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Code Issues 32 Releases Wiki Activity

[soc2009/model-validation] Tests now pass for validate_unique

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git-svn-id: http://code.djangoproject.com/svn/django/branches/soc2009/model-validation@10886 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Honza Král 2009-06-02 00:38:13 +00:00
parent 41bf859b67
commit 2f8f8bf531
2 changed files with 27 additions and 21 deletions
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44
django/db/models/base.py
View File

@ -18,8 +18,10 @@ from django.db.models.options import Options
from django.db import connection, transaction, DatabaseError
from django.db.models import signals
from django.db.models.loading import register_models, get_model
from django.utils.translation import ugettext_lazy as _
from django.utils.functional import curry
from django.utils.encoding import smart_str, force_unicode, smart_unicode
from django.utils.text import get_text_list, capfirst
from django.conf import settings
@ -649,20 +651,22 @@ class Model(object):
lookup_kwargs = {}
for field_name in unique_check:
lookup_value = getattr(self, field_name)
# ModelChoiceField will return an object instance rather than
# a raw primary key value, so convert it to a pk value before
# using it in a lookup.
if isinstance(lookup_value, Model):
lookup_value = lookup_value.pk
f = self._meta.get_field(field_name)
lookup_value = getattr(self, f.attname)
if f.null and lookup_value is None:
continue
lookup_kwargs[str(field_name)] = lookup_value
# some fields were skipped, no reason to do the check
if len(unique_check) != len(lookup_kwargs.keys()):
continue
qs = self.__class__._default_manager.filter(**lookup_kwargs)
# Exclude the current object from the query if we are editing an
# instance (as opposed to creating a new one)
if not getattr(self, '__adding', False) and self.pk is not None:
qs = qs.exclude(pk=self.instance.pk)
if not getattr(self, '_adding', False) and self.pk is not None:
qs = qs.exclude(pk=self.pk)
# This cute trick with extra/values is the most efficient way to
# tell if a particular query returns any results.
@ -681,20 +685,20 @@ class Model(object):
lookup_kwargs = {}
# there's a ticket to add a date lookup, we can remove this special
# case if that makes it's way in
date = getattr(self, unique_for)
if lookup_type == 'date':
date = self.cleaned_data[unique_for]
lookup_kwargs['%s__day' % unique_for] = date.day
lookup_kwargs['%s__month' % unique_for] = date.month
lookup_kwargs['%s__year' % unique_for] = date.year
else:
lookup_kwargs['%s__%s' % (unique_for, lookup_type)] = getattr(self.cleaned_data[unique_for], lookup_type)
lookup_kwargs[field] = self.cleaned_data[field]
lookup_kwargs['%s__%s' % (unique_for, lookup_type)] = getattr(date, lookup_type)
lookup_kwargs[field] = getattr(self, field)
qs = self.instance.__class__._default_manager.filter(**lookup_kwargs)
qs = self.__class__._default_manager.filter(**lookup_kwargs)
# Exclude the current object from the query if we are editing an
# instance (as opposed to creating a new one)
if self.instance.pk is not None:
qs = qs.exclude(pk=self.instance.pk)
if not getattr(self, '_adding', False) and self.pk is not None:
qs = qs.exclude(pk=self.pk)
# This cute trick with extra/values is the most efficient way to
# tell if a particular query returns any results.
@ -705,19 +709,21 @@ class Model(object):
return errors
def date_error_message(self, lookup_type, field, unique_for):
opts = self._meta
return _(u"%(field_name)s must be unique for %(date_field)s %(lookup)s.") % {
'field_name': unicode(self.fields[field].label),
'date_field': unicode(self.fields[unique_for].label),
'field_name': unicode(capfirst(opts.get_field(field).verbose_name)),
'date_field': unicode(capfirst(opts.get_field(unique_for).verbose_name)),
'lookup': lookup_type,
}
def unique_error_message(self, unique_check):
model_name = capfirst(self.instance._meta.verbose_name)
opts = self._meta
model_name = capfirst(opts.verbose_name)
# A unique field
if len(unique_check) == 1:
field_name = unique_check[0]
field_label = self.fields[field_name].label
field_label = capfirst(opts.get_field(field_name).verbose_name)
# Insert the error into the error dict, very sneaky
return _(u"%(model_name)s with this %(field_label)s already exists.") % {
'model_name': unicode(model_name),
@ -725,7 +731,7 @@ class Model(object):
}
# unique_together
else:
field_labels = [self.fields[field_name].label for field_name in unique_check]
field_labels = map(lambda f: capfirst(opts.get_field(f).verbose_name), unique_check)
field_labels = get_text_list(field_labels, _('and'))
return _(u"%(model_name)s with this %(field_label)s already exists.") % {
'model_name': unicode(model_name),

4
django/forms/models.py
View File

@ -227,10 +227,10 @@ class BaseModelForm(BaseForm):
# if we didn't get an instance, instantiate a new one
self.instance = opts.model()
object_data = {}
self.instance.__adding = True
self.instance._adding = True
else:
self.instance = instance
self.instance.__adding = False
self.instance._adding = False
object_data = model_to_dict(instance, opts.fields, opts.exclude)
# if initial was provided, it should override the values from instance
if initial is not None: