import datetime import re from datetime import date from decimal import Decimal from django import forms from django.db import models from django.forms.models import (_get_foreign_key, inlineformset_factory, modelformset_factory, modelformset_factory) from django.test import TestCase from modeltests.model_formsets.models import ( Author, BetterAuthor, Book, BookWithCustomPK, Editor, BookWithOptionalAltEditor, AlternateBook, AuthorMeeting, CustomPrimaryKey, Place, Owner, Location, OwnerProfile, Restaurant, Product, Price, MexicanRestaurant, ClassyMexicanRestaurant, Repository, Revision, Person, Membership, Team, Player, Poet, Poem, Post) class DeletionTests(TestCase): def test_deletion(self): PoetFormSet = modelformset_factory(Poet, can_delete=True) poet = Poet.objects.create(name='test') data = { 'form-TOTAL_FORMS': u'1', 'form-INITIAL_FORMS': u'1', 'form-MAX_NUM_FORMS': u'0', 'form-0-id': str(poet.pk), 'form-0-name': u'test', 'form-0-DELETE': u'on', } formset = PoetFormSet(data, queryset=Poet.objects.all()) formset.save() self.assertTrue(formset.is_valid()) self.assertEqual(Poet.objects.count(), 0) def test_add_form_deletion_when_invalid(self): """ Make sure that an add form that is filled out, but marked for deletion doesn't cause validation errors. """ PoetFormSet = modelformset_factory(Poet, can_delete=True) data = { 'form-TOTAL_FORMS': u'1', 'form-INITIAL_FORMS': u'0', 'form-MAX_NUM_FORMS': u'0', 'form-0-id': u'', 'form-0-name': u'x' * 1000, } formset = PoetFormSet(data, queryset=Poet.objects.all()) # Make sure this form doesn't pass validation. self.assertEqual(formset.is_valid(), False) self.assertEqual(Poet.objects.count(), 0) # Then make sure that it *does* pass validation and delete the object, # even though the data isn't actually valid. data['form-0-DELETE'] = 'on' formset = PoetFormSet(data, queryset=Poet.objects.all()) self.assertEqual(formset.is_valid(), True) formset.save() self.assertEqual(Poet.objects.count(), 0) def test_change_form_deletion_when_invalid(self): """ Make sure that an add form that is filled out, but marked for deletion doesn't cause validation errors. """ PoetFormSet = modelformset_factory(Poet, can_delete=True) poet = Poet.objects.create(name='test') data = { 'form-TOTAL_FORMS': u'1', 'form-INITIAL_FORMS': u'1', 'form-MAX_NUM_FORMS': u'0', 'form-0-id': u'1', 'form-0-name': u'x' * 1000, } formset = PoetFormSet(data, queryset=Poet.objects.all()) # Make sure this form doesn't pass validation. self.assertEqual(formset.is_valid(), False) self.assertEqual(Poet.objects.count(), 1) # Then make sure that it *does* pass validation and delete the object, # even though the data isn't actually valid. data['form-0-DELETE'] = 'on' formset = PoetFormSet(data, queryset=Poet.objects.all()) self.assertEqual(formset.is_valid(), True) formset.save() self.assertEqual(Poet.objects.count(), 0) class ModelFormsetTest(TestCase): def test_simple_save(self): qs = Author.objects.all() AuthorFormSet = modelformset_factory(Author, extra=3) formset = AuthorFormSet(queryset=qs) self.assertEqual(len(formset.forms), 3) self.assertEqual(formset.forms[0].as_p(), '

') self.assertEqual(formset.forms[1].as_p(), '

') self.assertEqual(formset.forms[2].as_p(), '

') data = { 'form-TOTAL_FORMS': '3', # the number of forms rendered 'form-INITIAL_FORMS': '0', # the number of forms with initial data 'form-MAX_NUM_FORMS': '', # the max number of forms 'form-0-name': 'Charles Baudelaire', 'form-1-name': 'Arthur Rimbaud', 'form-2-name': '', } formset = AuthorFormSet(data=data, queryset=qs) self.assertTrue(formset.is_valid()) saved = formset.save() self.assertEqual(len(saved), 2) author1, author2 = saved self.assertEqual(author1, Author.objects.get(name='Charles Baudelaire')) self.assertEqual(author2, Author.objects.get(name='Arthur Rimbaud')) authors = list(Author.objects.order_by('name')) self.assertEqual(authors, [author2, author1]) # Gah! We forgot Paul Verlaine. Let's create a formset to edit the # existing authors with an extra form to add him. We *could* pass in a # queryset to restrict the Author objects we edit, but in this case # we'll use it to display them in alphabetical order by name. qs = Author.objects.order_by('name') AuthorFormSet = modelformset_factory(Author, extra=1, can_delete=False) formset = AuthorFormSet(queryset=qs) self.assertEqual(len(formset.forms), 3) self.assertEqual(formset.forms[0].as_p(), '

' % author2.id) self.assertEqual(formset.forms[1].as_p(), '

' % author1.id) self.assertEqual(formset.forms[2].as_p(), '

