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Contents
module ActiveFedora::Associations::Builder
class HasMany < CollectionAssociation #:nodoc:
self.macro = :has_many
self.valid_options += [:dependent, :inverse_of]
def build
reflection = super
configure_dependency
reflection
end
def self.define_readers(mixin, name)
super
mixin.redefine_method("#{name.to_s.singularize}_ids") do
association(name).ids_reader
end
end
def self.define_writers(mixin, name)
super
mixin.redefine_method("#{name.to_s.singularize}_ids=") do |ids|
association(name).ids_writer(ids)
end
end
private
def configure_dependency
if options[:dependent]
unless [:destroy, :delete_all, :nullify, :restrict].include?(options[:dependent])
raise ArgumentError, "The :dependent option expects either :destroy, :delete_all, " \
":nullify or :restrict (#{options[:dependent].inspect})"
end
send("define_#{options[:dependent]}_dependency_method")
model.before_destroy dependency_method_name
end
end
def define_destroy_dependency_method
name = self.name
model.send(:define_method, dependency_method_name) do
send(name).delete_all
end
end
def define_delete_all_dependency_method
name = self.name
model.send(:define_method, dependency_method_name) do
send(name).delete_all
end
end
alias :define_nullify_dependency_method :define_delete_all_dependency_method
def define_restrict_dependency_method
name = self.name
model.send(:define_method, dependency_method_name) do
raise ActiveRecord::DeleteRestrictionError.new(name) unless send(name).empty?
end
end
def dependency_method_name
"has_many_dependent_for_#{name}"
end
end
end
Version data entries
16 entries across 16 versions & 1 rubygems