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+from __future__ import absolute_import, unicode_literals
+
+import datetime
+import os
+from decimal import Decimal
+
+from django import forms
+from django.core.files.uploadedfile import SimpleUploadedFile
+from django.core.validators import ValidationError
+from django.db import connection
+from django.db.models.query import EmptyQuerySet
+from django.forms.models import model_to_dict
+from django.utils._os import upath
+from django.utils.unittest import skipUnless
+from django.test import TestCase
+from django.utils import six
+
+from .models import (Article, ArticleStatus, BetterWriter, BigInt, Book,
+ Category, CommaSeparatedInteger, CustomFieldForExclusionModel, DerivedBook,
+ DerivedPost, ExplicitPK, FlexibleDatePost, ImprovedArticle,
+ ImprovedArticleWithParentLink, Inventory, Post, Price,
+ Product, TextFile, Writer, WriterProfile, Colour, ColourfulItem,
+ test_images)
+
+if test_images:
+ from .models import ImageFile, OptionalImageFile
+ class ImageFileForm(forms.ModelForm):
+ class Meta:
+ model = ImageFile
+
+ class OptionalImageFileForm(forms.ModelForm):
+ class Meta:
+ model = OptionalImageFile
+
+class ProductForm(forms.ModelForm):
+ class Meta:
+ model = Product
+
+
+class PriceForm(forms.ModelForm):
+ class Meta:
+ model = Price
+
+
+class BookForm(forms.ModelForm):
+ class Meta:
+ model = Book
+
+
+class DerivedBookForm(forms.ModelForm):
+ class Meta:
+ model = DerivedBook
+
+
+class ExplicitPKForm(forms.ModelForm):
+ class Meta:
+ model = ExplicitPK
+ fields = ('key', 'desc',)
+
+
+class PostForm(forms.ModelForm):
+ class Meta:
+ model = Post
+
+
+class DerivedPostForm(forms.ModelForm):
+ class Meta:
+ model = DerivedPost
+
+
+class CustomWriterForm(forms.ModelForm):
+ name = forms.CharField(required=False)
+
+ class Meta:
+ model = Writer
+
+
+class FlexDatePostForm(forms.ModelForm):
+ class Meta:
+ model = FlexibleDatePost
+
+
+class BaseCategoryForm(forms.ModelForm):
+ class Meta:
+ model = Category
+
+
+class ArticleForm(forms.ModelForm):
+ class Meta:
+ model = Article
+
+
+class ArticleForm(forms.ModelForm):
+ class Meta:
+ model = Article
+
+class PartialArticleForm(forms.ModelForm):
+ class Meta:
+ model = Article
+ fields = ('headline','pub_date')
+
+class RoykoForm(forms.ModelForm):
+ class Meta:
+ model = Writer
+
+class TestArticleForm(forms.ModelForm):
+ class Meta:
+ model = Article
+
+class PartialArticleFormWithSlug(forms.ModelForm):
+ class Meta:
+ model = Article
+ fields=('headline', 'slug', 'pub_date')
+
+class ArticleStatusForm(forms.ModelForm):
+ class Meta:
+ model = ArticleStatus
+
+class InventoryForm(forms.ModelForm):
+ class Meta:
+ model = Inventory
+
+class SelectInventoryForm(forms.Form):
+ items = forms.ModelMultipleChoiceField(Inventory.objects.all(), to_field_name='barcode')
+
+class CustomFieldForExclusionForm(forms.ModelForm):
+ class Meta:
+ model = CustomFieldForExclusionModel
+ fields = ['name', 'markup']
+
+class ShortCategory(forms.ModelForm):
+ name = forms.CharField(max_length=5)
+ slug = forms.CharField(max_length=5)
+ url = forms.CharField(max_length=3)
+
+ class Meta:
+ model = Category
+
+class ImprovedArticleForm(forms.ModelForm):
+ class Meta:
+ model = ImprovedArticle
+
+class ImprovedArticleWithParentLinkForm(forms.ModelForm):
+ class Meta:
+ model = ImprovedArticleWithParentLink
+
+class BetterWriterForm(forms.ModelForm):
+ class Meta:
+ model = BetterWriter
+
+class WriterProfileForm(forms.ModelForm):
+ class Meta:
+ model = WriterProfile
+
+class TextFileForm(forms.ModelForm):
+ class Meta:
+ model = TextFile
+
+class BigIntForm(forms.ModelForm):
+ class Meta:
+ model = BigInt
+
+class ModelFormWithMedia(forms.ModelForm):
+ class Media:
+ js = ('/some/form/javascript',)
+ css = {
+ 'all': ('/some/form/css',)
+ }
+ class Meta:
+ model = TextFile
+
+class CommaSeparatedIntegerForm(forms.ModelForm):
+ class Meta:
+ model = CommaSeparatedInteger
+
+class PriceFormWithoutQuantity(forms.ModelForm):
+ class Meta:
+ model = Price
+ exclude = ('quantity',)
+
+class ColourfulItemForm(forms.ModelForm):
+ class Meta:
+ model = ColourfulItem
+
+
+class ModelFormBaseTest(TestCase):
+ def test_base_form(self):
+ self.assertEqual(list(BaseCategoryForm.base_fields),
+ ['name', 'slug', 'url'])
+
+ def test_extra_fields(self):
+ class ExtraFields(BaseCategoryForm):
+ some_extra_field = forms.BooleanField()
+
+ self.assertEqual(list(ExtraFields.base_fields),
+ ['name', 'slug', 'url', 'some_extra_field'])
+
+ def test_replace_field(self):
+ class ReplaceField(forms.ModelForm):
+ url = forms.BooleanField()
+
+ class Meta:
+ model = Category
+
+ self.assertTrue(isinstance(ReplaceField.base_fields['url'],
+ forms.fields.BooleanField))
+
+ def test_override_field(self):
+ class WriterForm(forms.ModelForm):
+ book = forms.CharField(required=False)
+
+ class Meta:
+ model = Writer
+
+ wf = WriterForm({'name': 'Richard Lockridge'})
+ self.assertTrue(wf.is_valid())
+
+ def test_limit_fields(self):
+ class LimitFields(forms.ModelForm):
+ class Meta:
+ model = Category
+ fields = ['url']
+
+ self.assertEqual(list(LimitFields.base_fields),
+ ['url'])
+
+ def test_exclude_fields(self):
+ class ExcludeFields(forms.ModelForm):
+ class Meta:
+ model = Category
+ exclude = ['url']
+
+ self.assertEqual(list(ExcludeFields.base_fields),
+ ['name', 'slug'])
+
+ def test_confused_form(self):
+ class ConfusedForm(forms.ModelForm):
+ """ Using 'fields' *and* 'exclude'. Not sure why you'd want to do
+ this, but uh, "be liberal in what you accept" and all.
+ """
+ class Meta:
+ model = Category
+ fields = ['name', 'url']
+ exclude = ['url']
+
+ self.assertEqual(list(ConfusedForm.base_fields),
+ ['name'])
+
+ def test_mixmodel_form(self):
+ class MixModelForm(BaseCategoryForm):
+ """ Don't allow more than one 'model' definition in the
+ inheritance hierarchy. Technically, it would generate a valid
+ form, but the fact that the resulting save method won't deal with
+ multiple objects is likely to trip up people not familiar with the
+ mechanics.
+ """
+ class Meta:
+ model = Article
+ # MixModelForm is now an Article-related thing, because MixModelForm.Meta
+ # overrides BaseCategoryForm.Meta.
+
+ self.assertEqual(
+ list(MixModelForm.base_fields),
+ ['headline', 'slug', 'pub_date', 'writer', 'article', 'categories', 'status']
+ )
+
+ def test_article_form(self):
+ self.assertEqual(
+ list(ArticleForm.base_fields),
+ ['headline', 'slug', 'pub_date', 'writer', 'article', 'categories', 'status']
+ )
+
+ def test_bad_form(self):
+ #First class with a Meta class wins...
+ class BadForm(ArticleForm, BaseCategoryForm):
+ pass
+
+ self.assertEqual(
+ list(BadForm.base_fields),
+ ['headline', 'slug', 'pub_date', 'writer', 'article', 'categories', 'status']
+ )
+
+ def test_invalid_meta_model(self):
+ class InvalidModelForm(forms.ModelForm):
+ class Meta:
+ pass # no model
+
+ # Can't create new form
+ with self.assertRaises(ValueError):
+ f = InvalidModelForm()
+
+ # Even if you provide a model instance
+ with self.assertRaises(ValueError):
+ f = InvalidModelForm(instance=Category)
+
+ def test_subcategory_form(self):
+ class SubCategoryForm(BaseCategoryForm):
+ """ Subclassing without specifying a Meta on the class will use
+ the parent's Meta (or the first parent in the MRO if there are
+ multiple parent classes).
