django : url tag -> how to use a variable as url_name?

Question

I have a django view which declare a target variable :

target  = "name_of_next_view_to_call"
return render(request, template, locals() )

I want to use this target variable into my template, I tried the following :

<form action="{% url '{{target}}' %}" method="post">

which gives me an error :

Reverse for '{{target}}' not found. '{{target}}' is not a valid view function or pattern name.

How to use the value of my "target" variable as the name of the url to be constructed ? From the doc I know it should be possible :

The first argument is a URL pattern name. It can be a quoted literal or any other context variable.

Answer 1

Within template tags, you don't need to mark context variables. They are usually recognized without the braces:

<form action="{% url target %}" method="post">

should work just fine. Just as you have probably used other tags in a similar way:

{% if target %}
# or
{% for obj in object_list %}

While some these examples are listed in the docs for template variables and tags, the point is not explicitly made there.