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Contents
# encoding: utf-8
module Mongoid #:nodoc:
module Keys
extend ActiveSupport::Concern
included do
cattr_accessor :primary_key, :_identity
self._identity = { :type => BSON::ObjectID }
delegate \
:_id_type,
:primary_key,
:using_object_ids?, :to => "self.class"
end
module ClassMethods #:nodoc:
# Convenience method for returning the type of the id for this class.
#
# Example:
#
# <tt>Person._id_type</tt>
#
# Returns:
#
# The type of the id.
def _id_type
_identity[:type]
end
# Used for telling Mongoid on a per model basis whether to override the
# default +BSON::ObjectID+ and use a different type. This will be
# expanded in the future for requiring a PkFactory if the type is not a
# +BSON::ObjectID+ or +String+.
#
# Example:
#
# class Person
# include Mongoid::Document
# identity :type => String
# end
def identity(options = {})
self._identity = options
end
# Defines the field that will be used for the id of this +Document+. This
# set the id of this +Document+ before save to a parameterized version of
# the field that was supplied. This is good for use for readable URLS in
# web applications.
#
# Example:
#
# class Person
# include Mongoid::Document
# key :first_name, :last_name
# end
def key(*fields)
self.primary_key = fields
identity(:type => String)
set_callback :save, :before, :identify
end
# Convenience method for determining if we are using +BSON::ObjectIDs+ as
# our id.
#
# Example:
#
# <tt>person.using_object_ids?</tt>
#
# Returns:
#
# true if we are using BSON::ObjectIDs
def using_object_ids?
_id_type == BSON::ObjectID
end
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems