themes.py

gistfile1.py

from django.template.base import TemplateDoesNotExist
from django.template.loader import BaseLoader
from django.utils._os import safe_join
from django.conf import settings
from backend.models import Theme

__author__ = 'cingusoft'


class Loader(BaseLoader):

    is_usable = True

    def recur_template_folders(self,template_name, themes_selector, template_dirs):
        tried =[]
        for template_dir in template_dirs:
            try:
                filepath = safe_join(template_dir,themes_selector,template_name)
                with open(filepath,'rb') as fp:
                    return (fp.read().decode(settings.FILE_CHARSET), filepath)
            except UnicodeDecodeError:
                raise
            except ValueError:
                continue
            except IOError:
                tried.append(filepath)
        else:
            if tried:
                #first check if default folder is scanned
                if themes_selector != "default":
                    return self.recur_template_folders(template_name,"default",template_dirs)
                else:
                    error_msg = "Tried %s" % tried
                    raise TemplateDoesNotExist(error_msg)

    def load_template_source(self, template_name, template_dirs=None):
        tried = []

        if not template_dirs:
            if len(settings.TEMPLATE_DIRS) != 0:
                template_dirs = settings.TEMPLATE_DIRS
            else:
                error_msg = "Your TEMPLATE_DIRS setting is empty. Change it to point to at least one template directory."
                raise TemplateDoesNotExist(error_msg)

        try:
            themes_db = Theme.objects.get(is_default=True)
            themes_selector = themes_db.name
        except Themes.DoesNotExist:
            themes_selector = "default"

        return self.recur_template_folders(template_name,themes_selector,template_dirs)