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‎Creating_Database(Room_Managment_System).py‎

Lines changed: 240 additions & 69 deletions
Original file line numberDiff line numberDiff line change
@@ -1,75 +1,246 @@
11
import mysql.connector as sql
2-
con=sql.connect(host='localhost', user=input("Enter your account name:"), passwd=input('Enter your password:'), auth_plugin='mysql_native_password')
3-
cursor_var=con.cursor()
4-
5-
def database_creation():
6-
"""
7-
Creating database using and tables (CHECK_IN and CHECK_OUT).
8-
"""
9-
create='CREATE DATABASE ROOM_MANAGEMENT_SYSTEM'
10-
cursor_var.execute(create)
11-
print("DATABASE CREATED SUCCESSFULLY!!!")
12-
13-
use='USE ROOM_MANAGEMENT_SYSTEM'
14-
cursor_var.execute(use)
15-
create_checkin='CREATE TABLE CHECK_IN(ROOM_TYPE VARCHAR(20), NO_OF_DAYS INT, NAME VARCHAR(20), AADHAAR_CARD_NO VARCHAR(12), MOBILE_NO VARCHAR(13), DATE VARCHAR(20), ROOM_NO INT)'
16-
cursor_var.execute(create_checkin)
17-
print("CHECK_IN TABLE CREATED SUCCESSFULLY!!!")
18-
19-
create_checkout='CREATE TABLE CHECK_OUT(ROOM_TYPE VARCHAR(30), ROOM_NO INT, NAME VARCHAR(20), MOBILE_NO VARCHAR(13), AADHAAR_CARD_NO VARCHAR(12), NO_OF_DAYS INT, TOTAL_BILL FLOAT, DATE_OF_BILLING VARCHAR(20))'
20-
cursor_var.execute(create_checkout)
21-
print("CHECK_OUT TABLE CREATED SUCCESSFULLY!!!")
22-
23-
con.commit()
24-
main()
25-
26-
def database_deletion():
27-
28-
"""
29-
Deleting database.
30-
"""
31-
print(" ")
32-
print("Press 1 for to delete entire database.")
33-
print("Press 2 to delete tables in database.")
34-
print(" ")
35-
36-
user_choice=int(input("Enter your choice:"))
37-
if user_choice==1:
38-
drop_database='DROP DATABASE ROOM_MANAGEMENT_SYSTEM'
39-
cursor_var.execute(drop_database)
40-
print("DATABASE deleted successfully!!!")
41-
2+
from mysql.connector import Error
3+
4+
try:
5+
username = input("Enter your username:")
6+
password = input("Enter your password:")
7+
con = sql.connect(host = "localhost", user = username, passwd = password, auth_plugin = "mysql_native_password")
8+
9+
if con.is_connected():
10+
print("Connection successful!")
11+
cursor_var = con.cursor()
12+
except Error as e:
13+
print(f'Connection failed to MySQL, error:{e}')
14+
15+
16+
class DataBaseCreation:
17+
'''Creating the database, Room Management System'''
18+
def __init__(self, connection):
19+
self.connection = connection
20+
self.cursor = self.connection.cursor()
21+
22+
def database_create(self):
23+
try:
24+
create = "CREATE DATABASE IF NOT EXISTS ROOM_MANAGEMENT_SYSTEM"
25+
self.cursor.execute(create)
26+
self.connection.commit()
27+
print("Database created or already exists.")
28+
except Error as e:
29+
print(f"Unable to create Database, error: {e}")
30+
31+
def UseDatabase(self):
32+
try:
33+
database = "USE ROOM_MANAGEMENT_SYSTEM"
34+
self.cursor.execute(database)
35+
self.connection.commit()
36+
except Error as e:
37+
print(f"Error: {e}")
38+
39+
def CreateTable(self):
40+
try:
41+
create_checkin = '''
42+
CREATE TABLE IF NOT EXISTS CHECK_IN (
43+
ROOM_TYPE VARCHAR(20),
44+
NO_OF_DAYS INT,
45+
NAME VARCHAR(20),
46+
AADHAAR_CARD_NO VARCHAR(12),
47+
MOBILE_NO VARCHAR(13),
48+
DATE VARCHAR(20),
49+
ROOM_NO INT
50+
)
51+
'''
52+
self.cursor.execute(create_checkin)
53+
54+
create_checkout = '''
55+
CREATE TABLE IF NOT EXISTS CHECK_OUT (
56+
ROOM_TYPE VARCHAR(30),
57+
ROOM_NO INT,
58+
NAME VARCHAR(20),
59+
MOBILE_NO VARCHAR(13),
60+
AADHAAR_CARD_NO VARCHAR(12),
61+
NO_OF_DAYS INT,
62+
TOTAL_BILL FLOAT,
63+
DATE_OF_BILLING VARCHAR(20)
64+
)
65+
'''
66+
self.cursor.execute(create_checkout)
67+
68+
self.connection.commit()
69+
print("Both tables created (if not already existing).")
