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Contents
require 'closure_tree/columns'
require 'closure_tree/deterministic_ordering'
require 'closure_tree/model'
require 'closure_tree/numeric_deterministic_ordering'
require 'closure_tree/with_advisory_lock'
module ClosureTree
module ActsAsTree
def acts_as_tree(options = {})
class_attribute :closure_tree_options
self.closure_tree_options = {
:ct_base_class => self,
:parent_column_name => 'parent_id',
:dependent => :nullify, # or :destroy or :delete_all -- see the README
:name_column => 'name',
:with_advisory_lock => true
}.merge(options)
raise IllegalArgumentException, "name_column can't be 'path'" if closure_tree_options[:name_column] == 'path'
include ClosureTree::Columns
extend ClosureTree::Columns
include ClosureTree::WithAdvisoryLock
extend ClosureTree::WithAdvisoryLock
# Auto-inject the hierarchy table
# See https://github.com/patshaughnessy/class_factory/blob/master/lib/class_factory/class_factory.rb
class_attribute :hierarchy_class
self.hierarchy_class = ct_class.parent.const_set short_hierarchy_class_name, Class.new(ActiveRecord::Base)
self.hierarchy_class.class_eval <<-RUBY
belongs_to :ancestor, :class_name => "#{ct_class.to_s}"
belongs_to :descendant, :class_name => "#{ct_class.to_s}"
attr_accessible :ancestor, :descendant, :generations
def ==(comparison_object)
comparison_object.instance_of?(self.class) &&
self.attributes == comparison_object.attributes
end
alias :eql? :==
RUBY
self.hierarchy_class.table_name = hierarchy_table_name
include ClosureTree::Model
unless order_option.nil?
include ClosureTree::DeterministicOrdering
include ClosureTree::DeterministicNumericOrdering if order_is_numeric
end
end
end
end
Version data entries
44 entries across 44 versions & 1 rubygems