+ """
+ pass
+
+ self.assertEqual(list(SubCategoryForm.base_fields),
+ ['name', 'slug', 'url'])
+
+ def test_subclassmeta_form(self):
+ class SomeCategoryForm(forms.ModelForm):
+ checkbox = forms.BooleanField()
+
+ class Meta:
+ model = Category
+
+ class SubclassMeta(SomeCategoryForm):
+ """ We can also subclass the Meta inner class to change the fields
+ list.
+ """
+ class Meta(SomeCategoryForm.Meta):
+ exclude = ['url']
+
+ self.assertHTMLEqual(
+ str(SubclassMeta()),
+ """<tr><th><label for="id_name">Name:</label></th><td><input id="id_name" type="text" name="name" maxlength="20" /></td></tr>
+<tr><th><label for="id_slug">Slug:</label></th><td><input id="id_slug" type="text" name="slug" maxlength="20" /></td></tr>
+<tr><th><label for="id_checkbox">Checkbox:</label></th><td><input type="checkbox" name="checkbox" id="id_checkbox" /></td></tr>"""
+ )
+
+ def test_orderfields_form(self):
+ class OrderFields(forms.ModelForm):
+ class Meta:
+ model = Category
+ fields = ['url', 'name']
+
+ self.assertEqual(list(OrderFields.base_fields),
+ ['url', 'name'])
+ self.assertHTMLEqual(
+ str(OrderFields()),
+ """<tr><th><label for="id_url">The URL:</label></th><td><input id="id_url" type="text" name="url" maxlength="40" /></td></tr>
+<tr><th><label for="id_name">Name:</label></th><td><input id="id_name" type="text" name="name" maxlength="20" /></td></tr>"""
+ )
+
+ def test_orderfields2_form(self):
+ class OrderFields2(forms.ModelForm):
+ class Meta:
+ model = Category
+ fields = ['slug', 'url', 'name']
+ exclude = ['url']
+
+ self.assertEqual(list(OrderFields2.base_fields),
+ ['slug', 'name'])
+
+
+class TestWidgetForm(forms.ModelForm):
+ class Meta:
+ model = Category
+ fields = ['name', 'url', 'slug']
+ widgets = {
+ 'name': forms.Textarea,
+ 'url': forms.TextInput(attrs={'class': 'url'})
+ }
+
+
+
+class TestWidgets(TestCase):
+ def test_base_widgets(self):
+ frm = TestWidgetForm()
+ self.assertHTMLEqual(
+ str(frm['name']),
+ '<textarea id="id_name" rows="10" cols="40" name="name"></textarea>'
+ )
+ self.assertHTMLEqual(
+ str(frm['url']),
+ '<input id="id_url" type="text" class="url" name="url" maxlength="40" />'
+ )
+ self.assertHTMLEqual(
+ str(frm['slug']),
+ '<input id="id_slug" type="text" name="slug" maxlength="20" />'
+ )
+
+
+class IncompleteCategoryFormWithFields(forms.ModelForm):
+ """
+ A form that replaces the model's url field with a custom one. This should
+ prevent the model field's validation from being called.
+ """
+ url = forms.CharField(required=False)
+
+ class Meta:
+ fields = ('name', 'slug')
+ model = Category
+
+class IncompleteCategoryFormWithExclude(forms.ModelForm):
+ """
+ A form that replaces the model's url field with a custom one. This should
+ prevent the model field's validation from being called.
+ """
+ url = forms.CharField(required=False)
+
+ class Meta:
+ exclude = ['url']
+ model = Category
+
+
+class ValidationTest(TestCase):
+ def test_validates_with_replaced_field_not_specified(self):
+ form = IncompleteCategoryFormWithFields(data={'name': 'some name', 'slug': 'some-slug'})
+ assert form.is_valid()
+
+ def test_validates_with_replaced_field_excluded(self):
+ form = IncompleteCategoryFormWithExclude(data={'name': 'some name', 'slug': 'some-slug'})
+ assert form.is_valid()
+
+ def test_notrequired_overrides_notblank(self):
+ form = CustomWriterForm({})
+ assert form.is_valid()
+
+
+
+
+# unique/unique_together validation
+class UniqueTest(TestCase):
+ def setUp(self):
+ self.writer = Writer.objects.create(name='Mike Royko')
+
+ def test_simple_unique(self):
+ form = ProductForm({'slug': 'teddy-bear-blue'})
+ self.assertTrue(form.is_valid())
+ obj = form.save()
+ form = ProductForm({'slug': 'teddy-bear-blue'})
+ self.assertEqual(len(form.errors), 1)
+ self.assertEqual(form.errors['slug'], ['Product with this Slug already exists.'])
+ form = ProductForm({'slug': 'teddy-bear-blue'}, instance=obj)
+ self.assertTrue(form.is_valid())
+
+ def test_unique_together(self):
+ """ModelForm test of unique_together constraint"""
+ form = PriceForm({'price': '6.00', 'quantity': '1'})
+ self.assertTrue(form.is_valid())
+ form.save()
+ form = PriceForm({'price': '6.00', 'quantity': '1'})
+ self.assertFalse(form.is_valid())
+ self.assertEqual(len(form.errors), 1)
+ self.assertEqual(form.errors['__all__'], ['Price with this Price and Quantity already exists.'])
+
+ def test_unique_null(self):
+ title = 'I May Be Wrong But I Doubt It'
+ form = BookForm({'title': title, 'author': self.writer.pk})
+ self.assertTrue(form.is_valid())
+ form.save()
+ form = BookForm({'title': title, 'author': self.writer.pk})
+ self.assertFalse(form.is_valid())
+ self.assertEqual(len(form.errors), 1)
+ self.assertEqual(form.errors['__all__'], ['Book with this Title and Author already exists.'])
+ form = BookForm({'title': title})
+ self.assertTrue(form.is_valid())
+ form.save()
+ form = BookForm({'title': title})
+ self.assertTrue(form.is_valid())
+
+ def test_inherited_unique(self):
+ title = 'Boss'
+ Book.objects.create(title=title, author=self.writer, special_id=1)
+ form = DerivedBookForm({'title': 'Other', 'author': self.writer.pk, 'special_id': '1', 'isbn': '12345'})
+ self.assertFalse(form.is_valid())
+ self.assertEqual(len(form.errors), 1)
+ self.assertEqual(form.errors['special_id'], ['Book with this Special id already exists.'])
+
+ def test_inherited_unique_together(self):
+ title = 'Boss'
+ form = BookForm({'title': title, 'author': self.writer.pk})
+ self.assertTrue(form.is_valid())
+ form.save()
+ form = DerivedBookForm({'title': title, 'author': self.writer.pk, 'isbn': '12345'})
+ self.assertFalse(form.is_valid())
+ self.assertEqual(len(form.errors), 1)
+ self.assertEqual(form.errors['__all__'], ['Book with this Title and Author already exists.'])
+
+ def test_abstract_inherited_unique(self):
+ title = 'Boss'
+ isbn = '12345'
+ dbook = DerivedBook.objects.create(title=title, author=self.writer, isbn=isbn)
+ form = DerivedBookForm({'title': 'Other', 'author': self.writer.pk, 'isbn': isbn})
+ self.assertFalse(form.is_valid())
+ self.assertEqual(len(form.errors), 1)
+ self.assertEqual(form.errors['isbn'], ['Derived book with this Isbn already exists.'])
+
+ def test_abstract_inherited_unique_together(self):
+ title = 'Boss'
+ isbn = '12345'
+ dbook = DerivedBook.objects.create(title=title, author=self.writer, isbn=isbn)
+ form = DerivedBookForm({
+ 'title': 'Other',
+ 'author': self.writer.pk,
+ 'isbn': '9876',
+ 'suffix1': '0',
+ 'suffix2': '0'
+ })
+ self.assertFalse(form.is_valid())
+ self.assertEqual(len(form.errors), 1)
+ self.assertEqual(form.errors['__all__'],
+ ['Derived book with this Suffix1 and Suffix2 already exists.'])
+
+ def test_explicitpk_unspecified(self):
+ """Test for primary_key being in the form and failing validation."""
+ form = ExplicitPKForm({'key': '', 'desc': '' })
+ self.assertFalse(form.is_valid())
+
+ def test_explicitpk_unique(self):
+ """Ensure keys and blank character strings are tested for uniqueness."""
+ form = ExplicitPKForm({'key': 'key1', 'desc': ''})
+ self.assertTrue(form.is_valid())
+ form.save()
+ form = ExplicitPKForm({'key': 'key1', 'desc': ''})
+ self.assertFalse(form.is_valid())
+ self.assertEqual(len(form.errors), 3)
+ self.assertEqual(form.errors['__all__'], ['Explicit pk with this Key and Desc already exists.'])