70+
except Error as e:
71+
print(f"Error: {e}")
72+
73+
74+
class DataBaseDeletion:
75+
'''Deleting database, Room Management System'''
76+
def __init__(self, connection):
77+
self.connection = connection
78+
self.cursor = self.connection.cursor()
79+
80+
def perform_deletion(self):
81+
print("\nPress 1 to delete entire database.")
82+
print("Press 2 to delete tables in database.\n")
83+
user_choice = int(input("Enter your choice: "))
84+
85+
if user_choice == 1:
86+
try:
87+
self.cursor.execute("DROP DATABASE IF EXISTS ROOM_MANAGEMENT_SYSTEM")
88+
print("DATABASE deleted successfully!")
89+
except Error as e:
90+
print(f"Error: {e}")
4291
elif user_choice == 2:
43-
print(" ")
44-
print("Press 1 to delete both tables.")
92+
self.cursor.execute("USE ROOM_MANAGEMENT_SYSTEM")
93+
print("\nPress 1 to delete both tables.")
4594
print("Press 2 to delete CHECK_IN table only.")
46-
print("Press 3 to delete CHECK_OUT table only.")
47-
print(" ")
48-
user_choice_table = int(input("Enter your choice:"))
49-
50-
if user_choice_table == 1:
51-
cursor_var.execute("DROP TABLE IF EXISTS CHECK_IN")
52-
cursor_var.execute("DROP TABLE IF EXISTS CHECK_OUT")
53-
print("Both tables deleted successfully")
54-
elif user_choice_table == 2:
55-
cursor_var.execute("DROP TABLE IF EXISTS CHECK_IN")
56-
print("CHECK_IN table deleted successfully")
57-
elif user_choice_table == 3:
58-
cursor_var.execute("DROP TABLE IF EXISTS CHECK_OUT")
59-
print("CHECK_OUT table deleted successfully")
60-
61-
con.commit()
62-
main()
95+
print("Press 3 to delete CHECK_OUT table only.\n")
96+
user_choice_table = int(input("Enter your choice: "))
97+
try:
98+
if user_choice_table == 1:
99+
self.cursor.execute("DROP TABLE IF EXISTS CHECK_IN")
100+
self.cursor.execute("DROP TABLE IF EXISTS CHECK_OUT")
101+
print("Both tables deleted successfully.")
102+
elif user_choice_table == 2:
103+
self.cursor.execute("DROP TABLE IF EXISTS CHECK_IN")
104+
print("CHECK_IN table deleted successfully.")
105+
elif user_choice_table == 3:
106+
self.cursor.execute("DROP TABLE IF EXISTS CHECK_OUT")
107+
print("CHECK_OUT table deleted successfully.")
108+
else:
109+
print("Invalid choice.")
110+
self.connection.commit()
111+
except Error as e:
112+
print(f"Error: {e}")
113+
114+
115+
class ColumnModification:
116+
'''Help to modify the columns'''
117+
def __init__(self, connection):
118+
self.connection = connection
119+
self.cursor = self.connection.cursor()
120+
121+
def modify_column(self):
122+
self.cursor.execute("USE ROOM_MANAGEMENT_SYSTEM")
123+
print("\nPress 1 to ADD column.")
124+
print("Press 2 to DELETE column.\n")
125+
try:
126+
choice = int(input("Enter your choice: "))
127+
table = input("Enter table name (CHECK_IN/CHECK_OUT): ").upper()
128+
column_name = input("Enter column name: ")
129+
130+
if choice == 1:
131+
column_type = input("Enter column type (e.g. VARCHAR(20), INT): ")
132+
query = f"ALTER TABLE {table} ADD COLUMN {column_name} {column_type}"
133+
self.cursor.execute(query)
134+
print("Column added successfully.")
