Module: CFoundry::V2::ModelMagic::Attribute

Included in:
CFoundry::V2::ModelMagic
Defined in:
lib/cfoundry/v2/model_magic/attribute.rb

Instance Method Summary collapse

Instance Method Details

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



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# File 'lib/cfoundry/v2/model_magic/attribute.rb', line 3

def attribute(name, type, opts = {})
  attributes[name] = opts
  json_name = opts[:at] || name

  default = opts[:default]

  if has_default = opts.key?(:default)
    defaults[name] = default
  end

  #
  # def ATTRIBUTE
  #
  define_method(name) do
    return @cache[name] if @cache.key?(name)
    return nil unless persisted?

    @cache[name] =
      if manifest[:entity].key?(json_name)
        manifest[:entity][json_name]
      else
        default
      end
  end

  #
  # def ATTRIBUTE=
  #
  define_method(:"#{name}=") do |val|
    unless has_default && val == default
      CFoundry::Validator.validate_type(val, type)
    end

    @cache[name] = val

    @manifest ||= {}
    @manifest[:entity] ||= {}

    old = @manifest[:entity][json_name]
    @changes[name] = [old, val] if old != val
    @manifest[:entity][json_name] = val

    @diff[json_name] = val
  end
end