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
import os
import sys
if os.name == 'posix':
def become_daemon(our_home_dir='.', out_log='/dev/null',
err_log='/dev/null', umask=022):
"Robustly turn into a UNIX daemon, running in our_home_dir."
# First fork
try:
if os.fork() > 0:
sys.exit(0) # kill off parent
except OSError, e:
sys.stderr.write("fork #1 failed: (%d) %s\n" % (e.errno, e.strerror))
sys.exit(1)
os.setsid()
os.chdir(our_home_dir)
os.umask(umask)
# Second fork
try:
if os.fork() > 0:
os._exit(0)
except OSError, e:
sys.stderr.write("fork #2 failed: (%d) %s\n" % (e.errno, e.strerror))
os._exit(1)
si = open('/dev/null', 'r')
so = open(out_log, 'a+', 0)
se = open(err_log, 'a+', 0)
os.dup2(si.fileno(), sys.stdin.fileno())
os.dup2(so.fileno(), sys.stdout.fileno())
os.dup2(se.fileno(), sys.stderr.fileno())
# Set custom file descriptors so that they get proper buffering.
sys.stdout, sys.stderr = so, se
else:
def become_daemon(our_home_dir='.', out_log=None, err_log=None, umask=022):
"""
If we're not running under a POSIX system, just simulate the daemon
mode by doing redirections and directory changing.
"""
os.chdir(our_home_dir)
os.umask(umask)
sys.stdin.close()
sys.stdout.close()
sys.stderr.close()
if err_log:
sys.stderr = open(err_log, 'a', 0)
else:
sys.stderr = NullDevice()
if out_log:
sys.stdout = open(out_log, 'a', 0)
else:
sys.stdout = NullDevice()
class NullDevice:
"A writeable object that writes to nowhere -- like /dev/null."
def write(self, s):
pass