mirror of
https://github.com/django/django.git
synced 2025-10-31 01:25:32 +00:00
425 lines
12 KiB
Python
425 lines
12 KiB
Python
"""
|
|
XX. Generating HTML forms from models
|
|
|
|
This is mostly just a reworking of the ``form_for_model``/``form_for_instance``
|
|
tests to use ``ModelForm``. As such, the text may not make sense in all cases,
|
|
and the examples are probably a poor fit for the ``ModelForm`` syntax. In other
|
|
words, most of these tests should be rewritten.
|
|
"""
|
|
from __future__ import unicode_literals
|
|
|
|
import datetime
|
|
import os
|
|
import tempfile
|
|
|
|
from django.core import validators
|
|
from django.core.exceptions import ImproperlyConfigured, ValidationError
|
|
from django.core.files.storage import FileSystemStorage
|
|
from django.db import models
|
|
from django.utils import six
|
|
from django.utils.encoding import python_2_unicode_compatible
|
|
from django.utils._os import upath
|
|
|
|
|
|
temp_storage_dir = tempfile.mkdtemp(dir=os.environ['DJANGO_TEST_TEMP_DIR'])
|
|
temp_storage = FileSystemStorage(temp_storage_dir)
|
|
|
|
ARTICLE_STATUS = (
|
|
(1, 'Draft'),
|
|
(2, 'Pending'),
|
|
(3, 'Live'),
|
|
)
|
|
|
|
ARTICLE_STATUS_CHAR = (
|
|
('d', 'Draft'),
|
|
('p', 'Pending'),
|
|
('l', 'Live'),
|
|
)
|
|
|
|
|
|
class Person(models.Model):
|
|
name = models.CharField(max_length=100)
|
|
|
|
|
|
@python_2_unicode_compatible
|
|
class Category(models.Model):
|
|
name = models.CharField(max_length=20)
|
|
slug = models.SlugField(max_length=20)
|
|
url = models.CharField('The URL', max_length=40)
|
|
|
|
def __str__(self):
|
|
return self.name
|
|
|
|
def __repr__(self):
|
|
return self.__str__()
|
|
|
|
|
|
@python_2_unicode_compatible
|
|
class Writer(models.Model):
|
|
name = models.CharField(max_length=50, help_text='Use both first and last names.')
|
|
|
|
class Meta:
|
|
ordering = ('name',)
|
|
|
|
def __str__(self):
|
|
return self.name
|
|
|
|
|
|
@python_2_unicode_compatible
|
|
class Article(models.Model):
|
|
headline = models.CharField(max_length=50)
|
|
slug = models.SlugField()
|
|
pub_date = models.DateField()
|
|
created = models.DateField(editable=False)
|
|
writer = models.ForeignKey(Writer)
|
|
article = models.TextField()
|
|
categories = models.ManyToManyField(Category, blank=True)
|
|
status = models.PositiveIntegerField(choices=ARTICLE_STATUS, blank=True, null=True)
|
|
|
|
def save(self, *args, **kwargs):
|
|
if not self.id:
|
|
self.created = datetime.date.today()
|
|
return super(Article, self).save(*args, **kwargs)
|
|
|
|
def __str__(self):
|
|
return self.headline
|
|
|
|
|
|
class ImprovedArticle(models.Model):
|
|
article = models.OneToOneField(Article)
|
|
|
|
|
|
class ImprovedArticleWithParentLink(models.Model):
|
|
article = models.OneToOneField(Article, parent_link=True)
|
|
|
|
|
|
class BetterWriter(Writer):
|
|
score = models.IntegerField()
|
|
|
|
|
|
@python_2_unicode_compatible
|
|
class Publication(models.Model):
|
|
title = models.CharField(max_length=30)
|
|
date_published = models.DateField()
|
|
|
|
def __str__(self):
|
|
return self.title
|
|
|
|
|
|
class Author(models.Model):
|
|
publication = models.OneToOneField(Publication, null=True, blank=True)
|
|
