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[config guide] Show example of defining initialization hooks

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radar committed Oct 6, 2011
1 parent 00751f0 commit 02eac2db9407ddebaca26ea6cb26d6d64a7fb24b
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  1. +19 −0 railties/guides/source/configuring.textile
@@ -467,6 +467,25 @@ Rails has 5 initialization events which can be hooked into (listed in the order
* +after_initialize+: Run directly after the initialization of the application, but before the application initializers are run.
+To define an event for these hooks, use the block syntax within a +Rails::Aplication+, +Rails::Railtie+ or +Rails::Engine+ subclass:
+
+<ruby>
+module YourApp
+ class Application < Rails::Application
+ config.before_initialize do
+ # initialization code goes here
+ end
+ end
+end
+</ruby>
+
+Alternatively, you can also do it through the +config+ method on the +Rails.application+ object:
+
+<ruby>
+Rails.application.config.before_initialize do
+ # initialization code goes here
+end
+</ruby>
WARNING: Some parts of your application, notably observers and routing, are not yet set up at the point where the +after_initialize+ block is called.

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