[Django] #10840: URL fetching for AJAX libraries

[Django-3]

#10840: URL fetching for AJAX libraries
------------------------------------+---------------------------------------
 Reporter:  mathijs                 |       Owner:  nobody    
   Status:  new                     |   Milestone:  1.2      
Component:  Generic views           |     Version:  SVN      
 Keywords:  ajax url generic fetch  |       Stage:  Unreviewed
Has_patch:  0                       |  
------------------------------------+---------------------------------------
 When developing AJAX add-ons for my Django apps, they often need to post
 data on a specific url. Most of the time I'm forced to hard code this url
 into my scripts. However, if it would be possible to have a single url
 (read: view) that fetches the url for a given view name + variables, or
 returns an array of the sort: ["view_name" => "/user_%(id)/...", ...] (the
 %(id) part should than be replaced with the correct parameters), AJAX
 scripts can become more url-abstract.

 My request is a generic view that works as explained above, you could then
 enable it by adding one more URL to your url.py file pointing to this
 generic view. Comparable to what we have for i18n for AJAX. Some generic
 javascript code would also be needed to handle the parsing of the array
 (using caching etc).

 If you are interested in including such a feauture in trunk, I'd even be
 willing to write up some code.

 regards,
 Mathijs

--
Ticket URL: <http://code.djangoproject.com/ticket/10840>
Django <http://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
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[Django-3]

#10840: URL fetching for AJAX libraries
---------------------------------------------+------------------------------
          Reporter:  mathijs                 |         Owner:  nobody                
            Status:  new                     |     Milestone:  1.2                  
         Component:  Generic views           |       Version:  SVN                  
        Resolution:                          |      Keywords:  ajax url generic fetch
             Stage:  Design decision needed  |     Has_patch:  0                    
        Needs_docs:  0                       |   Needs_tests:  0                    
Needs_better_patch:  0                       |  
---------------------------------------------+------------------------------
Changes (by anonymous):

  * needs_better_patch:  => 0
  * stage:  Unreviewed => Design decision needed
  * needs_tests:  => 0
  * needs_docs:  => 0

--
Ticket URL: <http://code.djangoproject.com/ticket/10840#comment:1>
Django <http://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
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[Django-3]

#10840: URL fetching for AJAX libraries
---------------------------------------------+------------------------------
          Reporter:  mathijs                 |         Owner:  nobody                
            Status:  new                     |     Milestone:  1.2                  
         Component:  Generic views           |       Version:  SVN                  
        Resolution:                          |      Keywords:  ajax url generic fetch
             Stage:  Design decision needed  |     Has_patch:  0                    
        Needs_docs:  0                       |   Needs_tests:  0                    
Needs_better_patch:  0                       |  
---------------------------------------------+------------------------------
Changes (by qingfeng):

 * cc: qingfeng@... (added)

Comment:

 Look here :)
 Django Ajax Tag, ROR link_to_remote clone.

 {{{
 {% ajax %}
 link_to_remote
 url => /demo/ajax1/
 update => #ajax1
 success => $("#ajax1").css("color","red")
 {% endajax %}
 }}}

 http://github.com/qingfeng/django-ajax-tag/tree/master
 http://github.com/qingfeng/django-ajax-
 tag/blob/bc8bc075fecc1799bea99ec18bc03c0fef282010/demo/templates/demo.html

--
Ticket URL: <http://code.djangoproject.com/ticket/10840#comment:2>
Django <http://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
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[Django-3]

#10840: URL fetching for AJAX libraries
---------------------------------------------+------------------------------
          Reporter:  mathijs                 |         Owner:  nobody                
            Status:  new                     |     Milestone:                        
         Component:  Generic views           |       Version:  SVN                  
        Resolution:                          |      Keywords:  ajax url generic fetch
             Stage:  Design decision needed  |     Has_patch:  0                    
        Needs_docs:  0                       |   Needs_tests:  0                    
Needs_better_patch:  0                       |  
---------------------------------------------+------------------------------
Changes (by russellm):

  * milestone:  1.2 =>

Comment:

 I'm having difficulty understanding what you're proposing here. Could you
 clarify exactly what it is that this view is for, and what it will
 acheive? Providing some sample code to demonstrate how it would be used
 would be a good start.

