135 lines
4.7 KiB
Python
135 lines
4.7 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
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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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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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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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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 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.all()[0])
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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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__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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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']
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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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In a ModelForm with a ModelChoiceField, if the model's ForeignKey has blank=False and a default,
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no empty option is created (regression test for #10792).
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First we need at least one instance of ChoiceOptionModel:
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>>> ChoiceOptionModel.objects.create(name='default')
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<ChoiceOptionModel: ChoiceOptionModel object>
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>>> class ChoiceFieldForm(ModelForm):
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... class Meta:
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... model = ChoiceFieldModel
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>>> list(ChoiceFieldForm().fields['choice'].choices)
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[(1, u'ChoiceOptionModel object')]
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"""}
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