Re: [Django] #16391: New URL tag for reversing urls with placeholder args/kwargs

[Django]

#16391: New URL tag for reversing urls with placeholder args/kwargs
+-
 Reporter:  h.a.clifford@…  |Owner:  nobody
 Type:  New feature |   Status:  closed
Component:  Core (URLs) |  Version:  1.3
 Severity:  Normal  |   Resolution:  wontfix
 Keywords:  | Triage Stage:  Someday/Maybe
Has patch:  0   |  Needs documentation:  0
  Needs tests:  0   |  Patch needs improvement:  0
Easy pickings:  0   |UI/UX:  0
+-
Changes (by timgraham):

 * status:  new => closed
 * resolution:   => wontfix


Comment:

 I haven't heard of much demand for this feature, so living as a third-
 party library seems okay to me.

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Re: [Django] #16391: New URL tag for reversing urls with placeholder args/kwargs

[Django]

#16391: New URL tag for reversing urls with placeholder args/kwargs
+-
 Reporter:  h.a.clifford@…  |Owner:  nobody
 Type:  New feature |   Status:  new
Component:  Core (URLs) |  Version:  1.3
 Severity:  Normal  |   Resolution:
 Keywords:  | Triage Stage:  Someday/Maybe
Has patch:  0   |  Needs documentation:  0
  Needs tests:  0   |  Patch needs improvement:  0
Easy pickings:  0   |UI/UX:  0
+-
Changes (by aaugustin):

 * component:  Core (Other) => Core (URLs)


Comment:

 #2615 was a duplicate.

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Ticket URL: 
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Re: [Django] #16391: New URL tag for reversing urls with placeholder args/kwargs

[Django]

#16391: New URL tag for reversing urls with placeholder args/kwargs
+-
 Reporter:  h.a.clifford@…  |Owner:  nobody
 Type:  New feature |   Status:  new
Component:  Core (Other)|  Version:  1.3
 Severity:  Normal  |   Resolution:
 Keywords:  | Triage Stage:  Someday/Maybe
Has patch:  0   |  Needs documentation:  0
  Needs tests:  0   |  Patch needs improvement:  0
Easy pickings:  0   |UI/UX:  0
+-

Comment (by mitar):

 I add this code (with some improvements) [http://django-
 
missing.readthedocs.org/en/latest/templatetags.html#missing.templatetags.url_tags.urltemplate
 to my library].

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Re: [Django] #16391: New URL tag for reversing urls with placeholder args/kwargs

[Django]

#16391: New URL tag for reversing urls with placeholder args/kwargs
+-
 Reporter:  h.a.clifford@…  |Owner:  nobody
 Type:  New feature |   Status:  new
Component:  Core (Other)|  Version:  1.3
 Severity:  Normal  |   Resolution:
 Keywords:  | Triage Stage:  Someday/Maybe
Has patch:  0   |  Needs documentation:  0
  Needs tests:  0   |  Patch needs improvement:  0
Easy pickings:  0   |UI/UX:  0
+-

Comment (by mitar):

 Maybe I am wrong. This simple version works quite nicely:

 {{{
 @register.simple_tag
 def urltemplate(viewname):
 urlconf = urlresolvers.get_urlconf()
 resolver = urlresolvers.get_resolver(urlconf)
 prefix = urlresolvers.get_script_prefix()

 possibilities = resolver.reverse_dict.getlist(viewname)

 if len(possibilities) != 1:
 # TODO: Template tags should not the throwing exceptions (only if
 TEMPLATE_DEBUG is true)
 raise NotImplementedError

 possibility, pattern, defaults = possibilities[0]

 if len(possibility) != 1:
 # TODO: Template tags should not the throwing exceptions (only if
 TEMPLATE_DEBUG is true)
 raise NotImplementedError

 result, params = possibility[0]

 for param in params:
 result = result.replace('%%(%s)s' % param, '{%s}' % param)

 return prefix + result
 }}}

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Re: [Django] #16391: New URL tag for reversing urls with placeholder args/kwargs

[Django]

#16391: New URL tag for reversing urls with placeholder args/kwargs
+-
 Reporter:  h.a.clifford@…  |Owner:  nobody
 Type:  New feature |   Status:  new
Component:  Core (Other)|  Version:  1.3
 Severity:  Normal  |   Resolution:
 Keywords:  | Triage Stage:  Someday/Maybe
Has patch:  0   |  Needs documentation:  0
  Needs tests:  0   |  Patch needs improvement:  0
Easy pickings:  0   |UI/UX:  0
+-
Changes (by mitar):

 * cc: mmitar@… (added)


Comment:

 Without the support in `reverse` which would allow caller to skip regex
 check (but the default would of course still be to check it) it would be
 hard to implement such a tag (which I am also missing) without duplicating
 code (and thus breaking the DRY principle).

