This code works. Note the commented out line.
for v in form.vars:
if v[:7] == 'remove_' and form.vars[v] == 'on':
# del db.class_users[v[7:]]
db(db.class_users.id==v[7:]).delete()
This code, which should be equivalent, raises the exception shown below.
for v in form.vars:
if v[:7] == 'remove_' and form.vars[v] == 'on':
del db.class_users[v[7:]]
Traceback (most recent call last):
File "/home/cjk/w2p09/web2py/gluon/restricted.py", line 209, in restricted
exec ccode in environment
File
"/home/cjk/w2p09/web2py/applications/Training/controllers/class_users.py"
<http://localhost:8000/admin/default/edit/Training/controllers/class_users.py>,
line 371, in <module>
File "/home/cjk/w2p09/web2py/gluon/globals.py", line 186, in <lambda>
self._caller = lambda f: f()
File "/home/cjk/w2p09/web2py/gluon/tools.py", line 2809, in f
return action(*a, **b)
File
"/home/cjk/w2p09/web2py/applications/Training/controllers/class_users.py"
<http://localhost:8000/admin/default/edit/Training/controllers/class_users.py>,
line 165, in list_
if form.process(onvalidation=do_updates).accepted:
File "/home/cjk/w2p09/web2py/gluon/html.py", line 2108, in process
self.validate(**kwargs)
File "/home/cjk/w2p09/web2py/gluon/html.py", line 2055, in validate
if self.accepts(**kwargs):
File "/home/cjk/w2p09/web2py/gluon/html.py", line 1969, in accepts
onvalidation(self)
File
"/home/cjk/w2p09/web2py/applications/Training/controllers/class_users.py"
<http://localhost:8000/admin/default/edit/Training/controllers/class_users.py>,
line 134, in do_updates
del db.class_users[v[7:]]
File "/home/cjk/w2p09/web2py/gluon/dal.py", line 7691, in __delitem__
raise SyntaxError, 'No such record: %s' % key
SyntaxError: No such record: 7
--