135+
elif choice == 2:
136+
query = f"ALTER TABLE {table} DROP COLUMN {column_name}"
137+
self.cursor.execute(query)
138+
print("Column deleted successfully.")
139+
else:
140+
print("Invalid option.")
141+
self.connection.commit()
142+
except Error as e:
143+
print(f"Error: {e}")
144+
except Exception as ex:
145+
print(f"Invalid input: {ex}")
146+
147+
148+
class IndividualTableCreation:
149+
'''Can create individual tables also'''
150+
def __init__(self, connection):
151+
self.connection = connection
152+
self.cursor = self.connection.cursor()
153+
154+
def create_checkin_table(self):
155+
try:
156+
self.cursor.execute('''
157+
CREATE TABLE IF NOT EXISTS CHECK_IN (
158+
ROOM_TYPE VARCHAR(20),
159+
NO_OF_DAYS INT,
160+
NAME VARCHAR(20),
161+
AADHAAR_CARD_NO VARCHAR(12),
162+
MOBILE_NO VARCHAR(13),
163+
DATE VARCHAR(20),
164+
ROOM_NO INT
165+
)
166+
''')
167+
self.connection.commit()
168+
print("CHECK_IN table created successfully.")
169+
except Error as e:
170+
print(f"Error creating CHECK_IN table: {e}")
171+
172+
def create_checkout_table(self):
173+
try:
174+
self.cursor.execute('''
175+
CREATE TABLE IF NOT EXISTS CHECK_OUT (
176+
ROOM_TYPE VARCHAR(30),
177+
ROOM_NO INT,
178+
NAME VARCHAR(20),
179+
MOBILE_NO VARCHAR(13),
180+
AADHAAR_CARD_NO VARCHAR(12),
181+
NO_OF_DAYS INT,
182+
TOTAL_BILL FLOAT,
183+
DATE_OF_BILLING VARCHAR(20)
184+
)
185+
''')
186+
self.connection.commit()
187+
print("CHECK_OUT table created successfully.")
188+
except Error as e:
189+
print(f"Error creating CHECK_OUT table: {e}")
190+
191+
def perform_table_creation(self):
192+
self.cursor.execute("USE ROOM_MANAGEMENT_SYSTEM")
193+
print("\nPress 1 to create CHECK_IN table.")
194+
print("Press 2 to create CHECK_OUT table.")
195+
print("Press 3 to create both tables.\n")
196+
try:
197+
user_choice = int(input("Enter your choice: "))
198+
if user_choice == 1:
199+
self.create_checkin_table()
200+
elif user_choice == 2:
201+
self.create_checkout_table()
202+
elif user_choice == 3:
203+
self.create_checkin_table()
204+
self.create_checkout_table()
205+
else:
206+
print("Invalid choice.")
207+
except Exception as e:
208+
print(f"Error: {e}")
209+
63210

64211
def main():
65-
print("Enter 1 to create database 'ROOM_MANAGEMENT_SYSTEM'")
66-
print("Enter 2 to drop database/table from 'ROOM_MANAGEMENT_SYSTEM'")
67-
user_choice=int(input("Enter your choice:"))
68-
if user_choice==1:
69-
database_creation()
70-
elif user_choice==2:
71-
database_deletion()
212+
print("\n==== ROOM MANAGEMENT SYSTEM ====")
213+
print("1. Create database and both tables")
214+
print("2. Drop database or specific tables")
215+
print("3. Add/Delete column from table")
216+
print("4. Create individual tables (if not exist)")
217+
print("0. Exit")
218+
219+
try:
220+
user_choice = int(input("Enter your choice: "))
221+
if user_choice == 1:
222+
db = DataBaseCreation(con)
223+
db.database_create()
224+
db.UseDatabase()
225+
db.CreateTable()
226+
elif user_choice == 2:
227+
deleter = DataBaseDeletion(con)
228+
deleter.perform_deletion()
229+
elif user_choice == 3:
230+
modifier = ColumnModification(con)
231+
modifier.modify_column()
232+
elif user_choice == 4:
233+
creator = IndividualTableCreation(con)
234+
creator.perform_table_creation()
235+
elif user_choice == 0:
236+
print("Exiting program.")
237+
return
72238
else:
73-
print("Wrong input...")
74-
main()
75-
main()
239+
print("Invalid input.")
240+
except Exception as e:
241+
print(f"Error in main menu: {e}")
242+
243+
main() # Recursive loop
244+
245+
if __name__ == "__main__":
246+
main()

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