        return os.path.basename(self.asset.name)
+
+    asset = models.FileField(
+        upload_to=rename_asset,
+        help_text=_("Report asset file"),
+    )
+
+    description = models.CharField(max_length=250, help_text=_("Asset file description"))

InvenTree/report/tests.py

@@ -0,0 +1,2 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals

InvenTree/report/views.py

@@ -0,0 +1,2 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals

InvenTree/stock/api.py

@@ -80,21 +80,10 @@ class StockDetail(generics.RetrieveUpdateDestroyAPIView):
 
     def get_serializer(self, *args, **kwargs):
 
-        try:
+        kwargs['part_detail'] = True
-            kwargs['part_detail'] = str2bool(self.request.query_params.get('part_detail', False))
+        kwargs['location_detail'] = True
-        except AttributeError:
+        kwargs['supplier_part_detail'] = True
-            pass
+        kwargs['test_detail'] = True
-
-        try:
-            kwargs['location_detail'] = str2bool(self.request.query_params.get('location_detail', False))
-        except AttributeError:
-            pass
-
-        try:
-            kwargs['supplier_part_detail'] = str2bool(self.request.query_params.get('supplier_detail', False))
-        except AttributeError:
-            pass
-
         kwargs['context'] = self.get_serializer_context()
 
         return self.serializer_class(*args, **kwargs)
@@ -499,7 +488,20 @@ class StockList(generics.ListCreateAPIView):
         if serial_number is not None:
             queryset = queryset.filter(serial=serial_number)
 
-        in_stock = self.request.query_params.get('in_stock', None)
+        # Filter by range of serial numbers?
+        serial_number_gte = params.get('serial_gte', None)
+        serial_number_lte = params.get('serial_lte', None)
+
+        if serial_number_gte is not None or serial_number_lte is not None:
+            queryset = queryset.exclude(serial=None)
+
+        if serial_number_gte is not None:
+            queryset = queryset.filter(serial__gte=serial_number_gte)
+        
+        if serial_number_lte is not None:
+            queryset = queryset.filter(serial__lte=serial_number_lte)
+
+        in_stock = params.get('in_stock', None)
 
         if in_stock is not None:
             in_stock = str2bool(in_stock)
@@ -512,7 +514,7 @@ class StockList(generics.ListCreateAPIView):
                 queryset = queryset.exclude(StockItem.IN_STOCK_FILTER)
 
         # Filter by 'allocated' patrs?
-        allocated = self.request.query_params.get('allocated', None)
+        allocated = params.get('allocated', None)
 
         if allocated is not None:
             allocated = str2bool(allocated)
@@ -531,8 +533,14 @@ class StockList(generics.ListCreateAPIView):
             active = str2bool(active)
             queryset = queryset.filter(part__active=active)
 
+        # Filter by internal part number
+        IPN = params.get('IPN', None)
+
+        if IPN:
+            queryset = queryset.filter(part__IPN=IPN)
+
         # Does the client wish to filter by the Part ID?
-        part_id = self.request.query_params.get('part', None)
+        part_id = params.get('part', None)
 
         if part_id:
             try:
@@ -692,17 +700,14 @@ class StockItemTestResultList(generics.ListCreateAPIView):
         'value',
     ]
 
+    ordering = 'date'
+
     def get_serializer(self, *args, **kwargs):
         try:
             kwargs['user_detail'] = str2bool(self.request.query_params.get('user_detail', False))
         except:
             pass
 
-        try:
-            kwargs['attachment_detail'] = str2bool(self.request.query_params.get('attachment_detail', False))
-        except:
-            pass
-
         kwargs['context'] = self.get_serializer_context()
 
         return self.serializer_class(*args, **kwargs)
@@ -718,23 +723,6 @@ class StockItemTestResultList(generics.ListCreateAPIView):
         # Capture the user information
         test_result = serializer.save()
         test_result.user = self.request.user
-
-        # Check if a file has been attached to the request
-        attachment_file = self.request.FILES.get('attachment', None)
-
-        if attachment_file:
-            # Create a new attachment associated with the stock item
-            attachment = StockItemAttachment(
-                attachment=attachment_file,
-                stock_item=test_result.stock_item,
-                user=test_result.user
-            )
-
-            attachment.save()
-
-            # Link the attachment back to the test result
-            test_result.attachment = attachment
-
         test_result.save()
 
 

InvenTree/stock/forms.py

@@ -63,6 +63,18 @@ class EditStockLocationForm(HelperForm):
         ]
 
 
+class ConvertStockItemForm(HelperForm):
+    """
+    Form for converting a StockItem to a variant of its current part.
+    """
+
+    class Meta:
+        model = StockItem
+        fields = [
+            'part'
+        ]
+
+
 class CreateStockItemForm(HelperForm):
     """ Form for creating a new StockItem """
 
@@ -142,6 +154,34 @@ class SerializeStockForm(HelperForm):
         ]
 
 
+class TestReportFormatForm(HelperForm):
+    """ Form for selection a test report template """
+
+    class Meta:
+        model = StockItem
+        fields = [
+            'template',
+        ]
+
+    def __init__(self, stock_item, *args, **kwargs):
+        self.stock_item = stock_item
+
+        super().__init__(*args, **kwargs)
+        self.fields['template'].choices = self.get_template_choices()
+    
+    def get_template_choices(self):
+        """ Available choices """
+
+        choices = []
+
+        for report in self.stock_item.part.get_test_report_templates():
+            choices.append((report.pk, report))
+
+        return choices
+
+    template = forms.ChoiceField(label=_('Template'), help_text=_('Select test report template'))
+
+
 class ExportOptionsForm(HelperForm):
     """ Form for selecting stock export options """
 

