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Diffstat (limited to 'guides/source/upgrading_ruby_on_rails.md')
| -rw-r--r-- | guides/source/upgrading_ruby_on_rails.md | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/guides/source/upgrading_ruby_on_rails.md b/guides/source/upgrading_ruby_on_rails.md index 79e0c6bf09..3daa10ea07 100644 --- a/guides/source/upgrading_ruby_on_rails.md +++ b/guides/source/upgrading_ruby_on_rails.md @@ -170,6 +170,7 @@ this gem such as `whitelist_attributes` or `mass_assignment_sanitizer` options. ``` * Rails 4.0 has deprecated `ActiveRecord::Fixtures` in favor of `ActiveRecord::FixtureSet`. + * Rails 4.0 has deprecated `ActiveRecord::TestCase` in favor of `ActiveSupport::TestCase`. * Rails 4.0 has deprecated the old-style hash based finder API. This means that @@ -184,6 +185,12 @@ this gem such as `whitelist_attributes` or `mass_assignment_sanitizer` options. * `find_or_initialize_by_...` becomes `find_or_initialize_by(...)`. * `find_or_create_by_...` becomes `find_or_create_by(...)`. +* Note that `where(...)` returns a relation, not an array like the old finders. If you require an `Array`, use `where(...).to_a`. + +* These equivalent methods may not execute the same SQL as the previous implementation. + +* To re-enable the old finders, you can use the [activerecord-deprecated_finders gem](https://github.com/rails/activerecord-deprecated_finders). + ### Active Resource Rails 4.0 extracted Active Resource to its own gem. If you still need the feature you can add the [Active Resource gem](https://github.com/rails/activeresource) in your Gemfile. |