diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/development/what_requires_downtime.md | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/doc/development/what_requires_downtime.md b/doc/development/what_requires_downtime.md index 944bf5900c5..f4cee410066 100644 --- a/doc/development/what_requires_downtime.md +++ b/doc/development/what_requires_downtime.md @@ -45,15 +45,12 @@ rule. The first step is to ignore the column in the application code. This is necessary because Rails caches the columns and re-uses this cache in various -places. This can be done by including the `IgnorableColumn` module into the -model, followed by defining the columns to ignore. For example, to ignore +places. This can be done by defining the columns to ignore. For example, to ignore `updated_at` in the User model you'd use the following: ```ruby -class User < ActiveRecord::Base - include IgnorableColumn - - ignore_column :updated_at +class User < ApplicationRecord + self.ignored_columns += %i[updated_at] end ``` @@ -64,8 +61,7 @@ column. Both these changes should be submitted in the same merge request. Once the changes from step 1 have been released & deployed you can set up a separate merge request that removes the ignore rule. This merge request can -simply remove the `ignore_column` line, and the `include IgnorableColumn` line -if no other `ignore_column` calls remain. +simply remove the `self.ignored_columns` line. ## Renaming Columns |