#18979: PermWrapper + template "if in" interaction
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Reporter: akaariai | Owner: nobody
Type: Bug | Status: new
Component: Template system | Version: 1.4
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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Trying to do
{{{
{% if 'someperm' in perms.someapp %}has perm{% else %}no perm{% endif %}
}}}
will result in endless loop. Above, the perms is !PermWrapper as installed
by the !RequestContext.
Doing {{{ if perms.someapp.someperm }}} works correctly. I tried the above
because I have a permission codename (from external database) which
contains '-', so I can't use the documented syntax.
The attached tester project shows this error. run devserver, click the
link, and you will have the dev-server in endless loop which isn't even
killable by Ctrl-c... So, be prepared to kill the server by force.
I know the above isn't documented use of !PermWrapper. But, to me it seems
this bug isn't a !PermWrapper bug, what it does looks sane to me. So, I am
suspecting there could be some underlying bug in the template engine. So,
I am marking this into Template system, though the bug could be elsewhere,
too.
Tested with 1.4.1 and 1.5.dev20120918050907 with Python 2.7.3.
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Ticket URL: <https://code.djangoproject.com/ticket/18979>
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