') data = { 'form-TOTAL_FORMS': '3', # the number of forms rendered 'form-INITIAL_FORMS': '2', # the number of forms with initial data 'form-MAX_NUM_FORMS': '', # the max number of forms 'form-0-id': str(author2.id), 'form-0-name': 'Arthur Rimbaud', 'form-1-id': str(author1.id), 'form-1-name': 'Charles Baudelaire', 'form-2-name': 'Paul Verlaine', } formset = AuthorFormSet(data=data, queryset=qs) self.assertTrue(formset.is_valid()) # Only changed or new objects are returned from formset.save() saved = formset.save() self.assertEqual(len(saved), 1) author3 = saved[0] self.assertEqual(author3, Author.objects.get(name='Paul Verlaine')) authors = list(Author.objects.order_by('name')) self.assertEqual(authors, [author2, author1, author3]) # This probably shouldn't happen, but it will. If an add form was # marked for deletion, make sure we don't save that form. qs = Author.objects.order_by('name') AuthorFormSet = modelformset_factory(Author, extra=1, can_delete=True) formset = AuthorFormSet(queryset=qs) self.assertEqual(len(formset.forms), 4) self.assertEqual(formset.forms[0].as_p(), '

\n' '

' % author2.id) self.assertEqual(formset.forms[1].as_p(), '

\n' '

' % author1.id) self.assertEqual(formset.forms[2].as_p(), '

\n' '

' % author3.id) self.assertEqual(formset.forms[3].as_p(), '

\n' '

') data = { 'form-TOTAL_FORMS': '4', # the number of forms rendered 'form-INITIAL_FORMS': '3', # the number of forms with initial data 'form-MAX_NUM_FORMS': '', # the max number of forms 'form-0-id': str(author2.id), 'form-0-name': 'Arthur Rimbaud', 'form-1-id': str(author1.id), 'form-1-name': 'Charles Baudelaire', 'form-2-id': str(author3.id), 'form-2-name': 'Paul Verlaine', 'form-3-name': 'Walt Whitman', 'form-3-DELETE': 'on', } formset = AuthorFormSet(data=data, queryset=qs) self.assertTrue(formset.is_valid()) # No objects were changed or saved so nothing will come back. self.assertEqual(formset.save(), []) authors = list(Author.objects.order_by('name')) self.assertEqual(authors, [author2, author1, author3]) # Let's edit a record to ensure save only returns that one record. data = { 'form-TOTAL_FORMS': '4', # the number of forms rendered 'form-INITIAL_FORMS': '3', # the number of forms with initial data 'form-MAX_NUM_FORMS': '', # the max number of forms 'form-0-id': str(author2.id), 'form-0-name': 'Walt Whitman', 'form-1-id': str(author1.id), 'form-1-name': 'Charles Baudelaire', 'form-2-id': str(author3.id), 'form-2-name': 'Paul Verlaine', 'form-3-name': '', 'form-3-DELETE': '', } formset = AuthorFormSet(data=data, queryset=qs) self.assertTrue(formset.is_valid()) # One record has changed. saved = formset.save() self.assertEqual(len(saved), 1) self.assertEqual(saved[0], Author.objects.get(name='Walt Whitman')) def test_commit_false(self): # Test the behavior of commit=False and save_m2m author1 = Author.objects.create(name='Charles Baudelaire') author2 = Author.objects.create(name='Paul Verlaine') author3 = Author.objects.create(name='Walt Whitman') meeting = AuthorMeeting.objects.create(created=date.today()) meeting.authors = Author.objects.all() # create an Author instance to add to the meeting. author4 = Author.objects.create(name=u'John Steinbeck') AuthorMeetingFormSet = modelformset_factory(AuthorMeeting, extra=1, can_delete=True) data = { 'form-TOTAL_FORMS': '2', # the number of forms rendered 'form-INITIAL_FORMS': '1', # the number of forms with initial data 'form-MAX_NUM_FORMS': '', # the max number of forms 'form-0-id': '1', 'form-0-name': '2nd Tuesday of the Week Meeting', 'form-0-authors': [2, 1, 3, 4], 'form-1-name': '', 'form-1-authors': '', 'form-1-DELETE': '', } formset = AuthorMeetingFormSet(data=data, queryset=AuthorMeeting.objects.all()) self.assertTrue(formset.is_valid()) instances = formset.save(commit=False) for instance in instances: instance.created = date.today() instance.save() formset.save_m2m() self.assertQuerysetEqual(instances[0].authors.all(), [ '', '', '', '', ]) def test_max_num(self): # Test the behavior of max_num with model formsets. It should allow # all existing related objects/inlines for a given object to be # displayed, but not allow the creation of new inlines beyond max_num. author1 = Author.objects.create(name='Charles Baudelaire') author2 = Author.objects.create(name='Paul Verlaine') author3 = Author.objects.create(name='Walt Whitman') qs = Author.objects.order_by('name') AuthorFormSet = modelformset_factory(Author, max_num=None, extra=3) formset = AuthorFormSet(queryset=qs) self.assertEqual(len(formset.forms), 6) self.assertEqual(len(formset.extra_forms), 3) AuthorFormSet = modelformset_factory(Author, max_num=4, extra=3) formset = AuthorFormSet(queryset=qs) self.assertEqual(len(formset.forms), 4) self.assertEqual(len(formset.extra_forms), 1) AuthorFormSet = modelformset_factory(Author, max_num=0, extra=3) formset = AuthorFormSet(queryset=qs) self.assertEqual(len(formset.forms), 3) self.assertEqual(len(formset.extra_forms), 0) AuthorFormSet = modelformset_factory(Author, max_num=None) formset = AuthorFormSet(queryset=qs) self.assertQuerysetEqual(formset.get_queryset(), [ '', '', '', ]) AuthorFormSet = modelformset_factory(Author, max_num=0) formset = AuthorFormSet(queryset=qs) self.assertQuerysetEqual(formset.get_queryset(), [ '', '', '', ]) AuthorFormSet = modelformset_factory(Author, max_num=4) formset = AuthorFormSet(queryset=qs) self.assertQuerysetEqual(formset.get_queryset(), [ '', '', '', ]) def test_custom_save_method(self): class PoetForm(forms.ModelForm): def save(self, commit=True): # change the name to "Vladimir Mayakovsky" just to be a jerk. author = super(PoetForm, self).save(commit=False) author.name = u"Vladimir Mayakovsky" if commit: author.save() return author PoetFormSet = modelformset_factory(Poet, form=PoetForm) data = { 'form-TOTAL_FORMS': '3', # the number of forms rendered 'form-INITIAL_FORMS': '0', # the number of forms with initial data 'form-MAX_NUM_FORMS': '', # the max number of forms 'form-0-name': 'Walt Whitman', 'form-1-name': 'Charles Baudelaire', 'form-2-name': '', } qs = Poet.objects.all() formset = PoetFormSet(data=data, queryset=qs) self.assertTrue(formset.is_valid()) poets = formset.save() self.assertEqual(len(poets), 2) poet1, poet2 = poets self.assertEqual(poet1.name, 'Vladimir Mayakovsky') self.assertEqual(poet2.name, 'Vladimir Mayakovsky') def test_model_inheritance(self): BetterAuthorFormSet = modelformset_factory(BetterAuthor) formset = BetterAuthorFormSet() self.assertEqual(len(formset.forms), 1) self.assertEqual(formset.forms[0].as_p(), '

