Hello, Can't it be a timing problem ? When using Firebug, the system has time to retrieve result from the AJAX request but at execution time it has not ?
> -----Message d'origine----- > De : users-boun...@xwiki.org [mailto:users-boun...@xwiki.org] > De la part de Jeremie BOUSQUET > Envoyé : mardi 2 mars 2010 08:30 > À : XWiki Users > Objet : Re: [xwiki-users] Strange ajax + json issue > > Hello & thx Sergiu, > > I changed to json content-type, and responseJSON as you proposed. > > I checked that my GET request is 200 OK, and in the response > the JSON tab in > Firebug shows well formed JSON. But still my json variable is empty at > execution time ! > By the way if I breakpoint on or before the Ajax.Request() > and step over the > code, the json variable gets properly initiated and executed. > Where it's > used afterwards, it's perfectly well formed. > > I also added url parameters as 'parameters' of Ajax.Request instead of > directly in the url but no change. > > Could it be a problem in the way I pass my json variable ? > Declared outside > of Ajax.Request(...) ? It must be something really stupid but > I just don't > understand ... > > Jeremie > > 2010/3/2 Sergiu Dumitriu <ser...@xwiki.com> > > > On 03/02/2010 01:15 AM, Jeremie BOUSQUET wrote: > > > Hello, > > > > > > This is for something I'm trying to develop ... And I'm > not sure it has > > > something to do with XWiki, but who knows ? > > > > > > In a page I call a particular init() function like this : > > > > > > Event.observe(window, "load", init); > > > > > > This init() aims at loading some JSON data from another > page using Ajax. > > I > > > was inspired by the livetable.js here :-) > > > > > > var json = "" > > > var ajx=new Ajax.Request( " > > > > > > http://localhost:8081/xwiki/bin/view/Dev/JSONProvider?xpage=pl > ain&outputSyntax=plain > > ", > > > > You should use what Prototype already offers: > > - set the proper MIME type for the response from velocity, with > > $response.setContentType('application/json') > > - write well formed JSON (also include the ( and ) that you append > > before the eval in your current code > > - use transport.responseJSON to read the already parsed JSON data > > > > > {method:"get", onSuccess:function(transport) { json = > > > eval("("+transport.responseText+")"); } > > > } > > > ) > > > > > > This Javascript is in a .js file along with other > resources on the server > > > filesystem. It is loaded with $xwiki.jsfx.use(...) . > > > When I debug step by step using Firebug, everything is > fine, "json" > > variable > > > contains what I expect. > > > But when I'm not debugging and refresh the page, "json" > variable is empty > > > ... (breakpointing AFTER ajax call shows it). Though I > can see in Firebug > > > that my Ajax http request finished with a 200 OK code. > > > > Can you also check the content of the response, to see if it's well > > formed JSON? If you also set the right MIME type, then > Firebug should > > provide a tab with the JSON data of the response (depends > on the actual > > Firebug version). > > > > > Do you think it might be linked to the fact this method > is called on page > > > load ? I can't see how it's different than other ajax > calls in xwiki ... > > > > -- > > Sergiu Dumitriu > > http://purl.org/net/sergiu/ > > _______________________________________________ > > users mailing list > > users@xwiki.org > > http://lists.xwiki.org/mailman/listinfo/users > > > _______________________________________________ > users mailing list > users@xwiki.org > http://lists.xwiki.org/mailman/listinfo/users > -------------------------------------------------------------------------------- This e-mail is intended only for the addressee named above. It does not bind the sender, except in the case of an existing written convention with the addressee. This e-mail may contain material that is confidential and privileged for the sole use of the intended recipient. Any review, reliance or distribution by others or forwarding without express permission is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender and delete all copies. While reasonable precautions have been taken to ensure that this e-mail and any attachments are free from any computer virus or similar defect, no liability will be accepted in that respect. Anyone accessing this e-mail must take their own precautions as to security and virus protection. KBL European Private Bankers S.A., 43 boulevard Royal L-2955 Luxembourg, R.C.S. Luxembourg B 6395, T (352) 47 97 1 _______________________________________________ users mailing list users@xwiki.org http://lists.xwiki.org/mailman/listinfo/users
