django1/tests/modeltests/model_forms/tests.py

1477 lines
63 KiB
Python

from __future__ import with_statement
import datetime
import os
from decimal import Decimal
from django import forms
from django.test import TestCase
from django.core.files.uploadedfile import SimpleUploadedFile
from django.core.validators import ValidationError
from django.forms.models import model_to_dict
from django.utils.unittest import skipUnless
from modeltests.model_forms.models import (Article, ArticleStatus,
BetterWriter, BigInt, Book, Category, CommaSeparatedInteger,
CustomFieldForExclusionModel, DerivedBook, DerivedPost, ExplicitPK,
FlexibleDatePost, ImprovedArticle, ImprovedArticleWithParentLink,
Inventory, PhoneNumber, Post, Price, Product, TextFile, Writer,
WriterProfile, test_images)
if test_images:
from modeltests.model_forms.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 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 PhoneNumberForm(forms.ModelForm):
class Meta:
model = PhoneNumber
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 = PhoneNumber
class CommaSeparatedIntegerForm(forms.ModelForm):
class Meta:
model = CommaSeparatedInteger
class PriceFormWithoutQuantity(forms.ModelForm):
class Meta:
model = Price
exclude = ('quantity',)
class ModelFormBaseTest(TestCase):
def test_base_form(self):
self.assertEqual(BaseCategoryForm.base_fields.keys(),
['name', 'slug', 'url'])
def test_extra_fields(self):
class ExtraFields(BaseCategoryForm):
some_extra_field = forms.BooleanField()
self.assertEqual(ExtraFields.base_fields.keys(),
['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(LimitFields.base_fields.keys(),
['url'])
def test_exclude_fields(self):
class ExcludeFields(forms.ModelForm):
class Meta:
model = Category
exclude = ['url']
self.assertEqual(ExcludeFields.base_fields.keys(),
['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(ConfusedForm.base_fields.keys(),
['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(
MixModelForm.base_fields.keys(),
['headline', 'slug', 'pub_date', 'writer', 'article', 'categories', 'status']
)
def test_article_form(self):
self.assertEqual(
ArticleForm.base_fields.keys(),
['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(
BadForm.base_fields.keys(),
['headline', 'slug', 'pub_date', 'writer', 'article', 'categories', 'status']
)
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(SubCategoryForm.base_fields.keys(),
['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.assertEqual(
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(OrderFields.base_fields.keys(),
['url', 'name'])
self.assertEqual(
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(OrderFields2.base_fields.keys(),
['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.assertEqual(
str(frm['name']),
'<textarea id="id_name" rows="10" cols="40" name="name"></textarea>'
)
self.assertEqual(
str(frm['url']),
'<input id="id_url" type="text" class="url" name="url" maxlength="40" />'
)
self.assertEqual(
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'], [u'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__'], [u'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__'], [u'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': u'1', 'isbn': '12345'})
self.assertFalse(form.is_valid())
self.assertEqual(len(form.errors), 1)
self.assertEqual(form.errors['special_id'], [u'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__'], [u'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'], [u'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': u'0',
'suffix2': u'0'
})
self.assertFalse(form.is_valid())
self.assertEqual(len(form.errors), 1)
self.assertEqual(form.errors['__all__'],
[u'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': u'', 'desc': u'' })
self.assertFalse(form.is_valid())
def test_explicitpk_unique(self):
"""Ensure keys and blank character strings are tested for uniqueness."""
form = ExplicitPKForm({'key': u'key1', 'desc': u''})
self.assertTrue(form.is_valid())
form.save()
form = ExplicitPKForm({'key': u'key1', 'desc': u''})
self.assertFalse(form.is_valid())
self.assertEqual(len(form.errors), 3)
self.assertEqual(form.errors['__all__'], [u'Explicit pk with this Key and Desc already exists.'])
self.assertEqual(form.errors['desc'], [u'Explicit pk with this Desc already exists.'])
self.assertEqual(form.errors['key'], [u'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'], [u'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'], [u'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'], [u'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'], [u'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'], [u'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'], [u'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'], [u'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 OldFormForXTests(TestCase):
def test_base_form(self):
self.assertEqual(Category.objects.count(), 0)
f = BaseCategoryForm()
self.assertEqual(
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.assertEqual(
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.assertEqual(
str(f["name"]),
"""<input id="id_name" type="text" name="name" maxlength="20" />""")
def test_auto_id(self):
f = BaseCategoryForm(auto_id=False)
self.assertEqual(
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'], u'third')
self.assertEqual(f.cleaned_data['name'], u'Third test')
self.assertEqual(f.cleaned_data['slug'], u'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'], [u'This field is required.'])