\n' '

') data = { 'form-TOTAL_FORMS': '1', # the number of forms rendered 'form-INITIAL_FORMS': '0', # the number of forms with initial data 'form-MAX_NUM_FORMS': '', # the max number of forms 'form-0-author_ptr': '', 'form-0-name': 'Ernest Hemingway', 'form-0-write_speed': '10', } formset = BetterAuthorFormSet(data) self.assertTrue(formset.is_valid()) saved = formset.save() self.assertEqual(len(saved), 1) author1, = saved self.assertEqual(author1, BetterAuthor.objects.get(name='Ernest Hemingway')) hemingway_id = BetterAuthor.objects.get(name="Ernest Hemingway").pk formset = BetterAuthorFormSet() self.assertEqual(len(formset.forms), 2) self.assertEqual(formset.forms[0].as_p(), '

\n' '

' % hemingway_id) self.assertEqual(formset.forms[1].as_p(), '

\n' '

') data = { 'form-TOTAL_FORMS': '2', # the number of forms rendered 'form-INITIAL_FORMS': '1', # the number of forms with initial data 'form-MAX_NUM_FORMS': '', # the max number of forms 'form-0-author_ptr': hemingway_id, 'form-0-name': 'Ernest Hemingway', 'form-0-write_speed': '10', 'form-1-author_ptr': '', 'form-1-name': '', 'form-1-write_speed': '', } formset = BetterAuthorFormSet(data) self.assertTrue(formset.is_valid()) self.assertEqual(formset.save(), []) def test_inline_formsets(self): # We can also create a formset that is tied to a parent model. This is # how the admin system's edit inline functionality works. AuthorBooksFormSet = inlineformset_factory(Author, Book, can_delete=False, extra=3) author = Author.objects.create(name='Charles Baudelaire') formset = AuthorBooksFormSet(instance=author) self.assertEqual(len(formset.forms), 3) self.assertEqual(formset.forms[0].as_p(), '

' % author.id) self.assertEqual(formset.forms[1].as_p(), '

' % author.id) self.assertEqual(formset.forms[2].as_p(), '

' % author.id) data = { 'book_set-TOTAL_FORMS': '3', # the number of forms rendered 'book_set-INITIAL_FORMS': '0', # the number of forms with initial data 'book_set-MAX_NUM_FORMS': '', # the max number of forms 'book_set-0-title': 'Les Fleurs du Mal', 'book_set-1-title': '', 'book_set-2-title': '', } formset = AuthorBooksFormSet(data, instance=author) self.assertTrue(formset.is_valid()) saved = formset.save() self.assertEqual(len(saved), 1) book1, = saved self.assertEqual(book1, Book.objects.get(title='Les Fleurs du Mal')) self.assertQuerysetEqual(author.book_set.all(), ['']) # Now that we've added a book to Charles Baudelaire, let's try adding # another one. This time though, an edit form will be available for # every existing book. AuthorBooksFormSet = inlineformset_factory(Author, Book, can_delete=False, extra=2) author = Author.objects.get(name='Charles Baudelaire') formset = AuthorBooksFormSet(instance=author) self.assertEqual(len(formset.forms), 3) self.assertEqual(formset.forms[0].as_p(), '

