Module: Chimera::Attributes::ClassMethods

Defined in:
lib/chimera/attributes.rb

Instance Method Summary collapse

Instance Method Details

#attribute(name, type = nil, extra_opts = {}) ⇒ Object

available types include: model



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# File 'lib/chimera/attributes.rb', line 14

def attribute(name, type = nil, extra_opts={})
  @defined_attributes ||= {}
  @defined_attributes[name.to_sym] = [type, extra_opts]
  define_method("#{name}") do
    return nil unless @attributes
    if type == :model
      @cached_attributes ||= {}
      @cached_attributes[name.to_sym] ||= begin
        model_id = @attributes[name.to_sym]
        klass = extra_opts[:class]
        if model_id && klass
          eval(klass.to_s.camelize).find(model_id)
        end
      end
    else
      @attributes[name.to_sym]
    end
  end
  define_method("#{name}=") do |val|
    return nil unless @attributes
    if type == :model
      @cached_attributes ||= {}
      @cached_attributes.delete(name.to_sym)
      if val.respond_to?(:id)
        @attributes[name.to_sym] = val.id
      else
        @attributes.delete(name.to_sym)
      end
    else @attributes
      @attributes[name.to_sym] = val
    end
  end
end

#defined_attributes ⇒ Object 



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# File 'lib/chimera/attributes.rb', line 9

def defined_attributes
  @defined_attributes || {}
end