Generate a list of allowed BOM items and pass to the form template

InvenTree/part/models.py

@@ -678,6 +678,18 @@ class Part(models.Model):
             parts.append(bom.sub_part)
         return parts
 
+    def get_allowed_bom_items(self):
+        """ Return a list of parts which can be added to a BOM for this part.
+
+        - Exclude parts which are not 'component' parts
+        - Exclude parts which this part is in the BOM for
+        """
+
+        parts = Part.objects.filter(component=True)
+        parts = parts.exclude(id__in=[part.id for part in self.used_in.all()])
+
+        return parts
+
     @property
     def supplier_count(self):
         """ Return the number of supplier parts available for this part """

InvenTree/part/templates/part/bom_upload/select_parts.html

@@ -49,6 +49,9 @@
                     {% if item.column.guess == 'Part' %}
                     <select class='select' id='id_part_{{ row.index }}' name='part_select_{{ row.index }}'>
                         <option value=''>---------</option>
+                        {% for part in allowed_parts_list %}
+                        <option value='{{ part.id }}'>{{ part.full_name }} - {{ part.description }}</option>
+                        {% endfor %}
                     </select>
                     <br>
                     {{ item.cell }}

InvenTree/part/views.py

@@ -654,6 +654,7 @@ class BomUpload(FormView):
     bom_columns = []
     bom_rows = []
     missing_columns = []
+    allowed_parts = []
 
     
     def get_success_url(self):
@@ -703,9 +704,16 @@ class BomUpload(FormView):
         ctx['bom_columns'] = self.bom_columns
         ctx['bom_rows'] = rows
         ctx['missing_columns'] = self.missing_columns
+        ctx['allowed_parts_list'] = self.allowed_parts
 
         return ctx
 
+    def getAllowedParts(self):
+        """ Return a queryset of parts which are allowed to be added to this BOM.
+        """
+
+        return self.part.get_allowed_bom_items()
+
     def get(self, request, *args, **kwargs):
         """ Perform the initial 'GET' request.
 
@@ -915,6 +923,7 @@ class BomUpload(FormView):
         self.request = request
 
         self.part = get_object_or_404(Part, pk=self.kwargs['pk'])
+        self.allowed_parts = self.getAllowedParts()
         self.form = self.get_form(self.get_form_class())
 
         # Did the user POST a file named bom_file?