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| -rw-r--r-- | guides/source/upgrading_ruby_on_rails.md | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/guides/source/upgrading_ruby_on_rails.md b/guides/source/upgrading_ruby_on_rails.md index dc0bc5bea1..77a09cd5f0 100644 --- a/guides/source/upgrading_ruby_on_rails.md +++ b/guides/source/upgrading_ruby_on_rails.md @@ -47,8 +47,16 @@ Rails 4.0 no longer supports loading plugins from `vendor/plugins`. You must rep * Rails 4.0 has removed `attr_accessible` and `attr_protected` feature in favor of Strong Parameters. You can use the [Protected Attributes gem](https://github.com/rails/protected_attributes) to a smoothly upgrade path. -* Rails 4.0 has deprecated `ActiveRecord::Fixtures` in favor of `ActiveRecord::FixtureSet`. +* Rails 4.0 requires that scopes use a callable object such as a Proc or lambda: + +```ruby + scope :active, where(active: true) + # becomes + scope :active, -> { where active: true } +``` + +* Rails 4.0 has deprecated `ActiveRecord::Fixtures` in favor of `ActiveRecord::FixtureSet`. * Rails 4.0 has deprecated `ActiveRecord::TestCase` in favor of `ActiveSupport::TestCase`. ### Active Resource |