InvenTree/stock/migrations/0042_auto_20200523_0121.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.0.5 on 2020-05-23 01:21
+
+from django.db import migrations, models
+import stock.models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('stock', '0041_stockitemtestresult_notes'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='stockitemtestresult',
+            name='attachment',
+            field=models.FileField(blank=True, help_text='Test result attachment', null=True, upload_to=stock.models.rename_stock_item_test_result_attachment, verbose_name='Attachment'),
+        ),
+    ]

InvenTree/stock/migrations/0043_auto_20200525_0420.py

@@ -0,0 +1,20 @@
+# Generated by Django 3.0.5 on 2020-05-25 04:20
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('part', '0042_auto_20200518_0900'),
+        ('stock', '0042_auto_20200523_0121'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='stockitem',
+            name='part',
+            field=models.ForeignKey(help_text='Base part', limit_choices_to={'active': True, 'virtual': False}, on_delete=django.db.models.deletion.CASCADE, related_name='stock_items', to='part.Part', verbose_name='Base Part'),
+        ),
+    ]

InvenTree/stock/models.py

@@ -331,7 +331,6 @@ class StockItem(MPTTModel):
         verbose_name=_('Base Part'),
         related_name='stock_items', help_text=_('Base part'),
         limit_choices_to={
-            'is_template': False,
             'active': True,
             'virtual': False
         })
@@ -647,6 +646,9 @@ class StockItem(MPTTModel):
             # Copy entire transaction history
             new_item.copyHistoryFrom(self)
 
+            # Copy test result history
+            new_item.copyTestResultsFrom(self)
+
             # Create a new stock tracking item
             new_item.addTransactionNote(_('Add serial number'), user, notes=notes)
 
@@ -655,7 +657,7 @@ class StockItem(MPTTModel):
 
     @transaction.atomic
     def copyHistoryFrom(self, other):
-        """ Copy stock history from another part """
+        """ Copy stock history from another StockItem """
 
         for item in other.tracking_info.all():
             
@@ -663,6 +665,17 @@ class StockItem(MPTTModel):
             item.pk = None
             item.save()
 
+    @transaction.atomic
+    def copyTestResultsFrom(self, other, filters={}):
+        """ Copy all test results from another StockItem """
+
+        for result in other.test_results.all().filter(**filters):
+
+            # Create a copy of the test result by nulling-out the pk
+            result.pk = None
+            result.stock_item = self
+            result.save()
+
     @transaction.atomic
     def splitStock(self, quantity, location, user):
         """ Split this stock item into two items, in the same location.
@@ -713,6 +726,9 @@ class StockItem(MPTTModel):
         # Copy the transaction history of this part into the new one
         new_stock.copyHistoryFrom(self)
 
+        # Copy the test results of this part to the new one
+        new_stock.copyTestResultsFrom(self)
+
         # Add a new tracking item for the new stock item
         new_stock.addTransactionNote(
             "Split from existing stock",
@@ -963,6 +979,13 @@ class StockItem(MPTTModel):
 
         return result_map
 
+    def testResultList(self, **kwargs):
+        """
+        Return a list of test-result objects for this StockItem
+        """
+
+        return self.testResultMap(**kwargs).values()
+
     def requiredTestStatus(self):
         """
         Return the status of the tests required for this StockItem.
@@ -1000,6 +1023,10 @@ class StockItem(MPTTModel):
             'failed': failed,
         }
 
+    @property
+    def required_test_count(self):
+        return self.part.getRequiredTests().count()
+
     def hasRequiredTests(self):
         return self.part.getRequiredTests().count() > 0
 
@@ -1083,6 +1110,11 @@ class StockItemTracking(models.Model):
     # file = models.FileField()
 
 
+def rename_stock_item_test_result_attachment(instance, filename):
+
+    return os.path.join('stock_files', str(instance.stock_item.pk), os.path.basename(filename))
+
+
 class StockItemTestResult(models.Model):
     """
     A StockItemTestResult records results of custom tests against individual StockItem objects.
@@ -1102,19 +1134,41 @@ class StockItemTestResult(models.Model):
         date: Date the test result was recorded
     """
 
+    def save(self, *args, **kwargs):
+
+        super().clean()
+        super().validate_unique()
+        super().save(*args, **kwargs)
+
     def clean(self):
 
         super().clean()
 
-        # If an attachment is linked to this result, the attachment must also point to the item
+        # If this test result corresponds to a template, check the requirements of the template
-        try:
+        key = self.key
-            if self.attachment:
+
-                if not self.attachment.stock_item == self.stock_item:
+        templates = self.stock_item.part.getTestTemplates()
+
+        for template in templates:
+            if key == template.key:
+                
+                if template.requires_value:
+                    if not self.value:
                         raise ValidationError({
-                        'attachment': _("Test result attachment must be linked to the same StockItem"),
+                            "value": _("Value must be provided for this test"),
                         })
-        except (StockItem.DoesNotExist, StockItemAttachment.DoesNotExist):
+
-            pass
+                if template.requires_attachment:
+                    if not self.attachment:
+                        raise ValidationError({
+                            "attachment": _("Attachment must be uploaded for this test"),
+                        })
+
+                break
+
+    @property
+    def key(self):
+        return helpers.generateTestKey(self.test)
 
     stock_item = models.ForeignKey(
         StockItem,
@@ -1140,10 +1194,9 @@ class StockItemTestResult(models.Model):
         help_text=_('Test output value')
     )
 
