Added related parts urls, views, form and templates

Adding related part relationships work but are still not shown in the part detail page

InvenTree/part/forms.py

@@ -13,7 +13,7 @@ from mptt.fields import TreeNodeChoiceField
 from django import forms
 from django.utils.translation import ugettext as _
 
-from .models import Part, PartCategory, PartAttachment
+from .models import Part, PartCategory, PartAttachment, PartRelated
 from .models import BomItem
 from .models import PartParameterTemplate, PartParameter
 from .models import PartTestTemplate
@@ -104,6 +104,25 @@ class BomUploadSelectFile(HelperForm):
         ]
 
 
+class CreatePartRelatedForm(HelperForm):
+    """ Form for creating a PartRelated object """
+
+    class Meta:
+        model = PartRelated
+        fields = [
+            'part_1',
+            'part_2',
+        ]
+        labels = {
+            'part_2': _('Related Part'),
+        }
+
+    def save(self):
+        """ Disable model saving """
+
+        return super(CreatePartRelatedForm, self).save(commit=False)
+
+
 class EditPartAttachmentForm(HelperForm):
     """ Form for editing a PartAttachment object """
 

InvenTree/part/models.py

@@ -1264,11 +1264,11 @@ class Part(MPTTModel):
         parts_2 = self.related_parts_2.filter(part_2__id=self.pk)
 
         for part in parts_1:
-            # Append 
+            # Append
             related_parts.append(part.part_2)
 
         for part in parts_2:
-            # Append 
+            # Append
             related_parts.append(part.part_1)
 
         return related_parts
@@ -1749,28 +1749,41 @@ class PartRelated(models.Model):
 
     part_1 = models.ForeignKey(Part, related_name='related_parts_1', on_delete=models.DO_NOTHING)
 
-    part_2 = models.ForeignKey(Part, related_name='related_parts_2', on_delete=models.DO_NOTHING)
+    part_2 = models.ForeignKey(Part, related_name='related_parts_2', on_delete=models.DO_NOTHING,
+                               help_text=_('Choose Related Part'))
+
+    def __str__(self):
+        return f'{self.part_1} <-> {self.part_2}'
 
     def create_relationship(self, part_1, part_2):
+        ''' Create relationship between two parts '''
+
+        validate = True
 
         parts = Part.objects.all()
+        related_parts = PartRelated.objects.all()
 
-        # Check if part exist
+        # Check if part exist and there are not the same part
         if (part_1 in parts and part_2 in parts) and (part_1 is not part_2):
+            # Check if relation exists already
+            for relation in related_parts:
+                if (part_1 == relation.part_1 and part_2 == relation.part_2) \
+                   or (part_1 == relation.part_2 and part_2 == relation.part_1):
+                    validate = False
+        else:
+            validate = False
+
+        if validate:
             # Add relationship
             self.part_1 = part_1
             self.part_2 = part_2
             self.save()
 
-            return True
-        else:
-            return False
+        return validate
 
     @classmethod
     def create(cls, part_1, part_2):
+        ''' Create PartRelated object '''
         related_part = cls()
         related_part.create_relationship(part_1, part_2)
         return related_part
-
-    def __str__(self):
-        return f'{part_1} <-> {part_2}'

InvenTree/part/templates/part/related.html

@@ -0,0 +1,46 @@
+{% extends "part/part_base.html" %}
+{% load static %}
+{% load i18n %}
+
+{% block details %}
+
+{% include 'part/tabs.html' with tab='related-parts' %}
+
+<h4>{% trans "Related Parts" %}</h4>
+<hr>
+
+<div id='button-bar'>
+    <div class='button-toolbar container-fluid' style='float: left;'>
+        <button class='btn btn-primary' type='button' id='add-related-part' title='{% trans "Add Related" %}'>{% trans "Add Related" %}</button>
+        <div class='filter-list' id='filter-list-related'>
+            <!-- An empty div in which the filter list will be constructed -->
+        </div>
+    </div>
+</div>
+
+<table class='table table-striped table-condensed related-table' id='table-related-part' data-toolbar='#button-bar'>
+</table>
+
+
+{% endblock %}
+
+{% block js_ready %}
+{{ block.super }}
+
+loadPartRelatedTable($("#table-related-part"), {
+    url: "{% url 'api-part-list' %}",
+    params: {
+        part: {{ part.id }},
+    },
+});
+
+$("#add-related-part").click(function() {
+    launchModalForm("{% url 'part-related-create' %}", {
+        data: {
+            part: {{ part.id }},
+        },
+        reload: true,
+    });
+});
+
+{% endblock %}

InvenTree/part/templates/part/tabs.html

@@ -63,6 +63,9 @@
         </a>
     </li>
     {% endif %}
+    <li{% ifequal tab 'related-parts' %} class="active"{% endifequal %}>
+        <a href="{% url 'part-related' part.id %}">{% trans "Related Parts" %} {% if part.related_count > 0 %}<span class="badge">{{ part.related_count }}</span>{% endif %}</a>
+    </li>
     <li{% ifequal tab 'attachments' %} class="active"{% endifequal %}>
         <a href="{% url 'part-attachments' part.id %}">{% trans "Attachments" %} {% if part.attachment_count > 0 %}<span class="badge">{{ part.attachment_count }}</span>{% endif %}</a>
     </li>