+ self.assertEqual(form.errors['desc'], ['Explicit pk with this Desc already exists.'])
+ self.assertEqual(form.errors['key'], ['Explicit pk with this Key already exists.'])
+
+ def test_unique_for_date(self):
+ p = Post.objects.create(title="Django 1.0 is released",
+ slug="Django 1.0", subtitle="Finally", posted=datetime.date(2008, 9, 3))
+ form = PostForm({'title': "Django 1.0 is released", 'posted': '2008-09-03'})
+ self.assertFalse(form.is_valid())
+ self.assertEqual(len(form.errors), 1)
+ self.assertEqual(form.errors['title'], ['Title must be unique for Posted date.'])
+ form = PostForm({'title': "Work on Django 1.1 begins", 'posted': '2008-09-03'})
+ self.assertTrue(form.is_valid())
+ form = PostForm({'title': "Django 1.0 is released", 'posted': '2008-09-04'})
+ self.assertTrue(form.is_valid())
+ form = PostForm({'slug': "Django 1.0", 'posted': '2008-01-01'})
+ self.assertFalse(form.is_valid())
+ self.assertEqual(len(form.errors), 1)
+ self.assertEqual(form.errors['slug'], ['Slug must be unique for Posted year.'])
+ form = PostForm({'subtitle': "Finally", 'posted': '2008-09-30'})
+ self.assertFalse(form.is_valid())
+ self.assertEqual(form.errors['subtitle'], ['Subtitle must be unique for Posted month.'])
+ form = PostForm({'subtitle': "Finally", "title": "Django 1.0 is released",
+ "slug": "Django 1.0", 'posted': '2008-09-03'}, instance=p)
+ self.assertTrue(form.is_valid())
+ form = PostForm({'title': "Django 1.0 is released"})
+ self.assertFalse(form.is_valid())
+ self.assertEqual(len(form.errors), 1)
+ self.assertEqual(form.errors['posted'], ['This field is required.'])
+
+ def test_inherited_unique_for_date(self):
+ p = Post.objects.create(title="Django 1.0 is released",
+ slug="Django 1.0", subtitle="Finally", posted=datetime.date(2008, 9, 3))
+ form = DerivedPostForm({'title': "Django 1.0 is released", 'posted': '2008-09-03'})
+ self.assertFalse(form.is_valid())
+ self.assertEqual(len(form.errors), 1)
+ self.assertEqual(form.errors['title'], ['Title must be unique for Posted date.'])
+ form = DerivedPostForm({'title': "Work on Django 1.1 begins", 'posted': '2008-09-03'})
+ self.assertTrue(form.is_valid())
+ form = DerivedPostForm({'title': "Django 1.0 is released", 'posted': '2008-09-04'})
+ self.assertTrue(form.is_valid())
+ form = DerivedPostForm({'slug': "Django 1.0", 'posted': '2008-01-01'})
+ self.assertFalse(form.is_valid())
+ self.assertEqual(len(form.errors), 1)
+ self.assertEqual(form.errors['slug'], ['Slug must be unique for Posted year.'])
+ form = DerivedPostForm({'subtitle': "Finally", 'posted': '2008-09-30'})
+ self.assertFalse(form.is_valid())
+ self.assertEqual(form.errors['subtitle'], ['Subtitle must be unique for Posted month.'])
+ form = DerivedPostForm({'subtitle': "Finally", "title": "Django 1.0 is released",
+ "slug": "Django 1.0", 'posted': '2008-09-03'}, instance=p)
+ self.assertTrue(form.is_valid())
+
+ def test_unique_for_date_with_nullable_date(self):
+ p = FlexibleDatePost.objects.create(title="Django 1.0 is released",
+ slug="Django 1.0", subtitle="Finally", posted=datetime.date(2008, 9, 3))
+
+ form = FlexDatePostForm({'title': "Django 1.0 is released"})
+ self.assertTrue(form.is_valid())
+ form = FlexDatePostForm({'slug': "Django 1.0"})
+ self.assertTrue(form.is_valid())
+ form = FlexDatePostForm({'subtitle': "Finally"})
+ self.assertTrue(form.is_valid())
+ form = FlexDatePostForm({'subtitle': "Finally", "title": "Django 1.0 is released",
+ "slug": "Django 1.0"}, instance=p)
+ self.assertTrue(form.is_valid())
+
+class ModelToDictTests(TestCase):
+ """
+ Tests for forms.models.model_to_dict
+ """
+ def test_model_to_dict_many_to_many(self):
+ categories=[
+ Category(name='TestName1', slug='TestName1', url='url1'),
+ Category(name='TestName2', slug='TestName2', url='url2'),
+ Category(name='TestName3', slug='TestName3', url='url3')
+ ]
+ for c in categories:
+ c.save()
+ writer = Writer(name='Test writer')
+ writer.save()
+
+ art = Article(
+ headline='Test article',
+ slug='test-article',
+ pub_date=datetime.date(1988, 1, 4),
+ writer=writer,
+ article='Hello.'
+ )
+ art.save()
+ for c in categories:
+ art.categories.add(c)
+ art.save()
+
+ with self.assertNumQueries(1):
+ d = model_to_dict(art)
+
+ #Ensure all many-to-many categories appear in model_to_dict
+ for c in categories:
+ self.assertIn(c.pk, d['categories'])
+ #Ensure many-to-many relation appears as a list
+ self.assertIsInstance(d['categories'], list)
+
+class OldFormForXTests(TestCase):
+ def test_base_form(self):
+ self.assertEqual(Category.objects.count(), 0)
+ f = BaseCategoryForm()
+ self.assertHTMLEqual(
+ str(f),
+ """<tr><th><label for="id_name">Name:</label></th><td><input id="id_name" type="text" name="name" maxlength="20" /></td></tr>
+<tr><th><label for="id_slug">Slug:</label></th><td><input id="id_slug" type="text" name="slug" maxlength="20" /></td></tr>
+<tr><th><label for="id_url">The URL:</label></th><td><input id="id_url" type="text" name="url" maxlength="40" /></td></tr>"""
+ )
+ self.assertHTMLEqual(
+ str(f.as_ul()),
+ """<li><label for="id_name">Name:</label> <input id="id_name" type="text" name="name" maxlength="20" /></li>
+<li><label for="id_slug">Slug:</label> <input id="id_slug" type="text" name="slug" maxlength="20" /></li>
+<li><label for="id_url">The URL:</label> <input id="id_url" type="text" name="url" maxlength="40" /></li>"""
+ )
+ self.assertHTMLEqual(
+ str(f["name"]),
+ """<input id="id_name" type="text" name="name" maxlength="20" />""")
+
+ def test_auto_id(self):
+ f = BaseCategoryForm(auto_id=False)
+ self.assertHTMLEqual(
+ str(f.as_ul()),
+ """<li>Name: <input type="text" name="name" maxlength="20" /></li>
+<li>Slug: <input type="text" name="slug" maxlength="20" /></li>
+<li>The URL: <input type="text" name="url" maxlength="40" /></li>"""
+ )
+
+ def test_with_data(self):
+ self.assertEqual(Category.objects.count(), 0)
+ f = BaseCategoryForm({'name': 'Entertainment',
+ 'slug': 'entertainment',
+ 'url': 'entertainment'})
+ self.assertTrue(f.is_valid())
+ self.assertEqual(f.cleaned_data['name'], 'Entertainment')
+ self.assertEqual(f.cleaned_data['slug'], 'entertainment')
+ self.assertEqual(f.cleaned_data['url'], 'entertainment')
+ c1 = f.save()
+ # Testing wether the same object is returned from the
+ # ORM... not the fastest way...
+
+ self.assertEqual(c1, Category.objects.all()[0])
+ self.assertEqual(c1.name, "Entertainment")
+ self.assertEqual(Category.objects.count(), 1)
+
+ f = BaseCategoryForm({'name': "It's a test",
+ 'slug': 'its-test',
+ 'url': 'test'})
+ self.assertTrue(f.is_valid())
+ self.assertEqual(f.cleaned_data['name'], "It's a test")
+ self.assertEqual(f.cleaned_data['slug'], 'its-test')
+ self.assertEqual(f.cleaned_data['url'], 'test')
+ c2 = f.save()
+ # Testing wether the same object is returned from the
+ # ORM... not the fastest way...
+ self.assertEqual(c2, Category.objects.get(pk=c2.pk))
+ self.assertEqual(c2.name, "It's a test")
+ self.assertEqual(Category.objects.count(), 2)
+
+ # If you call save() with commit=False, then it will return an object that
+ # hasn't yet been saved to the database. In this case, it's up to you to call
+ # save() on the resulting model instance.
