Displaying 1 result from an estimated 1 matches for "validates_type".
2007 Jul 06
2
validations of "type" when using Single Table Inheritance
...y validate the "type"
field or provide some mechanism to do so? seems like a good way to
corrupt a database. Because the "type" is also a special attribute, I
had to resort to an ugly hack like:
class ActiveRecord::Base
def type_attr
self[:type]
end
def self.validates_type(options={})
validates_inclusion_of :type_attr, options
end
end
so that I could write:
class Fruit < ActiveRecord::Base
validates_type :allow_nil => true,
:in => %w{ Apple } # could be dynamic
subclass_of but make faster!
(obviously th...