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-rw-r--r--djangorestframework/resources.py13
1 files changed, 11 insertions, 2 deletions
diff --git a/djangorestframework/resources.py b/djangorestframework/resources.py
index 68b285b9..d2651036 100644
--- a/djangorestframework/resources.py
+++ b/djangorestframework/resources.py
@@ -78,13 +78,22 @@ class FormResource(Resource):
This can be overridden by a :attr:`form` attribute on the :class:`views.View`.
"""
+ unknown_form_fields = False
+ """
+ Flag to check for unknown fields when validating a form. If set to false and
+ we receive request data that is not expected by the form it raises an
+ :exc:`response.ErrorResponse` with status code 400. If set to true, only
+ expected fields are validated.
+ """
+
def validate_request(self, data, files=None):
"""
Given some content as input return some cleaned, validated content.
Raises a :exc:`response.ErrorResponse` with status code 400 (Bad Request) on failure.
- Validation is standard form validation, with an additional constraint that *no extra unknown fields* may be supplied.
+ Validation is standard form validation, with an additional constraint that *no extra unknown fields* may be supplied
+ if :attr:`self.unknown_form_fields` is ``True``.
On failure the :exc:`response.ErrorResponse` content is a dict which may contain :obj:`'errors'` and :obj:`'field-errors'` keys.
If the :obj:`'errors'` key exists it is a list of strings of non-field errors.
@@ -132,7 +141,7 @@ class FormResource(Resource):
unknown_fields = unknown_fields - set(('csrfmiddlewaretoken', '_accept', '_method')) # TODO: Ugh.
# Check using both regular validation, and our stricter no additional fields rule
- if bound_form.is_valid() and not unknown_fields:
+ if bound_form.is_valid() and (self.unknown_form_fields or not unknown_fields):
# Validation succeeded...
cleaned_data = bound_form.cleaned_data