+ f = BaseCategoryForm({'name': 'Third test', 'slug': 'third-test', 'url': 'third'})
+ self.assertEqual(f.is_valid(), True)
+ self.assertEqual(f.cleaned_data['url'], 'third')
+ self.assertEqual(f.cleaned_data['name'], 'Third test')
+ self.assertEqual(f.cleaned_data['slug'], 'third-test')
+ c3 = f.save(commit=False)
+ self.assertEqual(c3.name, "Third test")
+ self.assertEqual(Category.objects.count(), 2)
+ c3.save()
+ self.assertEqual(Category.objects.count(), 3)
+
+ # If you call save() with invalid data, you'll get a ValueError.
+ f = BaseCategoryForm({'name': '', 'slug': 'not a slug!', 'url': 'foo'})
+ self.assertEqual(f.errors['name'], ['This field is required.'])
+ self.assertEqual(f.errors['slug'], ["Enter a valid 'slug' consisting of letters, numbers, underscores or hyphens."])
+ self.assertEqual(f.cleaned_data, {'url': 'foo'})
+ with self.assertRaises(ValueError):
+ f.save()
+ f = BaseCategoryForm({'name': '', 'slug': '', 'url': 'foo'})
+ with self.assertRaises(ValueError):
+ f.save()
+
+ # Create a couple of Writers.
+ w_royko = Writer(name='Mike Royko')
+ w_royko.save()
+ w_woodward = Writer(name='Bob Woodward')
+ w_woodward.save()
+ # ManyToManyFields are represented by a MultipleChoiceField, ForeignKeys and any
+ # fields with the 'choices' attribute are represented by a ChoiceField.
+ f = ArticleForm(auto_id=False)
+ self.assertHTMLEqual(six.text_type(f), '''<tr><th>Headline:</th><td><input type="text" name="headline" maxlength="50" /></td></tr>
+<tr><th>Slug:</th><td><input type="text" name="slug" maxlength="50" /></td></tr>
+<tr><th>Pub date:</th><td><input type="text" name="pub_date" /></td></tr>
+<tr><th>Writer:</th><td><select name="writer">
+<option value="" selected="selected">---------</option>
+<option value="%s">Bob Woodward</option>
+<option value="%s">Mike Royko</option>
+</select></td></tr>
+<tr><th>Article:</th><td><textarea rows="10" cols="40" name="article"></textarea></td></tr>
+<tr><th>Categories:</th><td><select multiple="multiple" name="categories">
+<option value="%s">Entertainment</option>
+<option value="%s">It&#39;s a test</option>
+<option value="%s">Third test</option>
+</select><br /><span class="helptext"> Hold down "Control", or "Command" on a Mac, to select more than one.</span></td></tr>
+<tr><th>Status:</th><td><select name="status">
+<option value="" selected="selected">---------</option>
+<option value="1">Draft</option>
+<option value="2">Pending</option>
+<option value="3">Live</option>
+</select></td></tr>''' % (w_woodward.pk, w_royko.pk, c1.pk, c2.pk, c3.pk))
+
+ # You can restrict a form to a subset of the complete list of fields
+ # by providing a 'fields' argument. If you try to save a
+ # model created with such a form, you need to ensure that the fields
+ # that are _not_ on the form have default values, or are allowed to have
+ # a value of None. If a field isn't specified on a form, the object created
+ # from the form can't provide a value for that field!
+ f = PartialArticleForm(auto_id=False)
+ self.assertHTMLEqual(six.text_type(f), '''<tr><th>Headline:</th><td><input type="text" name="headline" maxlength="50" /></td></tr>
+<tr><th>Pub date:</th><td><input type="text" name="pub_date" /></td></tr>''')
+
+ # When the ModelForm is passed an instance, that instance's current values are
+ # inserted as 'initial' data in each Field.
+ w = Writer.objects.get(name='Mike Royko')
+ f = RoykoForm(auto_id=False, instance=w)
+ self.assertHTMLEqual(six.text_type(f), '''<tr><th>Name:</th><td><input type="text" name="name" value="Mike Royko" maxlength="50" /><br /><span class="helptext">Use both first and last names.</span></td></tr>''')
+
+ art = Article(
+ headline='Test article',
+ slug='test-article',
+ pub_date=datetime.date(1988, 1, 4),
+ writer=w,
+ article='Hello.'
+ )
+ art.save()
+ art_id_1 = art.id
+ self.assertEqual(art_id_1 is not None, True)
+ f = TestArticleForm(auto_id=False, instance=art)
+ self.assertHTMLEqual(f.as_ul(), '''<li>Headline: <input type="text" name="headline" value="Test article" maxlength="50" /></li>
+<li>Slug: <input type="text" name="slug" value="test-article" maxlength="50" /></li>
+<li>Pub date: <input type="text" name="pub_date" value="1988-01-04" /></li>
+<li>Writer: <select name="writer">
+<option value="">---------</option>
+<option value="%s">Bob Woodward</option>
+<option value="%s" selected="selected">Mike Royko</option>
+</select></li>
+<li>Article: <textarea rows="10" cols="40" name="article">Hello.</textarea></li>
+<li>Categories: <select multiple="multiple" name="categories">
+<option value="%s">Entertainment</option>
+<option value="%s">It&#39;s a test</option>
+<option value="%s">Third test</option>
+</select> <span class="helptext"> Hold down "Control", or "Command" on a Mac, to select more than one.</span></li>
+<li>Status: <select name="status">
+<option value="" selected="selected">---------</option>
+<option value="1">Draft</option>
+<option value="2">Pending</option>
+<option value="3">Live</option>
+</select></li>''' % (w_woodward.pk, w_royko.pk, c1.pk, c2.pk, c3.pk))
+ f = TestArticleForm({
+ 'headline': 'Test headline',
+ 'slug': 'test-headline',
+ 'pub_date': '1984-02-06',
+ 'writer': six.text_type(w_royko.pk),
+ 'article': 'Hello.'
+ }, instance=art)
+ self.assertEqual(f.errors, {})
+ self.assertEqual(f.is_valid(), True)
+ test_art = f.save()
+ self.assertEqual(test_art.id == art_id_1, True)
+ test_art = Article.objects.get(id=art_id_1)
+ self.assertEqual(test_art.headline, 'Test headline')
+ # You can create a form over a subset of the available fields
+ # by specifying a 'fields' argument to form_for_instance.
+ f = PartialArticleFormWithSlug({
+ 'headline': 'New headline',
+ 'slug': 'new-headline',
+ 'pub_date': '1988-01-04'
+ }, auto_id=False, instance=art)
+ self.assertHTMLEqual(f.as_ul(), '''<li>Headline: <input type="text" name="headline" value="New headline" maxlength="50" /></li>
+<li>Slug: <input type="text" name="slug" value="new-headline" maxlength="50" /></li>
+<li>Pub date: <input type="text" name="pub_date" value="1988-01-04" /></li>''')
+ self.assertEqual(f.is_valid(), True)
+ new_art = f.save()
+ self.assertEqual(new_art.id == art_id_1, True)
+ new_art = Article.objects.get(id=art_id_1)
+ self.assertEqual(new_art.headline, 'New headline')
+
+ # Add some categories and test the many-to-many form output.
