[Seaside] Are Announcements robust in seaside app?

[gettimothy]

Joachim,

thank you..




---- On Tue, 27 Mar 2018 03:11:30 -0400  <jtuchel at objektfabrik.de> wrote ---- 

  Timothy,
 
 
 Am 27.03.18 um 05:53 schrieb gettimothy:
 
   I've used Announcements and prefer them for inter component event handling. 
 
  
 we've been using Announcements in our Seaside App for years now and apart from beginners' problems (like not unregistering properly and therefor having all kinds of strange phenomena) they serve their purpose very well. The housekeeping of subscriptions is key, you can shoot yourself in the foot easily.
 
  It's been five years since I used them in Seaside. Have they held up well?
 
 
 Are they local to a session?
  
 No. They are local to the Announcer that you use. We use our WASession subclass. But Seaside does nothing to make Announcements local to anything. Whoever subscribes to the Announcer gets Announcements. So to some extent you can make them local to a Session by using the Session as the Announcer, but still you could forcibly register subscribers that are outside of the Session. It is your responsibility.
 
  
 
 Does jQuery Ajax introduce issues?
  
 Not that I know of. But that doesn't necessarily mean anything ;-)
 
 
 Joachim
 
  
 
 Thx
 
 
  
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