More 'limit_choices_to' limitations for template parts

InvenTree/build/migrations/0003_auto_20190525_2355.py

@@ -0,0 +1,19 @@
+# Generated by Django 2.2 on 2019-05-25 13:55
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('build', '0002_auto_20190520_2204'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='build',
+            name='part',
+            field=models.ForeignKey(help_text='Select part to build', limit_choices_to={'active': True, 'buildable': True, 'has_variants': False}, on_delete=django.db.models.deletion.CASCADE, related_name='builds', to='part.Part'),
+        ),
+    ]

InvenTree/build/models.py

@@ -50,6 +50,7 @@ class Build(models.Model):
     part = models.ForeignKey('part.Part', on_delete=models.CASCADE,
                              related_name='builds',
                              limit_choices_to={
+                                 'has_variants': False,
                                  'buildable': True,
                                  'active': True
                              },

InvenTree/company/migrations/0004_auto_20190525_2354.py

@@ -0,0 +1,19 @@
+# Generated by Django 2.2 on 2019-05-25 13:54
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('company', '0003_remove_supplierpart_minimum'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='supplierpart',
+            name='part',
+            field=models.ForeignKey(help_text='Select part', limit_choices_to={'has_variants': False, 'purchaseable': True}, on_delete=django.db.models.deletion.CASCADE, related_name='supplier_parts', to='part.Part'),
+        ),
+    ]

InvenTree/company/models.py

@@ -188,7 +188,10 @@ class SupplierPart(models.Model):
 
     part = models.ForeignKey('part.Part', on_delete=models.CASCADE,
                              related_name='supplier_parts',
-                             limit_choices_to={'purchaseable': True},
+                             limit_choices_to={
+                                 'purchaseable': True,
+                                 'has_variants': False,
+                             },
                              help_text='Select part',
                              )