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| author | Aldo "xoen" Giambelluca <xoen@xoen.org> | 2012-09-02 21:25:08 +0200 |
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| committer | Aldo "xoen" Giambelluca <xoen@xoen.org> | 2012-09-02 21:40:01 +0200 |
| commit | 10520675d2af862ee9881ea4a20efe081228a3dc (patch) | |
| tree | d7abe3052783ff38e60f1cb7940ecff544e1efe4 /guides | |
| parent | 7715b7b8951c5889c1fbee5c0b7a461dd2e737f4 (diff) | |
| download | rails-10520675d2af862ee9881ea4a20efe081228a3dc.tar.gz rails-10520675d2af862ee9881ea4a20efe081228a3dc.tar.bz2 rails-10520675d2af862ee9881ea4a20efe081228a3dc.zip | |
Fixed validation issue and titles in Migrations guide [ci skip]
Changed the title of the 3.5 chapter from "Using the change Method" to
"When to Use the change Method" since the chapter tells the migration
definitions supported by the change method. This fix the duplicate ID in the
document.
I've also changed some of the titles to respect the Guides guidelines.
Diffstat (limited to 'guides')
| -rw-r--r-- | guides/source/migrations.textile | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/guides/source/migrations.textile b/guides/source/migrations.textile index a7de21b754..0173f8ecc6 100644 --- a/guides/source/migrations.textile +++ b/guides/source/migrations.textile @@ -81,7 +81,7 @@ 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 +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 @@ -351,7 +351,7 @@ end This migration will create a user_id column and appropriate index. -h4. Supported type modifiers +h4. Supported Type Modifiers You can also specify some options just after the field type between curly braces. You can use the following modifiers: @@ -550,7 +550,7 @@ and "<tt>ActiveRecord::ConnectionAdapters::Table</tt>":http://api.rubyonrails.org/classes/ActiveRecord/ConnectionAdapters/Table.html (which provides the methods available on the object yielded by +change_table+). -h4. Using the +change+ Method +h4. When to Use the +change+ Method The +change+ method removes the need to write both +up+ and +down+ methods in those cases that Rails knows how to revert the changes automatically. Currently, @@ -672,7 +672,7 @@ Neither of these Rake tasks do anything you could not do with +db:migrate+. They are simply more convenient, since you do not need to explicitly specify the version to migrate to. -h4. Resetting the database +h4. Resetting the Database The +rake db:reset+ task will drop the database, recreate it and load the current schema into it. @@ -680,7 +680,7 @@ current schema into it. NOTE: This is not the same as running all the migrations - see the section on "schema.rb":#schema-dumping-and-you. -h4. Running specific migrations +h4. Running Specific Migrations If you need to run a specific migration up or down, the +db:migrate:up+ and +db:migrate:down+ tasks will do that. Just specify the appropriate version and @@ -695,7 +695,7 @@ will run the +up+ method from the 20080906120000 migration. This task will first check whether the migration is already performed and will do nothing if Active Record believes that it has already been run. -h4. Changing the output of running migrations +h4. Changing the Output of Running Migrations By default migrations tell you exactly what they're doing and how long it took. A migration creating a table and adding an index might produce output like this |