full_name = models.CharField(max_length=255)
|
|
|
|
|
|
class Author1(models.Model):
|
|
publication = models.OneToOneField(Publication, null=False)
|
|
full_name = models.CharField(max_length=255)
|
|
|
|
|
|
@python_2_unicode_compatible
|
|
class WriterProfile(models.Model):
|
|
writer = models.OneToOneField(Writer, primary_key=True)
|
|
age = models.PositiveIntegerField()
|
|
|
|
def __str__(self):
|
|
return "%s is %s" % (self.writer, self.age)
|
|
|
|
|
|
class Document(models.Model):
|
|
myfile = models.FileField(upload_to='unused', blank=True)
|
|
|
|
|
|
@python_2_unicode_compatible
|
|
class TextFile(models.Model):
|
|
description = models.CharField(max_length=20)
|
|
file = models.FileField(storage=temp_storage, upload_to='tests', max_length=15)
|
|
|
|
def __str__(self):
|
|
return self.description
|
|
|
|
|
|
class CustomFileField(models.FileField):
|
|
def save_form_data(self, instance, data):
|
|
been_here = getattr(self, 'been_saved', False)
|
|
assert not been_here, "save_form_data called more than once"
|
|
setattr(self, 'been_saved', True)
|
|
|
|
|
|
class CustomFF(models.Model):
|
|
f = CustomFileField(upload_to='unused', blank=True)
|
|
|
|
|
|
class FilePathModel(models.Model):
|
|
path = models.FilePathField(path=os.path.dirname(upath(__file__)), match=".*\.py$", blank=True)
|
|
|
|
|
|
try:
|
|
from django.utils.image import Image # NOQA: detect if Pillow is installed
|
|
|
|
test_images = True
|
|
|
|
@python_2_unicode_compatible
|
|
class ImageFile(models.Model):
|
|
def custom_upload_path(self, filename):
|
|
path = self.path or 'tests'
|
|
return '%s/%s' % (path, filename)
|
|
|
|
description = models.CharField(max_length=20)
|
|
|
|
# Deliberately put the image field *after* the width/height fields to
|
|
# trigger the bug in #10404 with width/height not getting assigned.
|
|
width = models.IntegerField(editable=False)
|
|
height = models.IntegerField(editable=False)
|
|
image = models.ImageField(storage=temp_storage, upload_to=custom_upload_path,
|
|
width_field='width', height_field='height')
|
|
path = models.CharField(max_length=16, blank=True, default='')
|
|
|
|
def __str__(self):
|
|
return self.description
|
|
|
|
@python_2_unicode_compatible
|
|
class OptionalImageFile(models.Model):
|
|
def custom_upload_path(self, filename):
|
|
path = self.path or 'tests'
|
|
return '%s/%s' % (path, filename)
|
|
|
|
description = models.CharField(max_length=20)
|
|
image = models.ImageField(storage=temp_storage, upload_to=custom_upload_path,
|
|
width_field='width', height_field='height',
|
|
blank=True, null=True)
|
|
width = models.IntegerField(editable=False, null=True)
|
|
height = models.IntegerField(editable=False, null=True)
|
|
path = models.CharField(max_length=16, blank=True, default='')
|
|
|
|
def __str__(self):
|
|
return self.description
|
|
except ImproperlyConfigured:
|
|
test_images = False
|
|
|
|
|
|
@python_2_unicode_compatible
|
|
class CommaSeparatedInteger(models.Model):
|
|
field = models.CommaSeparatedIntegerField(max_length=20)
|
|
|
|
def __str__(self):
|
|
return self.field
|
|
|
|
|
|
class Homepage(models.Model):
|
|
url = models.URLField()
|
|
|
|
|
|
@python_2_unicode_compatible
|
|