--
Ticket URL: <http://code.djangoproject.com/ticket/10840#comment:3>
Django <http://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
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[Django-3]

#10840: URL fetching for AJAX libraries
---------------------------------------------+------------------------------
          Reporter:  mathijs                 |         Owner:  nobody                
            Status:  new                     |     Milestone:                        
         Component:  Generic views           |       Version:  SVN                  
        Resolution:                          |      Keywords:  ajax url generic fetch
             Stage:  Design decision needed  |     Has_patch:  0                    
        Needs_docs:  0                       |   Needs_tests:  0                    
Needs_better_patch:  0                       |  
---------------------------------------------+------------------------------
Comment (by mathijs):

 @qingfeng, you've missed my point here, you still hard-coding the url
 /demo/ajax1/ in your template, plus your tag results in in-line javascript
 tags, which I personnaly loath, plus it is far from toolkit-independent.
 @russellm:
 What I'm talking about is a view returning a JSON object looking something
 like this:
 {
   "named_javascript_view1": "/url_to/named_view1/",
   "named_javascript_view2": "/url_to/named_view2/"
 }

 There are however two use-cases to think about. We can have static urls
 (no parameters in it) and dynamic urls. You can load the static urls once
 and cache them in an array (e.g. views["named_javascript_view1"]), the
 dynamic ones can either be fetched on-demand, or we can use regular
 expressions in the Javascript file. The last option seems better, as long
 as there's no problem with security.

 This generic view would thus load the urls file, parse it and send all
 named views as a JSON response. The achievement would be that AJAX
 requests no longer need hard-coded urls.

 It would be similar to the i18n extensions because you would still need to
 include the url yourself in the urls file. This implementation does not
 require changes to the existing code base, and is as such completely
 modular, in accordance with Django's philosophy.

--
Ticket URL: <http://code.djangoproject.com/ticket/10840#comment:4>
Django <http://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
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[Django-3]

#10840: URL fetching for AJAX libraries
---------------------------------------------+------------------------------
          Reporter:  mathijs                 |         Owner:  nobody                
            Status:  new                     |     Milestone:                        
         Component:  Generic views           |       Version:  SVN                  
        Resolution:                          |      Keywords:  ajax url generic fetch
             Stage:  Design decision needed  |     Has_patch:  0                    
        Needs_docs:  0                       |   Needs_tests:  0                    
Needs_better_patch:  0                       |  
---------------------------------------------+------------------------------
Comment (by mlouro):

 I don't think a generic view is ideal for this, since it would require one
 ajax call to the server to retrieve urls. I have built a simple command
 (dump_urls) that outputs a JS Object Literal with view names and urls that
 I think is a good start for something like this, and a better approach
 design wise. It lives @ http://github.com/mlouro/django-extensions for now



 Example output:

 {
     "task_ajax_complete":
 "/projects/<project_id>/task/ajax/complete/<task_id>/",
     "task_ajax_remove": "/projects/<project_id>/task/ajax/remove_task/",
     "task_delete": "/projects/<project_id>/task/delete/<task_id>/",
     "task_detail": "/projects/<project_id>/task/<task_id>/",
     "task_edit": "/projects/<project_id>/task/save/<task_id>/",
     "task_index": "/projects/<project_id>/task/",
     "time_add": "/projects/<project_id>/time/save/",
     "time_delete": "/projects/<project_id>/time/delete/<time_id>/",
     "time_edit": "/projects/<project_id>/time/save/<time_id>/",
     "time_index": "/projects/<project_id>/time/"
 }

--
Ticket URL: <http://code.djangoproject.com/ticket/10840#comment:5>
Django <http://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
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