Feature Requests item #603132, was opened at 2002-09-01 09:09 You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=354754&aid=603132&group_id=4754
Category: framework Group: None Status: Open Resolution: None Priority: 5 Submitted By: Mind Bridge (mindbridge) Assigned to: Nobody/Anonymous (nobody) Summary: Add a service similar to ExternalService Initial Comment: Rationale: At the moment Tapestry provides 3 standard types of links and services for invoking Tapestry pages: Action (invokes same page w/ rewind), Direct (invokes same page w/ parameters but w/o rewind), Page (invokes a different page w/o parameters). These are generally sufficient when you develop apps running within a single window and force the developer to think of pages in terms of objects and pass parameters via method calls, rather than arguments in the URL. If the app needs to open new windows via JavaScript, or needs to create "bookmarkable" URLs, it is essential to use a service that opens a new page, but allows parameters to be passed in the URL. An example of such a service is given in the Vlib example application -- the ExternalService. I am sure that most of the regular users of Tapestry have implemented their own versions of such a service (we have, for example). Proposal: Add a standard service and a component to create links to that service for invoking a new page and pass parameters to it via the URL. Needless to say, this is a relatively quick thing to do using AbstractService, but it would be great to have a standard implementation in the Tapestry framework. It would make sense to clearly explain in the documentation that using it in the general case is not the Tapestry way in order to prevent new users used to JSP and similar frameworks from using this service when not necessary. ---------------------------------------------------------------------- >Comment By: Howard Lewis Ship (hship) Date: 2002-09-02 09:49 Message: Logged In: YES user_id=26816 I'm not sure skipping the call to validate() is a good thing, BTW. For example, imagine that a page is "protected" and you need to login. A validate() method could setup a Login-type page, with a callback to return to the external page when the user succesfully logs in. PageRedirectException exists to allow for this ... validate() can throw PageRedirectException to redirect to the Login page and the Login page uses a persistently-stored callback to return the external page once login is complete. I do this kind of thing in the Vlib example. ---------------------------------------------------------------------- Comment By: Howard Lewis Ship (hship) Date: 2002-09-02 09:44 Message: Logged In: YES user_id=26816 Also, I would change things so that you use the context to define the page (in which case, at least the page name is not affected by DataSqueezer). ---------------------------------------------------------------------- Comment By: Howard Lewis Ship (hship) Date: 2002-09-02 09:41 Message: Logged In: YES user_id=26816 You're on a tear today! This looked good; I'm touching up a couple of things right now (i.e., to use TapestryStrings for localizable messages). I'm also updating Framework.library to make this available to applications by default. Also, is setup() a sufficient name? I'd rather something that had the word "external" in it, perhaps setupForExternal() or setupExternalRequest() or just setupExternal(). Also, shouldn't there be an ExternalLink component? Lastly, a common operation will be to encode a Map of values (especially if you are coming from the Struts world). A static utility method for converting a Map into an array of objects (i.e., even elements are keys, odd elements are values) and converting such an array back into a Map would be darn useful. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=354754&aid=603132&group_id=4754 ------------------------------------------------------- This sf.net email is sponsored by: OSDN - Tired of that same old cell phone? Get a new here for FREE! https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390 _______________________________________________ Tapestry-developer mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/tapestry-developer
