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====================
Model Form Functions
====================
Model Form API reference. For introductory material about model forms, see the
:doc:`/topics/forms/modelforms` topic guide.
.. module:: django.forms.models
:synopsis: Django's functions for building model forms and formsets.
.. function:: modelform_factory(model, form=ModelForm, fields=None, exclude=None, formfield_callback=None, widgets=None, localized_fields=None, labels=None, help_texts=None, error_messages=None, field_classes=None)
Returns a :class:`~django.forms.ModelForm` class for the given ``model``.
You can optionally pass a ``form`` argument to use as a starting point for
constructing the ``ModelForm``.
``fields`` is an optional list of field names. If provided, only the named
fields will be included in the returned fields.
``exclude`` is an optional list of field names. If provided, the named
fields will be excluded from the returned fields, even if they are listed
in the ``fields`` argument.
``formfield_callback`` is a callable that takes a model field and returns
a form field.
``widgets`` is a dictionary of model field names mapped to a widget.
``localized_fields`` is a list of names of fields which should be localized.
``labels`` is a dictionary of model field names mapped to a label.
``help_texts`` is a dictionary of model field names mapped to a help text.
``error_messages`` is a dictionary of model field names mapped to a
dictionary of error messages.
``field_classes`` is a dictionary of model field names mapped to a form
field class.
See :ref:`modelforms-factory` for example usage.
You must provide the list of fields explicitly, either via keyword arguments
``fields`` or ``exclude``, or the corresponding attributes on the form's
inner ``Meta`` class. See :ref:`modelforms-selecting-fields` for more
information. Omitting any definition of the fields to use will result in
an :exc:`~django.core.exceptions.ImproperlyConfigured` exception.
.. versionadded:: 1.9
The ``field_classes`` keyword argument was added.
.. function:: modelformset_factory(model, form=ModelForm, formfield_callback=None, formset=BaseModelFormSet, extra=1, can_delete=False, can_order=False, max_num=None, fields=None, exclude=None, widgets=None, validate_max=False, localized_fields=None, labels=None, help_texts=None, error_messages=None, min_num=None, validate_min=False, field_classes=None)
Returns a ``FormSet`` class for the given ``model`` class.
Arguments ``model``, ``form``, ``fields``, ``exclude``,
``formfield_callback``, ``widgets``, ``localized_fields``, ``labels``,
``help_texts``, ``error_messages``, and ``field_classes`` are all passed
through to :func:`~django.forms.models.modelform_factory`.
Arguments ``formset``, ``extra``, ``max_num``, ``can_order``,
``can_delete`` and ``validate_max`` are passed through to
:func:`~django.forms.formsets.formset_factory`. See :ref:`formsets` for
details.
See :ref:`model-formsets` for example usage.
.. versionadded:: 1.9
The ``field_classes`` keyword argument was added.
.. function:: inlineformset_factory(parent_model, model, form=ModelForm, formset=BaseInlineFormSet, fk_name=None, fields=None, exclude=None, extra=3, can_order=False, can_delete=True, max_num=None, formfield_callback=None, widgets=None, validate_max=False, localized_fields=None, labels=None, help_texts=None, error_messages=None, min_num=None, validate_min=False, field_classes=None)
Returns an ``InlineFormSet`` using :func:`modelformset_factory` with
defaults of ``formset=``:class:`~django.forms.models.BaseInlineFormSet`,
``can_delete=True``, and ``extra=3``.
If your model has more than one :class:`~django.db.models.ForeignKey` to
the ``parent_model``, you must specify a ``fk_name``.
See :ref:`inline-formsets` for example usage.
.. versionadded:: 1.9
The ``field_classes`` keyword argument was added.
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