Rename field part.has_variants to part.is_template

InvenTree/part/migrations/0004_auto_20190525_2356.py

@@ -0,0 +1,24 @@
+# Generated by Django 2.2 on 2019-05-25 13:56
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('part', '0003_auto_20190525_2226'),
+    ]
+
+    operations = [
+        migrations.RenameField(
+            model_name='part',
+            old_name='has_variants',
+            new_name='is_template',
+        ),
+        migrations.AlterField(
+            model_name='part',
+            name='variant_of',
+            field=models.ForeignKey(blank=True, help_text='Is this part a variant of another part?', limit_choices_to={'active': True, 'is_template': True}, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='variants', to='part.Part'),
+        ),
+    ]