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b3dc3a0106
git-svn-id: http://code.djangoproject.com/svn/django/trunk@13577 bcc190cf-cafb-0310-a4f2-bffc1f526a37
245 lines
11 KiB
Python
245 lines
11 KiB
Python
# -*- coding: utf-8 -*-
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import datetime
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import tempfile
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import shutil
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from django.db import models, connection
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from django.conf import settings
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# Can't import as "forms" due to implementation details in the test suite (the
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# current file is called "forms" and is already imported).
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from django import forms as django_forms
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from django.core.files.storage import FileSystemStorage
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from django.test import TestCase
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temp_storage_location = tempfile.mkdtemp()
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temp_storage = FileSystemStorage(location=temp_storage_location)
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class BoundaryModel(models.Model):
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positive_integer = models.PositiveIntegerField(null=True, blank=True)
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callable_default_value = 0
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def callable_default():
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global callable_default_value
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callable_default_value = callable_default_value + 1
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return callable_default_value
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class Defaults(models.Model):
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name = models.CharField(max_length=255, default='class default value')
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def_date = models.DateField(default = datetime.date(1980, 1, 1))
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value = models.IntegerField(default=42)
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callable_default = models.IntegerField(default=callable_default)
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class ChoiceModel(models.Model):
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"""For ModelChoiceField and ModelMultipleChoiceField tests."""
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name = models.CharField(max_length=10)
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class ChoiceOptionModel(models.Model):
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"""Destination for ChoiceFieldModel's ForeignKey.
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Can't reuse ChoiceModel because error_message tests require that it have no instances."""
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name = models.CharField(max_length=10)
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class Meta:
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ordering = ('name',)
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def __unicode__(self):
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return u'ChoiceOption %d' % self.pk
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class ChoiceFieldModel(models.Model):
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"""Model with ForeignKey to another model, for testing ModelForm
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generation with ModelChoiceField."""
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choice = models.ForeignKey(ChoiceOptionModel, blank=False,
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default=lambda: ChoiceOptionModel.objects.get(name='default'))
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choice_int = models.ForeignKey(ChoiceOptionModel, blank=False, related_name='choice_int',
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default=lambda: 1)
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multi_choice = models.ManyToManyField(ChoiceOptionModel, blank=False, related_name='multi_choice',
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default=lambda: ChoiceOptionModel.objects.filter(name='default'))
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multi_choice_int = models.ManyToManyField(ChoiceOptionModel, blank=False, related_name='multi_choice_int',
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default=lambda: [1])
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class ChoiceFieldForm(django_forms.ModelForm):
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class Meta:
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model = ChoiceFieldModel
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class FileModel(models.Model):
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file = models.FileField(storage=temp_storage, upload_to='tests')
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class FileForm(django_forms.Form):
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file1 = django_forms.FileField()
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class Group(models.Model):
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name = models.CharField(max_length=10)
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def __unicode__(self):
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return u'%s' % self.name
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class TestTicket12510(TestCase):
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''' It is not necessary to generate choices for ModelChoiceField (regression test for #12510). '''
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def setUp(self):
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self.groups = [Group.objects.create(name=name) for name in 'abc']
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self.old_debug = settings.DEBUG
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# turn debug on to get access to connection.queries
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settings.DEBUG = True
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def tearDown(self):
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settings.DEBUG = self.old_debug
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def test_choices_not_fetched_when_not_rendering(self):
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initial_queries = len(connection.queries)
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field = django_forms.ModelChoiceField(Group.objects.order_by('-name'))
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self.assertEqual('a', field.clean(self.groups[0].pk).name)
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# only one query is required to pull the model from DB
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self.assertEqual(initial_queries+1, len(connection.queries))
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class ModelFormCallableModelDefault(TestCase):
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def test_no_empty_option(self):
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"If a model's ForeignKey has blank=False and a default, no empty option is created (Refs #10792)."
