class Setting < ActiveRecord::Base class SettingNotFound < StandardError end belongs_to :settable, :polymorphic => true include Localized validates_presence_of :key, :kind validates :key, :uniqueness => {:scope => [:settable_id, :settable_type, :locale]} field :key index :key field :kind field :group field :integer_value, :integer field :float_value, :float field :text_value, :text field :string_value, :string field :datetime_value, :datetime field :date_value, :date has_attached :file_value def self.kinds [ :string, :integer, :float, :boolean, :text, :datetime, :date, :file ] end def value setting_kind = self.kind # this will break paperclip 'missing.png' feature, but at least # provides a way to check if an attachment is missing if setting_kind == "file" return nil if !file_value? end self.send("#{setting_kind}_value") end # eg. Setting.global("site-name") def self.global(key, opts = {}) key = key.to_s autocreate = opts.delete(:autocreate) kind = opts.delete(:kind) || :string default = opts.delete(:default) group = (opts.delete(:group) || "global").to_s options = opts.delete(:options) locale = opts.delete(:locale).try(:to_s) query = where(:key => key, :group => group, :settable_id => nil) if locale query = query.where(:locale => locale) end setting = query.first || ( autocreate && create( :key => key, :locale => locale, :kind => kind, :"#{kind}_value" => default, :group => group, :options => options ) ) raise SettingNotFound.new("Setting `#{[group, key].join('/')}` not found for locale `#{locale || 'any'}`") if !setting setting.value || default end def self.update_global(key, value) s = self.find_by_key_and_settable_id(key.to_s, nil) if s s.update_attributes(:value => value) end end field :options, :text serialize :options, Hash # after_initialize do |record| # record.options ||= {} # end end