From 9de28419b1e6312e911eea0c315f326f498b195c Mon Sep 17 00:00:00 2001 From: Johnny Holton Date: Wed, 10 Apr 2013 23:29:19 -0400 Subject: destroys association records before saving/inserting new association records fixes bug introduced by #3329 These are the conditions necessary to reproduce the bug: - For an association, autosave => true. - An association record is being destroyed - A new association record is being created. - There is a unique index one of the association's fields. - The record being created has the same value as the record being destroyed on the indexed field. Before, the deletion of records was postponed until after all insertions/saves. Therefore the new record with the identical value in the indexed field caused a non-unique value error to be thrown at the database level. With this fix, the deletions happen first, before the insertions/saves. Therefore the record with the duplicate value is gone from the database before the new record is created, thereby avoiding the non-uniuqe value error. --- activerecord/lib/active_record/autosave_association.rb | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) (limited to 'activerecord/lib') diff --git a/activerecord/lib/active_record/autosave_association.rb b/activerecord/lib/active_record/autosave_association.rb index 44323ce9db..a98cacc78c 100644 --- a/activerecord/lib/active_record/autosave_association.rb +++ b/activerecord/lib/active_record/autosave_association.rb @@ -334,15 +334,18 @@ module ActiveRecord autosave = reflection.options[:autosave] if records = associated_records_to_validate_or_save(association, @new_record_before_save, autosave) - records_to_destroy = [] + + if autosave + records_to_destroy = records.select(&:marked_for_destruction?) + records_to_destroy.each { |record| association.destroy(record) } + records -= records_to_destroy + end + records.each do |record| - next if record.destroyed? saved = true - if autosave && record.marked_for_destruction? - records_to_destroy << record - elsif autosave != false && (@new_record_before_save || record.new_record?) + if autosave != false && (@new_record_before_save || record.new_record?) if autosave saved = association.insert_record(record, false) else @@ -354,10 +357,6 @@ module ActiveRecord raise ActiveRecord::Rollback unless saved end - - records_to_destroy.each do |record| - association.destroy(record) - end end # reconstruct the scope now that we know the owner's id -- cgit v1.2.3