Limit choices for Part selection

Based on is_template / virtual / active status

InvenTree/part/migrations/0030_auto_20200318_1027.py

@@ -0,0 +1,24 @@
+# Generated by Django 2.2.9 on 2020-03-18 10:27
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('part', '0029_auto_20200223_0901'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='bomitem',
+            name='part',
+            field=models.ForeignKey(help_text='Select parent part', limit_choices_to={'assembly': True, 'is_template': False}, 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(help_text='Select part to be used in BOM', limit_choices_to={'component': True, 'is_template': False}, on_delete=django.db.models.deletion.CASCADE, related_name='used_in', to='part.Part'),
+        ),
+    ]