Added TaggableForm, and tests

taggit/forms.py

+from django import forms
+
+from taggit.utils import parse_tags
+
+
+class TaggableForm(forms.ModelForm):
+    tags = forms.CharField(help_text="A comma seperated list of tags.")
+    
+    def save(self, commit=True):
+        obj = super(TaggableForm, self).save(commit=False)
+        def save_tags():
+            # TODO: Remove the assumption that the manager is named 'tags'
+            obj.tags.set(parse_tags(self.cleaned_data['tags']))
+        if commit:
+            obj.save()
+            save_tags()
+        else:
+            obj.save_tags = save_tags
+        return obj

taggit/tests/__init__.py

-from taggit.tests.tests import (AddTagTestCase)
+

taggit/tests/forms.py

+from taggit.forms import TaggableForm
+
+from taggit.tests.models import Food
+
+
+class FoodForm(TaggableForm):
+    class Meta:
+        model = Food

taggit/tests/tests.py

 from django.test import TestCase
 
 from taggit.models import Tag
+from taggit.tests.forms import FoodForm
 from taggit.tests.models import Food
 
 class BaseTaggingTest(TestCase):
@@ -32,3 +33,13 @@ class AddTagTestCase(BaseTaggingTest):
         apple.tags.remove('green')
         self.assert_tags_equal(apple.tags.all(), ['red'])
         self.assert_tags_equal(Food.tags.all(), ['green', 'red'])
+
+class TaggableFormTestCase(BaseTaggingTest):
+    def test_form(self):
+        self.assertEqual(FoodForm.base_fields.keys(), ['name', 'tags'])
+        
+        f = FoodForm({'name': 'apple', 'tags': 'green, red, yummy'})
+        f.save()
+        
+        apple = Food.objects.get(name='apple')
+        self.assert_tags_equal(apple.tags.all(), ['green', 'red', 'yummy'])

taggit/utils.py

 from functools import wraps
 
-def split_tags(tags):
+def parse_tags(tags):
     return [o.strip() for o in tags.split(',') if o.strip()]
 
 def require_instance_manager(func):