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Diffstat (limited to 'guides/source/migrations.textile')
| -rw-r--r-- | guides/source/migrations.textile | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/guides/source/migrations.textile b/guides/source/migrations.textile index aa75e9ab4a..f855072fd8 100644 --- a/guides/source/migrations.textile +++ b/guides/source/migrations.textile @@ -82,6 +82,8 @@ it to default to +false+ for new users, but existing users are considered to have already opted in, so we use the User model to set the flag to +true+ for existing users. +h4. Using the change method + Rails 3.1 makes migrations smarter by providing a new <tt>change</tt> method. This method is preferred for writing constructive migrations (adding columns or tables). The migration knows how to migrate your database and reverse it when @@ -779,7 +781,7 @@ Both migrations work for Alice. Bob comes back from vacation and: -# Updates the source - which contains both migrations and the latests version of +# Updates the source - which contains both migrations and the latest version of the Product model. # Runs outstanding migrations with +rake db:migrate+, which includes the one that updates the +Product+ model. |