diff options
| -rw-r--r-- | activerecord/lib/active_record/associations.rb | 8 | ||||
| -rw-r--r-- | activerecord/lib/active_record/associations/preloader.rb | 35 | ||||
| -rw-r--r-- | activerecord/test/cases/associations/eager_test.rb | 19 |
3 files changed, 28 insertions, 34 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index 860e76fa18..4abe2ad0a0 100644 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -4,6 +4,12 @@ require 'active_support/core_ext/module/remove_method' require 'active_record/errors' module ActiveRecord + class AssociationNotFoundError < ConfigurationError #:nodoc: + def initialize(record, association_name) + super("Association named '#{association_name}' was not found on #{record.class.name}; perhaps you misspelled it?") + end + end + class InverseOfAssociationNotFoundError < ActiveRecordError #:nodoc: def initialize(reflection, associated_class = nil) super("Could not find the inverse association for #{reflection.name} (#{reflection.options[:inverse_of].inspect} in #{associated_class.nil? ? reflection.class_name : associated_class.name})") @@ -145,7 +151,7 @@ module ActiveRecord association = association_instance_get(name) if association.nil? - reflection = self.class.reflect_on_association(name) + raise AssociationNotFoundError.new(self, name) unless reflection = self.class.reflect_on_association(name) association = reflection.association_class.new(self, reflection) association_instance_set(name, association) end diff --git a/activerecord/lib/active_record/associations/preloader.rb b/activerecord/lib/active_record/associations/preloader.rb index 83637a0409..31ddf4e0fc 100644 --- a/activerecord/lib/active_record/associations/preloader.rb +++ b/activerecord/lib/active_record/associations/preloader.rb @@ -140,36 +140,13 @@ module ActiveRecord end def grouped_records(association, records) - reflection_records = records_by_reflection(association, records) - - reflection_records.each_with_object({}) do |(reflection, r_records),h| - h[reflection] = r_records.group_by { |record| - association_klass(reflection, record) - } - end - end - - def records_by_reflection(association, records) - records.group_by do |record| - reflection = record.class.reflect_on_association(association) - - reflection || raise_config_error(record, association) - end - end - - def raise_config_error(record, association) - raise ActiveRecord::ConfigurationError, - "Association named '#{association}' was not found on #{record.class.name}; " \ - "perhaps you misspelled it?" - end - - def association_klass(reflection, record) - if reflection.macro == :belongs_to && reflection.options[:polymorphic] - klass = record.read_attribute(reflection.foreign_type.to_s) - klass && klass.constantize - else - reflection.klass + h = {} + records.each do |record| + assoc = record.association(association) + klasses = h[assoc.reflection] ||= {} + (klasses[assoc.klass] ||= []) << record end + h end class AlreadyLoaded diff --git a/activerecord/test/cases/associations/eager_test.rb b/activerecord/test/cases/associations/eager_test.rb index e59161fc5b..8c9797861c 100644 --- a/activerecord/test/cases/associations/eager_test.rb +++ b/activerecord/test/cases/associations/eager_test.rb @@ -235,6 +235,17 @@ class EagerAssociationTest < ActiveRecord::TestCase end end + def test_finding_with_includes_on_empty_polymorphic_type_column + sponsor = sponsors(:moustache_club_sponsor_for_groucho) + sponsor.update!(sponsorable_type: '', sponsorable_id: nil) # sponsorable_type column might be declared NOT NULL + sponsor = assert_queries(1) do + assert_nothing_raised { Sponsor.all.merge!(:includes => :sponsorable).find(sponsor.id) } + end + assert_no_queries do + assert_equal nil, sponsor.sponsorable + end + end + def test_loading_from_an_association posts = authors(:david).posts.merge(:includes => :comments, :order => "posts.id").to_a assert_equal 2, posts.first.comments.size @@ -709,16 +720,16 @@ class EagerAssociationTest < ActiveRecord::TestCase end def test_eager_with_invalid_association_reference - assert_raise(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys") { + assert_raise(ActiveRecord::AssociationNotFoundError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys") { Post.all.merge!(:includes=> :monkeys ).find(6) } - assert_raise(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys") { + assert_raise(ActiveRecord::AssociationNotFoundError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys") { Post.all.merge!(:includes=>[ :monkeys ]).find(6) } - assert_raise(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys") { + assert_raise(ActiveRecord::AssociationNotFoundError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys") { Post.all.merge!(:includes=>[ 'monkeys' ]).find(6) } - assert_raise(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys, :elephants") { + assert_raise(ActiveRecord::AssociationNotFoundError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys, :elephants") { Post.all.merge!(:includes=>[ :monkeys, :elephants ]).find(6) } end |