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authorRafael Mendonça França <rafaelmfranca@gmail.com>2014-06-26 10:27:13 -0300
committerRafael Mendonça França <rafaelmfranca@gmail.com>2014-06-26 10:27:13 -0300
commit031588ebe6b449bcba6e3becfaff6978ba10464a (patch)
tree179a789fd65ddc4c157f6bb088002a465755e6a8 /guides
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parentd730e374ca99a60b08c75aab7b0ed8a846a34924 (diff)
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Merge pull request #15754 from sgrif/sg-deprecate-hmt-counter-cache
Deprecate automatic counter caches on has_many :through
Diffstat (limited to 'guides')
-rw-r--r--guides/source/4_2_release_notes.md6
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diff --git a/guides/source/4_2_release_notes.md b/guides/source/4_2_release_notes.md
index 6a847c3087..dd484ccee2 100644
--- a/guides/source/4_2_release_notes.md
+++ b/guides/source/4_2_release_notes.md
@@ -201,6 +201,12 @@ for detailed changes.
([Commit](https://github.com/rails/rails/commit/91949e48cf41af9f3e4ffba3e5eecf9b0a08bfc3))
+* Deprecated broken support for automatic detection of counter caches on
+ `has_many :through` associations. You should instead manually specify the
+ counter cache on the `has_many` and `belongs_to` associations for the through
+ records.
+ ([Pull Request](https://github.com/rails/rails/pull/15754))
+
### Notable changes
* Added support for `#pretty_print` in `ActiveRecord::Base` objects.