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Better callbacks in Rails 5

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Formale Metadaten

Titel Better callbacks in Rails 5
Serientitel RailsConf 2015
Teil 24
Anzahl der Teile 94
Autor Baccigalupo, Claudio
Lizenz CC-Namensnennung - Weitergabe unter gleichen Bedingungen 3.0 Unported:
Sie dürfen das Werk bzw. den Inhalt zu jedem legalen und nicht-kommerziellen Zweck nutzen, verändern und in unveränderter oder veränderter Form vervielfältigen, verbreiten und öffentlich zugänglich machen, sofern Sie den Namen des Autors/Rechteinhabers in der von ihm festgelegten Weise nennen und das Werk bzw. diesen Inhalt auch in veränderter Form nur unter den Bedingungen dieser Lizenz weitergeben.
DOI 10.5446/30642
Herausgeber Confreaks, LLC
Erscheinungsjahr 2015
Sprache Englisch

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Fachgebiet Informatik
Abstract In Rails 5, the old way of returning false to implicitly halt a callback chain will not work anymore. This change will impact any codebase using ActiveSupport, ActiveRecord, ActiveModel or ActiveJob. Methods like before action, before save, before validation will require developers to explicitly throw an exception in order the halt the chain. This talk will explain the motivations behind the new default, will delve into the internals of Rails to show the actual code, and will help developers and gem maintainers safely upgrade their apps to Rails 5.

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