Django template tag for truncating text

Question

Django has a word tag truncatewords template tag that trims text for a given number of words. But there is nothing like truncatechars.

What is the best way to cut out text in a template with a given character length limit?

Answer 1

It was recently added in Django 1.4. eg:.

 {{ value|truncatechars:9 }} 

See document here

Answer 2

 {{ value|slice:"5" }}{% if value|length > 5 %}...{% endif %} 

Update

Starting with version 1.4, Django has a built-in template tag for this:

 {{ value|truncatechars:9 }} 

Answer 3

I created my own template filter, which adds a "..." to the end (last word) of the line (truncated):

 from django import template register = template.Library() @register.filter("truncate_chars") def truncate_chars(value, max_length): if len(value) > max_length: truncd_val = value[:max_length] if not len(value) == max_length+1 and value[max_length+1] != " ": truncd_val = truncd_val[:truncd_val.rfind(" ")] return truncd_val + "..." return value 

Answer 4

Here it is in the Django documentation, Built-in Tags and Template Filters: truncatechars

Answer 5

You must write your own template filter: http://docs.djangoproject.com/en/dev/howto/custom-template-tags/#writing-custom-template-filters

See how truncatewords is embedded in django.utils.text

Answer 6

If you prefer to create your own template tag, consider using the Django utility.

Then you can put it in the template tag:

 from django import template from django.utils.text import Truncator register = template.Library() @register.filter("custom_truncator") def custom_truncator(value, max_len, trunc_chars=True): truncator = Truncator(value) return truncator.chars(max_len) if trunc_chars else truncator.words(max_len) 

Answer 7

slice

Answer 8

Adding the "truncate" filter was a function request for 4 years, but finally landed in the trunk, as I understand it https://code.djangoproject.com/ticket/5025 - so we are waiting for the next release or use the baggage.