' % (author.id, book1.id)) self.assertEqual(formset.forms[1].as_p(), '

' % author.id) self.assertEqual(formset.forms[2].as_p(), '

' % author.id) data = { 'book_set-TOTAL_FORMS': '3', # the number of forms rendered 'book_set-INITIAL_FORMS': '1', # the number of forms with initial data 'book_set-MAX_NUM_FORMS': '', # the max number of forms 'book_set-0-id': '1', 'book_set-0-title': 'Les Fleurs du Mal', 'book_set-1-title': 'Les Paradis Artificiels', 'book_set-2-title': '', } formset = AuthorBooksFormSet(data, instance=author) self.assertTrue(formset.is_valid()) saved = formset.save() self.assertEqual(len(saved), 1) book2, = saved self.assertEqual(book2, Book.objects.get(title='Les Paradis Artificiels')) # As you can see, 'Les Paradis Artificiels' is now a book belonging to # Charles Baudelaire. self.assertQuerysetEqual(author.book_set.order_by('title'), [ '', '', ]) def test_inline_formsets_save_as_new(self): # The save_as_new parameter lets you re-associate the data to a new # instance. This is used in the admin for save_as functionality. AuthorBooksFormSet = inlineformset_factory(Author, Book, can_delete=False, extra=2) author = Author.objects.create(name='Charles Baudelaire') data = { 'book_set-TOTAL_FORMS': '3', # the number of forms rendered 'book_set-INITIAL_FORMS': '2', # the number of forms with initial data 'book_set-MAX_NUM_FORMS': '', # the max number of forms 'book_set-0-id': '1', 'book_set-0-title': 'Les Fleurs du Mal', 'book_set-1-id': '2', 'book_set-1-title': 'Les Paradis Artificiels', 'book_set-2-title': '', } formset = AuthorBooksFormSet(data, instance=Author(), save_as_new=True) self.assertTrue(formset.is_valid()) new_author = Author.objects.create(name='Charles Baudelaire') formset = AuthorBooksFormSet(data, instance=new_author, save_as_new=True) saved = formset.save() self.assertEqual(len(saved), 2) book1, book2 = saved self.assertEqual(book1.title, 'Les Fleurs du Mal') self.assertEqual(book2.title, 'Les Paradis Artificiels') # Test using a custom prefix on an inline formset. formset = AuthorBooksFormSet(prefix="test") self.assertEqual(len(formset.forms), 2) self.assertEqual(formset.forms[0].as_p(), '

') self.assertEqual(formset.forms[1].as_p(), '

') def test_inline_formsets_with_custom_pk(self): # Test inline formsets where the inline-edited object has a custom # primary key that is not the fk to the parent object. AuthorBooksFormSet2 = inlineformset_factory(Author, BookWithCustomPK, can_delete=False, extra=1) author = Author.objects.create(pk=1, name='Charles Baudelaire') formset = AuthorBooksFormSet2(instance=author) self.assertEqual(len(formset.forms), 1) self.assertEqual(formset.forms[0].as_p(), '

\n' '

') data = { 'bookwithcustompk_set-TOTAL_FORMS': '1', # the number of forms rendered 'bookwithcustompk_set-INITIAL_FORMS': '0', # the number of forms with initial data 'bookwithcustompk_set-MAX_NUM_FORMS': '', # the max number of forms 'bookwithcustompk_set-0-my_pk': '77777', 'bookwithcustompk_set-0-title': 'Les Fleurs du Mal', } formset = AuthorBooksFormSet2(data, instance=author) self.assertTrue(formset.is_valid()) saved = formset.save() self.assertEqual(len(saved), 1) book1, = saved self.assertEqual(book1.pk, 77777) book1 = author.bookwithcustompk_set.get() self.assertEqual(book1.title, 'Les Fleurs du Mal') def test_inline_formsets_with_multi_table_inheritance(self): # Test inline formsets where the inline-edited object uses multi-table # inheritance, thus has a non AutoField yet auto-created primary key. AuthorBooksFormSet3 = inlineformset_factory(Author, AlternateBook, can_delete=False, extra=1) author = Author.objects.create(pk=1, name='Charles Baudelaire') formset = AuthorBooksFormSet3(instance=author) self.assertEqual(len(formset.forms), 1) self.assertEqual(formset.forms[0].as_p(), '

\n' '

