Module: CodeBox::CodeAttribute::ClassMethods

Defined in:
lib/code-box/code_attribute.rb

Constant Summary collapse

DefaultOptions =
{
  foreign_code_attribute: :code,
  lookup_type:            :i18n,
  code_attribute_suffix:  'code',
  enum:                   false,
}

Instance Method Summary collapse

Instance Method Details

#code_attribute(*code_names) ⇒ Object Also known as: belongs_to_code



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# File 'lib/code-box/code_attribute.rb', line 49

def code_attribute(*code_names)
  options                = code_names.extract_options!
  opts                   = DefaultOptions.merge(options)
  lookup_type            = opts.delete(:lookup_type)
  code_attr_suffix       = (opts.delete(:code_attribute_suffix) || "code").to_s
  foreign_code_attr_name = opts.delete(:foreign_code_attribute)
  enum                   = opts.delete(:enum)



  code_names.each do |code_name|
    opts_copy = opts.dup
    code_attr_name  = (opts_copy.delete(:attribute_name) || "#{code_name}_#{code_attr_suffix}").to_s
    code_class_name = opts_copy.delete(:class_name) || "::Codes::#{code_name.to_s.camelize}"

    case lookup_type
      when :lookup

        case enum
          when :set
            class_eval "              # getter\n              def \#{code_name}\n                codes = \#{code_attr_name}.split(',').map(&:strip)\n                codes.map{ |code| \#{code_class_name}.for_code(code) }\n              end\n\n              # setter\n              def \#{code_name}=(code_obj)\n                code_objs = Array(code_obj)\n                value     = code_objs.map{ |code_obj| code_obj.\#{foreign_code_attr_name} }.join(',')\n                self.\#{code_attr_name} = value\n              end\n\n              # getter raw\n              # not getter raw - it's defined already\n\n              def \#{code_attr_name}_list=(codes)\n                self.\#{code_attr_name} = Array(codes).join(',')\n              end\n            RUBY_\n          when :binary\n            raise ArgumentError, \"#:binary is not yet supported enum option\"\n          when false\n            class_eval <<-RUBY_\n              # getter\n              def \#{code_name}\n                \#{code_class_name}.for_code(\#{code_attr_name})\n                end\n\n              # setter\n              def \#{code_name}=(code)\n                value = code.\#{foreign_code_attr_name}\n                self.\#{code_attr_name} = value\n              end\n            RUBY_\n          else\n            raise ArgumentError, \"\#{enum} is not a valid enum: option\"\n        end\n\n      when :associated\n        association_options = opts_copy.merge({\n            :class_name  => \"\#{code_class_name}\",\n            :foreign_key => \"\#{code_attr_name}\".to_sym,\n            :primary_key => \"\#{foreign_code_attr_name}\"\n        })\n        belongs_to \"\#{code_name}\".to_sym, association_options\n\n      when :i18n\n        class_eval <<-RUBY_\n          # getter\n          def \#{code_name}(locale=I18n.locale)\n            code = self.\#{code_attr_name}\n            self.class.translate_\#{code_attr_name}(code, :locale => locale)\n          end\n\n          # setter\n          def \#{code_name}=(code)\n            raise \"\#{code_name} is a i18n code and can not be set. Use the the correct method '\#{code_attr_name}='' instead.\"\n          end\n\n          # translator\n          class << self\n            def translate_\#{code_attr_name}(*code)\n              options           = code.extract_options!\n              locale            = options[:locale] || I18n.locale\n              codes             = code.first\n              is_paramter_array = codes.kind_of? Array\n\n              codes = Array(codes)\n              translated_codes = codes.map { |code|\n                code_key = code.nil? ? :null_value : code\n                I18n.t(\"\\\#{self._code_box_i18n_model_segment}.values.\\\#{self.name.underscore}.\#{code_attr_name}.\\\#{code_key}\", :locale => locale)\n              }\n\n              if options[:build] == :zip\n                translated_codes.zip(codes)\n              else\n                is_paramter_array ? translated_codes : translated_codes.first\n              end\n            end\n          end\n        RUBY_\n      else\n        raise ArgumentError, \"'\#{lookup_type}' is not valid. Must be one of [:code_cache, :association]\"\n    end\n  end\nend\n"