Django template - for look iterate over variable

Question

I am looking for a way to iterate over variable in django template. In template I do not know how to assign variable in for loop.

In get_context_date of ListView i am assigning data of two files to two vars like:

    context[f"{t_name}_header"] = db_oper
    context[f"{t_name}_body"] = db_header

Context is generated for two files which results with vars like:

    context["test1_header"]
    context["test1_body"]
    context["test2_header"]
    context["test2_body"]`

test1 and test2 are names populated from model. I can access them with object_list in template.

In template html file I would like to iterate over context like:

    {% for object in object_list %}
    {% for item in object.name|add:"_header" %} 
    ...do stuff
    {% endfor %}
    {% for item in object.name|add:"_body" %} 
    ...do stuff
    {% endfor %}
    {% endfor %}`

In result in html template I got nothing.

How to properly filter variable in for loop so it could go thru eq. test1_header ?

Answer 1

Maybe you can change your data structure? Using a dict for example:

context['list'] = {}

for t_name in t_names:
    context['list'][t_name] = {"header": db_oper, "body": db_header}

And then in your template:

{% for t_name, data in list.items %}
    <h2>{{ t_name }}</h2>
    {% for item in data.header %} 
        ...do stuff
    {% endfor %}
    {% for item in data.body %} 
        ...do stuff
    {% endfor %}
{% endfor %}