+ self.assertQuerysetEqual(new_art.categories.all(), [])
+ new_art.categories.add(Category.objects.get(name='Entertainment'))
+ self.assertQuerysetEqual(new_art.categories.all(), ["Entertainment"])
+ f = TestArticleForm(auto_id=False, instance=new_art)
+ self.assertHTMLEqual(f.as_ul(), '''<li>Headline: <input type="text" name="headline" value="New headline" maxlength="50" /></li>
+<li>Slug: <input type="text" name="slug" value="new-headline" maxlength="50" /></li>
+<li>Pub date: <input type="text" name="pub_date" value="1988-01-04" /></li>
+<li>Writer: <select name="writer">
+<option value="">---------</option>
+<option value="%s">Bob Woodward</option>
+<option value="%s" selected="selected">Mike Royko</option>
+</select></li>
+<li>Article: <textarea rows="10" cols="40" name="article">Hello.</textarea></li>
+<li>Categories: <select multiple="multiple" name="categories">
+<option value="%s" selected="selected">Entertainment</option>
+<option value="%s">It&#39;s a test</option>
+<option value="%s">Third test</option>
+</select> <span class="helptext"> Hold down "Control", or "Command" on a Mac, to select more than one.</span></li>
+<li>Status: <select name="status">
+<option value="" selected="selected">---------</option>
+<option value="1">Draft</option>
+<option value="2">Pending</option>
+<option value="3">Live</option>
+</select></li>''' % (w_woodward.pk, w_royko.pk, c1.pk, c2.pk, c3.pk))
+
+ # Initial values can be provided for model forms
+ f = TestArticleForm(
+ auto_id=False,
+ initial={
+ 'headline': 'Your headline here',
+ 'categories': [str(c1.id), str(c2.id)]
+ })
+ self.assertHTMLEqual(f.as_ul(), '''<li>Headline: <input type="text" name="headline" value="Your headline here" maxlength="50" /></li>
+<li>Slug: <input type="text" name="slug" maxlength="50" /></li>
+<li>Pub date: <input type="text" name="pub_date" /></li>
+<li>Writer: <select name="writer">
+<option value="" selected="selected">---------</option>
+<option value="%s">Bob Woodward</option>
+<option value="%s">Mike Royko</option>
+</select></li>
+<li>Article: <textarea rows="10" cols="40" name="article"></textarea></li>
+<li>Categories: <select multiple="multiple" name="categories">
+<option value="%s" selected="selected">Entertainment</option>
+<option value="%s" selected="selected">It&#39;s a test</option>
+<option value="%s">Third test</option>
+</select> <span class="helptext"> Hold down "Control", or "Command" on a Mac, to select more than one.</span></li>
+<li>Status: <select name="status">
+<option value="" selected="selected">---------</option>
+<option value="1">Draft</option>
+<option value="2">Pending</option>
+<option value="3">Live</option>
+</select></li>''' % (w_woodward.pk, w_royko.pk, c1.pk, c2.pk, c3.pk))
+
+ f = TestArticleForm({
+ 'headline': 'New headline',
+ 'slug': 'new-headline',
+ 'pub_date': '1988-01-04',
+ 'writer': six.text_type(w_royko.pk),
+ 'article': 'Hello.',
+ 'categories': [six.text_type(c1.id), six.text_type(c2.id)]
+ }, instance=new_art)
+ new_art = f.save()
+ self.assertEqual(new_art.id == art_id_1, True)
+ new_art = Article.objects.get(id=art_id_1)
+ self.assertQuerysetEqual(new_art.categories.order_by('name'),
+ ["Entertainment", "It's a test"])
+
+ # Now, submit form data with no categories. This deletes the existing categories.
+ f = TestArticleForm({'headline': 'New headline', 'slug': 'new-headline', 'pub_date': '1988-01-04',
+ 'writer': six.text_type(w_royko.pk), 'article': 'Hello.'}, instance=new_art)
+ new_art = f.save()
+ self.assertEqual(new_art.id == art_id_1, True)
+ new_art = Article.objects.get(id=art_id_1)
+ self.assertQuerysetEqual(new_art.categories.all(), [])
+
+ # Create a new article, with categories, via the form.
+ f = ArticleForm({'headline': 'The walrus was Paul', 'slug': 'walrus-was-paul', 'pub_date': '1967-11-01',
+ 'writer': six.text_type(w_royko.pk), 'article': 'Test.', 'categories': [six.text_type(c1.id), six.text_type(c2.id)]})
+ new_art = f.save()
+ art_id_2 = new_art.id
+ self.assertEqual(art_id_2 not in (None, art_id_1), True)
+ new_art = Article.objects.get(id=art_id_2)
+ self.assertQuerysetEqual(new_art.categories.order_by('name'), ["Entertainment", "It's a test"])
+
+ # Create a new article, with no categories, via the form.
+ f = ArticleForm({'headline': 'The walrus was Paul', 'slug': 'walrus-was-paul', 'pub_date': '1967-11-01',
+ 'writer': six.text_type(w_royko.pk), 'article': 'Test.'})
+ new_art = f.save()
+ art_id_3 = new_art.id
+ self.assertEqual(art_id_3 not in (None, art_id_1, art_id_2), True)
+ new_art = Article.objects.get(id=art_id_3)
+ self.assertQuerysetEqual(new_art.categories.all(), [])
+
+ # Create a new article, with categories, via the form, but use commit=False.
+ # The m2m data won't be saved until save_m2m() is invoked on the form.
+ f = ArticleForm({'headline': 'The walrus was Paul', 'slug': 'walrus-was-paul', 'pub_date': '1967-11-01',
+ 'writer': six.text_type(w_royko.pk), 'article': 'Test.', 'categories': [six.text_type(c1.id), six.text_type(c2.id)]})
+ new_art = f.save(commit=False)
+
+ # Manually save the instance
+ new_art.save()
+ art_id_4 = new_art.id
+ self.assertEqual(art_id_4 not in (None, art_id_1, art_id_2, art_id_3), True)
+
+ # The instance doesn't have m2m data yet
+ new_art = Article.objects.get(id=art_id_4)
+ self.assertQuerysetEqual(new_art.categories.all(), [])
+
+ # Save the m2m data on the form
+ f.save_m2m()
+ self.assertQuerysetEqual(new_art.categories.order_by('name'), ["Entertainment", "It's a test"])
+
+ # Here, we define a custom ModelForm. Because it happens to have the same fields as
+ # the Category model, we can just call the form's save() to apply its changes to an
+ # existing Category instance.
+ cat = Category.objects.get(name='Third test')
+ self.assertEqual(cat.name, "Third test")
+ self.assertEqual(cat.id == c3.id, True)
+ form = ShortCategory({'name': 'Third', 'slug': 'third', 'url': '3rd'}, instance=cat)
+ self.assertEqual(form.save().name, 'Third')
+ self.assertEqual(Category.objects.get(id=c3.id).name, 'Third')
+
+ # Here, we demonstrate that choices for a ForeignKey ChoiceField are determined
+ # at runtime, based on the data in the database when the form is displayed, not
+ # the data in the database when the form is instantiated.
+ f = ArticleForm(auto_id=False)
+ self.assertHTMLEqual(f.as_ul(), '''<li>Headline: <input type="text" name="headline" maxlength="50" /></li>
+<li>Slug: <input type="text" name="slug" maxlength="50" /></li>
+<li>Pub date: <input type="text" name="pub_date" /></li>
+<li>Writer: <select name="writer">
+<option value="" selected="selected">---------</option>
+<option value="%s">Bob Woodward</option>
+<option value="%s">Mike Royko</option>
+</select></li>
+<li>Article: <textarea rows="10" cols="40" name="article"></textarea></li>
+<li>Categories: <select multiple="multiple" name="categories">
+<option value="%s">Entertainment</option>
+<option value="%s">It&#39;s a test</option>
+<option value="%s">Third</option>
+</select> <span class="helptext"> Hold down "Control", or "Command" on a Mac, to select more than one.</span></li>
+<li>Status: <select name="status">
+<option value="" selected="selected">---------</option>
+<option value="1">Draft</option>
+<option value="2">Pending</option>
+<option value="3">Live</option>
+</select></li>''' % (w_woodward.pk, w_royko.pk, c1.pk, c2.pk, c3.pk))
+
+ c4 = Category.objects.create(name='Fourth', url='4th')
+ self.assertEqual(c4.name, 'Fourth')
+ w_bernstein = Writer.objects.create(name='Carl Bernstein')
+ self.assertEqual(w_bernstein.name, 'Carl Bernstein')
+ self.assertHTMLEqual(f.as_ul(), '''<li>Headline: <input type="text" name="headline" maxlength="50" /></li>
+<li>Slug: <input type="text" name="slug" maxlength="50" /></li>
+<li>Pub date: <input type="text" name="pub_date" /></li>
+<li>Writer: <select name="writer">
+<option value="" selected="selected">---------</option>
+<option value="%s">Bob Woodward</option>
+<option value="%s">Carl Bernstein</option>
+<option value="%s">Mike Royko</option>
+</select></li>
+<li>Article: <textarea rows="10" cols="40" name="article"></textarea></li>
+<li>Categories: <select multiple="multiple" name="categories">
+<option value="%s">Entertainment</option>
+<option value="%s">It&#39;s a test</option>
+<option value="%s">Third</option>
+<option value="%s">Fourth</option>
+</select> <span class="helptext"> Hold down "Control", or "Command" on a Mac, to select more than one.</span></li>
+<li>Status: <select name="status">
+<option value="" selected="selected">---------</option>
+<option value="1">Draft</option>
+<option value="2">Pending</option>
+<option value="3">Live</option>
+</select></li>''' % (w_woodward.pk, w_bernstein.pk, w_royko.pk, c1.pk, c2.pk, c3.pk, c4.pk))
+
+ # ModelChoiceField ############################################################
+
+ f = forms.ModelChoiceField(Category.objects.all())
+ self.assertEqual(list(f.choices), [
+ ('', '---------'),
+ (c1.pk, 'Entertainment'),
+ (c2.pk, "It's a test"),
+ (c3.pk, 'Third'),
+ (c4.pk, 'Fourth')])
+ self.assertEqual(5, len(f.choices))
+ with self.assertRaises(ValidationError):
+ f.clean('')
+ with self.assertRaises(ValidationError):
+ f.clean(None)
+ with self.assertRaises(ValidationError):
+ f.clean(0)
+ self.assertEqual(f.clean(c3.id).name, 'Third')
+ self.assertEqual(f.clean(c2.id).name, "It's a test")
+
+ # Add a Category object *after* the ModelChoiceField has already been
+ # instantiated. This proves clean() checks the database during clean() rather
+ # than caching it at time of instantiation.
