Using variables in jquery in Django template filter

Question

I want to be able to get data using Jquery then apply a Django template filter on it. I am using jinja2 for the template.

I have a click event as to:

$('#get_name').click(function(event){
    var name = $(this).val();
    alert('{{ name|custom_filter}}'); - here is where it is producing the error.
});

I have tried appending it as '{{ " + name + "|custom_filter}}' but still produces an error.

What are you trying to do? Template rendering is done on the server side. Javascript is executed on the client side. — Antoine Pinsard
– Antoine Pinsard, Commented Mar 2, 2016 at 17:18

Antoine Pinsard · Accepted Answer · 2016-03-02 17:23:28Z

3

You cannot mix client-side code and server-side code. You are attempting to apply a template filter to a javascript variable that do not yet exist and is just a piece of text to the template engine. Both scopes are completely different and not even executed on the same machine.

You have to write a javascript function custom_filter (that hopefully does the same thing as the template tag) and just call it:

$('#get_name').click(function(event){
    var name = $(this).val();
    alert(custom_filter(name));
});

Why would you use a template tag for that?

answered Mar 2, 2016 at 17:23

Antoine Pinsard

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