Module: Labelized::LabelizedConcern::ClassMethods

Defined in:
lib/labelized/labelized_concern.rb

Instance Method Summary collapse

Instance Method Details

#labelized(*params) ⇒ Object 



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# File 'lib/labelized/labelized_concern.rb', line 31

def labelized(*params)
  setup_labelized params
  
  # thing.kind
  # thing.kind = ['this', 'that'] # throws Exeption
  # thing.kind = 'this' # OK!
  # thing.label 'this', :kind
  # labelized [:kind, :keywords, :tracks], :scope => [:community_id], :label_class => Label, :labeling_class => Labeling
  #
  class_eval do                    
    define_method('label') do |labels, label_set_name = :label|
      label_class = (labelized_options[:label_class_name] || 'Label').constantize
  
      labels = [labels].flatten
      return [] if labels.empty?
      
      label_class.is_labelized? rescue raise "label_class #{label_class} must be labelized"
      
      self.labels = cache_label_set(label_set_name, label_class.label_scope(self).find_or_build_by_list(labels, self, label_set_name.to_s))
    end
    
    define_method('label_for') do |label_set_name|
      label_set_class = (labelized_options[:label_set_class_name] || 'LabelSet').constantize
      label_set = label_set_class.label_scope(self).find_or_initialize_by_name(label_set_name)
      cache_label_get(label_set_name) || self.labels.where(:label_set_id => label_set.id)
    end
    alias_method :labels_for, :label_for
    
    # Convenience setter to the label_set name. Accepts a single item or an array.
    labelized_label_set_names.map(&:to_s).each do |label_set_name|
      define_method "#{label_set_name}=" do |labels|
        label labels, label_set_name
      end
    
      # Convenience acccessor to the label_set name. If singular will return a single label.
      # Otherwise returns an array of labels.
      define_method "#{label_set_name}" do
        labels = label_for label_set_name
        Labelized::Support.singular?(label_set_name) ? labels[0] : labels
      end

      define_method "#{label_set_name.to_s.singularize}_list" do
        label_for(label_set_name).map(&:to_s)
      end
    end
  end
end