diff options
| author | Sean Griffin <sean@seantheprogrammer.com> | 2015-10-02 09:35:30 -0400 |
|---|---|---|
| committer | Sean Griffin <sean@seantheprogrammer.com> | 2015-10-02 09:37:31 -0400 |
| commit | ede244e2367c7988fa02f5e3b956d88211bb5ade (patch) | |
| tree | 0fc191c9a03d7684146a244bc0aecf20c44c3907 /activerecord/lib/active_record/persistence.rb | |
| parent | c80b114c45215e713711c018a1ed2e6b264c22f8 (diff) | |
| download | rails-ede244e2367c7988fa02f5e3b956d88211bb5ade.tar.gz rails-ede244e2367c7988fa02f5e3b956d88211bb5ade.tar.bz2 rails-ede244e2367c7988fa02f5e3b956d88211bb5ade.zip | |
Build the `AttributeMutationTracker` lazily
For reads, we never need to construct this object. The double `defined?`
check is to avoid errors in tests
Diffstat (limited to 'activerecord/lib/active_record/persistence.rb')
| -rw-r--r-- | activerecord/lib/active_record/persistence.rb | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb index 7b53f6e5a0..3f02f73a5a 100644 --- a/activerecord/lib/active_record/persistence.rb +++ b/activerecord/lib/active_record/persistence.rb @@ -211,7 +211,7 @@ module ActiveRecord def becomes(klass) became = klass.new became.instance_variable_set("@attributes", @attributes) - became.instance_variable_set("@mutation_tracker", @mutation_tracker) + became.instance_variable_set("@mutation_tracker", @mutation_tracker) if defined?(@mutation_tracker) became.instance_variable_set("@changed_attributes", attributes_changed_by_setter) became.instance_variable_set("@new_record", new_record?) became.instance_variable_set("@destroyed", destroyed?) |