') data = { 'alternatebook_set-TOTAL_FORMS': '1', # the number of forms rendered 'alternatebook_set-INITIAL_FORMS': '0', # the number of forms with initial data 'alternatebook_set-MAX_NUM_FORMS': '', # the max number of forms 'alternatebook_set-0-title': 'Flowers of Evil', 'alternatebook_set-0-notes': 'English translation of Les Fleurs du Mal' } formset = AuthorBooksFormSet3(data, instance=author) self.assertTrue(formset.is_valid()) saved = formset.save() self.assertEqual(len(saved), 1) book1, = saved self.assertEqual(book1.title, 'Flowers of Evil') self.assertEqual(book1.notes, '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) 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) self.assertTrue(formset.is_valid()) saved = formset.save() self.assertEqual(len(saved), 2) book1, book2 = saved self.assertEqual(book1.author_id, 1) self.assertEqual(book1.title, 'Les Fleurs du Mal') self.assertEqual(book2.author_id, 1) self.assertEqual(book2.title, 'Les Fleurs du Mal') def test_inline_formsets_with_custom_save_method(self): AuthorBooksFormSet = inlineformset_factory(Author, Book, can_delete=False, extra=2) author = Author.objects.create(pk=1, name='Charles Baudelaire') book1 = Book.objects.create(pk=1, author=author, title='Les Paradis Artificiels') book2 = Book.objects.create(pk=2, author=author, title='Les Fleurs du Mal') book3 = Book.objects.create(pk=3, author=author, title='Flowers of Evil') class PoemForm(forms.ModelForm): def save(self, commit=True): # change the name to "Brooklyn Bridge" just to be a jerk. poem = super(PoemForm, self).save(commit=False) poem.name = u"Brooklyn Bridge" if commit: poem.save() return poem PoemFormSet = inlineformset_factory(Poet, Poem, form=PoemForm) data = { 'poem_set-TOTAL_FORMS': '3', # the number of forms rendered 'poem_set-INITIAL_FORMS': '0', # the number of forms with initial data 'poem_set-MAX_NUM_FORMS': '', # the max number of forms 'poem_set-0-name': 'The Cloud in Trousers', 'poem_set-1-name': 'I', 'poem_set-2-name': '', } poet = Poet.objects.create(name='Vladimir Mayakovsky') formset = PoemFormSet(data=data, instance=poet) self.assertTrue(formset.is_valid()) saved = formset.save() self.assertEqual(len(saved), 2) poem1, poem2 = saved self.assertEqual(poem1.name, 'Brooklyn Bridge') self.assertEqual(poem2.name, 'Brooklyn Bridge') # We can provide a custom queryset to our InlineFormSet: custom_qs = Book.objects.order_by('-title') formset = AuthorBooksFormSet(instance=author, queryset=custom_qs) self.assertEqual(len(formset.forms), 5) self.assertEqual(formset.forms[0].as_p(), '

') self.assertEqual(formset.forms[1].as_p(), '

') self.assertEqual(formset.forms[2].as_p(), '

') self.assertEqual(formset.forms[3].as_p(), '

') self.assertEqual(formset.forms[4].as_p(), '

') data = { 'book_set-TOTAL_FORMS': '5', # the number of forms rendered 'book_set-INITIAL_FORMS': '3', # the number of forms with initial data 'book_set-MAX_NUM_FORMS': '', # the max number of forms 'book_set-0-id': str(book1.id), 'book_set-0-title': 'Les Paradis Artificiels', 'book_set-1-id': str(book2.id), 'book_set-1-title': 'Les Fleurs du Mal', 'book_set-2-id': str(book3.id), 'book_set-2-title': 'Flowers of Evil', 'book_set-3-title': 'Revue des deux mondes', 'book_set-4-title': '', } formset = AuthorBooksFormSet(data, instance=author, queryset=custom_qs) self.assertTrue(formset.is_valid()) custom_qs = Book.objects.filter(title__startswith='F') formset = AuthorBooksFormSet(instance=author, queryset=custom_qs) self.assertEqual(formset.forms[0].as_p(), '

') self.assertEqual(formset.forms[1].as_p(), '

') self.assertEqual(formset.forms[2].as_p(), '

') data = { 'book_set-TOTAL_FORMS': '3', # the number of forms rendered 'book_set-INITIAL_FORMS': '1', # the number of forms with initial data 'book_set-MAX_NUM_FORMS': '', # the max number of forms 'book_set-0-id': str(book3.id), 'book_set-0-title': 'Flowers of Evil', 'book_set-1-title': 'Revue des deux mondes', 'book_set-2-title': '', } formset = AuthorBooksFormSet(data, instance=author, queryset=custom_qs) self.assertTrue(formset.is_valid()) def test_custom_pk(self): # We need to ensure that it is displayed CustomPrimaryKeyFormSet = modelformset_factory(CustomPrimaryKey) formset = CustomPrimaryKeyFormSet() self.assertEqual(len(formset.forms), 1) self.assertEqual(formset.forms[0].as_p(), '

\n' '

') # Custom primary keys with ForeignKey, OneToOneField and AutoField ############ place = Place.objects.create(pk=1, name=u'Giordanos', city=u'Chicago') FormSet = inlineformset_factory(Place, Owner, extra=2, can_delete=False) formset = FormSet(instance=place) self.assertEqual(len(formset.forms), 2) self.assertEqual(formset.forms[0].as_p(), '

') self.assertEqual(formset.forms[1].as_p(), '

') data = { 'owner_set-TOTAL_FORMS': '2', 'owner_set-INITIAL_FORMS': '0', 'owner_set-MAX_NUM_FORMS': '', 'owner_set-0-auto_id': '', 'owner_set-0-name': u'Joe Perry', 'owner_set-1-auto_id': '', 'owner_set-1-name': '', } formset = FormSet(data, instance=place) self.assertTrue(formset.is_valid()) saved = formset.save() self.assertEqual(len(saved), 1) owner, = saved self.assertEqual(owner.name, 'Joe Perry') self.assertEqual(owner.place.name, 'Giordanos') formset = FormSet(instance=place) self.assertEqual(len(formset.forms), 3) self.assertEqual(formset.forms[0].as_p(), '

