return value
elif isinstance(value, list):
return ",".join(value)
def to_python(self, value):
if value is not None:
return value if isinstance(value, list) else value.split(',')
return ''
def contribute_to_class(self, cls, name):
super(MultiSelectField, self).contribute_to_class(cls, name)
if self.choices:
func = lambda self, fieldname = name, choicedict = dict(self.choices): ",".join([choicedict.get(value, value) for value in getattr(self, fieldname)])
setattr(cls, 'get_%s_display' % self.name, func)
def validate(self, value, model_instance):
arr_choices = self.get_choices_selected(self.get_choices_default())
for opt_select in value:
if (int(opt_select) not in arr_choices): # the int() here is for comparing with integer choices
raise exceptions.ValidationError(self.error_messages['invalid_choice'] % value)
return
def get_choices_selected(self, arr_choices=''):
if not arr_choices:
return False
list = []
for choice_selected in arr_choices:
list.append(choice_selected[0])
return list
def value_to_string(self, obj):
value = self._get_val_from_obj(obj)
return self.get_db_prep_value(value)
