#16389: In Django 1.3, dictionary lookup now calls the value if callable making
classes unusable
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Reporter: iElectric | Owner: nobody
Type: Bug | Status: closed
Milestone: | Component: Template system
Version: 1.3 | Severity: Normal
Resolution: invalid | Keywords: template lookup
Triage Stage: | dictionary callable
Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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Comment (by iElectric):
This change will break quite some production ecosystems and it took me
quite some time to debug (since templates eats all error messages).
Currently there is no way to pass classes to templating system, I guess
Django is more and more leaning to the point you can only pass variables,
list of variables or dict of variables to it. Everything else bites you
back.
This approach forces you to use refactored views to utility functions,
which is rather writing bolierplate code because your templating engine
does some magic calling leaving you grounded.
My proposition is to explicitly add documentation as examples that used to
work Django 1.2, because the Django 1.3 change line might not be enough to
trigger association of using classes and instances in templates.
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Ticket URL: <https://code.djangoproject.com/ticket/16389#comment:2>
Django <https://code.djangoproject.com/>
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