-    attachment = models.ForeignKey(
+    attachment = models.FileField(
-        StockItemAttachment,
+        null=True, blank=True,
-        on_delete=models.SET_NULL,
+        upload_to=rename_stock_item_test_result_attachment,
-        blank=True, null=True,
         verbose_name=_('Attachment'),
         help_text=_('Test result attachment'),
     )

InvenTree/stock/serializers.py

@@ -108,11 +108,14 @@ class StockItemSerializer(InvenTreeModelSerializer):
     quantity = serializers.FloatField()
     allocated = serializers.FloatField()
 
+    required_tests = serializers.IntegerField(source='required_test_count', read_only=True)
+
     def __init__(self, *args, **kwargs):
 
         part_detail = kwargs.pop('part_detail', False)
         location_detail = kwargs.pop('location_detail', False)
         supplier_part_detail = kwargs.pop('supplier_part_detail', False)
+        test_detail = kwargs.pop('test_detail', False)
 
         super(StockItemSerializer, self).__init__(*args, **kwargs)
 
@@ -125,6 +128,9 @@ class StockItemSerializer(InvenTreeModelSerializer):
         if supplier_part_detail is not True:
             self.fields.pop('supplier_part_detail')
 
+        if test_detail is not True:
+            self.fields.pop('required_tests')
+
     class Meta:
         model = StockItem
         fields = [
@@ -141,6 +147,7 @@ class StockItemSerializer(InvenTreeModelSerializer):
             'part_detail',
             'pk',
             'quantity',
+            'required_tests',
             'sales_order',
             'serial',
             'supplier_part',
@@ -222,31 +229,28 @@ class StockItemTestResultSerializer(InvenTreeModelSerializer):
     """ Serializer for the StockItemTestResult model """
 
     user_detail = UserSerializerBrief(source='user', read_only=True)
-    attachment_detail = StockItemAttachmentSerializer(source='attachment', read_only=True)
+
+    key = serializers.CharField(read_only=True)
 
     def __init__(self, *args, **kwargs):
         user_detail = kwargs.pop('user_detail', False)
-        attachment_detail = kwargs.pop('attachment_detail', False)
 
         super().__init__(*args, **kwargs)
 
         if user_detail is not True:
             self.fields.pop('user_detail')
 
-        if attachment_detail is not True:
-            self.fields.pop('attachment_detail')
-
     class Meta:
         model = StockItemTestResult
 
         fields = [
             'pk',
             'stock_item',
+            'key',
             'test',
             'result',
             'value',
             'attachment',
-            'attachment_detail',
             'notes',
             'user',
             'user_detail',
@@ -255,7 +259,6 @@ class StockItemTestResultSerializer(InvenTreeModelSerializer):
 
         read_only_fields = [
             'pk',
-            'attachment',
             'user',
             'date',
         ]

InvenTree/stock/templates/stock/item_base.html

@@ -93,8 +93,18 @@ InvenTree | {% trans "Stock Item" %} - {{ item }}
         <span class='fas fa-copy'/>
     </button>
     {% endif %}
+    {% if item.part.has_variants %}
+    <button type='button' class='btn btn-default' id='stock-convert' title="Convert stock to variant">
+        <span class='fas fa-screwdriver'/>
+    </button>
+    {% endif %}
+    {% if item.part.has_test_report_templates %}
+    <button type='button' class='btn btn-default' id='stock-test-report' title='Generate test report'>
+        <span class='fas fa-tasks'/>
+    </button>
+    {% endif %}
     <button type='button' class='btn btn-default' id='stock-edit' title='Edit stock item'>
-        <span class='fas fa-edit'/>
+        <span class='fas fa-edit icon-blue'/>
     </button>
     {% if item.can_delete %}
     <button type='button' class='btn btn-default' id='stock-delete' title='Edit stock item'>
@@ -264,6 +274,17 @@ $("#stock-serialize").click(function() {
     );
 });
 
+{% if item.part.has_test_report_templates %}
+$("#stock-test-report").click(function() {
+    launchModalForm(
+        "{% url 'stock-item-test-report-select' item.id %}",
+        {
+            follow: true,
+        }
+    );
+});
+{% endif %}
+
 $("#stock-duplicate").click(function() {
     launchModalForm(
         "{% url 'stock-item-create' %}",
@@ -308,6 +329,16 @@ function itemAdjust(action) {
     );
 }
 
+{% if item.part.has_variants %}
+$("#stock-convert").click(function() {
+    launchModalForm("{% url 'stock-item-convert' item.id %}",
+        {
+            reload: true,
+        }
+    );
+});
+{% endif %}
+
 $("#stock-move").click(function() {
     itemAdjust("move");
 });

