Getting TemplateSyntaxError when trying to use Jinja's replace filter

Asked Feb 21 '18 at 06:34

Active Nov 10 '20 at 14:25

Viewed 356 times

Below is the snip of code I am using.

<ul class="article_list">
{%for article in articles %}

<li><a href="{{article.title|replace(' ','-')}}">{{article.title}}</a></li>

{%endfor%}
</ul>

This is the exception I get.

Invalid filter: 'replace'
Request Method: GET
Request URL:    http://127.0.0.1:8000/Mathematics/
Django Version: 1.10.5
Exception Type: TemplateSyntaxError
Exception Value:    
Invalid filter: 'replace'

My intention is to redirect user to http://127.0.0.1:8000/mathematics/how-to-use-replace-in-jinga when they click on the article: How to use replace in jinga

Please help.

edited Feb 21 '18 at 06:43

asked Feb 21 '18 at 06:34

Sudhan Nadar

I found it in http://jinja.pocoo.org/docs/2.10/templates/#other-operators, its under list of builtin filters – Sudhan Nadar Feb 21 '18 at 06:37
In the traceback you should be able to see a template engine field. Check what is the template-engine. Is is it jinja? – Arpit Solanki Feb 21 '18 at 06:39
@ArpitSolanki can you give a keyword I could Ctrl-F the error? – Sudhan Nadar Feb 21 '18 at 06:44
search for engine or template or render like keywords in the traceback – Arpit Solanki Feb 21 '18 at 06:45
there is not a single mention of jinga anywhere. – Sudhan Nadar Feb 21 '18 at 06:49
You should refer to this https://stackoverflow.com/questions/30701631/how-to-use-jinja2-as-a-templating-engine-in-django-1-8?answertab=active#tab-top It will show you how to setup jinja as template engine. Problem is django is using its template engine and thus giving you the error – Arpit Solanki Feb 21 '18 at 06:55
then how is that it works fine when I did
{{article.title}}

Sudhan Nadar

Feb 21 '18 at 06:58

Because `replace` is jimja's template filter and it is not available in django's default template engine. You can not use jinja's template filters from django's template engine you have to setup jinja as your template engine in your django app – Arpit Solanki Feb 21 '18 at 07:00

okay thanks, i'll try. – Sudhan Nadar Feb 21 '18 at 07:03

Getting TemplateSyntaxError when trying to use Jinja's replace filter

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