Sha256: 65137c6cd69b2834326fa1973d57301fc74c71bd5022cd454f46dc41faa1485d
Contents?: true
Size: 1.27 KB
Versions: 6
Compression:
Stored size: 1.27 KB
Contents
module DataMapper
class Property
class Discriminator < Class
include PassThroughLoadDump
default lambda { |resource, property| resource.model }
required true
# @api private
def bind
model.extend Model unless model < Model
end
module Model
def inherited(model)
super # setup self.descendants
set_discriminator_scope_for(model)
end
def new(*args, &block)
if args.size == 1 && args.first.kind_of?(Hash)
discriminator = properties(repository_name).discriminator
if discriminator_value = args.first[discriminator.name]
model = discriminator.typecast_to_primitive(discriminator_value)
if model.kind_of?(Model) && !model.equal?(self)
return model.new(*args, &block)
end
end
end
super
end
private
def set_discriminator_scope_for(model)
discriminator = self.properties.discriminator
default_scope = model.default_scope(discriminator.repository_name)
default_scope.update(discriminator.name => model.descendants.dup << model)
end
end
end # class Discriminator
end # module Property
end # module DataMapper
Version data entries
6 entries across 6 versions & 2 rubygems