Ticket #13811: formset_validation_tests.diff

tests/modeltests/model_formsets/models.py

@@ -35 +35 @@
     def __unicode__(self):
         return u'%s: %s' % (self.my_pk, self.title)
 
+class Editor(models.Model):
+    name = models.CharField(max_length=100)
+
+class BookWithOptionalAltEditor(models.Model):
+    author = models.ForeignKey(Author)
+    # Optional secondary author
+    alt_editor = models.ForeignKey(Editor, blank=True, null=True)
+    title = models.CharField(max_length=100)
+
+    class Meta:
+        unique_together = (
+            ('author', 'title', 'alt_editor'),
+        )
+
+    def __unicode__(self):
+        return self.title
+
 class AlternateBook(Book):
     notes = models.CharField(max_length=100)
 
@@ -648 +665 @@
 >>> formset.save()
 [<AlternateBook: Flowers of Evil - English translation of Les Fleurs du Mal>]
 
+Test inline formsets where the inline-edited object has a unique_together constraint with a nullable member
 
+>>> AuthorBooksFormSet4 = inlineformset_factory(Author, BookWithOptionalAltEditor, can_delete=False, extra=2)
+
+>>> formset = AuthorBooksFormSet4(instance=author)
+>>> for form in formset.forms:
+...     print form.as_p()
+<p><label for="id_bookwithoptionalalteditor_set-0-alt_editor">Alt editor:</label> <select name="bookwithoptionalalteditor_set-0-alt_editor" id="id_bookwithoptionalalteditor_set-0-alt_editor">
+    <option value="" selected="selected">---------</option>
+    </select></p>
+    <p><label for="id_bookwithoptionalalteditor_set-0-title">Title:</label> <input id="id_bookwithoptionalalteditor_set-0-title" type="text" name="bookwithoptionalalteditor_set-0-title" maxlength="100" /><input type="hidden" name="bookwithoptionalalteditor_set-0-author" value="1" id="id_bookwithoptionalalteditor_set-0-author" /><input type="hidden" name="bookwithoptionalalteditor_set-0-id" id="id_bookwithoptionalalteditor_set-0-id" /></p>
+    <p><label for="id_bookwithoptionalalteditor_set-1-alt_editor">Alt editor:</label> <select name="bookwithoptionalalteditor_set-1-alt_editor" id="id_bookwithoptionalalteditor_set-1-alt_editor">
+    <option value="" selected="selected">---------</option>
+    </select></p>
+    <p><label for="id_bookwithoptionalalteditor_set-1-title">Title:</label> <input id="id_bookwithoptionalalteditor_set-1-title" type="text" name="bookwithoptionalalteditor_set-1-title" maxlength="100" /><input type="hidden" name="bookwithoptionalalteditor_set-1-author" value="1" id="id_bookwithoptionalalteditor_set-1-author" /><input type="hidden" name="bookwithoptionalalteditor_set-1-id" id="id_bookwithoptionalalteditor_set-1-id" /></p>
+
+>>> data = {
+...     'bookwithoptionalalteditor_set-TOTAL_FORMS': '2', # the number of forms rendered
+...     'bookwithoptionalalteditor_set-INITIAL_FORMS': '0', # the number of forms with initial data
+...     'bookwithoptionalalteditor_set-MAX_NUM_FORMS': '', # the max number of forms
+...     'bookwithoptionalalteditor_set-0-author': '1',
+...     'bookwithoptionalalteditor_set-0-title': 'Les Fleurs du Mal',
+...     'bookwithoptionalalteditor_set-1-author': '1',
+...     'bookwithoptionalalteditor_set-1-title': 'Les Fleurs du Mal',
+... }
+
+>>> formset = AuthorBooksFormSet4(data, instance=author)
+>>> formset.is_valid()
+True
+
+>>> formset.save()
+[<BookWithOptionalAltEditor: Les Fleurs du Mal>, <BookWithOptionalAltEditor: Les Fleurs du Mal>]
+
+
 # ModelForm with a custom save method in an inline formset ###################
 
 >>> class PoemForm(forms.ModelForm):