On Sunday, 9 October 2011 20:26:26 UTC+1, Kayode Odeyemi wrote:
>
> Hello,
>
> I'm creating a template tag that will will allow session variables stored
> as strings or
> dict in a view to be available in its template. The syntax is:
>
> {% session_value [view_name] [session_variable] [arg] %}
>
> But at the moment I don't know how I can get Django to stop throwing name
> errors
> on variables/class names that are available. In my code, kwargs,
> NoReverseMatch are all available, but
> Django keeps reporting name errors on them.
>
> Here's the snippet of the code at
> https://github.com/charyorde/session_value/blob/master/templatetags/tags.py
>
> <snip>
>
> I will like to know what I'm doing wrong. How do I prevent these constant
> name errors whenever the
> template tag is registered?
>
> Thanks
>
Look again at the format of the code at that link. It clearly shows what is
wrong: the try/except block starting at line 58 is badly indented, so it is
not counting as part of the `render` method.
This appears to be because you have mixed tabs and spaces. *Never* do that.
In fact, *never* use tabs - always use spaces.
Plus, line 37 is unnecessary - in fact harmful, because you've already
registered the tag with the decorator in line 6. I don't know what happens
if you decorate a function twice with the same decorator, but it's unlikely
to be helpful.
(I won't go into whether or not the whole tag is just an unnecessary rewrite
of `request.session.varname`, or your misunderstanding that session
variables are in some way related to view names, so we'll leave it there.)
--
DR.
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