Django 3 Web Development Cookbook - Fourth Edition

How to do it...

An advanced custom template tag consists of a function that parses the arguments that are passed to the tag, and the Node class that renders the output of the tag or modifies the template context. Perform the following steps to create the {% load_objects %} template tag:

1. First, let's create the function that handles the parsing of the template-tag arguments, as follows:

# myproject/apps/core/templatetags/utility_tags.pyfrom django import templatefrom django.apps import appsregister = template.Library()""" TAGS """@register.tagdef load_objects(parser, token):    """    Gets a queryset of objects of the model specified by app and    model names    Usage:        {% load_objects [<manager>.]<method>                        from <app_name>.<model_name> [limit <amount>] ...