Sha256: 50bcbfa5f610e7fad9bfa428ac9d5fdfc87119abbceb18e9fd3fcf4716b4b586
Contents?: true
Size: 1.88 KB
Versions: 31
Compression:
Stored size: 1.88 KB
Contents
# encoding: utf-8
module Mongoid
class Criteria
module Queryable
# Allows for easy delegation of queryable queryable instance methods to a
# specific method.
module Forwardable
# Tells queryable with method on the class to delegate to when calling an
# original selectable or optional method on the class.
#
# @example Tell queryable where to select from.
# class Band
# extend Queryable::Forwardable
# select_with :criteria
#
# def self.criteria
# Query.new
# end
# end
#
# @param [ Symbol ] receiver The name of the receiver method.
#
# @return [ Array<Symbol> ] The names of the forwarded methods.
#
# @since 1.0.0
def select_with(receiver)
(Selectable.forwardables + Optional.forwardables).each do |name|
__forward__(name, receiver)
end
end
private
# Forwards the method name to the provided receiver method.
#
# @api private
#
# @example Define the forwarding.
# Model.__forward__(:exists, :criteria)
#
# @param [ Symbol ] name The name of the method.
# @param [ Symbol ] receiver The name of the receiver method.
#
# @since 1.0.0
def __forward__(name, receiver)
if self.class == Module
module_eval <<-SEL, __FILE__, __LINE__ + 1
def #{name}(*args, &block)
#{receiver}.__send__(:#{name}, *args, &block)
end
SEL
else
singleton_class.class_eval <<-SEL, __FILE__, __LINE__ + 1
def #{name}(*args, &block)
#{receiver}.__send__(:#{name}, *args, &block)
end
SEL
end
end
end
end
end
end
Version data entries
31 entries across 29 versions & 2 rubygems