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How to use a template filter in a custom template tag?

I have a problem with django regarding template tags. I have a template tag with a name modal_formwith 4 arguments. This template tag works great with basic variables like:

{% modal_form "clients" contact_form "Contacts" "contact" %}

But this does not work when I try to filter a variable inside my custom template tag, for example:

{% modal_form "parameters" form_dict|key:parameter parameter name_dict|key:parameter %}

This custom filter also works great outside the tag (this filter gets the dict value on a specific key). I have this error:

Caught VariableDoesNotExist on rendering: failed key search [Form_dict | key: parameter]

Maybe I need to write the tag differently to support the filter inside?

This is my code for the tag:

def modal_form(app, object_form, object_name, object_verbose_name):
    return { 'app': app, 'object_form': object_form, 'object_name': object_name, 'object_verbose_name': object_verbose_name }

register.inclusion_tag('tags/modal_form.html')(modal_form)

And my code for the filter:

def key(d, key_name):
    try:
        value = d[key_name]
    except KeyError:
        #from django.conf import settings

        #value = settings.TEMPLATE_STRING_IF_INVALID
        value = 0

    return value
key = register.filter('key', key)

Do you have any ideas? Do you want more code?

Thanks in advance for your answers.

+5
1

, :

{% with var_one=form_dict|key:parameter var_two=name_dict|key:parameter %}
    {% modal_form "parameters" var_one parameter var_two %}
{% endwith %}
+7

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