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Add ignore_case arg to UniqueValidator so that field uniqueness validation can be case insensitive

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This commit is contained in:
Rowan Seymour 2016-10-04 10:08:46 +02:00
parent 0b373be712
commit 1bd218ba52
1 changed files with 4 additions and 2 deletions
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6
rest_framework/validators.py
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@ -42,9 +42,10 @@ class UniqueValidator(object):
""" """
message = _('This field must be unique.') message = _('This field must be unique.')
def __init__(self, queryset, message=None): def __init__(self, queryset, ignore_case=True, message=None):
self.queryset = queryset self.queryset = queryset
self.serializer_field = None self.serializer_field = None
self.ignore_case = ignore_case
self.message = message or self.message self.message = message or self.message
def set_context(self, serializer_field): def set_context(self, serializer_field):
@ -62,7 +63,8 @@ class UniqueValidator(object):
""" """
Filter the queryset to all instances matching the given attribute. Filter the queryset to all instances matching the given attribute.
""" """
filter_kwargs = {self.field_name: value} field_lookup = 'iexact' if self.ignore_case else 'exact'
filter_kwargs = {'%s__%s' % (self.field_name, field_lookup): value}
return qs_filter(queryset, **filter_kwargs) return qs_filter(queryset, **filter_kwargs)
def exclude_current_instance(self, queryset): def exclude_current_instance(self, queryset):