def _load_template_source(self, template_name, template_dirs=None):
# The logic should work like this:
# * Try to find the template in the cache. If found, return it.
# * Now check the cache if a lookup for the given template
# has failed lately and hand over control to the next template
# loader waiting in line.
# * If this still did not fail we first try to find a site-specific
# template in the database.
# * On a failure from our last attempt we try to load the global
# template from the database.
# * If all of the above steps have failed we generate a new key
# in the cache indicating that queries failed, with the current
# timestamp.
try:
site = Site.objects.get_current()
except ImproperlyConfigured:
# todo: this probably needs its own try/catch
request = get_request()
site = Site.objects.get_current(request=request)
cache_key = get_cache_key(template_name)
if cache:
try:
backend_template = cache.get(cache_key)
if backend_template:
return backend_template, template_name
except Exception:
pass
# Not found in cache, move on.
cache_notfound_key = get_cache_notfound_key(template_name)
if cache:
try:
notfound = cache.get(cache_notfound_key)
if notfound:
raise TemplateDoesNotExist(template_name)
except Exception:
raise TemplateDoesNotExist(template_name)
# Not marked as not-found, move on...
try:
return self._load_and_store_template(template_name,
cache_key,
site,
sites__in=[site.id])
except (Template.MultipleObjectsReturned, Template.DoesNotExist):
try:
return self._load_and_store_template(template_name,
cache_key,
site,
sites__isnull=True)
except (Template.MultipleObjectsReturned, Template.DoesNotExist):
pass
# Mark as not-found in cache.
cache.set(cache_notfound_key, '1')
raise TemplateDoesNotExist(template_name)
def load_template_source(self, template_name, template_dirs=None):
# The logic should work like this:
# * Try to find the template in the cache. If found, return it.
# * Now check the cache if a lookup for the given template
# has failed lately and hand over control to the next template
# loader waiting in line.
# * If this still did not fail we first try to find a site-specific
# template in the database.
# * On a failure from our last attempt we try to load the global
# template from the database.
# * If all of the above steps have failed we generate a new key
# in the cache indicating that queries failed, with the current
# timestamp.
site = Site.objects.get_current()
display_name = 'dbtemplates:%s:%s:%s' % (settings.DATABASE_ENGINE,
template_name, site.domain)
cache_key = get_cache_key(template_name)
if cache:
try:
backend_template = cache.get(cache_key)
if backend_template:
return backend_template, template_name
except:
pass
# Not found in cache, move on.
cache_notfound_key = get_cache_notfound_key(template_name)
if cache:
try:
notfound = cache.get(cache_notfound_key)
if notfound:
raise TemplateDoesNotExist(template_name)
except:
raise TemplateDoesNotExist(template_name)
# Not marked as not-found, move on...
try:
template = Template.objects.get(name__exact=template_name,
sites__in=[site.id])
return set_and_return(cache_key, template.content, display_name)
except (Template.MultipleObjectsReturned, Template.DoesNotExist):
try:
template = Template.objects.get(name__exact=template_name)
return set_and_return(cache_key, template.content,
display_name)
except Template.DoesNotExist:
pass
# Mark as not-found in cache.
cache.set(cache_notfound_key, '1')
raise TemplateDoesNotExist(template_name)
def load_template_source(self, template_name, template_dirs=None):
# The logic should work like this:
# * Try to find the template in the cache. If found, return it.
# * Now check the cache if a lookup for the given template
# has failed lately and hand over control to the next template
# loader waiting in line.
# * If this still did not fail we first try to find a site-specific
# template in the database.
# * On a failure from our last attempt we try to load the global
# template from the database.
# * If all of the above steps have failed we generate a new key
# in the cache indicating that queries failed, with the current
# timestamp.
site = Site.objects.get_current()
display_name = 'dbtemplates:%s:%s:%s' % (settings.DATABASE_ENGINE,
template_name, site.domain)
cache_key = get_cache_key(template_name)
if cache:
try:
backend_template = cache.get(cache_key)
if backend_template:
return backend_template, template_name
except:
pass
# Not found in cache, move on.
cache_notfound_key = get_cache_notfound_key(template_name)
if cache:
try:
notfound = cache.get(cache_notfound_key)
if notfound:
raise TemplateDoesNotExist(template_name)
except:
raise TemplateDoesNotExist(template_name)
# Not marked as not-found, move on...
try:
template = Template.objects.get(name__exact=template_name,
sites__in=[site.id])
return set_and_return(cache_key, template.content, display_name)
except (Template.MultipleObjectsReturned, Template.DoesNotExist):
try:
template = Template.objects.get(name__exact=template_name)
return set_and_return(cache_key, template.content, display_name)
except Template.DoesNotExist:
pass
# Mark as not-found in cache.
cache.set(cache_notfound_key, '1')
raise TemplateDoesNotExist(template_name)