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Code Issues 32 Releases Wiki Activity

Fixed #18166 -- Added form_kwargs support to formsets.

Browse Source 
By specifying form_kwargs when instantiating the formset, or overriding
the `get_form_kwargs` method on a formset class, you can pass extra
keyword arguments to the underlying `Form` instances.

Includes tests and documentation update.
This commit is contained in:
Sergei Maertens
2015-06-04 12:47:43 +02:00
parent 57dbc87ade
commit 238e2ac369
3 changed files with 87 additions and 2 deletions
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13
django/forms/formsets.py
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@@ -54,13 +54,14 @@ class BaseFormSet(object):
A collection of instances of the same Form class.
"""
def __init__(self, data=None, files=None, auto_id='id_%s', prefix=None,
initial=None, error_class=ErrorList):
initial=None, error_class=ErrorList, form_kwargs=None):
self.is_bound = data is not None or files is not None
self.prefix = prefix or self.get_default_prefix()
self.auto_id = auto_id
self.data = data or {}
self.files = files or {}
self.initial = initial
self.form_kwargs = form_kwargs or {}
self.error_class = error_class
self._errors = None
self._non_form_errors = None
@@ -139,9 +140,16 @@ class BaseFormSet(object):
Instantiate forms at first property access.
"""
# DoS protection is included in total_form_count()
forms = [self._construct_form(i) for i in range(self.total_form_count())]
forms = [self._construct_form(i, **self.get_form_kwargs(i))
for i in range(self.total_form_count())]
return forms
def get_form_kwargs(self, index):
"""
Return additional keyword arguments for each individual formset form.
"""
return self.form_kwargs.copy()
def _construct_form(self, i, **kwargs):
"""
Instantiates and returns the i-th form instance in a formset.
@@ -184,6 +192,7 @@ class BaseFormSet(object):
auto_id=self.auto_id,
prefix=self.add_prefix('__prefix__'),
empty_permitted=True,
**self.get_form_kwargs(None)
)
self.add_fields(form, None)
return form