def configDelete(self, idx, namefunc=defaultNamefunc):
"""
Delete a configuration from the database. Assumes inside a
transaction, but does not commit the change.
Parameters
----------
idx : int
A database ID for the configuration to be deleted.
namefunc : int -> str
A function to provide human-readable names for the database ID.
(A useful function is not really defined here.)
Returns
-------
Nothing
If the deletion fails, errors are appended to the transaction
errorlist.
"""
try:
if self.cur.execute("select id from %s where config = %%s" % self.table, (idx,)) != 0:
self.errorlist.append(
_mysql_exceptions.Error(0,
"Can't delete configuration %s, still in use." % namefunc(idx)))
return
self.cur.execute("delete from %s_cfg where id = %%s" % self.table, (idx,))
except _mysql_exceptions.Error as e:
self.errorlist.append(e)
def configDelete(self, idx, namefunc=defaultNamefunc):
try:
if self.cur.execute("select id from %s where config = %%s" % self.table, (idx,)) != 0:
self.errorlist.append(
_mysql_exceptions.Error(0,
"Can't delete configuration %s, still in use." % namefunc(idx)))
return
self.cur.execute("delete from %s_cfg where id = %%s" % self.table, (idx,))
except _mysql_exceptions.Error as e:
self.errorlist.append(e)
def transaction_error(self, msg):
"""
Indicate an error during a database transaction.
Parameters
----------
msg : str
An error string.
Returns
-------
None
"""
self.errorlist.append(_mysql_exceptions.Error(0, msg))
def transaction_error(self, msg):
self.errorlist.append(_mysql_exceptions.Error(0, msg))