diff options
4 files changed, 16 insertions, 1 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md index 3f1908ec18..cbbfad615d 100644 --- a/activerecord/CHANGELOG.md +++ b/activerecord/CHANGELOG.md @@ -1,3 +1,8 @@ +* Use `count(:all)` in `HasManyAssociation#count_records` to prevent invalid + SQL queries for association counting. + + *Klas Eskilson* + * Fix to invoke callbacks when using `update_attribute`. *Mike Busch* diff --git a/activerecord/lib/active_record/associations/has_many_association.rb b/activerecord/lib/active_record/associations/has_many_association.rb index 07c7f28d2d..cf85a87fa7 100644 --- a/activerecord/lib/active_record/associations/has_many_association.rb +++ b/activerecord/lib/active_record/associations/has_many_association.rb @@ -63,7 +63,7 @@ module ActiveRecord count = if reflection.has_cached_counter? owner._read_attribute(reflection.counter_cache_column).to_i else - scope.count + scope.count(:all) end # If there's nothing in the database and @target has no new records diff --git a/activerecord/test/cases/associations/has_many_associations_test.rb b/activerecord/test/cases/associations/has_many_associations_test.rb index 0eafd3a4e2..18548f8516 100644 --- a/activerecord/test/cases/associations/has_many_associations_test.rb +++ b/activerecord/test/cases/associations/has_many_associations_test.rb @@ -2529,6 +2529,14 @@ class HasManyAssociationsTest < ActiveRecord::TestCase assert_equal [first_bulb, second_bulb], car.bulbs end + test "association size calculation works with default scoped selects when not previously fetched" do + firm = Firm.create!(name: "Firm") + 5.times { firm.developers_with_select << Developer.create!(name: "Developer") } + + same_firm = Firm.find(firm.id) + assert_equal 5, same_firm.developers_with_select.size + end + test "prevent double insertion of new object when the parent association loaded in the after save callback" do reset_callbacks(:save, Bulb) do Bulb.after_save { |record| record.car.bulbs.load } diff --git a/activerecord/test/models/company.rb b/activerecord/test/models/company.rb index bbc5fc2b2d..fc6488f729 100644 --- a/activerecord/test/models/company.rb +++ b/activerecord/test/models/company.rb @@ -87,6 +87,8 @@ class Firm < Company has_many :association_with_references, -> { references(:foo) }, class_name: "Client" + has_many :developers_with_select, -> { select("id, name, first_name") }, class_name: "Developer" + has_one :lead_developer, class_name: "Developer" has_many :projects |