InvenTree/stock/templates/stock/item_tests.html

@@ -13,7 +13,13 @@
 <div id='button-toolbar'>
     <div class='button-toolbar container-fluid' style="float: right;">
         <div class='btn-group' role='group'>
+            {% if user.is_staff %}
+            <button type='button' class='btn btn-danger' id='delete-test-results'>{% trans "Delete Test Data" %}</button>
+            {% endif %}
             <button type='button' class='btn btn-success' id='add-test-result'>{% trans "Add Test Data" %}</button>
+            {% if item.part.has_test_report_templates %}
+            <button type='button' class='btn btn-default' id='test-report'>{% trans "Test Report" %} <span class='fas fa-tasks'></span></button>
+            {% endif %}
         </div>
         <div class='filter-list' id='filter-list-stocktests'>
             <!-- Empty div -->
@@ -40,6 +46,28 @@ function reloadTable() {
     //$("#test-result-table").bootstrapTable("refresh");
 }
 
+{% if item.part.has_test_report_templates %}
+$("#test-report").click(function() {
+    launchModalForm(
+        "{% url 'stock-item-test-report-select' item.id %}",
+        {
+            follow: true,
+        }
+    );
+});
+{% endif %}
+
+{% if user.is_staff %}
+$("#delete-test-results").click(function() {
+    launchModalForm(
+        "{% url 'stock-item-delete-test-data' item.id %}",
+        {
+            success: reloadTable,
+        }
+    );
+});
+{% endif %}
+
 $("#add-test-result").click(function() {
     launchModalForm(
         "{% url 'stock-item-test-create' %}", {

InvenTree/stock/templates/stock/stock_adjust.html

@@ -32,7 +32,7 @@
             <input class='numberinput'
               min='0'
               {% if stock_action == 'take' or stock_action == 'move' %} max='{{ item.quantity }}' {% endif %}
-              value='{{ item.new_quantity }}' type='number' name='stock-id-{{ item.id }}' id='stock-id-{{ item.id }}'/>
+              value='{% decimal item.new_quantity %}' type='number' name='stock-id-{{ item.id }}' id='stock-id-{{ item.id }}'/>
             {% if item.error %}
             <br><span class='help-inline'>{{ item.error }}</span>
             {% endif %}

InvenTree/stock/templates/stock/stockitem_convert.html

@@ -0,0 +1,17 @@
+{% extends "modal_form.html" %}
+{% load i18n %}
+
+{% block pre_form_content %}
+
+<div class='alert alert-block alert-info'>
+    <b>{% trans "Convert Stock Item" %}</b><br>
+    {% trans "This stock item is current an instance of " %}<i>{{ item.part }}</i><br>
+    {% trans "It can be converted to one of the part variants listed below." %}
+</div>
+
+<div class='alert alert-block alert-warning'>
+    <b>{% trans "Warning" %}</b>
+    {% trans "This action cannot be easily undone" %}
+</div>
+
+{% endblock %}

InvenTree/stock/tests.py

@@ -458,3 +458,68 @@ class TestResultTest(StockTest):
         )
     
         self.assertTrue(item.passedAllRequiredTests())
+
+    def test_duplicate_item_tests(self):
+
+        # Create an example stock item by copying one from the database (because we are lazy)
+        item = StockItem.objects.get(pk=522)
+
+        item.pk = None
+        item.serial = None
+        item.quantity = 50
+
+        item.save()
+
+        # Do some tests!
+        StockItemTestResult.objects.create(
+            stock_item=item,
+            test="Firmware",
+            result=True
+        )
+
+        StockItemTestResult.objects.create(
+            stock_item=item,
+            test="Paint Color",
+            result=True,
+            value="Red"
+        )
+
+        StockItemTestResult.objects.create(
+            stock_item=item,
+            test="Applied Sticker",
+            result=False
+        )
+
+        self.assertEqual(item.test_results.count(), 3)
+        self.assertEqual(item.quantity, 50)
+
+        # Split some items out
+        item2 = item.splitStock(20, None, None)
+
+        self.assertEqual(item.quantity, 30)
+
+        self.assertEqual(item.test_results.count(), 3)
+        self.assertEqual(item2.test_results.count(), 3)
+
+        StockItemTestResult.objects.create(
+            stock_item=item2,
+            test='A new test'
+        )
+
+        self.assertEqual(item.test_results.count(), 3)
+        self.assertEqual(item2.test_results.count(), 4)
+
+        # Test StockItem serialization
+        item2.serializeStock(1, [100], self.user)
+
+        # Add a test result to the parent *after* serialization
+        StockItemTestResult.objects.create(
+            stock_item=item2,
+            test='abcde'
+        )
+
+        self.assertEqual(item2.test_results.count(), 5)
+
+        item3 = StockItem.objects.get(serial=100, part=item2.part)
+
+        self.assertEqual(item3.test_results.count(), 4)

InvenTree/stock/urls.py

@@ -18,12 +18,16 @@ stock_location_detail_urls = [
 
 stock_item_detail_urls = [
     url(r'^edit/', views.StockItemEdit.as_view(), name='stock-item-edit'),
+    url(r'^convert/', views.StockItemConvert.as_view(), name='stock-item-convert'),
     url(r'^serialize/', views.StockItemSerialize.as_view(), name='stock-item-serialize'),
     url(r'^delete/', views.StockItemDelete.as_view(), name='stock-item-delete'),
     url(r'^qr_code/', views.StockItemQRCode.as_view(), name='stock-item-qr'),
+    url(r'^delete_test_data/', views.StockItemDeleteTestData.as_view(), name='stock-item-delete-test-data'),
 
     url(r'^add_tracking/', views.StockItemTrackingCreate.as_view(), name='stock-tracking-create'),
 
