Friday, August 04, 2006

Python AttributeError: 'Cursor' object has no attribute 'insert_id'

Hello guys. At this time, i would share my previous experience and still about python.

I've a database table named "test" with the structure below :

+-------+-------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------+-------------+------+-----+---------+----------------+
| id | tinyint(4) | | PRI | NULL | auto_increment |
| nama | varchar(30) | YES | | NULL | |
+-------+-------------+------+-----+---------+----------------+


And below is my python script :

#!/usr/bin/python

# import MySQL module
import MySQLdb

# get user input
name = raw_input("Please enter a name: ")

# connect
db = MySQLdb.connect(host="localhost", user="nobody", passwd="nobody", db="qestar", unix_socket="/tmp/mysql.sock")

# create a cursor
cursor = db.cursor()

# execute SQL statement
cursor.execute("INSERT INTO test (nama) VALUES (%s)", name)

# get ID of last inserted record
print "ID of inserted record is ", int(cursor.insert_id())


For a note, the data successfully inserted to the database, but when i wanna get the last inserted record there are an error like this below :

ID of inserted record is
Traceback (most recent call last):
File "./mysql_06.py", line 19, in ?
print "ID of inserted record is ", int(cursor.insert_id())
AttributeError: 'Cursor' object has no attribute 'insert_id'


Why i got an error like that? Is that the attribute calling name changed and not insert_id() any more ???
Ok, i would explaining to you.

To get the last inserted record on MySQL with python use cursor.lastrowid
So, the python source code would be like this :

#!/usr/bin/python

# import MySQL module
import MySQLdb

# get user input
name = raw_input("Please enter a name: ")

# connect
db = MySQLdb.connect(host="localhost", user="nobody", passwd="nobody", db="qestar", unix_socket="/tmp/mysql.sock")

# create a cursor
cursor = db.cursor()

# execute SQL statement
cursor.execute("INSERT INTO test (nama) VALUES (%s)", name)

# get ID of last inserted record
print "ID of inserted record is ", int(cursor.lastrowid)


Thank you to Mico Siahaan for helping me on solve the problem.

5 comments:

Tamas said...

Thanks dude, that saved my ass!

charlesnadeau said...

Thanks! This saved me too. Not documented anywhere. How did you find it?

Donald said...

Wow, this helped me a bunch. Thanks! Where is this change documented?

Vincseize said...

Great thx to you

Farhad said...

cursor.lastrowid does not work any more! Changed again??