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Diffstat (limited to 'activerecord/CHANGELOG.md')
| -rw-r--r-- | activerecord/CHANGELOG.md | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md index 56a3232ee9..f1921dded8 100644 --- a/activerecord/CHANGELOG.md +++ b/activerecord/CHANGELOG.md @@ -1,3 +1,33 @@ +* Introduce ApplicationRecord, an Active Record layer super type. + + An `ApplicationRecord` let's engines have models, isolated from the main + application. Plugin authors can use it to distribute extensions as modules + to be included into `ApplicationRecord`, instead of monkey patches. It can + also serve as a place for applications to customize the default + `ActiveRecord::Base` model behaviour. + + Newly generated applications have `app/models/application_record.rb` + present by default. Generators are smart enough to recognize that + newly generated models have to inherit from `ApplicationRecord` only if + it's present. + + *Genadi Samokovarov* + +* Version the API presented to migration classes, so we can change parameter + defaults without breaking existing migrations, or forcing them to be + rewritten through a deprecation cycle. + + *Matthew Draper*, *Ravil Bayramgalin* + +* Use bind params for `limit` and `offset`. This will generate significantly + fewer prepared statements for common tasks like pagination. To support this + change, passing a string containing a comma to `limit` has been deprecated, + and passing an Arel node to `limit` is no longer supported. + + Fixes #22250 + + *Sean Griffin* + * Introduce after_{create,update,delete}_commit callbacks. Before: |