Adust the as_table tag to render a pick link if appropriate
The templates are adjusted to pass on a 'reference' value, which
is the url_name of the view from which the entity should be picked.
The as_table (and related) function(s) construct and then pass on
this argument and enable takes_contex so that we have access to the
context of the enclosing template.
We only extract ReferenceProperties that end with '_link_id' since
that is how all RP's are currently named. It is not possible to
create a field with the same name as the RP, as GAE will try to
interpret it's contents as the key of an entity before even calling
any function we can override.
Patch by: Sverre Rabbelier
"""
Wrapper for loading templates from "template" directories in INSTALLED_APPS
packages.
"""
import os
from django.conf import settings
from django.core.exceptions import ImproperlyConfigured
from django.template import TemplateDoesNotExist
from django.utils._os import safe_join
# At compile time, cache the directories to search.
app_template_dirs = []
for app in settings.INSTALLED_APPS:
i = app.rfind('.')
if i == -1:
m, a = app, None
else:
m, a = app[:i], app[i+1:]
try:
if a is None:
mod = __import__(m, {}, {}, [])
else:
mod = getattr(__import__(m, {}, {}, [a]), a)
except ImportError, e:
raise ImproperlyConfigured, 'ImportError %s: %s' % (app, e.args[0])
template_dir = os.path.join(os.path.dirname(mod.__file__), 'templates')
if os.path.isdir(template_dir):
app_template_dirs.append(template_dir)
# It won't change, so convert it to a tuple to save memory.
app_template_dirs = tuple(app_template_dirs)
def get_template_sources(template_name, template_dirs=None):
"""
Returns the absolute paths to "template_name", when appended to each
directory in "template_dirs". Any paths that don't lie inside one of the
template dirs are excluded from the result set, for security reasons.
"""
if not template_dirs:
template_dirs = app_template_dirs
for template_dir in template_dirs:
try:
yield safe_join(template_dir, template_name)
except UnicodeDecodeError:
# The template dir name was a bytestring that wasn't valid UTF-8.
raise
except ValueError:
# The joined path was located outside of template_dir.
pass
def load_template_source(template_name, template_dirs=None):
for filepath in get_template_sources(template_name, template_dirs):
try:
return (open(filepath).read().decode(settings.FILE_CHARSET), filepath)
except IOError:
pass
raise TemplateDoesNotExist, template_name
load_template_source.is_usable = True