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Fixes #2384,#2566 -- Clarify the role that TEMPLATE_STRING_IF_INVALID plays in the template system, and the problems that can occur if it is used on a production site. 

git-svn-id: http://code.djangoproject.com/svn/django/trunk@3901 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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Russell Keith-Magee 2006-10-13 14:26:08 +00:00
parent f83e439efa
commit 73a6eb8ed0
1 changed files with 15 additions and 0 deletions
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docs/templates_python.txt
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@ -212,6 +212,21 @@ template tags. If an invalid variable is provided to one of these template
tags, the variable will be interpreted as ``None``. Filters are always tags, the variable will be interpreted as ``None``. Filters are always
applied to invalid variables within these template tags. applied to invalid variables within these template tags.
.. admonition:: For debug purposes only!
While ``TEMPLATE_STRING_IF_INVALID`` can be a useful debugging tool,
it is a bad idea to turn it on as a 'development default'.
Many templates, including those in the Admin site, rely upon the
silence of the template system when a non-existent variable is
encountered. If you assign a value other than ``''`` to
``TEMPLATE_STRING_IF_INVALID``, you will experience rendering
problems with these templates and sites.
Generally, ``TEMPLATE_STRING_IF_INVALID`` should only be enabled
in order to debug a specific template problem, then cleared
once debugging is complete.
Playing with Context objects Playing with Context objects
---------------------------- ----------------------------