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DatabaseConnection.py
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DatabaseConnection.py
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'''
in this file we have maanged all the functionality related to the databases
'''
import mysql.connector
from mysql.connector import Error
def connect():
""" Connect to MySQL database """
try:
conn = mysql.connector.connect(host='localhost',
database='zomato_data',
user='root',
password='makeitlarge')
if conn.is_connected():
return conn
except Error as e:
print(e)
def insert(id, rating_text, sentiment, user, user_url, rating):
try :
conn = connect()
cursor = conn.cursor()
query = "INSERT INTO review_data VALUES(%s, %s, %s, %s, %s, %s)"
cursor.execute(query, (id, rating, rating_text, sentiment[:499], user, user_url[:99]))
conn.commit()
except Error as error :
print "error in insert" + str(error)
finally:
cursor.close()
conn.close()
def find(id) :
try :
conn = connect()
cursor = conn.cursor()
query = "SELECT * FROM review_data WHERE review_id = %s"
# args = id
cursor.execute(query, (id,))
row = cursor.fetchone()
if row is None :
return True
else:
return False
except Error as error :
print "error in finding" + str(error)
finally:
cursor.close()
conn.close()
def delete():
try :
conn = connect()
cursor = conn.cursor()
query = "DELETE FROM review_data"
cursor.execute(query)
except Error as error :
print "error in deleting"
finally:
cursor.close()
conn.close()