Module: ClosureTree::HasClosureTree

Defined in:
lib/closure_tree/has_closure_tree.rb

Instance Method Summary collapse

Instance Method Details

#has_closure_tree(options = {}) ⇒ Object Also known as: acts_as_tree


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# File 'lib/closure_tree/has_closure_tree.rb', line 3

def has_closure_tree(options = {})
  options.assert_valid_keys(
    :parent_column_name,
    :dependent,
    :hierarchy_class_name,
    :hierarchy_table_name,
    :name_column,
    :order,
    :touch,
    :with_advisory_lock
  )

  class_attribute :_ct
  self._ct = ClosureTree::Support.new(self, options)

  # 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.hierarchy_class_for_model

  # tests fail if you include Model before HierarchyMaintenance wtf
  include ClosureTree::HierarchyMaintenance
  include ClosureTree::Model
  include ClosureTree::Finders
  include ClosureTree::HashTree
  include ClosureTree::Digraphs

  include ClosureTree::DeterministicOrdering if _ct.order_option?
  include ClosureTree::NumericDeterministicOrdering if _ct.order_is_numeric?
rescue StandardError => e
  # Support Heroku's database-less assets:precompile pre-deploy step:
  raise e unless ENV['DATABASE_URL'].to_s.include?('//user:[email protected]/') && ENV['RAILS_GROUPS'] == 'assets'
end