Merge from trunk

[plcapi.git] / trunk / psycopg2 / examples / lastrowid.py

diff --git a/trunk/psycopg2/examples/lastrowid.py b/trunk/psycopg2/examples/lastrowid.py
new file mode 100644 (file)
index 0000000..205ef6c
--- /dev/null
+++ b/trunk/psycopg2/examples/lastrowid.py
@@ -0,0 +1,59 @@
+# lastrowid.py -  example of using .lastrowid attribute
+#
+# Copyright (C) 2001-2004 Federico Di Gregorio  <fog@debian.org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by the
+# Free Software Foundation; either version 2, or (at your option) any later
+# version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY
+# or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# for more details.
+
+## put in DSN your DSN string
+
+DSN = 'dbname=test'
+
+## don't modify anything below tis line (except for experimenting)
+
+import sys, psycopg2
+
+if len(sys.argv) > 1:
+    DSN = sys.argv[1]
+
+print "Opening connection using dns:", DSN
+conn = psycopg2.connect(DSN)
+curs = conn.cursor()
+
+try:
+    curs.execute("CREATE TABLE test_oid (name text, surname text)")
+except:
+    conn.rollback()
+    curs.execute("DROP TABLE test_oid")
+    curs.execute("CREATE TABLE test_oid (name text, surname text)")
+conn.commit()
+
+data = ({'name':'Federico', 'surname':'Di Gregorio'},
+        {'name':'Pierluigi', 'surname':'Di Nunzio'})
+
+curs.execute("""INSERT INTO test_oid
+                VALUES (%(name)s, %(surname)s)""", data[0])
+
+foid = curs.lastrowid
+print "Oid for %(name)s %(surname)s" % data[0], "is", foid
+
+curs.execute("""INSERT INTO test_oid
+                VALUES (%(name)s, %(surname)s)""", data[1])
+moid = curs.lastrowid
+print "Oid for %(name)s %(surname)s" % data[1], "is", moid
+
+curs.execute("SELECT * FROM test_oid WHERE oid = %s", (foid,))
+print "Oid", foid, "selected %s %s" % curs.fetchone()
+
+curs.execute("SELECT * FROM test_oid WHERE oid = %s", (moid,))
+print "Oid", moid, "selected %s %s" % curs.fetchone()
+
+curs.execute("DROP TABLE test_oid")
+conn.commit()