Support multiple content blocks using Nunjucks while honoring the data cascade

[euro]

Is your feature request related to a problem? Please describe.

The njk system supports extends and blocks but this seems to break Eleventy’s data cascade.

Describe the solution you'd like

I would like to see support for multiple named content blocks that can be implemented in templates and identified in the content files.

Describe alternatives you've considered

No response

Additional context

No response

[zachleat]

Related in Liquid: https://liquidjs.com/tags/layout.html#Multiple-Blocks

Gray matter sections seems similar too: #2502

[Seramis]

I'm missing this feature too - really would like to use this feature.

[euro]

I have a solution for this. I'll try to build a quick sample and link it up.

Link up this in eleventy.config:

import bundlerPlugin from '@11ty/eleventy-plugin-bundle';

export default async function (eleventyConfig) {
  eleventyConfig.addPlugin(bundlerPlugin);
};

uses this in the data file:

{% html "fooBar" %}
<p>Example.</p>
{% endhtml %}

and this in the template:

{% getBundle "html", "fooBar" %}

[Seramis]

@euro beware, nested bundles are not supported!
11ty/eleventy-plugin-bundle#20

[zachleat]

Link to the Nunjucks docs: https://mozilla.github.io/nunjucks/templating.html#template-inheritance which also has a shout to https://jinja.palletsprojects.com/en/stable/templates/#template-inheritance

What exactly about the data cascade is missing here?