diff options
Diffstat (limited to 'activerecord/lib/active_record/scoping')
| -rw-r--r-- | activerecord/lib/active_record/scoping/default.rb | 15 | ||||
| -rw-r--r-- | activerecord/lib/active_record/scoping/named.rb | 10 |
2 files changed, 18 insertions, 7 deletions
diff --git a/activerecord/lib/active_record/scoping/default.rb b/activerecord/lib/active_record/scoping/default.rb index 01fec31544..18190cb535 100644 --- a/activerecord/lib/active_record/scoping/default.rb +++ b/activerecord/lib/active_record/scoping/default.rb @@ -11,7 +11,7 @@ module ActiveRecord end module ClassMethods - # Returns a scope for the model without the +default_scope+. + # Returns a scope for the model without the previously set scopes. # # class Post < ActiveRecord::Base # def self.default_scope @@ -19,11 +19,12 @@ module ActiveRecord # end # end # - # Post.all # Fires "SELECT * FROM posts WHERE published = true" - # Post.unscoped.all # Fires "SELECT * FROM posts" + # Post.all # Fires "SELECT * FROM posts WHERE published = true" + # Post.unscoped.all # Fires "SELECT * FROM posts" + # Post.where(published: false).unscoped.all # Fires "SELECT * FROM posts" # # This method also accepts a block. All queries inside the block will - # not use the +default_scope+: + # not use the previously set scopes. # # Post.unscoped { # Post.limit(10) # Fires "SELECT * FROM posts LIMIT 10" @@ -93,14 +94,14 @@ module ActiveRecord self.default_scopes += [scope] end - def build_default_scope # :nodoc: + def build_default_scope(base_rel = relation) # :nodoc: if !Base.is_a?(method(:default_scope).owner) # The user has defined their own default scope method, so call that evaluate_default_scope { default_scope } elsif default_scopes.any? evaluate_default_scope do - default_scopes.inject(relation) do |default_scope, scope| - default_scope.merge(unscoped { scope.call }) + default_scopes.inject(base_rel) do |default_scope, scope| + default_scope.merge(base_rel.scoping { scope.call }) end end end diff --git a/activerecord/lib/active_record/scoping/named.rb b/activerecord/lib/active_record/scoping/named.rb index 2a5718f388..35420e6551 100644 --- a/activerecord/lib/active_record/scoping/named.rb +++ b/activerecord/lib/active_record/scoping/named.rb @@ -139,6 +139,16 @@ module ActiveRecord # Article.published.featured.latest_article # Article.featured.titles def scope(name, body, &block) + unless body.respond_to?(:call) + raise ArgumentError, 'The scope body needs to be callable.' + end + + if dangerous_class_method?(name) + raise ArgumentError, "You tried to define a scope named \"#{name}\" " \ + "on the model \"#{self.name}\", but Active Record already defined " \ + "a class method with the same name." + end + extension = Module.new(&block) if block singleton_class.send(:define_method, name) do |*args| |