Fixed #3557 -- Made `SlugField` inherit from `CharField` so that its `max_length` is properly set. Removed `get_manipulator_field_objs` method since it's already provided by `CharField`. Thanks, Russell Cloran.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@6065 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Gary Wilson Jr 2007-09-08 05:09:39 +00:00
parent be39adeb28
commit 41b3a45fc5
3 changed files with 34 additions and 24 deletions

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@ -79,6 +79,7 @@ answer newbie questions, and generally made Django that much better:
Bryan Chow <bryan at verdjn dot com>
Michal Chruszcz <troll@pld-linux.org>
Ian Clelland <clelland@gmail.com>
Russell Cloran <russell@rucus.net>
colin@owlfish.com
crankycoder@gmail.com
Pete Crosier <pete.crosier@gmail.com>

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@ -906,17 +906,14 @@ class PositiveSmallIntegerField(IntegerField):
def get_manipulator_field_objs(self):
return [oldforms.PositiveSmallIntegerField]
class SlugField(Field):
class SlugField(CharField):
def __init__(self, *args, **kwargs):
kwargs['max_length'] = kwargs.get('max_length', 50)
kwargs.setdefault('validator_list', []).append(validators.isSlug)
# Set db_index=True unless it's been set manually.
if 'db_index' not in kwargs:
kwargs['db_index'] = True
Field.__init__(self, *args, **kwargs)
def get_manipulator_field_objs(self):
return [oldforms.TextField]
super(SlugField, self).__init__(*args, **kwargs)
class SmallIntegerField(IntegerField):
def get_manipulator_field_objs(self):

