CODEWITHSUNDEEP
pythonjinja2
Tom Christie
Tom Christie

Reputation: 33901

Separate "includes" and "templates" directories for Jinja2

I'm looking for a way to have separate 'template' and 'includes' directories with Jinja2 and only allow

For example say I have the following directory layout:

/templates/
    base.html
/includes/
    header.html
    footer.html

I'd like to ensure that the application level get_template only has base.html visible to it, and that the include template statement only has header.html and footer.html available to it.

I'm aware that I can add both directories to the loader, eg:

loader = jinja2.FileSystemLoader(['/templates/', '/includes/'])
env = jinja2.Environment(loader=loader)
template = env.get_template('base.html')

But this doesn't give me the strict separation of the two different template types that I'm looking for.

Is there any way to enforce this separation, so that .get_template('base.html') will succeed, but {% include 'base.html' %} will fail?

Is there some way I can use two different loaders, one to get the template initially, and a second that'll be used when rendering that template?

For example, could I do something like this?...

base_loader = jinja2.FileSystemLoader('/templates/')
includes_loader = jinja2.FileSystemLoader('/includes/')

base_env = jinja2.Environment(loader=base_loader)
includes_env = jinja2.Environment(loader=includes_loader)

template = env.get_template('base.html')
template.env = includes_env

Upvotes: 3

Views: 1358

Answers (1)

Tom Christie
Tom Christie

Reputation: 33901

The template instance has an environment property, so it looks like it's possible to do this...

base_loader = jinja2.FileSystemLoader('/templates/')
includes_loader = jinja2.FileSystemLoader('/includes/')

base_env = jinja2.Environment(loader=base_loader)
includes_env = jinja2.Environment(loader=includes_loader)

template = base_env.get_template('base.html')
template.environment = includes_env

This should ensure that only files in the /includes/ directory are available to the {% include ... %} template statement.

Edit: changed env to base_env in line 7 of the code.

Upvotes: 1

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