Dynamic Web Development with Seaside

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18.8Summary

Sessions are Seaside’s central mechanism for remembering user specific interaction state. Sessions are identified using the _s parameter in the URL. As an application developer there is normally no need to access or change the session, because it is used internally by Seaside to manage the callbacks and to store the component tree. In certain cases it might be useful to change the behavior of the default implementation or to make information accessible from anywhere in the application.

Pay attention that if components depend on the presence of a specific session class, you introduce strong coupling between the component and the session. Such sessions act as global variables and should not be overused.

Copyright © 24 September 2017 Stéphane Ducasse, Lukas Renggli, C. David Shaffer, Rick Zaccone
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