+ c5 = Category.objects.create(name='Fifth', url='5th')
+ self.assertEqual(c5.name, 'Fifth')
+ self.assertEqual(f.clean(c5.id).name, 'Fifth')
+
+ # Delete a Category object *after* the ModelChoiceField has already been
+ # instantiated. This proves clean() checks the database during clean() rather
+ # than caching it at time of instantiation.
+ Category.objects.get(url='5th').delete()
+ with self.assertRaises(ValidationError):
+ f.clean(c5.id)
+
+ f = forms.ModelChoiceField(Category.objects.filter(pk=c1.id), required=False)
+ self.assertEqual(f.clean(''), None)
+ f.clean('')
+ self.assertEqual(f.clean(str(c1.id)).name, "Entertainment")
+ with self.assertRaises(ValidationError):
+ f.clean('100')
+
+ # queryset can be changed after the field is created.
+ f.queryset = Category.objects.exclude(name='Fourth')
+ self.assertEqual(list(f.choices), [
+ ('', '---------'),
+ (c1.pk, 'Entertainment'),
+ (c2.pk, "It's a test"),
+ (c3.pk, 'Third')])
+ self.assertEqual(f.clean(c3.id).name, 'Third')
+ with self.assertRaises(ValidationError):
+ f.clean(c4.id)
+
+ # check that we can safely iterate choices repeatedly
+ gen_one = list(f.choices)
+ gen_two = f.choices
+ self.assertEqual(gen_one[2], (c2.pk, "It's a test"))
+ self.assertEqual(list(gen_two), [
+ ('', '---------'),
+ (c1.pk, 'Entertainment'),
+ (c2.pk, "It's a test"),
+ (c3.pk, 'Third')])
+
+ # check that we can override the label_from_instance method to print custom labels (#4620)
+ f.queryset = Category.objects.all()
+ f.label_from_instance = lambda obj: "category " + str(obj)
+ self.assertEqual(list(f.choices), [
+ ('', '---------'),
+ (c1.pk, 'category Entertainment'),
+ (c2.pk, "category It's a test"),
+ (c3.pk, 'category Third'),
+ (c4.pk, 'category Fourth')])
+
+ # ModelMultipleChoiceField ####################################################
+
+ f = forms.ModelMultipleChoiceField(Category.objects.all())
+ self.assertEqual(list(f.choices), [
+ (c1.pk, 'Entertainment'),
+ (c2.pk, "It's a test"),
+ (c3.pk, 'Third'),
+ (c4.pk, 'Fourth')])
+ with self.assertRaises(ValidationError):
+ f.clean(None)
+ with self.assertRaises(ValidationError):
+ f.clean([])
+ self.assertQuerysetEqual(f.clean([c1.id]), ["Entertainment"])
+ self.assertQuerysetEqual(f.clean([c2.id]), ["It's a test"])
+ self.assertQuerysetEqual(f.clean([str(c1.id)]), ["Entertainment"])
+ self.assertQuerysetEqual(f.clean([str(c1.id), str(c2.id)]), ["Entertainment", "It's a test"],
+ ordered=False)
+ self.assertQuerysetEqual(f.clean([c1.id, str(c2.id)]), ["Entertainment", "It's a test"],
+ ordered=False)
+ self.assertQuerysetEqual(f.clean((c1.id, str(c2.id))), ["Entertainment", "It's a test"],
+ ordered=False)
+ with self.assertRaises(ValidationError):
+ f.clean(['100'])
+ with self.assertRaises(ValidationError):
+ f.clean('hello')
+ with self.assertRaises(ValidationError):
+ f.clean(['fail'])
+
+ # Add a Category object *after* the ModelMultipleChoiceField has already been
+ # instantiated. This proves clean() checks the database during clean() rather
+ # than caching it at time of instantiation.
+ # Note, we are using an id of 1006 here since tests that run before
+ # this may create categories with primary keys up to 6. Use
+ # a number that is will not conflict.
+ c6 = Category.objects.create(id=1006, name='Sixth', url='6th')
+ self.assertEqual(c6.name, 'Sixth')
+ self.assertQuerysetEqual(f.clean([c6.id]), ["Sixth"])
+
+ # Delete a Category object *after* the ModelMultipleChoiceField has already been
+ # instantiated. This proves clean() checks the database during clean() rather
+ # than caching it at time of instantiation.
+ Category.objects.get(url='6th').delete()
+ with self.assertRaises(ValidationError):
+ f.clean([c6.id])
+
+ f = forms.ModelMultipleChoiceField(Category.objects.all(), required=False)
+ self.assertIsInstance(f.clean([]), EmptyQuerySet)
+ self.assertIsInstance(f.clean(()), EmptyQuerySet)
+ with self.assertRaises(ValidationError):
+ f.clean(['10'])
+ with self.assertRaises(ValidationError):
+ f.clean([str(c3.id), '10'])
+ with self.assertRaises(ValidationError):
+ f.clean([str(c1.id), '10'])
+
+ # queryset can be changed after the field is created.
+ f.queryset = Category.objects.exclude(name='Fourth')
+ self.assertEqual(list(f.choices), [
+ (c1.pk, 'Entertainment'),
+ (c2.pk, "It's a test"),
+ (c3.pk, 'Third')])
+ self.assertQuerysetEqual(f.clean([c3.id]), ["Third"])
+ with self.assertRaises(ValidationError):
+ f.clean([c4.id])
+ with self.assertRaises(ValidationError):
+ f.clean([str(c3.id), str(c4.id)])
+
+ f.queryset = Category.objects.all()
+ f.label_from_instance = lambda obj: "multicategory " + str(obj)
+ self.assertEqual(list(f.choices), [
+ (c1.pk, 'multicategory Entertainment'),
+ (c2.pk, "multicategory It's a test"),
+ (c3.pk, 'multicategory Third'),
+ (c4.pk, 'multicategory Fourth')])
+
+ # OneToOneField ###############################################################
+
+ self.assertEqual(list(ImprovedArticleForm.base_fields), ['article'])
+
+ self.assertEqual(list(ImprovedArticleWithParentLinkForm.base_fields), [])
+
+ bw = BetterWriter(name='Joe Better', score=10)
+ bw.save()
+ self.assertEqual(sorted(model_to_dict(bw)),
+ ['id', 'name', 'score', 'writer_ptr'])
+
+ form = BetterWriterForm({'name': 'Some Name', 'score': 12})
+ self.assertEqual(form.is_valid(), True)
+ bw2 = form.save()
+ bw2.delete()
+
+ form = WriterProfileForm()
+ self.assertHTMLEqual(form.as_p(), '''<p><label for="id_writer">Writer:</label> <select name="writer" id="id_writer">
+<option value="" selected="selected">---------</option>
+<option value="%s">Bob Woodward</option>
+<option value="%s">Carl Bernstein</option>
+<option value="%s">Joe Better</option>
+<option value="%s">Mike Royko</option>
+</select></p>
+<p><label for="id_age">Age:</label> <input type="number" name="age" id="id_age" min="0" /></p>''' % (w_woodward.pk, w_bernstein.pk, bw.pk, w_royko.pk))
+
+ data = {
+ 'writer': six.text_type(w_woodward.pk),
+ 'age': '65',
+ }
+ form = WriterProfileForm(data)
+ instance = form.save()
+ self.assertEqual(six.text_type(instance), 'Bob Woodward is 65')
+
+ form = WriterProfileForm(instance=instance)
+ self.assertHTMLEqual(form.as_p(), '''<p><label for="id_writer">Writer:</label> <select name="writer" id="id_writer">
+<option value="">---------</option>
+<option value="%s" selected="selected">Bob Woodward</option>
+<option value="%s">Carl Bernstein</option>
+<option value="%s">Joe Better</option>
+<option value="%s">Mike Royko</option>
+</select></p>
+<p><label for="id_age">Age:</label> <input type="number" name="age" value="65" id="id_age" min="0" /></p>''' % (w_woodward.pk, w_bernstein.pk, bw.pk, w_royko.pk))
+
+ def test_file_field(self):
+ # Test conditions when files is either not given or empty.