View File

@ -32,6 +32,7 @@ ARTICLE_STATUS = (
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 __unicode__(self):
@ -45,6 +46,7 @@ class Writer(models.Model):
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)
@ -79,9 +81,11 @@ __test__ = {'API_TESTS': """
>>> f = CategoryForm()
>>> print 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>
>>> print 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>
>>> print f['name']
<input id="id_name" type="text" name="name" maxlength="20" />
@ -89,24 +93,25 @@ __test__ = {'API_TESTS': """
>>> f = CategoryForm(auto_id=False)
>>> print 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>
>>> f = CategoryForm({'name': 'Entertainment', 'url': 'entertainment'})
>>> f = CategoryForm({'name': 'Entertainment', 'slug': 'entertainment', 'url': 'entertainment'})
>>> f.is_valid()
True
>>> f.cleaned_data
{'url': u'entertainment', 'name': u'Entertainment'}
{'url': u'entertainment', 'name': u'Entertainment', 'slug': u'entertainment'}
>>> obj = f.save()
>>> obj
<Category: Entertainment>
>>> Category.objects.all()
[<Category: Entertainment>]
>>> f = CategoryForm({'name': "It's a test", 'url': 'test'})
>>> f = CategoryForm({'name': "It's a test", 'slug': 'its-test', 'url': 'test'})
>>> f.is_valid()
True
>>> f.cleaned_data
{'url': u'test', 'name': u"It's a test"}
{'url': u'test', 'name': u"It's a test", 'slug': u'its-test'}
>>> obj = f.save()
>>> obj
<Category: It's a test>
@ -116,11 +121,11 @@ True
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 = CategoryForm({'name': 'Third test', 'url': 'third'})
>>> f = CategoryForm({'name': 'Third test', 'slug': 'third-test', 'url': 'third'})
>>> f.is_valid()
True
>>> f.cleaned_data
{'url': u'third', 'name': u'Third test'}
{'url': u'third', 'name': u'Third test', 'slug': u'third-test'}
>>> obj = f.save(commit=False)
>>> obj
<Category: Third test>
@ -131,9 +136,9 @@ True
[<Category: Entertainment>, <Category: It's a test>, <Category: Third test>]
If you call save() with invalid data, you'll get a ValueError.
>>> f = CategoryForm({'name': '', 'url': 'foo'})
>>> f = CategoryForm({'name': '', 'slug': '', 'url': 'foo'})
>>> f.errors
{'name': [u'This field is required.']}
{'name': [u'This field is required.'], 'slug': [u'This field is required.']}
>>> f.cleaned_data
Traceback (most recent call last):
...
@ -142,7 +147,7 @@ AttributeError: 'CategoryForm' object has no attribute 'cleaned_data'
Traceback (most recent call last):
...
ValueError: The Category could not be created because the data didn't validate.
>>> f = CategoryForm({'name': '', 'url': 'foo'})
>>> f = CategoryForm({'name': '', 'slug': '', 'url': 'foo'})
>>> f.save()
Traceback (most recent call last):
...
@ -160,6 +165,7 @@ fields with the 'choices' attribute are represented by a ChoiceField.
>>> f = ArticleForm(auto_id=False)
>>> print 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>
@ -210,7 +216,7 @@ current values are inserted as 'initial' data in each Field.
>>> print f
<tr><th>Name:</th><td><input type="text" name="name" value="Mike Royko" maxlength="50" /><br />Use both first and last names.</td></tr>
>>> art = Article(headline='Test article', pub_date=datetime.date(1988, 1, 4), writer=w, article='Hello.')
>>> art = Article(headline='Test article', slug='test-article', pub_date=datetime.date(1988, 1, 4), writer=w, article='Hello.')
>>> art.save()
>>> art.id
1
@ -218,6 +224,7 @@ current values are inserted as 'initial' data in each Field.
>>> f = TestArticleForm(auto_id=False)
>>> print 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>
@ -236,7 +243,7 @@ current values are inserted as 'initial' data in each Field.
<option value="2">It&#39;s a test</option>
<option value="3">Third test</option>
</select> Hold down "Control", or "Command" on a Mac, to select more than one.</li>
>>> f = TestArticleForm({'headline': u'Test headline', 'pub_date': u'1984-02-06', 'writer': u'1', 'article': 'Hello.'})
>>> f = TestArticleForm({'headline': u'Test headline', 'slug': 'test-headline', 'pub_date': u'1984-02-06', 'writer': u'1', 'article': 'Hello.'})
>>> f.is_valid()
True
>>> test_art = f.save()
@ -248,10 +255,11 @@ u'Test headline'
You can create a form over a subset of the available fields
by specifying a 'fields' argument to form_for_instance.
>>> PartialArticleForm = form_for_instance(art, fields=('headline','pub_date'))
>>> f = PartialArticleForm({'headline': u'New headline', 'pub_date': u'1988-01-04'}, auto_id=False)
>>> PartialArticleForm = form_for_instance(art, fields=('headline', 'slug', 'pub_date'))
>>> f = PartialArticleForm({'headline': u'New headline', 'slug': 'new-headline', 'pub_date': u'1988-01-04'}, auto_id=False)
>>> print 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>
>>> f.is_valid()
True
@ -272,6 +280,7 @@ Add some categories and test the many-to-many form output.
>>> f = TestArticleForm(auto_id=False)
>>> print 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>
@ -291,7 +300,7 @@ Add some categories and test the many-to-many form output.
<option value="3">Third test</option>
</select> Hold down "Control", or "Command" on a Mac, to select more than one.</li>
>>> f = TestArticleForm({'headline': u'New headline', 'pub_date': u'1988-01-04',
>>> f = TestArticleForm({'headline': u'New headline', 'slug': u'new-headline', 'pub_date': u'1988-01-04',
... 'writer': u'1', 'article': u'Hello.', 'categories': [u'1', u'2']})
>>> new_art = f.save()
>>> new_art.id
@ -301,7 +310,7 @@ Add some categories and test the many-to-many form output.
[<Category: Entertainment>, <Category: It's a test>]
Now, submit form data with no categories. This deletes the existing categories.
>>> f = TestArticleForm({'headline': u'New headline', 'pub_date': u'1988-01-04',
>>> f = TestArticleForm({'headline': u'New headline', 'slug': u'new-headline', 'pub_date': u'1988-01-04',
... 'writer': u'1', 'article': u'Hello.'})
>>> new_art = f.save()
>>> new_art.id
@ -312,7 +321,7 @@ Now, submit form data with no categories. This deletes the existing categories.
Create a new article, with categories, via the form.
>>> ArticleForm = form_for_model(Article)
>>> f = ArticleForm({'headline': u'The walrus was Paul', 'pub_date': u'1967-11-01',
>>> f = ArticleForm({'headline': u'The walrus was Paul', 'slug': u'walrus-was-paul', 'pub_date': u'1967-11-01',
... 'writer': u'1', 'article': u'Test.', 'categories': [u'1', u'2']})
>>> new_art = f.save()
>>> new_art.id
@ -323,7 +332,7 @@ Create a new article, with categories, via the form.
Create a new article, with no categories, via the form.
>>> ArticleForm = form_for_model(Article)
>>> f = ArticleForm({'headline': u'The walrus was Paul', 'pub_date': u'1967-11-01',
>>> f = ArticleForm({'headline': u'The walrus was Paul', 'slug': u'walrus-was-paul', 'pub_date': u'1967-11-01',
... 'writer': u'1', 'article': u'Test.'})
>>> new_art = f.save()
>>> new_art.id
@ -335,7 +344,7 @@ Create a new article, with no categories, via the form.
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.
>>> ArticleForm = form_for_model(Article)
>>> f = ArticleForm({'headline': u'The walrus was Paul', 'pub_date': u'1967-11-01',
>>> f = ArticleForm({'headline': u'The walrus was Paul', 'slug': 'walrus-was-paul', 'pub_date': u'1967-11-01',
... 'writer': u'1', 'article': u'Test.', 'categories': [u'1', u'2']})
>>> new_art = f.save(commit=False)
@ -359,13 +368,14 @@ the Category model, we can use save_instance() to apply its changes to an
existing Category instance.
>>> class ShortCategory(Form):
... name = CharField(max_length=5)
... slug = CharField(max_length=5)
... url = CharField(max_length=3)
>>> cat = Category.objects.get(name='Third test')
>>> cat
<Category: Third test>
>>> cat.id
3
>>> sc = ShortCategory({'name': 'Third', 'url': '3rd'})
>>> sc = ShortCategory({'name': 'Third', 'slug': 'third', 'url': '3rd'})
>>> save_instance(sc, cat)
<Category: Third>
>>> Category.objects.get(id=3)
@ -378,6 +388,7 @@ the data in the database when the form is instantiated.
>>> f = ArticleForm(auto_id=False)
>>> print 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>
@ -402,6 +413,7 @@ the data in the database when the form is instantiated.
<Writer: Carl Bernstein>
>>> print 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>