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option = ChoiceOptionModel.objects.create(name='default')
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choices = list(ChoiceFieldForm().fields['choice'].choices)
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self.assertEquals(len(choices), 1)
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self.assertEquals(choices[0], (option.pk, unicode(option)))
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def test_callable_initial_value(self):
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"The initial value for a callable default returning a queryset is the pk (refs #13769)"
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obj1 = ChoiceOptionModel.objects.create(id=1, name='default')
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obj2 = ChoiceOptionModel.objects.create(id=2, name='option 2')
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obj3 = ChoiceOptionModel.objects.create(id=3, name='option 3')
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self.assertEquals(ChoiceFieldForm().as_p(), """<p><label for="id_choice">Choice:</label> <select name="choice" id="id_choice">
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<option value="1" selected="selected">ChoiceOption 1</option>
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<option value="2">ChoiceOption 2</option>
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<option value="3">ChoiceOption 3</option>
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</select><input type="hidden" name="initial-choice" value="1" id="initial-id_choice" /></p>
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<p><label for="id_choice_int">Choice int:</label> <select name="choice_int" id="id_choice_int">
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<option value="1" selected="selected">ChoiceOption 1</option>
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<option value="2">ChoiceOption 2</option>
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<option value="3">ChoiceOption 3</option>
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</select><input type="hidden" name="initial-choice_int" value="1" id="initial-id_choice_int" /></p>
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<p><label for="id_multi_choice">Multi choice:</label> <select multiple="multiple" name="multi_choice" id="id_multi_choice">
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<option value="1" selected="selected">ChoiceOption 1</option>
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<option value="2">ChoiceOption 2</option>
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<option value="3">ChoiceOption 3</option>
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</select><input type="hidden" name="initial-multi_choice" value="1" id="initial-id_multi_choice_0" /> <span class="helptext"> Hold down "Control", or "Command" on a Mac, to select more than one.</span></p>
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<p><label for="id_multi_choice_int">Multi choice int:</label> <select multiple="multiple" name="multi_choice_int" id="id_multi_choice_int">
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<option value="1" selected="selected">ChoiceOption 1</option>
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<option value="2">ChoiceOption 2</option>
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<option value="3">ChoiceOption 3</option>
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</select><input type="hidden" name="initial-multi_choice_int" value="1" id="initial-id_multi_choice_int_0" /> <span class="helptext"> Hold down "Control", or "Command" on a Mac, to select more than one.</span></p>""")
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def test_initial_instance_value(self):
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"Initial instances for model fields may also be instances (refs #7287)"
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obj1 = ChoiceOptionModel.objects.create(id=1, name='default')
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obj2 = ChoiceOptionModel.objects.create(id=2, name='option 2')
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obj3 = ChoiceOptionModel.objects.create(id=3, name='option 3')
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self.assertEquals(ChoiceFieldForm(initial={
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'choice': obj2,
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'choice_int': obj2,
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'multi_choice': [obj2,obj3],
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'multi_choice_int': ChoiceOptionModel.objects.exclude(name="default"),
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}).as_p(), """<p><label for="id_choice">Choice:</label> <select name="choice" id="id_choice">
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<option value="1">ChoiceOption 1</option>
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<option value="2" selected="selected">ChoiceOption 2</option>
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<option value="3">ChoiceOption 3</option>
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</select><input type="hidden" name="initial-choice" value="2" id="initial-id_choice" /></p>
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<p><label for="id_choice_int">Choice int:</label> <select name="choice_int" id="id_choice_int">
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<option value="1">ChoiceOption 1</option>
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<option value="2" selected="selected">ChoiceOption 2</option>
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<option value="3">ChoiceOption 3</option>
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</select><input type="hidden" name="initial-choice_int" value="2" id="initial-id_choice_int" /></p>
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<p><label for="id_multi_choice">Multi choice:</label> <select multiple="multiple" name="multi_choice" id="id_multi_choice">
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<option value="1">ChoiceOption 1</option>
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<option value="2" selected="selected">ChoiceOption 2</option>
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<option value="3" selected="selected">ChoiceOption 3</option>
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</select><input type="hidden" name="initial-multi_choice" value="2" id="initial-id_multi_choice_0" />
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<input type="hidden" name="initial-multi_choice" value="3" id="initial-id_multi_choice_1" /> <span class="helptext"> Hold down "Control", or "Command" on a Mac, to select more than one.</span></p>
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<p><label for="id_multi_choice_int">Multi choice int:</label> <select multiple="multiple" name="multi_choice_int" id="id_multi_choice_int">
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<option value="1">ChoiceOption 1</option>
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<option value="2" selected="selected">ChoiceOption 2</option>