+    url(r'^test-report-select/', views.StockItemTestReportSelect.as_view(), name='stock-item-test-report-select'),
+
     url(r'^test/', views.StockItemDetail.as_view(template_name='stock/item_tests.html'), name='stock-item-test-results'),
     url(r'^children/', views.StockItemDetail.as_view(template_name='stock/item_childs.html'), name='stock-item-children'),
     url(r'^attachments/', views.StockItemDetail.as_view(template_name='stock/item_attachments.html'), name='stock-item-attachments'),
@@ -52,6 +56,8 @@ stock_urls = [
 
     url(r'^item/new/?', views.StockItemCreate.as_view(), name='stock-item-create'),
 
+    url(r'^item/test-report-download/', views.StockItemTestReportDownload.as_view(), name='stock-item-test-report-download'),
+
     # URLs for StockItem attachments
     url(r'^item/attachment/', include([
         url(r'^new/', views.StockItemAttachmentCreate.as_view(), name='stock-item-attachment-create'),

InvenTree/stock/views.py

@@ -17,6 +17,7 @@ from django.utils.translation import ugettext as _
 from InvenTree.views import AjaxView
 from InvenTree.views import AjaxUpdateView, AjaxDeleteView, AjaxCreateView
 from InvenTree.views import QRCodeView
+from InvenTree.forms import ConfirmForm
 
 from InvenTree.helpers import str2bool, DownloadFile, GetExportFormats
 from InvenTree.helpers import ExtractSerialNumbers
@@ -26,19 +27,12 @@ from datetime import datetime
 
 from company.models import Company, SupplierPart
 from part.models import Part
+from report.models import TestReport
 from .models import StockItem, StockLocation, StockItemTracking, StockItemAttachment, StockItemTestResult
 
 from .admin import StockItemResource
 
-from .forms import EditStockLocationForm
+from . import forms as StockForms
-from .forms import CreateStockItemForm
-from .forms import EditStockItemForm
-from .forms import AdjustStockForm
-from .forms import TrackingEntryForm
-from .forms import SerializeStockForm
-from .forms import ExportOptionsForm
-from .forms import EditStockItemAttachmentForm
-from .forms import EditStockItemTestResultForm
 
 
 class StockIndex(ListView):
@@ -113,7 +107,7 @@ class StockLocationEdit(AjaxUpdateView):
     """
 
     model = StockLocation
-    form_class = EditStockLocationForm
+    form_class = StockForms.EditStockLocationForm
     context_object_name = 'location'
     ajax_template_name = 'modal_form.html'
     ajax_form_title = _('Edit Stock Location')
@@ -157,7 +151,7 @@ class StockItemAttachmentCreate(AjaxCreateView):
     """
 
     model = StockItemAttachment
-    form_class = EditStockItemAttachmentForm
+    form_class = StockForms.EditStockItemAttachmentForm
     ajax_form_title = _("Add Stock Item Attachment")
     ajax_template_name = "modal_form.html"
 
@@ -202,7 +196,7 @@ class StockItemAttachmentEdit(AjaxUpdateView):
     """
 
     model = StockItemAttachment
-    form_class = EditStockItemAttachmentForm
+    form_class = StockForms.EditStockItemAttachmentForm
     ajax_form_title = _("Edit Stock Item Attachment")
 
     def get_form(self):
@@ -229,13 +223,48 @@ class StockItemAttachmentDelete(AjaxDeleteView):
         }
 
 
+class StockItemDeleteTestData(AjaxUpdateView):
+    """
+    View for deleting all test data
+    """
+
+    model = StockItem
+    form_class = ConfirmForm
+    ajax_form_title = _("Delete All Test Data")
+
+    def get_form(self):
+        return ConfirmForm()
+
+    def post(self, request, *args, **kwargs):
+
+        valid = False
+
+        stock_item = StockItem.objects.get(pk=self.kwargs['pk'])
+        form = self.get_form()
+        
+        confirm = str2bool(request.POST.get('confirm', False))
+
+        if confirm is not True:
+            form.errors['confirm'] = [_('Confirm test data deletion')]
+            form.non_field_errors = [_('Check the confirmation box')]
+        else:
+            stock_item.test_results.all().delete()
+            valid = True
+
+        data = {
+            'form_valid': valid,
+        }
+
+        return self.renderJsonResponse(request, form, data)
+
+
 class StockItemTestResultCreate(AjaxCreateView):
     """
     View for adding a new StockItemTestResult
     """
 
     model = StockItemTestResult
-    form_class = EditStockItemTestResultForm
+    form_class = StockForms.EditStockItemTestResultForm
     ajax_form_title = _("Add Test Result")
 
     def post_save(self, **kwargs):
@@ -263,17 +292,6 @@ class StockItemTestResultCreate(AjaxCreateView):
         form = super().get_form()
         form.fields['stock_item'].widget = HiddenInput()
 
-        # Extract the StockItem object
-        item_id = form['stock_item'].value()
-
-        # Limit the options for the file attachments
-        try:
-            stock_item = StockItem.objects.get(pk=item_id)
-            form.fields['attachment'].queryset = stock_item.attachments.all()
-        except (ValueError, StockItem.DoesNotExist):
-            # Hide the attachments field
-            form.fields['attachment'].widget = HiddenInput()
-
         return form
 
