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authorSandip Ransing <sandip@joshsoftware.com>2012-04-06 00:44:56 +0530
committerSandip Ransing <sandip@joshsoftware.com>2012-04-06 00:44:56 +0530
commite59b66979236c93b42467f5656da28179db1397c (patch)
tree38ca3c22e24a7de03bc5e1355f809b25c80d373e /guides/source/migrations.textile
parent163258ba2a7ff325cb79d70a1ad15aeb3d270e28 (diff)
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Improvement to migration guide
Diffstat (limited to 'guides/source/migrations.textile')
-rw-r--r--guides/source/migrations.textile12
1 files changed, 6 insertions, 6 deletions
diff --git a/guides/source/migrations.textile b/guides/source/migrations.textile
index 28426de6d7..1d8c1e03f3 100644
--- a/guides/source/migrations.textile
+++ b/guides/source/migrations.textile
@@ -51,7 +51,7 @@ end
This migration adds a table called +products+ with a string column called +name+
and a text column called +description+. A primary key column called +id+ will
-also be added, however since this is the default we do not need to ask for this.
+also be added, however since this is the default we do not need to explicitly write for this.
The timestamp columns +created_at+ and +updated_at+ which Active Record
populates automatically will also be added. Reversing this migration is as
simple as dropping the table.
@@ -65,7 +65,7 @@ class AddReceiveNewsletterToUsers < ActiveRecord::Migration
change_table :users do |t|
t.boolean :receive_newsletter, :default => false
end
- User.update_all ["receive_newsletter = ?", true]
+ User.update_all :receive_newsletter => true
end
def down
@@ -635,10 +635,10 @@ example,
$ rake db:migrate:up VERSION=20080906120000
</shell>
-will run the +up+ method from the 20080906120000 migration. These tasks still
-check whether the migration has already run, so for example +db:migrate:up
-VERSION=20080906120000+ will do nothing if Active Record believes that
-20080906120000 has already been run.
+will run the +up+ method from the 20080906120000 migration. This task will first
+check whether the migration is already performed, so for example
+ +db:migrate:up VERSION=20080906120000+ will do nothing if Active Record believes
+ that 20080906120000 has already been run.
h4. Changing the output of running migrations