self.assertEqual(f.errors['slug'], [u"Enter a valid 'slug' consisting of letters, numbers, underscores or hyphens."])
with self.assertRaises(AttributeError):
f.cleaned_data
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.assertEqual(unicode(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="2">Bob Woodward</option>
<option value="1">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="1">Entertainment</option>
<option value="2">It&#39;s a test</option>
<option value="3">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>''')
# 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.assertEqual(unicode(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.assertEqual(unicode(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.assertEqual(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="2">Bob Woodward</option>
<option value="1" 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="1">Entertainment</option>
<option value="2">It&#39;s a test</option>
<option value="3">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>''')
f = TestArticleForm({
'headline': u'Test headline',
'slug': 'test-headline',
'pub_date': u'1984-02-06',
'writer': unicode(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, u'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': u'New headline',
'slug': 'new-headline',
'pub_date': u'1988-01-04'
}, auto_id=False, instance=art)
self.assertEqual(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, u'New headline')
# Add some categories and test the many-to-many form output.
self.assertEqual(map(lambda o: o.name, new_art.categories.all()), [])
new_art.categories.add(Category.objects.get(name='Entertainment'))
self.assertEqual(map(lambda o: o.name, new_art.categories.all()), ["Entertainment"])
f = TestArticleForm(auto_id=False, instance=new_art)
self.assertEqual(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="2">Bob Woodward</option>
<option value="1" 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="1" selected="selected">Entertainment</option>
<option value="2">It&#39;s a test</option>
<option value="3">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>''')
# 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.assertEqual(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="2">Bob Woodward</option>
<option value="1">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="1" selected="selected">Entertainment</option>
<option value="2" selected="selected">It&#39;s a test</option>
<option value="3">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>''')
f = TestArticleForm({
'headline': u'New headline',
'slug': u'new-headline',
'pub_date': u'1988-01-04',
'writer': unicode(w_royko.pk),
'article': u'Hello.',
'categories': [unicode(c1.id), unicode(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.assertEqual(map(lambda o: o.name, 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': u'New headline', 'slug': u'new-headline', 'pub_date': u'1988-01-04',
'writer': unicode(w_royko.pk), 'article': u'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.assertEqual(map(lambda o: o.name, new_art.categories.all()), [])
# Create a new article, with categories, via the form.
f = ArticleForm({'headline': u'The walrus was Paul', 'slug': u'walrus-was-paul', 'pub_date': u'1967-11-01',
'writer': unicode(w_royko.pk), 'article': u'Test.', 'categories': [unicode(c1.id), unicode(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.assertEqual(map(lambda o: o.name, new_art.categories.order_by('name')), ["Entertainment", "It's a test"])
# Create a new article, with no categories, via the form.
f = ArticleForm({'headline': u'The walrus was Paul', 'slug': u'walrus-was-paul', 'pub_date': u'1967-11-01',
'writer': unicode(w_royko.pk), 'article': u'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.assertEqual(map(lambda o: o.name, 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': u'The walrus was Paul', 'slug': 'walrus-was-paul', 'pub_date': u'1967-11-01',
'writer': unicode(w_royko.pk), 'article': u'Test.', 'categories': [unicode(c1.id), unicode(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.assertEqual(map(lambda o: o.name, new_art.categories.all()), [])
# Save the m2m data on the form
f.save_m2m()
self.assertEqual(map(lambda o: o.name, 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.assertEqual(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="2">Bob Woodward</option>
<option value="1">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="1">Entertainment</option>
<option value="2">It&#39;s a test</option>
<option value="3">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>''')
