Tanmoy Sarkar Tanmoy Sarkar - 3 months ago 13
MySQL Question

TypeError: 'connection' object is not callable in python using mysqldb

from flask import Flask
from flask_restful import Resource, Api
from flask_restful import reqparse
from flask_mysqldb import MySQL



mysql = MySQL()
app = Flask(__name__)

# MySQL configurations
app.config['MYSQL_USER'] = 'root'
app.config['MYSQL_PASSWORD'] = ''
app.config['MYSQL_DB'] = 'itemlistdb'
app.config['MYSQL_HOST'] = 'localhost'




mysql.init_app(app)

api = Api(app)

class AuthenticateUser(Resource):
def post(self):
try:
# Parse the arguments

parser = reqparse.RequestParser()
parser.add_argument('email', type=str, help='Email address for Authentication')
parser.add_argument('password', type=str, help='Password for Authentication')
args = parser.parse_args()

_userEmail = args['email']
_userPassword = args['password']

conn = mysql.connection
cursor = conn.cursor()
cursor.callproc('sp_AuthenticateUser',(_userEmail,))
data = cursor.fetchall()


if(len(data)>0):
if(str(data[0][2])==_userPassword):
return {'status':200,'UserId':str(data[0][0])}
else:
return {'status':100,'message':'Authentication failure'}

except Exception as e:
return {'error': str(e)}


class GetAllItems(Resource):
def post(self):
try:
# Parse the arguments
parser = reqparse.RequestParser()
parser.add_argument('id', type=str)
args = parser.parse_args()

_userId = args['id']

conn = mysql.connection
cursor = conn.cursor()
cursor.callproc('sp_GetAllItems',(_userId,))
data = cursor.fetchall()

items_list=[];
for item in data:
i = {
'Id':item[0],
'Item':item[1]
}
items_list.append(i)

return {'StatusCode':'200','Items':items_list}

except Exception as e:
return {'error': str(e)}

class AddItem(Resource):
def post(self):
try:
# Parse the arguments
parser = reqparse.RequestParser()
parser.add_argument('id', type=str)
parser.add_argument('item', type=str)
args = parser.parse_args()

_userId = args['id']
_item = args['item']

print _userId;

conn = mysql.connection
cursor = conn.cursor()
cursor.callproc('sp_AddItems',(_userId,_item))
data = cursor.fetchall()

conn.commit()
return {'StatusCode':'200','Message': 'Success'}

except Exception as e:
return {'error': str(e)}



class CreateUser(Resource):
def post(self):
try:
# Parse the arguments
parser = reqparse.RequestParser()
parser.add_argument('email', type=str, help='Email address to create user')
parser.add_argument('password', type=str, help='Password to create user')
args = parser.parse_args()

_userEmail = args['email']
_userPassword = args['password']

conn = mysql.connection
cursor = conn.cursor()
cursor.callproc('spCreateUser',(_userEmail,_userPassword))
data = cursor.fetchall()

if len(data) is 0:
conn.commit()
return {'StatusCode':'200','Message': 'User creation success'}
else:
return {'StatusCode':'1000','Message': str(data[0])}

except Exception as e:
return {'error': str(e)}



api.add_resource(CreateUser, '/CreateUser')
api.add_resource(AuthenticateUser, '/AuthenticateUser')
api.add_resource(AddItem, '/AddItem')
api.add_resource(GetAllItems, '/GetAllItems')

if __name__ == '__main__':
app.run(debug=True)


It throws with an error "connection object is not callable" .
I have searched all possible questions here in @stackoverflow posted before but unable to find the solution for the same.. If anyone has the solution please do help me over it.
Thank you .

Note: now this code is working... Thank you

Answer

Replace

conn = mysql.connect()
cursor = conn.cursor()

with

conn = mysql.connection
cursor = conn.cursor()

Read more at the Flask-MySQLdb’s docs.