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frontend.py
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from tkinter import *
import backend
def clear_list():
list1.delete(0, END)
def fill_list(books):
for book in books:
list1.insert(END, book)
window = Tk()
window.title('Book Management')
window.geometry('610x270')
window.resizable(False,False)
# Labels
l1 = Label(window, text='Title')
l1.grid(row=0, column=0)
l2 = Label(window, text='Author')
l2.grid(row=0, column=2)
l3 = Label(window, text='Year')
l3.grid(row=1, column=0)
l4 = Label(window, text='ISBN')
l4.grid(row=1, column=2)
# Entries
title_text = StringVar()
e1 = Entry(window, textvariable=title_text)
e1.grid(row=0, column=1)
author_text = StringVar()
e2 = Entry(window, textvariable=author_text)
e2.grid(row=0, column=3)
year_text = StringVar()
e3 = Entry(window, textvariable=year_text)
e3.grid(row=1, column=1)
isbn_text = StringVar()
e4 = Entry(window, textvariable=isbn_text)
e4.grid(row=1, column=3)
# List Box and Scroll Bar
list1 = Listbox(window, width=35, height=6)
list1.grid(row=2, column=0, rowspan=6, columnspan=2, padx=8)
sb1 = Scrollbar(window)
sb1.grid(row=2, column=2, rowspan=6)
list1.configure(yscrollcommand=sb1.set)
sb1.configure(command=list1.yview)
def get_selected_row(event):
global selected_book
if len(list1.curselection()) > 0:
index = list1.curselection()[0]
selected_book = list1.get(index)
# title
e1.delete(0, END)
e1.insert(END, selected_book[1])
# author
e2.delete(0, END)
e2.insert(END, selected_book[2])
# year
e3.delete(0, END)
e3.insert(END, selected_book[3])
# isbn
e4.delete(0, END)
e4.insert(END, selected_book[4])
list1.bind('<<ListboxSelect>>', get_selected_row)
# Buttons
def view_command():
clear_list()
books = backend.view()
fill_list(books)
b1 = Button(window, text='View All', width=12, command=view_command)
b1.grid(row=2, column=3)
def search_command():
clear_list()
books = backend.search(title_text.get(), author_text.get(), year_text.get(), isbn_text.get())
fill_list(books)
b2 = Button(window, text='Search', width=12, command=search_command)
b2.grid(row=3, column=3)
def add_command():
backend.insert(title_text.get(), author_text.get(), year_text.get(), isbn_text.get())
view_command()
b3 = Button(window, text='Add Book', width=12, command=add_command)
b3.grid(row=4, column=3)
def update_command():
backend.update(selected_book[0], title_text.get(), author_text.get(), year_text.get(), isbn_text.get())
view_command()
b4 = Button(window, text='Update Selected', width=12, command=update_command)
b4.grid(row=5, column=3)
def delete_command():
backend.delete(selected_book[0])
view_command()
b5 = Button(window, text='Delete Selected', width=12, command=delete_command)
b5.grid(row=6, column=3)
def clear_command():
e1.delete(0, END)
e2.delete(0, END)
e3.delete(0, END)
e4.delete(0, END)
b6 = Button(window, text='Clear', width=12, command=clear_command)
b6.grid(row=7, column=3)
b7 = Button(window, text='Close', width=12, command=window.destroy)
b7.grid(row=8, column=3)
view_command()
window.mainloop()