+
+ f = TextFileForm(data={'description': 'Assistance'})
+ self.assertEqual(f.is_valid(), False)
+ f = TextFileForm(data={'description': 'Assistance'}, files={})
+ self.assertEqual(f.is_valid(), False)
+
+ # Upload a file and ensure it all works as expected.
+
+ f = TextFileForm(
+ data={'description': 'Assistance'},
+ files={'file': SimpleUploadedFile('test1.txt', b'hello world')})
+ self.assertEqual(f.is_valid(), True)
+ self.assertEqual(type(f.cleaned_data['file']), SimpleUploadedFile)
+ instance = f.save()
+ self.assertEqual(instance.file.name, 'tests/test1.txt')
+
+ instance.file.delete()
+ f = TextFileForm(
+ data={'description': 'Assistance'},
+ files={'file': SimpleUploadedFile('test1.txt', b'hello world')})
+ self.assertEqual(f.is_valid(), True)
+ self.assertEqual(type(f.cleaned_data['file']), SimpleUploadedFile)
+ instance = f.save()
+ self.assertEqual(instance.file.name, 'tests/test1.txt')
+
+ # Check if the max_length attribute has been inherited from the model.
+ f = TextFileForm(
+ data={'description': 'Assistance'},
+ files={'file': SimpleUploadedFile('test-maxlength.txt', b'hello world')})
+ self.assertEqual(f.is_valid(), False)
+
+ # Edit an instance that already has the file defined in the model. This will not
+ # save the file again, but leave it exactly as it is.
+
+ f = TextFileForm(
+ data={'description': 'Assistance'},
+ instance=instance)
+ self.assertEqual(f.is_valid(), True)
+ self.assertEqual(f.cleaned_data['file'].name, 'tests/test1.txt')
+ instance = f.save()
+ self.assertEqual(instance.file.name, 'tests/test1.txt')
+
+ # Delete the current file since this is not done by Django.
+ instance.file.delete()
+
+ # Override the file by uploading a new one.
+
+ f = TextFileForm(
+ data={'description': 'Assistance'},
+ files={'file': SimpleUploadedFile('test2.txt', b'hello world')}, instance=instance)
+ self.assertEqual(f.is_valid(), True)
+ instance = f.save()
+ self.assertEqual(instance.file.name, 'tests/test2.txt')
+
+ # Delete the current file since this is not done by Django.
+ instance.file.delete()
+ f = TextFileForm(
+ data={'description': 'Assistance'},
+ files={'file': SimpleUploadedFile('test2.txt', b'hello world')})
+ self.assertEqual(f.is_valid(), True)
+ instance = f.save()
+ self.assertEqual(instance.file.name, 'tests/test2.txt')
+
+ # Delete the current file since this is not done by Django.
+ instance.file.delete()
+
+ instance.delete()
+
+ # Test the non-required FileField
+ f = TextFileForm(data={'description': 'Assistance'})
+ f.fields['file'].required = False
+ self.assertEqual(f.is_valid(), True)
+ instance = f.save()
+ self.assertEqual(instance.file.name, '')
+
+ f = TextFileForm(
+ data={'description': 'Assistance'},
+ files={'file': SimpleUploadedFile('test3.txt', b'hello world')}, instance=instance)
+ self.assertEqual(f.is_valid(), True)
+ instance = f.save()
+ self.assertEqual(instance.file.name, 'tests/test3.txt')
+
+ # Instance can be edited w/out re-uploading the file and existing file should be preserved.
+
+ f = TextFileForm(
+ data={'description': 'New Description'},
+ instance=instance)
+ f.fields['file'].required = False
+ self.assertEqual(f.is_valid(), True)
+ instance = f.save()
+ self.assertEqual(instance.description, 'New Description')
+ self.assertEqual(instance.file.name, 'tests/test3.txt')
+
+ # Delete the current file since this is not done by Django.
+ instance.file.delete()
+ instance.delete()
+
+ f = TextFileForm(
+ data={'description': 'Assistance'},
+ files={'file': SimpleUploadedFile('test3.txt', b'hello world')})
+ self.assertEqual(f.is_valid(), True)
+ instance = f.save()
+ self.assertEqual(instance.file.name, 'tests/test3.txt')
+
+ # Delete the current file since this is not done by Django.
+ instance.file.delete()
+ instance.delete()
+
+ def test_big_integer_field(self):
+ bif = BigIntForm({'biggie': '-9223372036854775808'})
+ self.assertEqual(bif.is_valid(), True)
+ bif = BigIntForm({'biggie': '-9223372036854775809'})
+ self.assertEqual(bif.is_valid(), False)
+ self.assertEqual(bif.errors, {'biggie': ['Ensure this value is greater than or equal to -9223372036854775808.']})
+ bif = BigIntForm({'biggie': '9223372036854775807'})
+ self.assertEqual(bif.is_valid(), True)
+ bif = BigIntForm({'biggie': '9223372036854775808'})
+ self.assertEqual(bif.is_valid(), False)
+ self.assertEqual(bif.errors, {'biggie': ['Ensure this value is less than or equal to 9223372036854775807.']})
+
+ @skipUnless(test_images, "PIL not installed")
+ def test_image_field(self):
+ # ImageField and FileField are nearly identical, but they differ slighty when
+ # it comes to validation. This specifically tests that #6302 is fixed for
+ # both file fields and image fields.
+
+ with open(os.path.join(os.path.dirname(upath(__file__)), "test.png"), 'rb') as fp:
+ image_data = fp.read()
+ with open(os.path.join(os.path.dirname(upath(__file__)), "test2.png"), 'rb') as fp:
+ image_data2 = fp.read()
+
+ f = ImageFileForm(
+ data={'description': 'An image'},
+ files={'image': SimpleUploadedFile('test.png', image_data)})
+ self.assertEqual(f.is_valid(), True)
+ self.assertEqual(type(f.cleaned_data['image']), SimpleUploadedFile)
+ instance = f.save()
+ self.assertEqual(instance.image.name, 'tests/test.png')
+ self.assertEqual(instance.width, 16)
+ self.assertEqual(instance.height, 16)
+
+ # Delete the current file since this is not done by Django, but don't save
+ # because the dimension fields are not null=True.
+ instance.image.delete(save=False)
+ f = ImageFileForm(
+ data={'description': 'An image'},
+ files={'image': SimpleUploadedFile('test.png', image_data)})
+ self.assertEqual(f.is_valid(), True)
+ self.assertEqual(type(f.cleaned_data['image']), SimpleUploadedFile)
+ instance = f.save()
+ self.assertEqual(instance.image.name, 'tests/test.png')
+ self.assertEqual(instance.width, 16)
+ self.assertEqual(instance.height, 16)
+
+ # Edit an instance that already has the (required) image defined in the model. This will not
+ # save the image again, but leave it exactly as it is.
+
+ f = ImageFileForm(data={'description': 'Look, it changed'}, instance=instance)
+ self.assertEqual(f.is_valid(), True)
+ self.assertEqual(f.cleaned_data['image'].name, 'tests/test.png')
+ instance = f.save()
+ self.assertEqual(instance.image.name, 'tests/test.png')
+ self.assertEqual(instance.height, 16)
+ self.assertEqual(instance.width, 16)
+
+ # Delete the current file since this is not done by Django, but don't save
+ # because the dimension fields are not null=True.
+ instance.image.delete(save=False)
+ # Override the file by uploading a new one.
+
+ f = ImageFileForm(
+ data={'description': 'Changed it'},
+ files={'image': SimpleUploadedFile('test2.png', image_data2)}, instance=instance)
+ self.assertEqual(f.is_valid(), True)
+ instance = f.save()
+ self.assertEqual(instance.image.name, 'tests/test2.png')
+ self.assertEqual(instance.height, 32)
+ self.assertEqual(instance.width, 48)
+
+ # Delete the current file since this is not done by Django, but don't save
+ # because the dimension fields are not null=True.
+ instance.image.delete(save=False)
+ instance.delete()
+
+ f = ImageFileForm(
+ data={'description': 'Changed it'},
+ files={'image': SimpleUploadedFile('test2.png', image_data2)})
+ self.assertEqual(f.is_valid(), True)
+ instance = f.save()
+ self.assertEqual(instance.image.name, 'tests/test2.png')
+ self.assertEqual(instance.height, 32)
+ self.assertEqual(instance.width, 48)
+
+ # Delete the current file since this is not done by Django, but don't save
+ # because the dimension fields are not null=True.
+ instance.image.delete(save=False)
+ instance.delete()
+
+ # Test the non-required ImageField
+ # Note: In Oracle, we expect a null ImageField to return '' instead of
+ # None.
