Class: ActiveRecord::Base

Inherits:

Object

• Object
• ActiveRecord::Base

Defined in:

lib/spree_core/enumerable_constants.rb

Direct Known Subclasses

Address, Adjustment, Asset, Calculator, Configuration, Country, Creditcard, InventoryUnit, LineItem, LogEntry, MailMethod, OptionType, OptionValue, Order, Payment, PaymentMethod, Preference, Product, ProductGroup, ProductOptionType, ProductProperty, ProductScope, Property, Prototype, ReturnAuthorization, Role, Shipment, ShippingCategory, ShippingMethod, State, StateEvent, TaxCategory, TaxRate, Taxon, Taxonomy, Tracker, User, Variant, Zone, ZoneMember

Class Method Summary

• .enumerable_constant(attribute_name, options = {}) ⇒ Object

Class Method Details

.enumerable_constant(attribute_name, options = {}) ⇒ Object

Raises:

• (ArgumentError)

# File 'lib/spree_core/enumerable_constants.rb', line 146

def self.enumerable_constant(attribute_name, options={})
  raise ArgumentError, "you must specify a list of constants" unless options[:constants]
  set_name = attribute_name.to_s.camelize
  set_class = "#{self.name}::#{set_name}"

  constant_definitions = ""
  options[:constants].each do |constant|
    if constant.is_a? Hash
      # puts "hash"
      constant_name = constant.to_a[0][0]
      display_name = constant.to_a[0][1]
      # puts "constant name: #{constant_name}"
      # puts "display name: #{display_name}"
      # puts "c name: #{constant_name.to_s.underscore.upcase}"
      constant_definitions << "constant '#{constant_name.to_s.underscore.upcase}', nil, '#{display_name}'\n"
    else
      # puts "constant '#{constant.to_s.underscore.upcase}'\n"
      constant_definitions << "constant '#{constant.to_s.underscore.upcase}'\n"
    end
  end

  # allow for :connector and :skip_last_comma as used in Array#to_sentence
  if options[:connector]
    connector = options[:connector]
  else
    connector = 'or'
  end
  unless options[:skip_last_comma].kind_of? NilClass
    skip_last_comma = options[:skip_last_comma]
  else
    skip_last_comma = true
  end

  if options[:base]
    use_base = options[:base]
  else
    use_base = 1
  end

  # keep glue_text for back compat
  if options[:glue_text]
    connector = options[:glue_text].strip
  end

  class_eval <<-EOF
    class #{set_name} < EnumerableConstant::Base
      base #{use_base}
      #{constant_definitions}
    end
  EOF

  should_be_in_text = set_class.constantize.names.to_sentence :words_connector => connector, :last_word_connector => skip_last_comma

  unless options[:no_validation]
    class_eval <<-EOF
      validates :#{attribute_name.to_s}, :presence => {
        :in => #{set_name}::values,
        :message => "should be #{should_be_in_text}"
        }
    EOF
  end
end