 
@@ -283,7 +301,7 @@ class StockItemTestResultEdit(AjaxUpdateView):
     """
 
     model = StockItemTestResult
-    form_class = EditStockItemTestResultForm
+    form_class = StockForms.EditStockItemTestResultForm
     ajax_form_title = _("Edit Test Result")
 
     def get_form(self):
@@ -292,8 +310,6 @@ class StockItemTestResultEdit(AjaxUpdateView):
 
         form.fields['stock_item'].widget = HiddenInput()
         
-        form.fields['attachment'].queryset = self.object.stock_item.attachments.all()
-        
         return form
 
 
@@ -307,12 +323,81 @@ class StockItemTestResultDelete(AjaxDeleteView):
     context_object_name = "result"
 
 
+class StockItemTestReportSelect(AjaxView):
+    """
+    View for selecting a TestReport template,
+    and generating a TestReport as a PDF.
+    """
+
+    model = StockItem
+    ajax_form_title = _("Select Test Report Template")
+
+    def get_form(self):
+
+        stock_item = StockItem.objects.get(pk=self.kwargs['pk'])
+        return StockForms.TestReportFormatForm(stock_item)
+
+    def post(self, request, *args, **kwargs):
+
+        template_id = request.POST.get('template', None)
+
+        try:
+            template = TestReport.objects.get(pk=template_id)
+        except (ValueError, TestReport.DoesNoteExist):
+            raise ValidationError({'template': _("Select valid template")})
+
+        stock_item = StockItem.objects.get(pk=self.kwargs['pk'])
+
+        url = reverse('stock-item-test-report-download')
+
+        url += '?stock_item={id}'.format(id=stock_item.pk)
+        url += '&template={id}'.format(id=template.pk)
+
+        data = {
+            'form_valid': True,
+            'url': url,
+        }
+
+        return self.renderJsonResponse(request, self.get_form(), data=data)
+
+
+class StockItemTestReportDownload(AjaxView):
+    """
+    Download a TestReport against a StockItem.
+
+    Requires the following arguments to be passed as URL params:
+
+    stock_item - Valid PK of a StockItem object
+    template - Valid PK of a TestReport template object
+
+    """
+
+    def get(self, request, *args, **kwargs):
+
+        template = request.GET.get('template', None)
+        stock_item = request.GET.get('stock_item', None)
+
+        try:
+            template = TestReport.objects.get(pk=template)
+        except (ValueError, TestReport.DoesNotExist):
+            raise ValidationError({'template': 'Invalid template ID'})
+
+        try:
+            stock_item = StockItem.objects.get(pk=stock_item)
+        except (ValueError, StockItem.DoesNotExist):
+            raise ValidationError({'stock_item': 'Invalid StockItem ID'})
+
+        template.stock_item = stock_item
+
+        return template.render(request)
+
+
 class StockExportOptions(AjaxView):
     """ Form for selecting StockExport options """
 
     model = StockLocation
     ajax_form_title = _('Stock Export Options')
-    form_class = ExportOptionsForm
+    form_class = StockForms.ExportOptionsForm
 
     def post(self, request, *args, **kwargs):
 
@@ -455,7 +540,7 @@ class StockAdjust(AjaxView, FormMixin):
 
     ajax_template_name = 'stock/stock_adjust.html'
     ajax_form_title = _('Adjust Stock')
-    form_class = AdjustStockForm
+    form_class = StockForms.AdjustStockForm
     stock_items = []
 
     def get_GET_items(self):
@@ -773,7 +858,7 @@ class StockItemEdit(AjaxUpdateView):
     """
 
     model = StockItem
-    form_class = EditStockItemForm
+    form_class = StockForms.EditStockItemForm
     context_object_name = 'item'
     ajax_template_name = 'modal_form.html'
     ajax_form_title = _('Edit Stock Item')
@@ -802,6 +887,30 @@ class StockItemEdit(AjaxUpdateView):
         return form
 
 
+class StockItemConvert(AjaxUpdateView):
+    """
+    View for 'converting' a StockItem to a variant of its current part.
+    """
+
+    model = StockItem
+    form_class = StockForms.ConvertStockItemForm
+    ajax_form_title = _('Convert Stock Item')
+    ajax_template_name = 'stock/stockitem_convert.html'
+    context_object_name = 'item'
+
+    def get_form(self):
+        """
+        Filter the available parts.
+        """
+
+        form = super().get_form()
+        item = self.get_object()
+
+        form.fields['part'].queryset = item.part.get_all_variants()
+
+        return form
+
+
 class StockLocationCreate(AjaxCreateView):
     """
     View for creating a new StockLocation
@@ -809,7 +918,7 @@ class StockLocationCreate(AjaxCreateView):
     """
 
     model = StockLocation
-    form_class = EditStockLocationForm
+    form_class = StockForms.EditStockLocationForm
     context_object_name = 'location'
     ajax_template_name = 'modal_form.html'
     ajax_form_title = _('Create new Stock Location')
@@ -834,7 +943,7 @@ class StockItemSerialize(AjaxUpdateView):
     model = StockItem
     ajax_template_name = 'stock/item_serialize.html'
     ajax_form_title = _('Serialize Stock')
-    form_class = SerializeStockForm
+    form_class = StockForms.SerializeStockForm
 
     def get_form(self):
 
