Custom template filter not working

Question

views.py ``` from django import template register = template.Library() @register.filter def truncatesmart(value, limit=80): """ Truncates a string after a given number of chars keeping whole words. Usage: {{ string|truncatesmart }} {{ string|truncatesmart:50 }} """ try: limit = int(limit) # invalid literal for int() except ValueError: # Fail silently. return value # Make sure it's unicode value = unicode(value) # Return the string itself if length is smaller or equal to the limit if len(value) <= limit: return value # Cut the string value = value[:limit] # Break into words and remove the last words = value.split(' ')[:-1] # Join the words and return return ' '.join(words) + '...' ``` html ``` {% block content %}

{% endblock %} ``` erro…

Accepted Answer

According to the documentation:

For example, if your custom tags/filters are in a file called poll_extras.py, your app layout might look like this:

```
polls/
    models.py
    templatetags/
        __init__.py
        poll_extras.py
    views.py
```

You have defined your templatefilter in views.py. It should be there:

```
yourapp/templatetags/__init__.py
yourapp/templatetags/yourapp_tags.py
```

First, create `yourapp/templatetags/` folder, and `yourapp/templatetags/__init__.py` empty file. Put your templatetag definition in yourapp_tags.py in that folder.

And in your template you would use the following:

```
{% load poll_extras %}
```

Finally, in your template, put {% load yourapp_tags %} to enable the templatetag.

Custom template filter not working

Solution

Problem