c4 = Category.objects.create(name='Fourth', url='4th')
self.assertEqual(c4.name, 'Fourth')
self.assertEqual(Writer.objects.create(name='Carl Bernstein').name, 'Carl Bernstein')
self.assertEqual(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="2">Bob Woodward</option>
<option value="3">Carl Bernstein</option>
<option value="1">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="1">Entertainment</option>
<option value="2">It&#39;s a test</option>
<option value="3">Third</option>
<option value="4">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>''')
# ModelChoiceField ############################################################
f = forms.ModelChoiceField(Category.objects.all())
self.assertEqual(list(f.choices), [
(u'', u'---------'),
(1, u'Entertainment'),
(2, u"It's a test"),
(3, u'Third'),
(4, u'Fourth')])
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), [
(u'', u'---------'),
(1, u'Entertainment'),
(2, u"It's a test"),
(3, u'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], (2, u"It's a test"))
self.assertEqual(list(gen_two), [
(u'', u'---------'),
(1, u'Entertainment'),
(2, u"It's a test"),
(3, u'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), [
(u'', u'---------'),
(1, 'category Entertainment'),
(2, "category It's a test"),
(3, 'category Third'),
(4, 'category Fourth')])
# ModelMultipleChoiceField ####################################################
f = forms.ModelMultipleChoiceField(Category.objects.all())
self.assertEqual(list(f.choices), [
(1, u'Entertainment'),
(2, u"It's a test"),
(3, u'Third'),
(4, u'Fourth')])
with self.assertRaises(ValidationError):
f.clean(None)
with self.assertRaises(ValidationError):
f.clean([])
self.assertEqual(map(lambda o: o.name, f.clean([c1.id])), ["Entertainment"])
self.assertEqual(map(lambda o: o.name, f.clean([c2.id])), ["It's a test"])
self.assertEqual(map(lambda o: o.name, f.clean([str(c1.id)])), ["Entertainment"])
self.assertEqual(map(lambda o: o.name, f.clean([str(c1.id), str(c2.id)])), ["Entertainment", "It's a test"])
self.assertEqual(map(lambda o: o.name, f.clean([c1.id, str(c2.id)])), ["Entertainment", "It's a test"])
self.assertEqual(map(lambda o: o.name, f.clean((c1.id, str(c2.id)))), ["Entertainment", "It's a test"])
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.
c6 = Category.objects.create(id=6, name='Sixth', url='6th')
self.assertEqual(c6.name, 'Sixth')
self.assertEqual(map(lambda o: o.name, 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.assertEqual(f.clean([]), [])
self.assertEqual(f.clean(()), [])
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), [
(1, u'Entertainment'),
(2, u"It's a test"),
(3, u'Third')])
self.assertEqual(map(lambda o: o.name, 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), [
(1, 'multicategory Entertainment'),
(2, "multicategory It's a test"),
(3, 'multicategory Third'),
(4, 'multicategory Fourth')])
# OneToOneField ###############################################################
self.assertEqual(ImprovedArticleForm.base_fields.keys(), ['article'])
self.assertEqual(ImprovedArticleWithParentLinkForm.base_fields.keys(), [])
bw = BetterWriter(name=u'Joe Better', score=10)
bw.save()
self.assertEqual(sorted(model_to_dict(bw).keys()),
['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.assertEqual(form.as_p(), '''<p><label for="id_writer">Writer:</label> <select name="writer" id="id_writer">
<option value="" selected="selected">---------</option>
<option value="2">Bob Woodward</option>
<option value="3">Carl Bernstein</option>
<option value="4">Joe Better</option>
<option value="1">Mike Royko</option>
</select></p>
<p><label for="id_age">Age:</label> <input type="text" name="age" id="id_age" /></p>''')
data = {
'writer': unicode(w_woodward.pk),
'age': u'65',
}
form = WriterProfileForm(data)
instance = form.save()
self.assertEqual(unicode(instance), 'Bob Woodward is 65')
form = WriterProfileForm(instance=instance)
self.assertEqual(form.as_p(), '''<p><label for="id_writer">Writer:</label> <select name="writer" id="id_writer">
<option value="">---------</option>
<option value="2" selected="selected">Bob Woodward</option>
<option value="3">Carl Bernstein</option>
<option value="4">Joe Better</option>
<option value="1">Mike Royko</option>
</select></p>
<p><label for="id_age">Age:</label> <input type="text" name="age" value="65" id="id_age" /></p>''')
def test_phone_number_field(self):
f = PhoneNumberForm({'phone': '(312) 555-1212', 'description': 'Assistance'})
self.assertEqual(f.is_valid(), True)
self.assertEqual(f.cleaned_data['phone'], u'312-555-1212')
self.assertEqual(f.cleaned_data['description'], u'Assistance')
def test_file_field(self):
