diff options
Diffstat (limited to 'activerecord/lib/active_record/associations/builder/association.rb')
-rw-r--r-- | activerecord/lib/active_record/associations/builder/association.rb | 66 |
1 files changed, 39 insertions, 27 deletions
diff --git a/activerecord/lib/active_record/associations/builder/association.rb b/activerecord/lib/active_record/associations/builder/association.rb index 37ba1c73b1..f085fd1cfd 100644 --- a/activerecord/lib/active_record/associations/builder/association.rb +++ b/activerecord/lib/active_record/associations/builder/association.rb @@ -1,3 +1,5 @@ +require 'active_support/core_ext/module/attribute_accessors' + # This is the parent Association class which defines the variables # used by all associations. # @@ -13,65 +15,73 @@ module ActiveRecord::Associations::Builder class Association #:nodoc: class << self attr_accessor :extensions + # TODO: This class accessor is needed to make activerecord-deprecated_finders work. + # We can move it to a constant in 5.0. + attr_accessor :valid_options end self.extensions = [] - VALID_OPTIONS = [:class_name, :class, :foreign_key, :validate] + self.valid_options = [:class_name, :class, :foreign_key, :validate] + + attr_reader :name, :scope, :options def self.build(model, name, scope, options, &block) - extension = define_extensions model, name, &block - reflection = create_reflection model, name, scope, options, extension + if model.dangerous_attribute_method?(name) + raise ArgumentError, "You tried to define an association named #{name} on the model #{model.name}, but " \ + "this will conflict with a method #{name} already defined by Active Record. " \ + "Please choose a different association name." + end + + builder = create_builder model, name, scope, options, &block + reflection = builder.build(model) define_accessors model, reflection define_callbacks model, reflection + builder.define_extensions model reflection end - def self.create_reflection(model, name, scope, options, extension = nil) + def self.create_builder(model, name, scope, options, &block) raise ArgumentError, "association names must be a Symbol" unless name.kind_of?(Symbol) + new(model, name, scope, options, &block) + end + + def initialize(model, name, scope, options) + # TODO: Move this to create_builder as soon we drop support to activerecord-deprecated_finders. if scope.is_a?(Hash) options = scope scope = nil end - validate_options(options) + # TODO: Remove this model argument as soon we drop support to activerecord-deprecated_finders. + @name = name + @scope = scope + @options = options - scope = build_scope(scope, extension) - - ActiveRecord::Reflection.create(macro, name, scope, options, model) - end - - def self.build_scope(scope, extension) - new_scope = scope + validate_options if scope && scope.arity == 0 - new_scope = proc { instance_exec(&scope) } - end - - if extension - new_scope = wrap_scope new_scope, extension + @scope = proc { instance_exec(&scope) } end - - new_scope end - def self.wrap_scope(scope, extension) - scope + def build(model) + ActiveRecord::Reflection.create(macro, name, scope, options, model) end - def self.macro + def macro raise NotImplementedError end - def self.valid_options(options) - VALID_OPTIONS + Association.extensions.flat_map(&:valid_options) + def valid_options + Association.valid_options + Association.extensions.flat_map(&:valid_options) end - def self.validate_options(options) - options.assert_valid_keys(valid_options(options)) + def validate_options + options.assert_valid_keys(valid_options) end - def self.define_extensions(model, name) + def define_extensions(model) end def self.define_callbacks(model, reflection) @@ -114,6 +124,8 @@ module ActiveRecord::Associations::Builder raise NotImplementedError end + private + def self.add_before_destroy_callbacks(model, reflection) unless valid_dependent_options.include? reflection.options[:dependent] raise ArgumentError, "The :dependent option must be one of #{valid_dependent_options}, but is :#{reflection.options[:dependent]}" |