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newforms: Added initial implementation of form_for_model and form_for…

…_fields

git-svn-id: http://code.djangoproject.com/svn/django/trunk@4205 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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commit 6001974e4501d7d8a7fcdfb11776bfb81d024754 1 parent 0a7d8b1
@adrianholovaty adrianholovaty authored
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6 django/db/models/fields/__init__.py
@@ -333,6 +333,12 @@ def _get_choices(self):
return self._choices
choices = property(_get_choices)
+ def formfield(self):
+ "Returns a django.newforms.Field instance for this database Field."
+ from django.newforms import CharField
+ # TODO: This is just a temporary default during development.
+ return CharField(label=capfirst(self.verbose_name))
+
class AutoField(Field):
empty_strings_allowed = False
def __init__(self, *args, **kwargs):
View
16 django/newforms/models.py
@@ -1,13 +1,19 @@
"""
-Helper functions for creating Forms from Django models and database field objects.
+Helper functions for creating Form classes from Django models
+and database field objects.
"""
+from forms import BaseForm, DeclarativeFieldsMetaclass, SortedDictFromList
+
__all__ = ('form_for_model', 'form_for_fields')
def form_for_model(model):
- "Returns a Form instance for the given Django model class."
- raise NotImplementedError
+ "Returns a Form class for the given Django model class."
+ opts = model._meta
+ fields = SortedDictFromList([(f.name, f.formfield()) for f in opts.fields + opts.many_to_many])
+ return type(opts.object_name + 'Form', (BaseForm,), {'fields': fields, '_model_opts': opts})
def form_for_fields(field_list):
- "Returns a Form instance for the given list of Django database field instances."
- raise NotImplementedError
+ "Returns a Form class for the given list of Django database field instances."
+ fields = SortedDictFromList([(f.name, f.formfield()) for f in field_list])
+ return type('FormForFields', (BaseForm,), {'fields': fields})
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0  tests/modeltests/model_forms/__init__.py
No changes.
View
44 tests/modeltests/model_forms/models.py
@@ -0,0 +1,44 @@
+"""
+34. Generating HTML forms from models
+
+Django provides shortcuts for creating Form objects from a model class.
+"""
+
+from django.db import models
+
+class Category(models.Model):
+ name = models.CharField(maxlength=20)
+ url = models.CharField('The URL', maxlength=20)
+
+ def __str__(self):
+ return self.name
+
+class Article(models.Model):
+ headline = models.CharField(maxlength=50)
+ pub_date = models.DateTimeField()
+ categories = models.ManyToManyField(Category)
+
+ def __str__(self):
+ return self.headline
+
+__test__ = {'API_TESTS': """
+>>> from django.newforms import form_for_model
+>>> CategoryForm = form_for_model(Category)
+>>> f = CategoryForm()
+>>> print f
+<tr><th><label for="id_id">ID:</label></th><td><input type="text" name="id" id="id_id" /></td></tr>
+<tr><th><label for="id_name">Name:</label></th><td><input type="text" name="name" id="id_name" /></td></tr>
+<tr><th><label for="id_url">The URL:</label></th><td><input type="text" name="url" id="id_url" /></td></tr>
+>>> print f.as_ul()
+<li><label for="id_id">ID:</label> <input type="text" name="id" id="id_id" /></li>
+<li><label for="id_name">Name:</label> <input type="text" name="name" id="id_name" /></li>
+<li><label for="id_url">The URL:</label> <input type="text" name="url" id="id_url" /></li>
+>>> print f['name']
+<input type="text" name="name" id="id_name" />
+
+>>> f = CategoryForm(auto_id=False)
+>>> print f.as_ul()
+<li>ID: <input type="text" name="id" /></li>
+<li>Name: <input type="text" name="name" /></li>
+<li>The URL: <input type="text" name="url" /></li>
+"""}
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