# Test conditions when files is either not given or empty.
f = TextFileForm(data={'description': u'Assistance'})
self.assertEqual(f.is_valid(), False)
f = TextFileForm(data={'description': u'Assistance'}, files={})
self.assertEqual(f.is_valid(), False)
# Upload a file and ensure it all works as expected.
f = TextFileForm(
data={'description': u'Assistance'},
files={'file': SimpleUploadedFile('test1.txt', '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': u'Assistance'},
files={'file': SimpleUploadedFile('test1.txt', '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': u'Assistance'},
files={'file': SimpleUploadedFile('test-maxlength.txt', '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': u'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': u'Assistance'},
files={'file': SimpleUploadedFile('test2.txt', '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': u'Assistance'},
files={'file': SimpleUploadedFile('test2.txt', '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': u'Assistance'})
f.fields['file'].required = False
self.assertEqual(f.is_valid(), True)
instance = f.save()
self.assertEqual(instance.file.name, '')
f = TextFileForm(
data={'description': u'Assistance'},
files={'file': SimpleUploadedFile('test3.txt', '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': u'New Description'},
instance=instance)
f.fields['file'].required = False
self.assertEqual(f.is_valid(), True)
instance = f.save()
self.assertEqual(instance.description, u'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': u'Assistance'},
files={'file': SimpleUploadedFile('test3.txt', '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': [u'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': [u'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.
image_data = open(os.path.join(os.path.dirname(__file__), "test.png"), 'rb').read()
image_data2 = open(os.path.join(os.path.dirname(__file__), "test2.png"), 'rb').read()
f = ImageFileForm(
data={'description': u'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': u'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': u'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': u'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': u'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
f = OptionalImageFileForm(data={'description': u'Test'})
self.assertEqual(f.is_valid(), True)
instance = f.save()
self.assertEqual(instance.image.name, None)
self.assertEqual(instance.width, None)
self.assertEqual(instance.height, None)
f = OptionalImageFileForm(
data={'description': u'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': u'New Description'},
instance=instance)
self.assertEqual(f.is_valid(), True)
instance = f.save()
self.assertEqual(instance.description, u'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': u'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': u'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.assertEqual(unicode(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': u'1,2,3'})
f = CommaSeparatedIntegerForm({'field': '1a,2'})
self.assertEqual(f.errors, {'field': [u'Enter only digits separated by commas.']})
f = CommaSeparatedIntegerForm({'field': ',,,,'})
self.assertEqual(f.is_valid(), True)
self.assertEqual(f.cleaned_data, {'field': u',,,,'})
f = CommaSeparatedIntegerForm({'field': '1.2'})
self.assertEqual(f.errors, {'field': [u'Enter only digits separated by commas.']})
f = CommaSeparatedIntegerForm({'field': '1,a,2'})
self.assertEqual(f.errors, {'field': [u'Enter only digits separated by commas.']})
f = CommaSeparatedIntegerForm({'field': '1,,2'})
self.assertEqual(f.is_valid(), True)
self.assertEqual(f.cleaned_data, {'field': u'1,,2'})
f = CommaSeparatedIntegerForm({'field': '1'})
self.assertEqual(f.is_valid(), True)
self.assertEqual(f.cleaned_data, {'field': u'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), (
(u'', u'---------'),
(86, u'Apple'),
(87, u'Core'),
(22, u'Pear')))
form = InventoryForm(instance=core)
self.assertEqual(unicode(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(CategoryForm.base_fields.keys(),
['description', 'url'])
self.assertEqual(unicode(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, u'Apple'), (87, u'Core'), (22, u'Pear')))
self.assertEqual(map(lambda o: o.name, field.clean([86])), ['Apple'])
form = SelectInventoryForm({'items': [87, 22]})
self.assertEqual(form.is_valid(), True)
self.assertEqual(len(form.cleaned_data), 1)
self.assertEqual(map(lambda o: o.name, form.cleaned_data['items']), ['Core', 'Pear'])
def test_model_field_that_returns_none_to_exclude_itself_with_explicit_fields(self):
self.assertEqual(CustomFieldForExclusionForm.base_fields.keys(), ['name'])
self.assertEqual(unicode(CustomFieldForExclusionForm()),
'''<tr><th><label for="id_name">Name:</label></th><td><input id="id_name" type="text" name="name" maxlength="10" /></td></tr>''')