#23913: = comparison does work in templates although it shouldn't
--------------------------------------+------------------------------------
     Reporter:  googol7               |                    Owner:  nobody
         Type:  Cleanup/optimization  |                   Status:  new
    Component:  Template system       |                  Version:  master
     Severity:  Normal                |               Resolution:
     Keywords:                        |             Triage Stage:  Accepted
    Has patch:  0                     |      Needs documentation:  0
  Needs tests:  0                     |  Patch needs improvement:  0
Easy pickings:  0                     |                    UI/UX:  0
--------------------------------------+------------------------------------
Changes (by bmispelon):

 * needs_better_patch:   => 0
 * needs_tests:   => 0
 * version:  1.7 => master
 * needs_docs:   => 0
 * type:  Bug => Cleanup/optimization
 * stage:  Unreviewed => Accepted


Comment:

 Hi,

 I was surprised to see that the `=` operator does appear to work so I did
 some digging:

 * It only works when surrounded by spaces (eg `{% if 1 = 1 %}` works but
 not `{% if 1=1 %}`
 * It's sortof documented in the `{% if %}` tag's docstring [1]
 * it's not actually documented publicly (as you mentionned)
 * It's not tested (removing the parsing code for it [2] doesn't break any
 test)

 Given all this, I'm in favor of removing that "feature".
 We still should go through the deprecation policy though, just in case
 anyone might be relying on this undocumented and untested feature.

 Thanks!

 [1]
 
https://github.com/django/django/blob/c1552af1fe5832011e3b1c3e5b40c20ff3dbe6f9/django/template/defaulttags.py#L988
 [2]
 
https://github.com/django/django/blob/c1552af1fe5832011e3b1c3e5b40c20ff3dbe6f9/django/template/smartif.py#L102

--
Ticket URL: <https://code.djangoproject.com/ticket/23913#comment:1>
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