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| author | Xavier Noria <fxn@hashref.com> | 2015-06-28 11:52:59 +0200 |
|---|---|---|
| committer | Xavier Noria <fxn@hashref.com> | 2015-06-28 12:12:28 +0200 |
| commit | fd495a8d180b4fdeff55292f961e0b35071d42e3 (patch) | |
| tree | 7607040e01b43e64178c24d068b587df726fff08 /guides | |
| parent | 6a6c4c459106e2d9b76dd1233133a2bf30866ab0 (diff) | |
| download | rails-fd495a8d180b4fdeff55292f961e0b35071d42e3.tar.gz rails-fd495a8d180b4fdeff55292f961e0b35071d42e3.tar.bz2 rails-fd495a8d180b4fdeff55292f961e0b35071d42e3.zip | |
updates a migration example in the Getting Started guide [ci skip]
Closes #20705.
Diffstat (limited to 'guides')
| -rw-r--r-- | guides/source/getting_started.md | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/guides/source/getting_started.md b/guides/source/getting_started.md index a091f84fb0..dfdc11de7a 100644 --- a/guides/source/getting_started.md +++ b/guides/source/getting_started.md @@ -1546,8 +1546,6 @@ class CreateComments < ActiveRecord::Migration create_table :comments do |t| t.string :commenter t.text :body - - # this line adds an integer column called `article_id`. t.references :article, index: true, foreign_key: true t.timestamps null: false @@ -1556,9 +1554,9 @@ class CreateComments < ActiveRecord::Migration end ``` -The `t.references` line sets up a foreign key column for the association between -the two models. An index for this association is also created on this column. -Go ahead and run the migration: +The `t.references` line creates an integer column called `article_id`, an index +for it, and a foreign key constraint that points to the `articles` table. Go +ahead and run the migration: ```bash $ bin/rake db:migrate |