Added new models and model admins to Python3 sample project.

python3_sample_project/app/admin.py

@@ -1,10 +1,11 @@
 from django.contrib import admin
 
 from adminsortable.admin import (SortableAdmin, SortableTabularInline,
-    SortableStackedInline, SortableGenericStackedInline)
+    SortableStackedInline, SortableGenericStackedInline,
+    NonSortableParentAdmin)
 from adminsortable.utils import get_is_sortable
 from app.models import (Category, Widget, Project, Credit, Note, GenericNote,
-    Component, Person)
+    Component, Person, NonSortableCategory, SortableCategoryWidget)
 
 
 admin.site.register(Category, SortableAdmin)
@@ -65,3 +66,14 @@ class PersonAdmin(SortableAdmin):
     list_display = ['__str__', 'is_board_member']
 
 admin.site.register(Person, PersonAdmin)
+
+
+class SortableCategoryWidgetInline(SortableStackedInline):
+    model = SortableCategoryWidget
+    extra = 0
+
+
+class NonSortableCategoryAdmin(NonSortableParentAdmin):
+    inlines = [SortableCategoryWidgetInline]
+
+admin.site.register(NonSortableCategory, NonSortableCategoryAdmin)

python3_sample_project/app/migrations/0002_nonsortablecategory_sortablecategorywidget.py

@@ -0,0 +1,44 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+import adminsortable.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('app', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='NonSortableCategory',
+            fields=[
+                ('id', models.AutoField(serialize=False, auto_created=True, verbose_name='ID', primary_key=True)),
+                ('title', models.CharField(max_length=50)),
+            ],
+            options={
+                'verbose_name': 'Non-Sortable Category',
+                'verbose_name_plural': 'Non-Sortable Categories',
+                'abstract': False,
+            },
+            bases=(models.Model,),
+        ),
+        migrations.CreateModel(
+            name='SortableCategoryWidget',
+            fields=[
+                ('id', models.AutoField(serialize=False, auto_created=True, verbose_name='ID', primary_key=True)),
+                ('order', models.PositiveIntegerField(db_index=True, editable=False, default=1)),
+                ('title', models.CharField(max_length=50)),
+                ('non_sortable_category', adminsortable.fields.SortableForeignKey(to='app.NonSortableCategory')),
+            ],
+            options={
+                'ordering': ['order'],
+                'verbose_name': 'Sortable Category Widget',
+                'abstract': False,
+                'verbose_name_plural': 'Sortable Category Widgets',
+            },
+            bases=(models.Model,),
+        ),
+    ]

python3_sample_project/app/models.py

@@ -119,3 +119,23 @@ class Person(Sortable):
 
     def __str__(self):
         return '{0} {1}'.format(self.first_name, self.last_name)
+
+
+class NonSortableCategory(SimpleModel):
+    class Meta(SimpleModel.Meta):
+        verbose_name = 'Non-Sortable Category'
+        verbose_name_plural = 'Non-Sortable Categories'
+
+    def __str__(self):
+        return self.title
+
+
+class SortableCategoryWidget(SimpleModel, Sortable):
+    class Meta(Sortable.Meta):
+        verbose_name = 'Sortable Category Widget'
+        verbose_name_plural = 'Sortable Category Widgets'
+
+    non_sortable_category = SortableForeignKey(NonSortableCategory)
+
+    def __str__(self):
+        return self.title