@@ -843,7 +952,7 @@ class StockItemSerialize(AjaxUpdateView):
         # Pass the StockItem object through to the form
         context['item'] = self.get_object()
 
-        form = SerializeStockForm(**context)
+        form = StockForms.SerializeStockForm(**context)
 
         return form
 
@@ -922,11 +1031,41 @@ class StockItemCreate(AjaxCreateView):
     """
 
     model = StockItem
-    form_class = CreateStockItemForm
+    form_class = StockForms.CreateStockItemForm
     context_object_name = 'item'
     ajax_template_name = 'modal_form.html'
     ajax_form_title = _('Create new Stock Item')
 
+    def get_part(self, form=None):
+        """
+        Attempt to get the "part" associted with this new stockitem.
+
+        - May be passed to the form as a query parameter (e.g. ?part=<id>)
+        - May be passed via the form field itself.
+        """
+
+        # Try to extract from the URL query
+        part_id = self.request.GET.get('part', None)
+
+        if part_id:
+            try:
+                part = Part.objects.get(pk=part_id)
+                return part
+            except (Part.DoesNotExist, ValueError):
+                pass
+
+        # Try to get from the form
+        if form:
+            try:
+                part_id = form['part'].value()
+                part = Part.objects.get(pk=part_id)
+                return part
+            except (Part.DoesNotExist, ValueError):
+                pass
+
+        # Could not extract a part object
+        return None
+
     def get_form(self):
         """ Get form for StockItem creation.
         Overrides the default get_form() method to intelligently limit
@@ -935,15 +1074,9 @@ class StockItemCreate(AjaxCreateView):
 
         form = super().get_form()
 
-        part = None
+        part = self.get_part(form=form)
-
-        # If the user has selected a Part, limit choices for SupplierPart
-        if form['part'].value():
-            part_id = form['part'].value()
-
-            try:
-                part = Part.objects.get(id=part_id)
 
+        if part is not None:
             sn = part.getNextSerialNumber()
             form.field_placeholder['serial_numbers'] = _('Next available serial number is') + ' ' + str(sn)
 
@@ -977,11 +1110,8 @@ class StockItemCreate(AjaxCreateView):
                     # TODO - This does NOT work for some reason? Ref build.views.BuildItemCreate
                     form.fields['supplier_part'].initial = all_parts[0].id
 
-            except Part.DoesNotExist:
-                pass
-
         # Otherwise if the user has selected a SupplierPart, we know what Part they meant!
-        elif form['supplier_part'].value() is not None:
+        if form['supplier_part'].value() is not None:
             pass
             
         return form
@@ -1004,28 +1134,21 @@ class StockItemCreate(AjaxCreateView):
         else:
             initials = super(StockItemCreate, self).get_initial().copy()
 
-        part_id = self.request.GET.get('part', None)
+        part = self.get_part()
+
         loc_id = self.request.GET.get('location', None)
         sup_part_id = self.request.GET.get('supplier_part', None)
 
-        part = None
         location = None
         supplier_part = None
 
-        # Part field has been specified
+        if part is not None:
-        if part_id:
-            try:
-                part = Part.objects.get(pk=part_id)
-
             # Check that the supplied part is 'valid'
             if not part.is_template and part.active and not part.virtual:
                 initials['part'] = part
                 initials['location'] = part.get_default_location()
                 initials['supplier_part'] = part.default_supplier
 
-            except (ValueError, Part.DoesNotExist):
-                pass
-
         # SupplierPart field has been specified
         # It must match the Part, if that has been supplied
         if sup_part_id:
@@ -1229,7 +1352,7 @@ class StockItemTrackingEdit(AjaxUpdateView):
 
     model = StockItemTracking
     ajax_form_title = _('Edit Stock Tracking Entry')
-    form_class = TrackingEntryForm
+    form_class = StockForms.TrackingEntryForm
 
 
 class StockItemTrackingCreate(AjaxCreateView):
@@ -1238,7 +1361,7 @@ class StockItemTrackingCreate(AjaxCreateView):
 
     model = StockItemTracking
     ajax_form_title = _("Add Stock Tracking Entry")
-    form_class = TrackingEntryForm
+    form_class = StockForms.TrackingEntryForm
 
     def post(self, request, *args, **kwargs):
 

InvenTree/templates/js/part.html

@@ -286,6 +286,14 @@ function loadPartTable(table, url, options={}) {
     });
 }
 
+function yesNoLabel(value) {
+    if (value) {
+        return `<span class='label label-green'>{% trans "YES" %}</span>`;
+    } else {
+        return `<span class='label label-yellow'>{% trans "NO" %}</span>`;
+    }
+}
+
 
 function loadPartTestTemplateTable(table, options) {
     /*
@@ -332,16 +340,30 @@ function loadPartTestTemplateTable(table, options) {
                 title: "{% trans "Test Name" %}",
                 sortable: true,
             },
+            {
+                field: 'description',
+                title: "{% trans "Description" %}",
+            },
             {
                 field: 'required',
                 title: "{% trans 'Required' %}",
                 sortable: true,
                 formatter: function(value) {
-                    if (value) {
+                    return yesNoLabel(value);
-                        return `<span class='label label-green'>{% trans "YES" %}</span>`;
-                    } else {
-                        return `<span class='label label-yellow'>{% trans "NO" %}</span>`;
                 }
+            },
+            {
+                field: 'requires_value',
+                title: "{% trans "Requires Value" %}",
+                formatter: function(value) {
+                    return yesNoLabel(value);
+                }
+            },
+            {
+                field: 'requires_attachment',
+                title: "{% trans "Requires Attachment" %}",
+                formatter: function(value) {
+                    return yesNoLabel(value);
                 }
             },
             {

