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Versions: 15
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Stored size: 1.19 KB
Contents
# frozen_string_literal: true
require 'rom/relation/graph'
require 'rom/relation/combined'
module ROM
class Relation
# Relation wrapping other relations
#
# @api public
class Wrap < Graph
# Wrap more relations
#
# @see Relation#wrap
#
# @return [Wrap]
#
# @api public
def wrap(*args)
self.class.new(root, nodes + root.wrap(*args).nodes)
end
# Materialize a wrap
#
# @see Relation#call
#
# @return [Loaded]
#
# @api public
def call(*args)
if auto_map?
Loaded.new(self, mapper.(relation.with(auto_map: false, auto_struct: false)))
else
Loaded.new(self, relation.(*args))
end
end
# Return an adapter-specific relation representing a wrap
#
# @abstract
#
# @api private
def relation
raise NotImplementedError
end
# Return if this is a wrap relation
#
# @return [true]
#
# @api private
def wrap?
true
end
private
# @api private
def decorate?(other)
super || other.is_a?(Combined)
end
end
end
end
Version data entries
15 entries across 15 versions & 1 rubygems