 +1 for at least support for `reverse` to have an argument to skip regex
 check. Then tag is simple to implement.

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Re: [Django] #16391: New URL tag for reversing urls with placeholder args/kwargs

[Django]

#16391: New URL tag for reversing urls with placeholder args/kwargs
--+--
   Reporter:  h.a.clifford@…  |  Owner:  nobody
   Type:  New feature | Status:  new
  Milestone:  |  Component:  Core (Other)
Version:  1.3 |   Severity:  Normal
 Resolution:  |   Keywords:
   Triage Stage:  Someday/Maybe   |  Has patch:  0
Needs documentation:  0   |Needs tests:  0
Patch needs improvement:  0   |  Easy pickings:  0
  UI/UX:  0   |
--+--
Changes (by jacob):

 * stage:  Design decision needed => Someday/Maybe


Comment:

 I agree with jezdez - this is something that'd be best done in a third-
 party app. I'm not going to close this ticket, but I am going to stick it
 in "someday/maybe" purgatory. I think it's a good idea, but the way to get
 this in Django is to start with a solid third-party implementation and
 then push to get that in.

 Thanks!

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Re: [Django] #16391: New URL tag for reversing urls with placeholder args/kwargs

[Django]

#16391: New URL tag for reversing urls with placeholder args/kwargs
-+-
   Reporter: |  Owner:  nobody
  h.a.clifford@… | Status:  new
   Type:  New|  Component:  Core (Other)
  feature|   Severity:  Normal
  Milestone: |   Keywords:
Version:  1.3|  Has patch:  0
 Resolution: |Needs tests:  0
   Triage Stage:  Design |  Easy pickings:  0
  decision needed|
Needs documentation:  0  |
Patch needs improvement:  0  |
  UI/UX:  0  |
-+-

Comment (by anonymous):

 To follow up on this, would also be useful with URI templates:

 http://code.google.com/p/uri-templates/
 http://bitworking.org/projects/URI-Templates

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Re: [Django] #16391: New URL tag for reversing urls with placeholder args/kwargs

[Django]

#16391: New URL tag for reversing urls with placeholder args/kwargs
-+-
   Reporter: |  Owner:  nobody
  h.a.clifford@… | Status:  new
   Type:  New|  Component:  Core (Other)
  feature|   Severity:  Normal
  Milestone: |   Keywords:
Version:  1.3|  Has patch:  0
 Resolution: |Needs tests:  0
   Triage Stage:  Design |  Easy pickings:  0
  decision needed|
Needs documentation:  0  |
Patch needs improvement:  0  |
  UI/UX:  0  |
-+-
Description changed by ramiro:

Old description:

> It would be incredibly useful if Django supported a placeholder url tag:
>
> usage would be similar to url, but with args/kwargs that don't match the
> url regex.
>
> E.g: {% urlplaceholder User username='<%username%>' %}, where my url rule
> only allows a-z usernames.
> (Currently, you can't do this).
>
> This isn't a huge change which is why I'm suggesting it (line 325
> urlresolves does the regex check after substituting in the values)
>
> Why is this useful? It would allow *easy* generation of javascript
> templates on the frontend - all the current methods seem to involve
> reversing the urls with javasacript which is hardly in keeping DRY.
>
> Example:
>
> 
> ' %}'>
> 
> 
> 

New description:

 It would be incredibly useful if Django supported a placeholder url tag:

 usage would be similar to url, but with args/kwargs that don't match the
 url regex.

 E.g: `{% urlplaceholder User username='<%username%>' %}`, where my url
 rule only allows a-z usernames.
 (Currently, you can't do this).

 This isn't a huge change which is why I'm suggesting it (line 325
 urlresolves does the regex check after substituting in the values)

 Why is this useful? It would allow *easy* generation of javascript
 templates on the frontend - all the current methods seem to involve
 reversing the urls with javasacript which is hardly in keeping DRY.

 Example:
 {{{
 
 ' %}'>
 
 
 
 }}}

--

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Re: [Django] #16391: New URL tag for reversing urls with placeholder args/kwargs

[Django]

#16391: New URL tag for reversing urls with placeholder args/kwargs
-+-
   Reporter: |  Owner:  nobody
  h.a.clifford@… | Status:  new
   Type:  New|  Component:  Core (Other)
  feature|   Severity:  Normal
  Milestone: |   Keywords:
Version:  1.3|  Has patch:  0
 Resolution: |Needs tests:  0
   Triage Stage:  Design |  Easy pickings:  0
  decision needed|
Needs documentation:  0  |
Patch needs improvement:  0  |
  UI/UX:  0  |
-+-

Comment (by jezdez):

 This sounds like a great idea for a 3rd party app, that would provide
 helpers for JavaScript development.

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