Error in tutorial part 4 : if error_message test doesn't work

[marco_2025]

In the template vote/detail.html, you have this test :
{% if error_message %}<p><strong>{{ error_message }}</strong></p>{% endif %}

I think this doesn't work (at least on my machine), because 'error_message' never equals 'true' (it contains a string with the error message).

[Karen Tracey <kmtracey@…>]

The test works as written. Per the doc on the if tag:

​http://docs.djangoproject.com/en/dev/ref/templates/builtins/#if

the test evaluates to "true" if the variable argument "exists, is not empty, and is not a false boolean value".

If this is not working correctly on your machine something weird is going on.