') self.assertEqual(formset.forms[1].as_p(), '

') self.assertEqual(formset.forms[2].as_p(), '

') data = { 'owner_set-TOTAL_FORMS': '3', 'owner_set-INITIAL_FORMS': '1', 'owner_set-MAX_NUM_FORMS': '', 'owner_set-0-auto_id': u'1', 'owner_set-0-name': u'Joe Perry', 'owner_set-1-auto_id': '', 'owner_set-1-name': u'Jack Berry', 'owner_set-2-auto_id': '', 'owner_set-2-name': '', } formset = FormSet(data, instance=place) self.assertTrue(formset.is_valid()) saved = formset.save() self.assertEqual(len(saved), 1) owner, = saved self.assertEqual(owner.name, 'Jack Berry') self.assertEqual(owner.place.name, 'Giordanos') # Ensure a custom primary key that is a ForeignKey or OneToOneField get rendered for the user to choose. FormSet = modelformset_factory(OwnerProfile) formset = FormSet() self.assertEqual(formset.forms[0].as_p(), '

\n' '

') owner = Owner.objects.get(name=u'Joe Perry') FormSet = inlineformset_factory(Owner, OwnerProfile, max_num=1, can_delete=False) self.assertEqual(FormSet.max_num, 1) formset = FormSet(instance=owner) self.assertEqual(len(formset.forms), 1) self.assertEqual(formset.forms[0].as_p(), '

') data = { 'ownerprofile-TOTAL_FORMS': '1', 'ownerprofile-INITIAL_FORMS': '0', 'ownerprofile-MAX_NUM_FORMS': '1', 'ownerprofile-0-owner': '', 'ownerprofile-0-age': u'54', } formset = FormSet(data, instance=owner) self.assertTrue(formset.is_valid()) saved = formset.save() self.assertEqual(len(saved), 1) profile1, = saved self.assertEqual(profile1.owner, owner) self.assertEqual(profile1.age, 54) formset = FormSet(instance=owner) self.assertEqual(len(formset.forms), 1) self.assertEqual(formset.forms[0].as_p(), '

') data = { 'ownerprofile-TOTAL_FORMS': '1', 'ownerprofile-INITIAL_FORMS': '1', 'ownerprofile-MAX_NUM_FORMS': '1', 'ownerprofile-0-owner': u'1', 'ownerprofile-0-age': u'55', } formset = FormSet(data, instance=owner) self.assertTrue(formset.is_valid()) saved = formset.save() self.assertEqual(len(saved), 1) profile1, = saved self.assertEqual(profile1.owner, owner) self.assertEqual(profile1.age, 55) def test_unique_true_enforces_max_num_one(self): # ForeignKey with unique=True should enforce max_num=1 place = Place.objects.create(pk=1, name=u'Giordanos', city=u'Chicago') FormSet = inlineformset_factory(Place, Location, can_delete=False) self.assertEqual(FormSet.max_num, 1) formset = FormSet(instance=place) self.assertEqual(len(formset.forms), 1) self.assertEqual(formset.forms[0].as_p(), '

\n' '

') def test_foreign_keys_in_parents(self): self.assertEqual(type(_get_foreign_key(Restaurant, Owner)), models.ForeignKey) self.assertEqual(type(_get_foreign_key(MexicanRestaurant, Owner)), models.ForeignKey) def test_unique_validation(self): FormSet = modelformset_factory(Product, extra=1) data = { 'form-TOTAL_FORMS': '1', 'form-INITIAL_FORMS': '0', 'form-MAX_NUM_FORMS': '', 'form-0-slug': 'car-red', } formset = FormSet(data) self.assertTrue(formset.is_valid()) saved = formset.save() self.assertEqual(len(saved), 1) product1, = saved self.assertEqual(product1.slug, 'car-red') data = { 'form-TOTAL_FORMS': '1', 'form-INITIAL_FORMS': '0', 'form-MAX_NUM_FORMS': '', 'form-0-slug': 'car-red', } formset = FormSet(data) self.assertFalse(formset.is_valid()) self.assertEqual(formset.errors, [{'slug': [u'Product with this Slug already exists.']}]) def test_unique_together_validation(self): FormSet = modelformset_factory(Price, extra=1) data = { 'form-TOTAL_FORMS': '1', 'form-INITIAL_FORMS': '0', 'form-MAX_NUM_FORMS': '', 'form-0-price': u'12.00', 'form-0-quantity': '1', } formset = FormSet(data) self.assertTrue(formset.is_valid()) saved = formset.save() self.assertEqual(len(saved), 1) price1, = saved self.assertEqual(price1.price, Decimal('12.00')) self.assertEqual(price1.quantity, 1) data = { 'form-TOTAL_FORMS': '1', 'form-INITIAL_FORMS': '0', 'form-MAX_NUM_FORMS': '', 'form-0-price': u'12.00', 'form-0-quantity': '1', } formset = FormSet(data) self.assertFalse(formset.is_valid()) self.assertEqual(formset.errors, [{'__all__': [u'Price with this Price and Quantity already exists.']}]) def test_unique_together_with_inlineformset_factory(self): # Also see bug #8882. repository = Repository.objects.create(name=u'Test Repo') FormSet = inlineformset_factory(Repository, Revision, extra=1) data = { 'revision_set-TOTAL_FORMS': '1', 'revision_set-INITIAL_FORMS': '0', 'revision_set-MAX_NUM_FORMS': '', 'revision_set-0-repository': repository.pk, 'revision_set-0-revision': '146239817507f148d448db38840db7c3cbf47c76', 'revision_set-0-DELETE': '', } formset = FormSet(data, instance=repository) self.assertTrue(formset.is_valid()) saved = formset.save() self.assertEqual(len(saved), 1) revision1, = saved self.assertEqual(revision1.repository, repository) self.assertEqual(revision1.revision, '146239817507f148d448db38840db7c3cbf47c76') # attempt to save the same revision against against the same repo. data = { 'revision_set-TOTAL_FORMS': '1', 'revision_set-INITIAL_FORMS': '0', 'revision_set-MAX_NUM_FORMS': '', 'revision_set-0-repository': repository.pk, 'revision_set-0-revision': '146239817507f148d448db38840db7c3cbf47c76', 'revision_set-0-DELETE': '', } formset = FormSet(data, instance=repository) self.assertFalse(formset.is_valid()) self.assertEqual(formset.errors, [{'__all__': [u'Revision with this Repository and Revision already exists.']}]) # unique_together with inlineformset_factory with overridden form fields # Also see #9494 FormSet = inlineformset_factory(Repository, Revision, fields=('revision',), extra=1) data = { 'revision_set-TOTAL_FORMS': '1', 'revision_set-INITIAL_FORMS': '0', 'revision_set-MAX_NUM_FORMS': '', 'revision_set-0-repository': repository.pk, 'revision_set-0-revision': '146239817507f148d448db38840db7c3cbf47c76', 'revision_set-0-DELETE': '', } formset = FormSet(data, instance=repository) self.assertFalse(formset.is_valid()) def test_callable_defaults(self): # Use of callable defaults (see bug #7975). person = Person.objects.create(name='Ringo') FormSet = inlineformset_factory(Person, Membership, can_delete=False, extra=1) formset = FormSet(instance=person) # Django will render a hidden field for model fields that have a callable # default. This is required to ensure the value is tested for change correctly # when determine what extra forms have changed to save. self.assertEqual(len(formset.forms), 1) # this formset only has one form form = formset.forms[0] now = form.fields['date_joined'].initial() result = form.as_p() result = re.sub(r'\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}(?:\.\d+)?', '__DATETIME__', result) self.assertEqual(result, '

\n' '

