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Contents
module MongoMapper
module Associations
class Base
attr_reader :type, :name, :options
def initialize(type, name, options = {})
@type, @name, @options = type, name, options
end
def class_name
@class_name ||= begin
if cn = options[:class_name]
cn
elsif many?
name.to_s.singularize.camelize
else
name.to_s.camelize
end
end
end
def klass
@klass ||= class_name.constantize
end
def many?
@many_type ||= @type == :many
end
def belongs_to?
@belongs_to_type ||= @type == :belongs_to
end
def polymorphic?
!!@options[:polymorphic]
end
def as?
!!@options[:as]
end
def type_key_name
@type_key_name ||= many? ? '_type' : "#{as}_type"
end
def as
@options[:as] || self.name
end
def foreign_key
@options[:foreign_key] || "#{name}_id"
end
def ivar
@ivar ||= "@_#{name}"
end
def embeddable?
many? && klass.embeddable?
end
def proxy_class
@proxy_class ||= begin
if many?
if self.klass.embeddable?
polymorphic? ? ManyEmbeddedPolymorphicProxy : ManyEmbeddedProxy
else
if polymorphic?
ManyPolymorphicProxy
elsif as?
ManyDocumentsAsProxy
else
ManyProxy
end
end
else
polymorphic? ? BelongsToPolymorphicProxy : BelongsToProxy
end
end # end begin
end # end proxy_class
end
end
end
Version data entries
23 entries across 23 versions & 6 rubygems