class Product(models.Model):
|
|
slug = models.SlugField(unique=True)
|
|
|
|
def __str__(self):
|
|
return self.slug
|
|
|
|
|
|
@python_2_unicode_compatible
|
|
class Price(models.Model):
|
|
price = models.DecimalField(max_digits=10, decimal_places=2)
|
|
quantity = models.PositiveIntegerField()
|
|
|
|
def __str__(self):
|
|
return "%s for %s" % (self.quantity, self.price)
|
|
|
|
class Meta:
|
|
unique_together = (('price', 'quantity'),)
|
|
|
|
|
|
class Triple(models.Model):
|
|
left = models.IntegerField()
|
|
middle = models.IntegerField()
|
|
right = models.IntegerField()
|
|
|
|
class Meta:
|
|
unique_together = (('left', 'middle'), ('middle', 'right'))
|
|
|
|
|
|
class ArticleStatus(models.Model):
|
|
status = models.CharField(max_length=2, choices=ARTICLE_STATUS_CHAR, blank=True, null=True)
|
|
|
|
|
|
@python_2_unicode_compatible
|
|
class Inventory(models.Model):
|
|
barcode = models.PositiveIntegerField(unique=True)
|
|
parent = models.ForeignKey('self', to_field='barcode', blank=True, null=True)
|
|
name = models.CharField(blank=False, max_length=20)
|
|
|
|
class Meta:
|
|
ordering = ('name',)
|
|
|
|
def __str__(self):
|
|
return self.name
|
|
|
|
def __repr__(self):
|
|
return self.__str__()
|
|
|
|
|
|
class Book(models.Model):
|
|
title = models.CharField(max_length=40)
|
|
author = models.ForeignKey(Writer, blank=True, null=True)
|
|
special_id = models.IntegerField(blank=True, null=True, unique=True)
|
|
|
|
class Meta:
|
|
unique_together = ('title', 'author')
|
|
|
|
|
|
class BookXtra(models.Model):
|
|
isbn = models.CharField(max_length=16, unique=True)
|
|
suffix1 = models.IntegerField(blank=True, default=0)
|
|
suffix2 = models.IntegerField(blank=True, default=0)
|
|
|
|
class Meta:
|
|
unique_together = (('suffix1', 'suffix2'))
|
|
abstract = True
|
|
|
|
|
|
class DerivedBook(Book, BookXtra):
|
|
pass
|
|
|
|
|
|
@python_2_unicode_compatible
|
|
class ExplicitPK(models.Model):
|
|
key = models.CharField(max_length=20, primary_key=True)
|
|
desc = models.CharField(max_length=20, blank=True, unique=True)
|
|
|
|
class Meta:
|
|
unique_together = ('key', 'desc')
|
|
|
|
def __str__(self):
|
|
return self.key
|
|
|
|
|
|
@python_2_unicode_compatible
|
|
class Post(models.Model):
|
|
title = models.CharField(max_length=50, unique_for_date='posted', blank=True)
|
|
slug = models.CharField(max_length=50, unique_for_year='posted', blank=True)
|
|
subtitle = models.CharField(max_length=50, unique_for_month='posted', blank=True)
|
|
posted = models.DateField()
|
|
|
|
def __str__(self):
|
|
return self.title
|
|
|
|
|
|
@python_2_unicode_compatible
|
|
class DateTimePost(models.Model):
|
|
title = models.CharField(max_length=50, unique_for_date='posted', blank=True)
|
|
slug = models.CharField(max_length=50, unique_for_year='posted', blank=True)
|
|
subtitle = models.CharField(max_length=50, unique_for_month='posted', blank=True)
|
|
posted = models.DateTimeField(editable=False)
|
|
|
|
def __str__(self):
|
|
return self.title
|
|
|
|
|
|
class DerivedPost(Post):
|
|
pass
|
|
|
|
|
|
@python_2_unicode_compatible
|
|
class BigInt(models.Model):
|
|
biggie = models.BigIntegerField()
|
|
|
|
def __str__(self):
|
|
return six.text_type(self.biggie)
|
|
|
|
|
|
class MarkupField(models.CharField):
|
|
def __init__(self, *args, **kwargs):
|
|
kwargs["max_length"] = 20
|
|
super(MarkupField, self).__init__(*args, **kwargs)
|
|
|
|
def formfield(self, **kwargs):
|
|
# don't allow this field to be used in form (real use-case might be
|
|
# that you know the markup will always be X, but it is among an app
|
|
# that allows the user to say it could be something else)
|
|
# regressed at r10062
|
|
return None
|
|
|
|
|
|
class CustomFieldForExclusionModel(models.Model):
|
|
name = models.CharField(max_length=10)
|
|
markup = MarkupField()
|
|
|
|
|
|
class FlexibleDatePost(models.Model):
|
|
title = models.CharField(max_length=50, unique_for_date='posted', blank=True)
|
|
slug = models.CharField(max_length=50, unique_for_year='posted', blank=True)
|
|
subtitle = models.CharField(max_length=50, unique_for_month='posted', blank=True)
|
|
posted = models.DateField(blank=True, null=True)
|
|
|
|
|
|
@python_2_unicode_compatible
|
|
class Colour(models.Model):
|
|
name = models.CharField(max_length=50)
|
|
|
|
def __iter__(self):
|
|
for number in xrange(5):
|
|
yield number
|
|
|
|
def __str__(self):
|
|
return self.name
|
|
|
|
|
|
class ColourfulItem(models.Model):
|
|
name = models.CharField(max_length=50)
|
|
colours = models.ManyToManyField(Colour)
|
|
|
|
|
|
class ArticleStatusNote(models.Model):
|
|
name = models.CharField(max_length=20)
|
|
status = models.ManyToManyField(ArticleStatus)
|
|
|
|
|
|
class CustomErrorMessage(models.Model):
|
|
name1 = models.CharField(max_length=50,
|
|
validators=[validators.validate_slug],
|
|
error_messages={'invalid': 'Model custom error message.'})
|
|
|
|
name2 = models.CharField(max_length=50,
|
|
validators=[validators.validate_slug],
|
|
error_messages={'invalid': 'Model custom error message.'})
|
|
|
|
def clean(self):
|
|
if self.name1 == 'FORBIDDEN_VALUE':
|
|
raise ValidationError({'name1': [ValidationError('Model.clean() error messages.')]})
|
|
elif self.name1 == 'GLOBAL_ERROR':
|
|
raise ValidationError("Global error message.")
|
|
|
|
|
|
def today_callable_dict():
|
|
return {"last_action__gte": datetime.datetime.today()}
|
|
|
|
|
|
def today_callable_q():
|
|
return models.Q(last_action__gte=datetime.datetime.today())
|
|
|
|
|
|
class Character(models.Model):
|
|
username = models.CharField(max_length=100)
|
|
last_action = models.DateTimeField()
|
|
|
|
|
|
class StumpJoke(models.Model):
|
|
most_recently_fooled = models.ForeignKey(Character, limit_choices_to=today_callable_dict, related_name="+")
|
|
has_fooled_today = models.ManyToManyField(Character, limit_choices_to=today_callable_q, related_name="+")
|
|
|
|
|
|
# Model for #639
|
|
class Photo(models.Model):
|
|
title = models.CharField(max_length=30)
|
|
image = models.FileField(storage=temp_storage, upload_to='tests')
|
|
|
|
# Support code for the tests; this keeps track of how many times save()
|
|
# gets called on each instance.
|
|
def __init__(self, *args, **kwargs):
|
|
super(Photo, self).__init__(*args, **kwargs)
|
|
self._savecount = 0
|
|
|
|
def save(self, force_insert=False, force_update=False):
|
|
super(Photo, self).save(force_insert, force_update)
|
|
self._savecount += 1
|