Django包含模板问题，从0.96到1.2

Question

I using google app engine, in 0.96 I have no problem to include a template as following

{% include "../header.html" %}

However, in 1.2 the code above not functioning??

Any idea?

Answer 1

The reason is that google.appengine.ext.webapp.template.render doesn't use any user-configurable TEMPLATE_DIRS . Instead it invents its own TEMPLATE_DIRS byt taking the directory of the given template and using that at TEMPLATE_DIRS . This means if you call render("foo/bar/fie") it will use foo/bar as your template directory and look up files from there.

Now, the change from 0.96 til 1.2 is that the file lookup switched from using os.path.join to using django.utils._os.safe_join which does not allow escape from the base directory using ../ .

I don't see any obvious way around this. It seems like you must call render with a file directly in your template directory and not in a subdirectory.

Answer 2

dkagedal is correct in his assessment of the problem, but there's is an easy workaround if you're not averse to monkeypatching:

try:
  # Bypass Django's safe_join for template paths since App Engine sandboxes the
  # filesystem anyway, and safe_join won't allow relative includes because
  # webapp.template always sets the template's parent directory as the "root",
  # rather than the app's real root directory.
  from django.utils import _os
  _os.safe_join = os.path.join
except ImportError:
  pass  # App is using a version of Django that doesn't use safe_join, it's OK.

Answer 3

It seems strange that that's not working- it is the correct syntax for the tag...

How is it not working? Not bringing in the data at all? Error message?

Is header.html just regular the body sections of the html? or is it a full standalone html page? (ie does it have html, head, body, tags etc? or just h, p, etc?)

Maybe try using the {% ssi %} tag as documented here: SSI Template Tag