TemplateContent content type patch for Django 1.8

[Janos Bekesi]

Hi all, 

while updating a feincms project to Django 1.8 (LTS), all stuff using TemplateContent content type broke. Django 1.8 uses a new template code to allow for various templating engines, which is not compatible with latest feincms (1.11.4).

I tried to fix it, and got a working solution, albeit somewhat patchy and not very thoroughly tested. If anyone has this problem, feel free to use the patch as a starting point. One could insert a django version detection to choose code variants, but I did not need this (it is a quick patch after all).

BTW, I think future versions of FeinCMS will use Djangos new templating code, so this patch will become obsolete for newer installations. The file to patch is feincms/content/template/models.py; see the code changes and the complete file (as attachment): 

try:
    # the old version:
    from django.template.loader import (
                Context, Template, TemplateDoesNotExist, find_template_loader)
except ImportError:
    from django.template import Context, Template
    from django.template.loader import  TemplateDoesNotExist
    from django.template.engine import Engine


# ...


@classmethod
    def initialize_type(cls, TEMPLATE_LOADERS=DEFAULT_TEMPLATE_LOADERS,
                        TEMPLATE_PATH='content/template'):
        cls.template_path = TEMPLATE_PATH
        engine = Engine() # account for the new template engine in Django 1.8
        for loader in TEMPLATE_LOADERS:
            if loader:
                # With Django 1.6 find_template_loader blows up during
                # syncdb, probably because component initialization order
                # has changed. Work around by ignoring exceptions here,
                # but of course, this will also swallow legitimate
                # exceptions. Tough luck :-(
                try:
                    # was: cls.template_loaders.append(find_template_loader(loader))
                    cls.template_loaders.append(engine.find_template_loader(loader))
                except Exception:
                    pass

Have fun,

   Janos

[Martin J. Laubach]

Oh, great, thanks. I think Matthias has removed the template content for post 1.11.4 because of exactly that problem, but if that works well most of the time (ie. everybody who doesn't use a different templating engine), we can bring it back.