module ActsAsContentHighlightable::Model

Public Instance Methods

acts_as_content_highlightable_on(column_names) click to toggle source
# File lib/acts_as_content_highlightable/model.rb, line 3
def acts_as_content_highlightable_on(column_names)
  column_names = [column_names].flatten
  if not column_names.all? {|column_name| self.column_names.include? column_name.to_s}
    raise ArgumentError, "acts_as_content_highlightable_on: One or more invalid attribute #{column_names}"
  end

  class_eval do
    has_many :content_highlights, :as => :highlightable
    before_save :prepare_for_content_highlights, :if => column_names.map{|column_name| "#{column_name}_changed?"}
  end

  class_eval %{
    def highlightable_columns
      return #{column_names.map(&:to_s)}
    end
    def prepare_for_content_highlights
      #{column_names}.each do |column_name|
        self[column_name.to_sym] = ActsAsContentHighlightable::HtmlNodeParser.new(self[column_name.to_sym]).assign_unique_node_identifiers("data-" + ActsAsContentHighlightable.unique_html_node_identifier_key).body_content
      end
    end
  }
end