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<option value="3" selected="selected">ChoiceOption 3</option>
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</select><input type="hidden" name="initial-multi_choice_int" value="2" id="initial-id_multi_choice_int_0" />
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<input type="hidden" name="initial-multi_choice_int" value="3" id="initial-id_multi_choice_int_1" /> <span class="helptext"> Hold down "Control", or "Command" on a Mac, to select more than one.</span></p>""")
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__test__ = {'API_TESTS': """
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>>> from django.forms.models import ModelForm
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>>> from django.core.files.uploadedfile import SimpleUploadedFile
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# FileModel with unicode filename and data #########################
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>>> f = FileForm(data={}, files={'file1': SimpleUploadedFile('我隻氣墊船裝滿晒鱔.txt', 'मेरी मँडराने वाली नाव सर्पमीनों से भरी ह')}, auto_id=False)
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>>> f.is_valid()
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True
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>>> f.cleaned_data
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{'file1': <SimpleUploadedFile: 我隻氣墊船裝滿晒鱔.txt (text/plain)>}
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>>> m = FileModel.objects.create(file=f.cleaned_data['file1'])
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# It's enough that m gets created without error. Preservation of the exotic name is checked
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# in a file_uploads test; it's hard to do that correctly with doctest's unicode issues. So
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# we create and then immediately delete m so as to not leave the exotically named file around
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# for shutil.rmtree (on Windows) to have trouble with later.
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>>> m.delete()
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# Boundary conditions on a PostitiveIntegerField #########################
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>>> class BoundaryForm(ModelForm):
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... class Meta:
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... model = BoundaryModel
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>>> f = BoundaryForm({'positive_integer': 100})
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>>> f.is_valid()
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True
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>>> f = BoundaryForm({'positive_integer': 0})
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>>> f.is_valid()
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True
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>>> f = BoundaryForm({'positive_integer': -100})
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>>> f.is_valid()
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False
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# Formfield initial values ########
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If the model has default values for some fields, they are used as the formfield
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initial values.
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>>> class DefaultsForm(ModelForm):
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... class Meta:
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... model = Defaults
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>>> DefaultsForm().fields['name'].initial
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u'class default value'
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>>> DefaultsForm().fields['def_date'].initial
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datetime.date(1980, 1, 1)
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>>> DefaultsForm().fields['value'].initial
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42
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>>> r1 = DefaultsForm()['callable_default'].as_widget()
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>>> r2 = DefaultsForm()['callable_default'].as_widget()
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>>> r1 == r2
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False
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In a ModelForm that is passed an instance, the initial values come from the
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instance's values, not the model's defaults.
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>>> foo_instance = Defaults(name=u'instance value', def_date=datetime.date(1969, 4, 4), value=12)
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>>> instance_form = DefaultsForm(instance=foo_instance)
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>>> instance_form.initial['name']
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u'instance value'
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>>> instance_form.initial['def_date']
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datetime.date(1969, 4, 4)
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>>> instance_form.initial['value']
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12
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>>> from django.forms import CharField
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>>> class ExcludingForm(ModelForm):
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... name = CharField(max_length=255)
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... class Meta:
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... model = Defaults
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... exclude = ['name', 'callable_default']
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>>> f = ExcludingForm({'name': u'Hello', 'value': 99, 'def_date': datetime.date(1999, 3, 2)})
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>>> f.is_valid()
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True
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>>> f.cleaned_data['name']
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u'Hello'
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>>> obj = f.save()
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>>> obj.name
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u'class default value'
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>>> obj.value
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99
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>>> obj.def_date
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datetime.date(1999, 3, 2)
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>>> shutil.rmtree(temp_storage_location)
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"""}
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