# This class is inherited by the has_one and belongs_to association classes
module ActiveRecord::Associations::Builder # :nodoc:
class SingularAssociation < Association #:nodoc:
def self.valid_options(options)
super + [:foreign_type, :dependent, :primary_key, :inverse_of, :required]
end
def self.define_accessors(model, reflection)
super
mixin = model.generated_association_methods
name = reflection.name
define_constructors(mixin, name) if reflection.constructable?
mixin.class_eval <<-CODE, __FILE__, __LINE__ + 1
def reload_#{name}
association(:#{name}).force_reload_reader
end
CODE
end
# Defines the (build|create)_association methods for belongs_to or has_one association
def self.define_constructors(mixin, name)
mixin.class_eval <<-CODE, __FILE__, __LINE__ + 1
def build_#{name}(*args, &block)
association(:#{name}).build(*args, &block)
end
def create_#{name}(*args, &block)
association(:#{name}).create(*args, &block)
end
def create_#{name}!(*args, &block)
association(:#{name}).create!(*args, &block)
end
CODE
end
end
end