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Contents
# encoding: utf-8
module Mongoid # :nodoc:
module Relations #:nodoc:
# Superclass for all builder objects. Builders are responsible for either
# looking up a relation's target from the database, or creating them from a
# supplied attributes hash.
class Builder
include Threaded::Lifecycle
attr_reader :base, :metadata, :object
# Instantiate the new builder for a relation.
#
# @example Create the builder.
# Builder.new(metadata, { :field => "value })
#
# @param [ Document ] base The base document.
# @param [ Metdata ] metadata The metadata for the relation.
# @param [ Hash, BSON::ObjectId ] object The attributes to build from or
# id to query with.
#
# @since 2.0.0.rc.1
def initialize(base, metadata, object)
@base, @metadata, @object = base, metadata, object
end
protected
# Get the class from the metadata.
#
# @example Get the class.
# builder.klass
#
# @return [ Class ] The class from the metadata.
#
# @since 2.3.2
def klass
@klass ||= metadata.klass
end
# Do we need to perform a database query? It will be so if the object we
# have is not a document.
#
# @example Should we query the database?
# builder.query?
#
# @return [ true, false ] Whether a database query should happen.
#
# @since 2.0.0.rc.1
def query?
obj = Array(object).first
!obj.is_a?(Mongoid::Document) && !obj.nil?
end
end
end
end
Version data entries
169 entries across 77 versions & 4 rubygems