InvenTree/part/urls.py

@@ -12,6 +12,11 @@ from django.conf.urls import url, include
 
 from . import views
 
+part_related_urls = [
+    url(r'^new/?', views.PartRelatedCreate.as_view(), name='part-related-create'),
+    url(r'^(?P<pk>\d+)/delete/?', views.PartRelatedDelete.as_view(), name='part-related-delete'),
+]
+
 part_attachment_urls = [
     url(r'^new/?', views.PartAttachmentCreate.as_view(), name='part-attachment-create'),
     url(r'^(?P<pk>\d+)/edit/?', views.PartAttachmentEdit.as_view(), name='part-attachment-edit'),
@@ -60,6 +65,7 @@ part_detail_urls = [
     url(r'^sale-prices/', views.PartDetail.as_view(template_name='part/sale_prices.html'), name='part-sale-prices'),
     url(r'^tests/', views.PartDetail.as_view(template_name='part/part_tests.html'), name='part-test-templates'),
     url(r'^track/?', views.PartDetail.as_view(template_name='part/track.html'), name='part-track'),
+    url(r'^related-parts/?', views.PartDetail.as_view(template_name='part/related.html'), name='part-related'),
     url(r'^attachments/?', views.PartDetail.as_view(template_name='part/attachments.html'), name='part-attachments'),
     url(r'^notes/?', views.PartNotes.as_view(), name='part-notes'),
     
@@ -112,6 +118,9 @@ part_urls = [
     # Part category
     url(r'^category/(?P<pk>\d+)/', include(part_category_urls)),
 
+    # Part related
+    url(r'^related-parts/', include(part_related_urls)),
+
     # Part attachments
     url(r'^attachment/', include(part_attachment_urls)),
 

InvenTree/part/views.py

@@ -21,7 +21,7 @@ import os
 from rapidfuzz import fuzz
 from decimal import Decimal, InvalidOperation
 
-from .models import PartCategory, Part, PartAttachment
+from .models import PartCategory, Part, PartAttachment, PartRelated
 from .models import PartParameterTemplate, PartParameter
 from .models import BomItem
 from .models import match_part_names
@@ -70,6 +70,73 @@ class PartIndex(InvenTreeRoleMixin, ListView):
         return context
 
 
+class PartRelatedCreate(AjaxCreateView):
+    """ View for creating a new PartRelated object
+
+    - The view only makes sense if a Part object is passed to it
+    """
+    model = PartRelated
+    form_class = part_forms.CreatePartRelatedForm
+    ajax_form_title = _("Add Related Part")
+    ajax_template_name = "modal_form.html"
+    role_required = 'part.change'
+
+    # TODO: QuerySet should not show parts already related to object
+
+    def get_initial(self):
+        """ Point part_1 to parent part """
+
+        initials = {}
+
+        part_id = self.request.GET.get('part', None)
+
+        if part_id:
+            try:
+                initials['part_1'] = Part.objects.get(pk=part_id)
+            except (Part.DoesNotExist, ValueError):
+                pass
+
+        return initials
+
+    def get_form(self):
+        """ Create a form to upload a new PartRelated
+
+        - Hide the 'part_1' field (parent part)
+        """
+
+        form = super(AjaxCreateView, self).get_form()
+
+        form.fields['part_1'].widget = HiddenInput()
+
+        return form
+
+    def post_save(self):
+        """ Save PartRelated model (POST method does not) """
+
+        form = self.get_form()
+
+        if form.is_valid():
+            print('form is valid!')
+
+            part_1 = form.cleaned_data['part_1']
+            part_2 = form.cleaned_data['part_2']
+
+            print(f'{part_1=}')
+            print(f'{part_2=}')
+
+            PartRelated.create(part_1, part_2)
+
+
+class PartRelatedDelete(AjaxDeleteView):
+    """ View for deleting a PartRelated object """
+
+    model = PartRelated
+    ajax_form_title = _("Delete Related Part")
+    ajax_template_name = "related_delete.html"
+    context_object_name = "related"
+    role_required = 'part.change'
+
+
 class PartAttachmentCreate(AjaxCreateView):
     """ View for creating a new PartAttachment object
 

InvenTree/templates/js/part.html

@@ -163,6 +163,41 @@ function loadSimplePartTable(table, url, options={}) {
 }
 
 
+function loadPartRelatedTable(table, options={}) {
+    /* Load related parts table */
+
+    var columns = [
+        {
+            field: options.params['part'],
+            title: '{% trans 'Part' %}',
+            sortable: true,
+            sortName: 'name',
+            formatter: function(value, row, index, field) {
+
+                var name = '';
+
+                if (row.IPN) {
+                    name += row.IPN + ' | ' + row.name;
+                } else {
+                    name += row.name;
+                }
+                
+                return renderLink(name, '/part/' + row.pk + '/'); 
+            }
+        }
+    ];
+
+    $(table).inventreeTable({
+        sortName: 'part',
+        groupBy: false,
+        name: options.name || 'related_parts',
+        formatNoMatches: function() { return "{% trans "No parts found" %}"; },
+        columns: columns,
+        showColumns: true,
+    });
+}
+
+
 function loadParametricPartTable(table, options={}) {
     /* Load parametric table for part parameters
      *