Commit 7be4b9a4 authored by Russell Keith-Magee's avatar Russell Keith-Magee
Browse files

Fixed #8164 -- Fields on a ModelForm are now ordered in the order specified in...

Fixed #8164 -- Fields on a ModelForm are now ordered in the order specified in the fields attribute of the ModelForm's Meta class. Thanks to Alex Gaynor for the patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@10062 bcc190cf-cafb-0310-a4f2-bffc1f526a37
parent 24b9c65d
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+4 −2
Original line number Diff line number Diff line
@@ -149,7 +149,6 @@ def fields_for_model(model, fields=None, exclude=None, formfield_callback=lambda
    fields will be excluded from the returned fields, even if they are listed
    in the ``fields`` argument.
    """
    # TODO: if fields is provided, it would be nice to return fields in that order
    field_list = []
    opts = model._meta
    for f in opts.fields + opts.many_to_many:
@@ -162,7 +161,10 @@ def fields_for_model(model, fields=None, exclude=None, formfield_callback=lambda
        formfield = formfield_callback(f)
        if formfield:
            field_list.append((f.name, formfield))
    return SortedDict(field_list)
    field_dict = SortedDict(field_list)
    if fields:
        field_dict = SortedDict([(f, field_dict[f]) for f in fields if (not exclude) or (exclude and f not in exclude)])
    return field_dict

class ModelFormOptions(object):
    def __init__(self, options=None):
+27 −1
Original line number Diff line number Diff line
@@ -259,7 +259,8 @@ model fields:

2. Use the ``fields`` attribute of the ``ModelForm``'s inner ``Meta``
   class.  This attribute, if given, should be a list of field names
   to include in the form.
   to include in the form. The form will render the fields in the same
   order they are specified in the ``fields`` attribute.

3. Use the ``exclude`` attribute of the ``ModelForm``'s inner ``Meta``
   class.  This attribute, if given, should be a list of field names
@@ -336,6 +337,31 @@ parameter when declaring the form field::
   ...     class Meta:
   ...         model = Article

Changing the order of fields
----------------------------

By default, a ``ModelForm`` will render fields in the same order that
they are defined on the model, with ``ManyToManyField``s appearing last.
If you want to change the order in which fields are rendered, you can
use the ``fields`` attribute on the ``Meta`` class.

The ``fields`` attribute defines the subset of model fields that will be
rendered, and the order in which they will be rendered. For example given this
model::

    class Book(models.Model):
        author = models.ForeignKey(Author)
        title = models.CharField(max_length=100)

the ``author`` field would be rendered first. If we wanted the title field
to be rendered first, we could specify the following ``ModelForm``::

    >>> class BookForm(ModelForm):
    ...     class Meta:
    ...         model = Book
    ...         fields = ['title', 'author']


Overriding the clean() method
-----------------------------

+34 −11
Original line number Diff line number Diff line
@@ -331,6 +331,29 @@ We can also subclass the Meta inner class to change the fields list.
<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_checkbox">Checkbox:</label></th><td><input type="checkbox" name="checkbox" id="id_checkbox" /></td></tr>

# test using fields to provide ordering to the fields
>>> class CategoryForm(ModelForm):
...     class Meta:
...         model = Category
...         fields = ['url', 'name']

>>> CategoryForm.base_fields.keys()
['url', 'name']


>>> print CategoryForm()
<tr><th><label for="id_url">The URL:</label></th><td><input id="id_url" type="text" name="url" maxlength="40" /></td></tr>
<tr><th><label for="id_name">Name:</label></th><td><input id="id_name" type="text" name="name" maxlength="20" /></td></tr>

>>> class CategoryForm(ModelForm):
...     class Meta:
...         model = Category
...         fields = ['slug', 'url', 'name']
...         exclude = ['url']

>>> CategoryForm.base_fields.keys()
['slug', 'name']

# Old form_for_x tests #######################################################

>>> from django.forms import ModelForm, CharField