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| -rw-r--r-- | railties/guides/source/active_model_basics.textile | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/railties/guides/source/active_model_basics.textile b/railties/guides/source/active_model_basics.textile index 87a9658a94..e4c84365d3 100644 --- a/railties/guides/source/active_model_basics.textile +++ b/railties/guides/source/active_model_basics.textile @@ -45,7 +45,31 @@ person.age_highest? # false h4. Callbacks +Callbacks gives Active Record style callbacks. This provides the ability to define the callbacks and those will run at appropriate time. After defining a callbacks you can wrap with before, after and around custom methods. +<ruby> +class Person + extend ActiveModel::Callbacks + + define_model_callbacks :update + + before_update :reset_me + + def update + _run_update_callbacks do + puts 'saving...' + end + end + + def reset_me + puts 'before saving...' + end +end + +person = Person.new +person.update # before saving... + # saving... +</ruby> h3. Changelog |