Module: MongoMapper::Plugins::ActsAsList::ClassMethods

Defined in:
lib/mongo_mapper/plugins/acts_as_list.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/mongo_mapper/plugins/acts_as_list.rb', line 20

def self.included(base)
  include Comparable
end

Instance Method Details

#acts_as_list(options = {}) ⇒ Object 



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# File 'lib/mongo_mapper/plugins/acts_as_list.rb', line 16

def acts_as_list(options = {})
  
  
  
  def self.included(base)
    include Comparable
  end
  
  
  
  configuration = { :column => "position", :scope => {} }
  configuration.update(options) if options.is_a?(Hash)
  configuration[:scope] = "#{configuration[:scope]}_id".intern if 
    configuration[:scope].is_a?(Symbol) && configuration[:scope].to_s !~ /_id$/



  if configuration[:scope].is_a?(Symbol)
    define_method "scope_condition" do
      { configuration[:scope] => send(configuration[:scope].to_s) }.symbolize_keys!
    end
  elsif configuration[:scope].is_a?(Array)
    define_method "scope_condition" do
      configuration[:scope].inject({}) { |memo, column| 
        memo[column.intern] = send(column.intern)
        memo
      }.symbolize_keys!
    end
  else
    define_method "scope_condition" do
      configuration[:scope]
    end
  end
  
  
  
  define_method "position_column" do
    "#{configuration[:column]}"
  end
  
  
  
  key configuration[:column], Integer
  
  
  
  before_destroy :decrement_positions_on_lower_items
  before_create  :add_to_list_bottom
  
  
  
  class_eval <<-EOV          
    def acts_as_list_class
      ::#{self.name}
    end
  EOV
  
  
  
end