Module: ExtraAttribute::ClassMethods

Defined in:
lib/extra_attribute.rb

Instance Method Summary collapse

Instance Method Details

#extra_attributes(column, attribute_arrays) ⇒ Object 



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# File 'lib/extra_attribute.rb', line 3

def extra_attributes(column, attribute_arrays)
  @extra_attributes_column = column.to_s

  class_eval %(
    class << self; attr_accessor :extra_attributes_column end
  )

  attribute_arrays.each do |attr|
    define_method "#{attr}" do
      extra_data ||= JSON.parse(attributes[self.class.extra_attributes_column] ? attributes[self.class.extra_attributes_column] : '{}')
      return extra_data[attr.to_s].present? ? extra_data[attr.to_s] : nil
    end

    define_method "#{attr}=" do |val|
      extra_data ||= JSON.parse(attributes[self.class.extra_attributes_column] ? attributes[self.class.extra_attributes_column] : '{}')
      extra_data[attr.to_s] = val
      self.send("#{self.class.extra_attributes_column}=", extra_data.to_json)
    end
  end
end