InvenTree/templates/js/stock.html

@@ -32,17 +32,6 @@ function noResultBadge() {
     return `<span class='label label-blue float-right'>{% trans "NO RESULT" %}</span>`;
 }
 
-function testKey(test_name) {
-    // Convert test name to a unique key without any illegal chars
-
-    test_name = test_name.trim().toLowerCase();
-    test_name = test_name.replace(' ', '');
-
-    test_name = test_name.replace(/[^0-9a-z]/gi, '');
-
-    return test_name;
-}
-
 function loadStockTestResultsTable(table, options) {
     /*
      * Load StockItemTestResult table
@@ -56,8 +45,8 @@ function loadStockTestResultsTable(table, options) {
             html += `<span class='badge'>${row.user_detail.username}</span>`;
         }
 
-        if (row.attachment_detail) {
+        if (row.attachment) {
-            html += `<a href='${row.attachment_detail.attachment}'><span class='fas fa-file-alt label-right'></span></a>`;
+            html += `<a href='${row.attachment}'><span class='fas fa-file-alt label-right'></span></a>`;
         }
 
         return html;
@@ -177,14 +166,14 @@ function loadStockTestResultsTable(table, options) {
                             var match = false;
                             var override = false;
 
-                            var key = testKey(item.test);
+                            var key = item.key;
 
                             // Try to associate this result with a test row
                             tableData.forEach(function(row, index) {
                                 
                                 
                                 // The result matches the test template row
-                                if (key == testKey(row.test_name)) {
+                                if (key == row.key) {
                                     
                                     // Force the names to be the same!
                                     item.test_name = row.test_name;
@@ -348,12 +337,21 @@ function loadStockTable(table, options) {
                 } else {
                     return '-';
                 }
-            } else if (field == 'location__path') {
+            } else if (field == 'location_detail.pathstring') {
                 /* Determine how many locations */
                 var locations = [];
 
                 data.forEach(function(item) {
-                    var loc = item.location;
+
+                    var loc = null;
+
+                    if (item.location_detail) {
+                        loc = item.location_detail.pathstring;
+                    } else {
+                        loc = "{% trans "Undefined location" %}";
+                    }
+
+                    console.log("Location: " + loc);
 
                     if (!locations.includes(loc)) {
                         locations.push(loc); 
@@ -364,7 +362,11 @@ function loadStockTable(table, options) {
                     return "In " + locations.length + " locations";
                 } else {
                     // A single location!
-                    return renderLink(row.location__path, '/stock/location/' + row.location + '/')
+                    if (row.location_detail) {
+                        return renderLink(row.location_detail.pathstring, `/stock/location/${row.location}/`);
+                    } else {
+                        return "<i>{% trans "Undefined location" %}</i>";
+                    }
                 }
             } else if (field == 'notes') {
                 var notes = [];

InvenTree/templates/js/table_filters.html

@@ -34,6 +34,14 @@ function getAvailableTableFilters(tableKey) {
                 title: '{% trans "Is allocated" %}',
                 description: '{% trans "Item has been alloacted" %}',
             },
+            serial_gte: {
+                title: "{% trans "Serial number GTE" %}",
+                description: "{% trans "Serial number greater than or equal to" %}"
+            },
+            serial_lte: {
+                title: "{% trans "Serial number LTE" %}",
+                description: "{% trans "Serial number less than or equal to" %}",
+            },
         };
     }
 

Makefile

@@ -51,12 +51,12 @@ style:
 # Run unit tests
 test:
 	cd InvenTree && python3 manage.py check
-	cd InvenTree && python3 manage.py test build common company order part stock 
+	cd InvenTree && python3 manage.py test build common company order part report stock InvenTree
 
 # Run code coverage
 coverage:
 	cd InvenTree && python3 manage.py check
-	coverage run InvenTree/manage.py test build common company order part stock InvenTree
+	coverage run InvenTree/manage.py test build common company order part report stock InvenTree
 	coverage html
 
 # Install packages required to generate code docs

README.md

@@ -33,3 +33,9 @@ For code documentation, refer to the [developer documentation](http://inventree.
 ## Contributing
 
 Contributions are welcomed and encouraged. Please help to make this project even better! Refer to the [contribution page](https://inventree.github.io/pages/contribute).
+
+## Donate
+
+If you use InvenTree and find it to be useful, please consider making a donation toward its continued development. 
+
+[Donate via PayPal](https://paypal.me/inventree?locale.x=en_AU)

requirements.txt

@@ -20,3 +20,5 @@ coverage==4.0.3                 # Unit test coverage
 python-coveralls==2.9.1         # Coveralls linking (for Travis)
 rapidfuzz==0.7.6                # Fuzzy string matching
 django-stdimage==5.1.1          # Advanced ImageField management
+django-tex==1.1.7               # LaTeX PDF export
+django-weasyprint==1.0.1        # HTML PDF export