from PLC.Faults import *
from datetime import datetime as DateTimeType
-# From pgdb
-def _quote(x):
- if isinstance(x, DateTimeType):
- x = str(x)
- elif isinstance(x, unicode):
- x = x.encode( 'utf-8' )
-
- if isinstance(x, types.StringType):
- x = "'%s'" % str(x).replace("\\", "\\\\").replace("'", "''")
- elif isinstance(x, (types.IntType, types.LongType, types.FloatType)):
- pass
- elif x is None:
- x = 'NULL'
- elif isinstance(x, (types.ListType, types.TupleType, set)):
- x = 'ARRAY[%s]' % ', '.join(map(lambda x: str(_quote(x)), x))
- elif hasattr(x, '__pg_repr__'):
- x = x.__pg_repr__()
- else:
- raise pgdb.InterfaceError, 'do not know how to handle type %s' % type(x)
- return x
-
class PostgreSQL:
def __init__(self, api):
self.api = api
self.connection.close()
self.connection = None
- @classmethod
def quote(self, value):
"""
Returns quoted version of the specified value.
"""
- return _quote(value)
+ # The pgdb._quote function is good enough for general SQL
+ # quoting, except for array types.
+ if isinstance (value, (types.ListType, types.TupleType, set)):
+ 'ARRAY[%s]' % ', '.join( [ str(self.quote(x)) for x in value ] )
+ else:
+ try:
+ # up to PyGreSQL-3.x, function was pgdb._quote
+ return pgdb._quote(value)
+ except:
+ # from PyGreSQL-4.0, it's a cursor method
+ return self.cursor()._quote(value)
@classmethod
def param(self, name, value):