Sha256: 43780c9c553211b72c1662762af39e0d598bf019c42b1dce77b8ae69b83c5458
Contents?: true
Size: 1.75 KB
Versions: 5
Compression:
Stored size: 1.75 KB
Contents
module DataMapper
module Model
class DescendantSet
include Enumerable
# Append a model as a descendant
#
# @param [Model] model
# the descendant model
#
# @return [DescendantSet]
# self
#
# @api private
def <<(model)
@descendants << model unless @descendants.include?(model)
@ancestors << model if @ancestors
self
end
# Iterate over each descendant
#
# @yield [model]
# iterate over each descendant
# @yieldparam [Model] model
# the descendant model
#
# @return [DescendantSet]
# self
#
# @api private
def each
@descendants.each { |model| yield model }
self
end
# Remove a descendant
#
# Also removed the descendant from the ancestors.
#
# @param [Model] model
# the model to remove
#
# @return [Model, nil]
# the model is return if it is a descendant
#
# @api private
def delete(model)
@ancestors.delete(model) if @ancestors
@descendants.delete(model)
end
# Return an Array representation of descendants
#
# @return [Array]
# the descendants
#
# @api private
def to_ary
@descendants.dup
end
private
# Initialize a DescendantSet instance
#
# @param [Model] model
# the base model
# @param [DescendantSet] ancestors
# the ancestors to notify when a descendant is added
#
# @api private
def initialize(model = nil, ancestors = nil)
@descendants = []
@ancestors = ancestors
@descendants << model if model
end
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems