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heartcombo--devise/lib/devise/mapping.rb
2010-08-23 09:05:40 -03:00

105 lines
3.2 KiB
Ruby

module Devise
# Responsible for handling devise mappings and routes configuration. Each
# resource configured by devise_for in routes is actually creating a mapping
# object. You can refer to devise_for in routes for usage options.
#
# The required value in devise_for is actually not used internally, but it's
# inflected to find all other values.
#
# map.devise_for :users
# mapping = Devise.mappings[:user]
#
# mapping.name #=> :user
# # is the scope used in controllers and warden, given in the route as :singular.
#
# mapping.as #=> "users"
# # how the mapping should be search in the path, given in the route as :as.
#
# mapping.to #=> User
# # is the class to be loaded from routes, given in the route as :class_name.
#
# mapping.modules #=> [:authenticatable]
# # is the modules included in the class
#
class Mapping #:nodoc:
attr_reader :singular, :plural, :path, :controllers, :path_names, :class_name, :sign_out_via
alias :name :singular
# Receives an object and find a scope for it. If a scope cannot be found,
# raises an error. If a symbol is given, it's considered to be the scope.
def self.find_scope!(duck)
case duck
when String, Symbol
return duck
when Class
Devise.mappings.each_value { |m| return m.name if duck <= m.to }
else
Devise.mappings.each_value { |m| return m.name if duck.is_a?(m.to) }
end
raise "Could not find a valid mapping for #{duck}"
end
def initialize(name, options) #:nodoc:
@plural = (options[:as] ? "#{options[:as]}_#{name}" : name).to_sym
@singular = (options[:singular] || @plural.to_s.singularize).to_sym
@class_name = (options[:class_name] || name.to_s.classify).to_s
@ref = ActiveSupport::Dependencies.ref(@class_name)
@path = (options[:path] || name).to_s
@path_prefix = options[:path_prefix]
mod = options[:module] || "devise"
@controllers = Hash.new { |h,k| h[k] = "#{mod}/#{k}" }
@controllers.merge!(options[:controllers] || {})
@path_names = Hash.new { |h,k| h[k] = k.to_s }
@path_names.merge!(:registration => "")
@path_names.merge!(options[:path_names] || {})
@sign_out_via = options[:sign_out_via] || Devise.sign_out_via
end
# Return modules for the mapping.
def modules
@modules ||= to.respond_to?(:devise_modules) ? to.devise_modules : []
end
# Gives the class the mapping points to.
def to
@ref.get
end
def strategies
@strategies ||= STRATEGIES.values_at(*self.modules).compact.uniq.reverse
end
def routes
@routes ||= ROUTES.values_at(*self.modules).compact.uniq
end
def authenticatable?
@authenticatable ||= self.modules.any? { |m| m.to_s =~ /authenticatable/ }
end
def fullpath
"#{@path_prefix}/#{@path}".squeeze("/")
end
# Create magic predicates for verifying what module is activated by this map.
# Example:
#
# def confirmable?
# self.modules.include?(:confirmable)
# end
#
def self.add_module(m)
class_eval <<-METHOD, __FILE__, __LINE__ + 1
def #{m}?
self.modules.include?(:#{m})
end
METHOD
end
end
end