+ if connection.features.interprets_empty_strings_as_nulls:
+ expected_null_imagefield_repr = ''
+ else:
+ expected_null_imagefield_repr = None
+
+ f = OptionalImageFileForm(data={'description': 'Test'})
+ self.assertEqual(f.is_valid(), True)
+ instance = f.save()
+ self.assertEqual(instance.image.name, expected_null_imagefield_repr)
+ self.assertEqual(instance.width, None)
+ self.assertEqual(instance.height, None)
+
+ f = OptionalImageFileForm(
+ data={'description': 'And a final one'},
+ files={'image': SimpleUploadedFile('test3.png', image_data)}, instance=instance)
+ self.assertEqual(f.is_valid(), True)
+ instance = f.save()
+ self.assertEqual(instance.image.name, 'tests/test3.png')
+ self.assertEqual(instance.width, 16)
+ self.assertEqual(instance.height, 16)
+
+ # Editing the instance without re-uploading the image should not affect the image or its width/height properties
+ f = OptionalImageFileForm(
+ data={'description': 'New Description'},
+ instance=instance)
+ self.assertEqual(f.is_valid(), True)
+ instance = f.save()
+ self.assertEqual(instance.description, 'New Description')
+ self.assertEqual(instance.image.name, 'tests/test3.png')
+ self.assertEqual(instance.width, 16)
+ self.assertEqual(instance.height, 16)
+
+ # Delete the current file since this is not done by Django.
+ instance.image.delete()
+ instance.delete()
+
+ f = OptionalImageFileForm(
+ data={'description': 'And a final one'},
+ files={'image': SimpleUploadedFile('test4.png', image_data2)}
+ )
+ self.assertEqual(f.is_valid(), True)
+ instance = f.save()
+ self.assertEqual(instance.image.name, 'tests/test4.png')
+ self.assertEqual(instance.width, 48)
+ self.assertEqual(instance.height, 32)
+ instance.delete()
+ # Test callable upload_to behavior that's dependent on the value of another field in the model
+ f = ImageFileForm(
+ data={'description': 'And a final one', 'path': 'foo'},
+ files={'image': SimpleUploadedFile('test4.png', image_data)})
+ self.assertEqual(f.is_valid(), True)
+ instance = f.save()
+ self.assertEqual(instance.image.name, 'foo/test4.png')
+ instance.delete()
+
+ def test_media_on_modelform(self):
+ # Similar to a regular Form class you can define custom media to be used on
+ # the ModelForm.
+ f = ModelFormWithMedia()
+ self.assertHTMLEqual(six.text_type(f.media), '''<link href="/some/form/css" type="text/css" media="all" rel="stylesheet" />
+<script type="text/javascript" src="/some/form/javascript"></script>''')
+
+ f = CommaSeparatedIntegerForm({'field': '1,2,3'})
+ self.assertEqual(f.is_valid(), True)
+ self.assertEqual(f.cleaned_data, {'field': '1,2,3'})
+ f = CommaSeparatedIntegerForm({'field': '1a,2'})
+ self.assertEqual(f.errors, {'field': ['Enter only digits separated by commas.']})
+ f = CommaSeparatedIntegerForm({'field': ',,,,'})
+ self.assertEqual(f.is_valid(), True)
+ self.assertEqual(f.cleaned_data, {'field': ',,,,'})
+ f = CommaSeparatedIntegerForm({'field': '1.2'})
+ self.assertEqual(f.errors, {'field': ['Enter only digits separated by commas.']})
+ f = CommaSeparatedIntegerForm({'field': '1,a,2'})
+ self.assertEqual(f.errors, {'field': ['Enter only digits separated by commas.']})
+ f = CommaSeparatedIntegerForm({'field': '1,,2'})
+ self.assertEqual(f.is_valid(), True)
+ self.assertEqual(f.cleaned_data, {'field': '1,,2'})
+ f = CommaSeparatedIntegerForm({'field': '1'})
+ self.assertEqual(f.is_valid(), True)
+ self.assertEqual(f.cleaned_data, {'field': '1'})
+
+ # This Price instance generated by this form is not valid because the quantity
+ # field is required, but the form is valid because the field is excluded from
+ # the form. This is for backwards compatibility.
+
+ form = PriceFormWithoutQuantity({'price': '6.00'})
+ self.assertEqual(form.is_valid(), True)
+ price = form.save(commit=False)
+ with self.assertRaises(ValidationError):
+ price.full_clean()
+
+ # The form should not validate fields that it doesn't contain even if they are
+ # specified using 'fields', not 'exclude'.
+ class Meta:
+ model = Price
+ fields = ('price',)
+ form = PriceFormWithoutQuantity({'price': '6.00'})
+ self.assertEqual(form.is_valid(), True)
+
+ # The form should still have an instance of a model that is not complete and
+ # not saved into a DB yet.
+
+ self.assertEqual(form.instance.price, Decimal('6.00'))
+ self.assertEqual(form.instance.quantity is None, True)
+ self.assertEqual(form.instance.pk is None, True)
+
+ # Choices on CharField and IntegerField
+ f = ArticleForm()
+ with self.assertRaises(ValidationError):
+ f.fields['status'].clean('42')
+
+ f = ArticleStatusForm()
+ with self.assertRaises(ValidationError):
+ f.fields['status'].clean('z')
+
+ def test_foreignkeys_which_use_to_field(self):
+ apple = Inventory.objects.create(barcode=86, name='Apple')
+ pear = Inventory.objects.create(barcode=22, name='Pear')
+ core = Inventory.objects.create(barcode=87, name='Core', parent=apple)
+
+ field = forms.ModelChoiceField(Inventory.objects.all(), to_field_name='barcode')
+ self.assertEqual(tuple(field.choices), (
+ ('', '---------'),
+ (86, 'Apple'),
+ (87, 'Core'),
+ (22, 'Pear')))
+
+ form = InventoryForm(instance=core)
+ self.assertHTMLEqual(six.text_type(form['parent']), '''<select name="parent" id="id_parent">
+<option value="">---------</option>
+<option value="86" selected="selected">Apple</option>
+<option value="87">Core</option>
+<option value="22">Pear</option>
+</select>''')
+ data = model_to_dict(core)
+ data['parent'] = '22'
+ form = InventoryForm(data=data, instance=core)
+ core = form.save()
+ self.assertEqual(core.parent.name, 'Pear')
+
+ class CategoryForm(forms.ModelForm):
+ description = forms.CharField()
+ class Meta:
+ model = Category
+ fields = ['description', 'url']
+
+ self.assertEqual(list(CategoryForm.base_fields),
+ ['description', 'url'])
+
+ self.assertHTMLEqual(six.text_type(CategoryForm()), '''<tr><th><label for="id_description">Description:</label></th><td><input type="text" name="description" id="id_description" /></td></tr>
+<tr><th><label for="id_url">The URL:</label></th><td><input id="id_url" type="text" name="url" maxlength="40" /></td></tr>''')
+ # to_field_name should also work on ModelMultipleChoiceField ##################
+
+ field = forms.ModelMultipleChoiceField(Inventory.objects.all(), to_field_name='barcode')
+ self.assertEqual(tuple(field.choices), ((86, 'Apple'), (87, 'Core'), (22, 'Pear')))
+ self.assertQuerysetEqual(field.clean([86]), ['Apple'])
+
+ form = SelectInventoryForm({'items': [87, 22]})
+ self.assertEqual(form.is_valid(), True)
+ self.assertEqual(len(form.cleaned_data), 1)
+ self.assertQuerysetEqual(form.cleaned_data['items'], ['Core', 'Pear'])
+
+ def test_model_field_that_returns_none_to_exclude_itself_with_explicit_fields(self):
+ self.assertEqual(list(CustomFieldForExclusionForm.base_fields),
+ ['name'])
+ self.assertHTMLEqual(six.text_type(CustomFieldForExclusionForm()),
+ '''<tr><th><label for="id_name">Name:</label></th><td><input id="id_name" type="text" name="name" maxlength="10" /></td></tr>''')
+
+ def test_iterable_model_m2m(self) :
+ colour = Colour.objects.create(name='Blue')
+ form = ColourfulItemForm()
+ self.maxDiff = 1024
+ self.assertHTMLEqual(
+ form.as_p(),
+ """<p><label for="id_name">Name:</label> <input id="id_name" type="text" name="name" maxlength="50" /></p>
+ <p><label for="id_colours">Colours:</label> <select multiple="multiple" name="colours" id="id_colours">
+ <option value="%(blue_pk)s">Blue</option>
+ </select> <span class="helptext"> Hold down "Control", or "Command" on a Mac, to select more than one.</span></p>"""
+ % {'blue_pk': colour.pk})
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