') # test for validation with callable defaults. Validations rely on hidden fields data = { 'membership_set-TOTAL_FORMS': '1', 'membership_set-INITIAL_FORMS': '0', 'membership_set-MAX_NUM_FORMS': '', 'membership_set-0-date_joined': unicode(now.strftime('%Y-%m-%d %H:%M:%S')), 'initial-membership_set-0-date_joined': unicode(now.strftime('%Y-%m-%d %H:%M:%S')), 'membership_set-0-karma': '', } formset = FormSet(data, instance=person) self.assertTrue(formset.is_valid()) # now test for when the data changes one_day_later = now + datetime.timedelta(days=1) filled_data = { 'membership_set-TOTAL_FORMS': '1', 'membership_set-INITIAL_FORMS': '0', 'membership_set-MAX_NUM_FORMS': '', 'membership_set-0-date_joined': unicode(one_day_later.strftime('%Y-%m-%d %H:%M:%S')), 'initial-membership_set-0-date_joined': unicode(now.strftime('%Y-%m-%d %H:%M:%S')), 'membership_set-0-karma': '', } formset = FormSet(filled_data, instance=person) self.assertFalse(formset.is_valid()) # now test with split datetime fields class MembershipForm(forms.ModelForm): date_joined = forms.SplitDateTimeField(initial=now) class Meta: model = Membership def __init__(self, **kwargs): super(MembershipForm, self).__init__(**kwargs) self.fields['date_joined'].widget = forms.SplitDateTimeWidget() FormSet = inlineformset_factory(Person, Membership, form=MembershipForm, can_delete=False, extra=1) data = { 'membership_set-TOTAL_FORMS': '1', 'membership_set-INITIAL_FORMS': '0', 'membership_set-MAX_NUM_FORMS': '', 'membership_set-0-date_joined_0': unicode(now.strftime('%Y-%m-%d')), 'membership_set-0-date_joined_1': unicode(now.strftime('%H:%M:%S')), 'initial-membership_set-0-date_joined': unicode(now.strftime('%Y-%m-%d %H:%M:%S')), 'membership_set-0-karma': '', } formset = FormSet(data, instance=person) self.assertTrue(formset.is_valid()) def test_inlineformset_factory_with_null_fk(self): # inlineformset_factory tests with fk having null=True. see #9462. # create some data that will exbit the issue team = Team.objects.create(name=u"Red Vipers") Player(name="Timmy").save() Player(name="Bobby", team=team).save() PlayerInlineFormSet = inlineformset_factory(Team, Player) formset = PlayerInlineFormSet() self.assertQuerysetEqual(formset.get_queryset(), []) formset = PlayerInlineFormSet(instance=team) players = formset.get_queryset() self.assertEqual(len(players), 1) player1, = players self.assertEqual(player1.team, team) self.assertEqual(player1.name, 'Bobby') def test_model_formset_with_custom_pk(self): # a formset for a Model that has a custom primary key that still needs to be # added to the formset automatically FormSet = modelformset_factory(ClassyMexicanRestaurant, fields=["tacos_are_yummy"]) self.assertEqual(sorted(FormSet().forms[0].fields.keys()), ['restaurant', 'tacos_are_yummy']) def test_prevent_duplicates_from_with_the_same_formset(self): FormSet = modelformset_factory(Product, extra=2) data = { 'form-TOTAL_FORMS': 2, 'form-INITIAL_FORMS': 0, 'form-MAX_NUM_FORMS': '', 'form-0-slug': 'red_car', 'form-1-slug': 'red_car', } formset = FormSet(data) self.assertFalse(formset.is_valid()) self.assertEqual(formset._non_form_errors, [u'Please correct the duplicate data for slug.']) FormSet = modelformset_factory(Price, extra=2) data = { 'form-TOTAL_FORMS': 2, 'form-INITIAL_FORMS': 0, 'form-MAX_NUM_FORMS': '', 'form-0-price': '25', 'form-0-quantity': '7', 'form-1-price': '25', 'form-1-quantity': '7', } formset = FormSet(data) self.assertFalse(formset.is_valid()) self.assertEqual(formset._non_form_errors, [u'Please correct the duplicate data for price and quantity, which must be unique.']) # Only the price field is specified, this should skip any unique checks since # the unique_together is not fulfilled. This will fail with a KeyError if broken. FormSet = modelformset_factory(Price, fields=("price",), extra=2) data = { 'form-TOTAL_FORMS': '2', 'form-INITIAL_FORMS': '0', 'form-MAX_NUM_FORMS': '', 'form-0-price': '24', 'form-1-price': '24', } formset = FormSet(data) self.assertTrue(formset.is_valid()) FormSet = inlineformset_factory(Author, Book, extra=0) author = Author.objects.create(pk=1, name='Charles Baudelaire') book1 = Book.objects.create(pk=1, author=author, title='Les Paradis Artificiels') book2 = Book.objects.create(pk=2, author=author, title='Les Fleurs du Mal') book3 = Book.objects.create(pk=3, author=author, title='Flowers of Evil') book_ids = author.book_set.order_by('id').values_list('id', flat=True) data = { 'book_set-TOTAL_FORMS': '2', 'book_set-INITIAL_FORMS': '2', 'book_set-MAX_NUM_FORMS': '', 'book_set-0-title': 'The 2008 Election', 'book_set-0-author': str(author.id), 'book_set-0-id': str(book_ids[0]), 'book_set-1-title': 'The 2008 Election', 'book_set-1-author': str(author.id), 'book_set-1-id': str(book_ids[1]), } formset = FormSet(data=data, instance=author) self.assertFalse(formset.is_valid()) self.assertEqual(formset._non_form_errors, [u'Please correct the duplicate data for title.']) self.assertEqual(formset.errors, [{}, {'__all__': [u'Please correct the duplicate values below.']}]) FormSet = modelformset_factory(Post, extra=2) data = { 'form-TOTAL_FORMS': '2', 'form-INITIAL_FORMS': '0', 'form-MAX_NUM_FORMS': '', 'form-0-title': 'blah', 'form-0-slug': 'Morning', 'form-0-subtitle': 'foo', 'form-0-posted': '2009-01-01', 'form-1-title': 'blah', 'form-1-slug': 'Morning in Prague', 'form-1-subtitle': 'rawr', 'form-1-posted': '2009-01-01' } formset = FormSet(data) self.assertFalse(formset.is_valid()) self.assertEqual(formset._non_form_errors, [u'Please correct the duplicate data for title which must be unique for the date in posted.']) self.assertEqual(formset.errors, [{}, {'__all__': [u'Please correct the duplicate values below.']}]) data = { 'form-TOTAL_FORMS': '2', 'form-INITIAL_FORMS': '0', 'form-MAX_NUM_FORMS': '', 'form-0-title': 'foo', 'form-0-slug': 'Morning in Prague', 'form-0-subtitle': 'foo', 'form-0-posted': '2009-01-01', 'form-1-title': 'blah', 'form-1-slug': 'Morning in Prague', 'form-1-subtitle': 'rawr', 'form-1-posted': '2009-08-02' } formset = FormSet(data) self.assertFalse(formset.is_valid()) self.assertEqual(formset._non_form_errors, [u'Please correct the duplicate data for slug which must be unique for the year in posted.']) data = { 'form-TOTAL_FORMS': '2', 'form-INITIAL_FORMS': '0', 'form-MAX_NUM_FORMS': '', 'form-0-title': 'foo', 'form-0-slug': 'Morning in Prague', 'form-0-subtitle': 'rawr', 'form-0-posted': '2008-08-01', 'form-1-title': 'blah', 'form-1-slug': 'Prague', 'form-1-subtitle': 'rawr', 'form-1-posted': '2009-08-02' } formset = FormSet(data) self.assertFalse(formset.is_valid()) self.assertEqual(formset._non_form_errors, [u'Please correct the duplicate data for subtitle which must be unique for the month in posted.'])