Pass context to template tag override

[tbrlpld]

Is your proposal related to a problem?

When overriding a template tag you have the option to render another template in its place.

Currently, only the existing template context (from the yaml file) of that template will be taken into account.
It would be nice to have the option to pass context overrides to the template.

Describe the solution you'd like

E.g. in a template override like this:

tags:
  include_block:
    tl with size="2xl" heading_level=sub_heading_level:
      template_name: "atoms/teaser-link/teaser-link.html"

I would love to be able to do something like this:

tags:
  include_block:
    tl with size="2xl" heading_level=sub_heading_level:
      template_name: "atoms/teaser-link/teaser-link.html"
      context_override: 
        size: "2xl"
        heading: "Overrding the heading form the template context yaml"

Describe alternatives you've considered

An alternative is to create specific variants of the template I really want to use. That has the tendency to clutter the template directly.

[thibaudcolas]

Looking at the code, this seems relatively simple to implement. Read the context overrides and pass them to render_pattern:

django-pattern-library/pattern_library/monkey_utils.py

Lines 54 to 60 in 0182512

	elif "template_name" in tag_config:
	# Render pattern, if raw string is not defined
	template_name = tag_config["template_name"]
	request = context.get("request")
	result = render_pattern(
	request, template_name, allow_non_patterns=True
	)

render_pattern already supports providing context for the template to render, however currently providing said context would skip reading that template’s .yaml file. I assume that’s the desired behavior in this case(?).

django-pattern-library/pattern_library/utils.py

Lines 143 to 152 in 0182512

	def render_pattern(request, template_name, allow_non_patterns=False, config=None):
	if not allow_non_patterns and not is_pattern(template_name):
	raise TemplateIsNotPattern
	if not config:
	config = get_pattern_config(template_name)
	context = config.get("context", {})
	tags = config.get("tags", {})
	mark_context_strings_safe(context)