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Userlogin.py
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Userlogin.py
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import sqlite3
from tkinter import *
from tkinter import messagebox
from PIL import Image, ImageTk
# LOGIN CLASS
class Login:
def __init__(self):
self.loginw = Tk()
self.loginw.title("Login")
width = 450
height = 600
screen_width = self.loginw.winfo_screenwidth()
screen_height = self.loginw.winfo_screenheight()
x = (screen_width / 2) - (width / 2)
y = (screen_height / 2) - (height / 2)
self.loginw.geometry("%dx%d+%d+%d" % (width, height, x, y))
self.loginw.resizable(0, 0)
self.loginw.protocol('WM_DELETE_WINDOW', self.__login_del__)
self.loginw.config(bg="#4267b2")
image = Image.open("images/purple-gradient.png")
resize_image = image.resize((450, 600))
self.img = ImageTk.PhotoImage(resize_image)
self.bgimage = Label(
self.loginw,
image=self.img
)
self.bgimage.place(x=-2, y=-2)
self.logintable()
self.username = StringVar(value="Username")
self.password = StringVar(value="Password")
self.obj()
def __login_del__(self):
if messagebox.askyesno("Quit", " Leave application?"):
self.loginw.destroy()
exit(0) # FORCE SYSTEM TO EXIT
# LOGIN TABLE
def logintable(self):
self.base = sqlite3.connect("login.db")
self.cur = self.base.cursor()
self.cur.execute(
"CREATE TABLE if not exists users (name varchar (20), phone_no number, gender varchar(10), username varchar (20),password varchar (20) NOT NULL,account_type varchar ( 10 ) NOT NULL,PRIMARY KEY(username));")
# WIDGET FUNCTION
def obj(self):
self.loginframe = Canvas(self.loginw, bg="#f2f2f2", height=400, width=300, highlightthickness=2)
self.loginw.bind('<Return>', self.checkuser)
self.loginframe.place(x=85, y=95)
self.toplabel = Label(self.loginframe, fg="black", bg="#f2f2f2", anchor="center", text="Login",
font="Montserrat 30 normal")
self.toplabel.place(x=95, y=30)
self.us = Entry(self.loginframe, width=20, bg="#ffffff", textvariable=self.username, border=0, justify='center',
font="Roboto 14 ")
self.us.place(x=35, y=145, height=40)
self.pa = Entry(self.loginframe, width=20, bg="#ffffff", textvariable=self.password, border=0, justify='center',
font="Roboto 14 ")
self.pa.place(x=35, y=190, height=40)
self.us.bind('<Button-1>', self.onclick)
self.pa.bind('<Button-1>', self.onclick1)
self.signin = Button(self.loginframe, width=20, text="Sign in", bg="#9933ff", fg="white",
command=self.checkuser,
font="Roboto 14")
self.signin.place(x=35, y=290)
# CHECK USER IN DATABASE
def checkuser(self, event=0):
s = self.username.get()
s1 = self.password.get()
s = s.upper()
s1 = s1.upper()
self.cur.execute("select * from users where username=? and password=? ", (s, s1))
list_ = self.cur.fetchall()
if len(list_) > 0:
self.success()
else:
self.fail()
# LOGIN SUCCESS
def success(self):
# messagebox.showinfo("Success","Login successful")
self.loginw.quit()
# LOGIN FAILURE
def fail(self):
messagebox.showerror("Error", "The username or password is incorrect")
# USER REGISTRATION && LOGIN->REGISTER
def reguser(self):
self.toplabel.config(text="Register")
self.toplabel.place(x=40, y=25)
self.username.set("Choose your username")
self.password.set("Create a password")
self.signin.config(text="Ok", command=self.insert)
# ADD
self.register = Button(self.loginframe, width=20, text="Back", bg="#9933ff", fg="white",
command=self.revert, font="Roboto 14")
self.register.place(x=35, y=320)
# self.register.config(text="Back",command=self.revert)
self.signin.config()
self.signin.place(x=35, y=260)
self.pa.config(show='')
self.loginw.focus()
self.loginw.bind('<Return>', self.insert)
self.loginw.title('Register')
# REGISTER USER TO DATABASE
def insert(self, event=0):
s = self.username.get()
s1 = self.password.get()
s = s.upper()
s1 = s1.upper()
self.cur.execute("select username from users where username = ?", (s,))
list_ = self.cur.fetchall()
if len(list_) > 0:
messagebox.showerror("Error", "Username already exist")
self.username.set('Choose your username')
self.loginw.focus()
return
if (len(s) == 0 or len(s1) == 0 or len(s) > 20 or len(
s1) > 20 or s1 == "CREATE A PASSWORD" or s == 'CHOOSE YOUR USERNAME'):
messagebox.showerror("Error", "Invalid username or password")
self.username.set('Choose your username')
self.password.set('Create a password')
self.pa.config(show='')
self.loginw.focus()
return
else:
self.cur.execute("insert into users values(?,?,?)", (s, s1, 'USER'))
messagebox.showinfo("Success", "User registered")
self.base.commit()
self.revert()
# ADD
self.loginw.state('withdraw')
self.tree.delete(*self.tree.get_children())
self.getusers()
# REGISTER->LOGIN
def revert(self):
self.toplabel.config(text="Login")
self.toplabel.place(x=75, y=25)
self.signin.config(text="Sign in", command=self.checkuser)
self.register.config(text="Register", command=self.reguser)
self.username.set('Username')
self.password.set('Password')
self.pa.config(show='')
self.signin.config(state=NORMAL)
self.loginw.focus()
self.loginw.bind('<Return>', self.checkuser)
# ADD
self.signin.place(x=35, y=290)
self.loginw.title('Login')
self.loginw.state('withdraw')
# ONCLICK EVENTS
def onclick(self, event):
if self.username.get() == "Username" or self.username.get() == "Choose your username":
self.us.delete(0, "end")
def onclick1(self, event):
if self.password.get() == "Password" or self.password.get() == "Create a password":
self.pa.delete(0, "end")
self.pa.config(show="*")
'''
#TEST LOGIN
w=login()
w.base.commit()
w.loginw.mainloop()
'''