psycopg2.extensions.register_type(psycopg2._psycopg.UNICODEARRAY)
import pgdb
+import types
from types import StringTypes, NoneType
import traceback
import commands
from PLC.Debug import profile, log
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.connection.close()
self.connection = None
- # join insists on getting strings
- @classmethod
- def quote_string(self, value):
- return str(PostgreSQL.quote(value))
-
@classmethod
def quote(self, value):
"""
Returns quoted version of the specified value.
"""
-
- # The pgdb._quote function is good enough for general SQL
- # quoting, except for array types.
- if isinstance(value, (list, tuple, set)):
- return "ARRAY[%s]" % ", ".join(map (PostgreSQL.quote_string, value))
- else:
- return pgdb._quote(value)
+ return _quote(value)
@classmethod
def param(self, name, value):
return self.rowcount
def next_id(self, table_name, primary_key):
- sequence = "%(table_name)s_%(primary_key)s_seq" % locals()
- sql = "SELECT nextval('%(sequence)s')" % locals()
- rows = self.selectall(sql, hashref = False)
- if rows:
- return rows[0][0]
-
- return None
+ sequence = "%(table_name)s_%(primary_key)s_seq" % locals()
+ sql = "SELECT nextval('%(sequence)s')" % locals()
+ rows = self.selectall(sql, hashref = False)
+ if rows:
+ return rows[0][0]
+
+ return None
def last_insert_id(self, table_name, primary_key):
if isinstance(self.lastrowid, int):
return None
- # modified for psycopg2-2.0.7
+ # modified for psycopg2-2.0.7
# executemany is undefined for SELECT's
# see http://www.python.org/dev/peps/pep-0249/
# accepts either None, a single dict, a tuple of single dict - in which case it execute's