Module: MongoDoc::Timestamps

Defined in:
lib/mongo_doc/timestamps.rb

Instance Method Summary collapse

Instance Method Details

#timestamps! ⇒ Object

Create automatic timestamps on a root Document. Timestamps are not implemented for embedded documents.

Two timestamps fields are created: created_at, updated_at

created_at

set on initial save only

updated_at

set on every save



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# File 'lib/mongo_doc/timestamps.rb', line 11

def timestamps!
  [:created_at, :updated_at].each do |name|
    _add_key(name)
    attr_reader name
    class_eval("      def \#{name}=(value)                       # def created_at=(value)\n        if value.kind_of?(String)               #   if value.kind_of?(String)\n          value = Time.cast_from_string(value)  #     value = Time.cast_from_string(value)\n        end                                     #   end\n        @\#{name} = value.nil? ? nil : value.utc #   @created_at = value.nil? ? nil : value.utc\n      end                                       # end\n    RUBY\n  end\n\n  class_eval(<<-RUBY, __FILE__, __LINE__)\n    def _save(safe)\n      if new_record?\n        self.created_at = self.updated_at = Time.now\n      else\n        original_updated_at = updated_at\n        self.updated_at = Time.now\n      end\n      super\n    rescue Mongo::MongoDBError => e\n      if new_record?\n        self.created_at = self.updated_at = nil\n      else\n        self.updated_at = original_updated_at\n      end\n      raise e\n    end\n\n    def _update(selector, data, safe)\n      original_updated_at = updated_at\n      self.updated_at = Time.now\n      data[:updated_at] = updated_at\n      super\n    rescue Mongo::MongoDBError => e\n      self.updated_at = original_updated_at\n      raise e\n    end\n  RUBY\nend\n", __FILE__, __LINE__)