django-template-analyzer

The template_analyzer package offers an API to analyze the Django template structure. It can be used to find nodes of a particular type, e.g. to do automatic detection of placeholder tags.

Supported features

The scanner finds tags in various situations, including:

• Extend nodes
• Include nodes
• Overwritten blocks with new definitions
• Blocks with or without {{ block.super }}
• Reorganized blocks
• Ignoring nodes outside blocks in extending templates
• Handling multiple levels of super includes

The returned nodes are provided in a natural ordering, as they would be expected to appear in the outputted page.

While Django offers a template.nodelist.get_nodes_of_type() function, this function does not produce the same results.

API example

from django.template.loader import get_template
from mycms.templatetags.placeholdertags import Placeholder
from template_analyzer.djangoanalyzer import get_node_instances

# Load a Django template
template = get_template("mycms/default-page.html")

# Find all tags in the template:
placeholders = get_node_instances(template, Placeholder)

# Read information from the template tag themselves:
# (this is an example, accessing a custom method on the Placeholder object)
placeholder_names = [p.get_name() for p in placeholders]

Installation

First install the module, preferably in a virtual environment. It can be installed from PyPI:

pip install django-template-analyzer

Or the current folder can be installed:

pip install .

Credits

• This package is based on the work of Django CMS.
• Many thanks to the contributors of cms/utils/placeholder.py / cms/utils/plugins.py in Django CMS!