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Versions: 6
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Contents
module ActiveEnum
module ActsAsEnum
def self.included(base)
base.extend MacroMethods
end
module MacroMethods
def acts_as_enum(options={})
extend ClassMethods
class_inheritable_accessor :active_enum_options
self.active_enum_options = options.reverse_merge(:name_column => 'name')
scope :enum_values, select("#{primary_key}, #{active_enum_options[:name_column]}").
where(active_enum_options[:conditions]).
order("#{primary_key} #{active_enum_options[:order]}")
end
end
module ClassMethods
def ids
enum_values.map {|v| v.id }
end
def names
enum_values.map {|v| v.send(active_enum_options[:name_column]) }
end
def to_select
enum_values.map {|v| [v.send(active_enum_options[:name_column]), v.id] }
end
def [](index)
if index.is_a?(Fixnum)
v = lookup_by_id(index)
v.send(active_enum_options[:name_column]) unless v.blank?
else
v = lookup_by_name(index)
v.id unless v.blank?
end
end
private
def lookup_by_id(index)
enum_values.find_by_id(index)
end
def lookup_by_name(index)
enum_values.where("#{active_enum_options[:name_column]} like ?", index.to_s).first
end
end
end
end
ActiveRecord::Base.send :include, ActiveEnum::ActsAsEnum
Version data entries
6 entries across 6 versions & 1 rubygems