The subject block cannot be overwrite when inherit the email template.

[sunshineo]

Is the subject block treated specially and did not get into the Django template inheritance process?
I had to use this work around that is put this in my base.email
{% block subject %}{{ subject }}{% endblock %}

And every time when call send email, the context need to have the subject line.

[BradWhittington]

As a workaround in your base template use the following markup:

{% block subject %}{% block my_subject %}{% endblock %}{% endblock %}

And in your inherited templates:

{% block my_subject %}My subject!{% endblock %}

Due to the way the parser for django's templates works, it's a manual/deep voodoo to get the inheritence to work properly, and needs revisiting to handle this case more effectively...

[sunshineo]

Thank you very much! I should have thought of this workaround. Could you put that in the document?

[awidgery]

Perfect - would be great to have this in the Readme - have just spend half an hour trying to make this work!

[awidgery]

There was a related issue where inheritance wasn't working quite right, when I had nested blocks.

I fixed it, and this original issue, by using block_render.py from here: https://github.com/uniphil/Django-Block-Render

I then replaced in vanilla_django.py the line (78):

response[part] = _get_node(multi_part, render_context, name=part)

with:

 response[part] = block_render.render_block_to_string(full_template_name, part, render_context).strip()

Worked like a charm for me - templates now render correctly with all inheritances.

That only changes the code for multipart emails - but that's all I'm using. A couple of extra lines would do it for HTML- or plain-only.

[BradWhittington]

I'm closing this in favor of fixing inheritence using django-block-render in #29