Callbacks
Call a specified method on a specific life cycle event.
Here is an example:
1
require "granite/adapter/pg"
2
3
class Post < Granite::Base
4
connection pg
5
6
before_save :upcase_title
7
8
column id : Int64, primary: true
9
column title : String
10
column content : String
11
timestamps
12
13
def upcase_title
14
if title = @title
15
@title = title.upcase
16
end
17
end
18
end
Copied!
You can register callbacks for the following events:

Create

  • before_save
  • before_create
  • save
  • after_create
  • after_save

Update

  • before_save
  • before_update
  • save
  • after_update
  • after_save

Destroy

  • before_destroy
  • destroy
  • after_destroy
Last modified 2yr ago
Copy link