module Virtuaservices::Concerns::Enumerable::ClassMethods

Submodule holding all the static methods add to the current subclass. @author Vincent Courtois <courtois.vincent@outlook.com>

Public Instance Methods

enum_field(field_name, values, options = {}) click to toggle source

Creates the field with the given name, set of possible values, and options. @param field_name [String] the name of the enumerated field. @param values [Array<Symbol>] the possible values of the enumerated field. @param options [Hash<Symbol, Any>] the possible options for the field.

# File lib/virtuaservices/concerns/enumerable.rb, line 16
def enum_field(field_name, values, options = {})
  field :"enum_#{field_name}", type: Symbol, default: options[:default]

  validates :"enum_#{field_name}", inclusion: {in: values.map(&:to_sym), message: 'inclusion'}

  define_method field_name do
    return self["enum_#{field_name}"]
  end

  define_method "#{field_name}=" do |value|
    if values.include? value.to_sym
      self["enum_#{field_name}"] = value.to_sym
    end
  end

  values.map(&:to_sym).each do |value|
    define_method "#{field_name}_#{value}!" do
      self["enum_#{field_name}"] = value
    end

    define_method "#{field_name}_#{value}?" do
      self["enum_#{field_name}"] == value
    end
  end
end