-from django import forms
-from django.contrib.contenttypes.generic import BaseGenericInlineFormSet
-from django.contrib.contenttypes.models import ContentType
from django.forms.models import ModelFormMetaclass, ModelForm
from django.utils.datastructures import SortedDict
-from philo.models import Attribute
from philo.utils import fattr
-__all__ = ('EntityForm', 'AttributeForm', 'AttributeInlineFormSet')
+__all__ = ('EntityForm',)
def proxy_fields_for_entity_model(entity_model, fields=None, exclude=None, widgets=None, formfield_callback=lambda f, **kwargs: f.formfield(**kwargs)):
_old_metaclass_new = ModelFormMetaclass.__new__
def _new_metaclass_new(cls, name, bases, attrs):
+ formfield_callback = attrs.get('formfield_callback', None)
+ if formfield_callback is None:
+ formfield_callback = lambda f, **kwargs: f.formfield(**kwargs)
new_class = _old_metaclass_new(cls, name, bases, attrs)
- if issubclass(new_class, EntityFormBase) and new_class._meta.model:
- new_class.base_fields.update(proxy_fields_for_entity_model(new_class._meta.model, new_class._meta.fields, new_class._meta.exclude, new_class._meta.widgets)) # don't pass in formfield_callback
+ opts = new_class._meta
+ if issubclass(new_class, EntityFormBase) and opts.model:
+ # "override" proxy fields with declared fields by excluding them if there's a name conflict.
+ exclude = (list(opts.exclude or []) + new_class.declared_fields.keys()) or None
+ proxy_fields = proxy_fields_for_entity_model(opts.model, opts.fields, exclude, opts.widgets, formfield_callback) # don't pass in formfield_callback
+ new_class.proxy_fields = proxy_fields
+ new_class.base_fields.update(proxy_fields)
return new_class
ModelFormMetaclass.__new__ = staticmethod(_new_metaclass_new)
continue
if self._meta.exclude and f.name in self._meta.exclude:
continue
- setattr(instance, f.attname, cleaned_data[f.name])
+ setattr(instance, f.attname, f.get_storage_value(cleaned_data[f.name]))
if commit:
instance.save()
self.save_m2m()
- return instance
-
-
- def apply_data(self, cleaned_data):
- self.value = cleaned_data.get('value', None)
-
- def apply_data(self, cleaned_data):
- if 'value' in cleaned_data and cleaned_data['value'] is not None:
- self.value = cleaned_data['value']
- else:
- self.content_type = cleaned_data.get('content_type', None)
- # If there is no value set in the cleaned data, clear the stored value.
- self.object_id = None
-
- def apply_data(self, cleaned_data):
- if 'value' in cleaned_data and cleaned_data['value'] is not None:
- self.value = cleaned_data['value']
- else:
- self.content_type = cleaned_data.get('content_type', None)
- # If there is no value set in the cleaned data, clear the stored value.
- self.value = []
-
-class AttributeForm(ModelForm):
- """
- This class handles an attribute's fields as well as the fields for its value (if there is one.)
- The fields defined will vary depending on the value type, but the fields for defining the value
- (i.e. value_content_type and value_object_id) will always be defined. Except that value_object_id
- will never be defined. BLARGH!
- """
- def __init__(self, *args, **kwargs):
- super(AttributeForm, self).__init__(*args, **kwargs)
-
- # This is necessary because model forms store changes to self.instance in their clean method.
- # Mutter mutter.
- value = self.instance.value
- self._cached_value_ct = self.instance.value_content_type
- self._cached_value = value
-
- # If there is a value, pull in its fields.
- if value is not None:
- self.value_fields = value.value_formfields()
- self.fields.update(self.value_fields)
-
- def save(self, *args, **kwargs):
- # At this point, the cleaned_data has already been stored on self.instance.
-
- if self.instance.value_content_type != self._cached_value_ct:
- # The value content type has changed. Clear the old value, if there was one.
- if self._cached_value:
- self._cached_value.delete()
-
- # Clear the submitted value, if any.
- self.cleaned_data.pop('value', None)
-
- # Now create a new value instance so that on next instantiation, the form will
- # know what fields to add.
- if self.instance.value_content_type is not None:
- self.instance.value = self.instance.value_content_type.model_class().objects.create()
- elif self.instance.value is not None:
- # The value content type is the same, but one of the value fields has changed.
-
- # Use construct_instance to apply the changes from the cleaned_data to the value instance.
- fields = self.value_fields.keys()
- if set(fields) & set(self.changed_data):
- self.instance.value.construct_instance(**dict([(key, self.cleaned_data[key]) for key in fields]))
- self.instance.value.save()
-
- return super(AttributeForm, self).save(*args, **kwargs)
-
- class Meta:
- model = Attribute
-
-
-class AttributeInlineFormSet(BaseGenericInlineFormSet):
- "Necessary to force the GenericInlineFormset to use the form's save method for new objects."
- def save_new(self, form, commit):
- setattr(form.instance, self.ct_field.get_attname(), ContentType.objects.get_for_model(self.instance).pk)
- setattr(form.instance, self.ct_fk_field.get_attname(), self.instance.pk)
- return form.save()
\ No newline at end of file
+ return instance
\ No newline at end of file
git.ithinksw.org / philo.git / blobdiff