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Diffstat (limited to 'guides')
| -rw-r--r-- | guides/source/upgrading_ruby_on_rails.md | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/guides/source/upgrading_ruby_on_rails.md b/guides/source/upgrading_ruby_on_rails.md index 909a92b9dd..05bef61242 100644 --- a/guides/source/upgrading_ruby_on_rails.md +++ b/guides/source/upgrading_ruby_on_rails.md @@ -276,6 +276,20 @@ class Notifier < ActionMailer::Base end ``` +### Foreign Key Support + +The migration DSL has been expanded to support foreign key definitions. If +you've been using the Foreigner gem, you might want to consider removing it. +Note that the foreign key support of Rails is a subset of Foreigner. + +If you are from Foreigner to Rails foreign keys, you can follow these steps: + +1. remove "foreigner" from the Gemfile +2. run `bundle install` +3. run `bin/rake db:schema:dump` +4. make sure that `db/schema.rb` contains every foreign key definition with +the necessary options + Upgrading from Rails 4.0 to Rails 4.1 ------------------------------------- |