So I want to make a simple inventory system CRUD program. So far, I have been able to make it able to add new items, modify them and delete them. I'm lacking one last thing and that is to be able to search from a treeview which shows all of the items from the sqlite3 database. I wish to have a search box where i could just type in the name of the item and the program will print and select the items searched, which then i could do things such as modify or delete the selected items.
So far my code is:
from tkinter import Tk, Button, PhotoImage, Label, LabelFrame, W, E, N, S, Entry, END, StringVar, Scrollbar, Toplevel
from tkinter import ttk
import sqlite3
class Inventory:
db_filename = 'stock.db'
def __init__(self, root):
self.root = root
self.create_gui()
ttk.style = ttk.Style()
ttk.style.configure('Treeview', font=('helvetica',10))
ttk.style.configure('Treeview.Heading', font=('helvetica', 12, 'bold'))
def execute_db_query(self, query, parameters=()):
with sqlite3.connect(self.db_filename) as conn:
print(conn)
print('You have successfully connected to the Database')
cursor = conn.cursor()
query_result = cursor.execute(query, parameters)
conn.commit()
return query_result
def create_gui(self):
self.create_left_icon()
self.create_label_frame()
self.create_message_area()
self.create_tree_view()
self.create_scrollbar()
self.create_bottom_buttons()
self.view_items()
def create_left_icon(self):
photo = PhotoImage(file='./icons/logo.png')
label = Label(image=photo)
label.image = photo
label.grid(row=0, column=0)
def create_label_frame(self):
labelframe = LabelFrame(self.root, text='Input New Items', bg='sky blue', font='helvetica 10')
labelframe.grid(row=0, column=1, padx=8, pady=8, sticky='ew')
Label(labelframe, text='Name of Item:', bg='sky blue', fg='black').grid(row=1, column=1, sticky=W, pady=2, padx=15)
self.typefield = Entry(labelframe)
self.typefield.grid(row=1, column=2, sticky=W, padx=5, pady=2)
Label(labelframe, text='Stock Card ID:', bg='sky blue', fg='black').grid(row=2, column=1, sticky=W, pady=2, padx=15)
self.cardfield = Entry(labelframe)
self.cardfield.grid(row=2, column=2, sticky=W, padx=5, pady=2)
Label(labelframe, text='Count:', bg='sky blue', fg='black').grid(row=3, column=1, sticky=W, pady=2, padx=15)
self.countfield = Entry(labelframe)
self.countfield.grid(row=3, column=2, sticky=W, padx=5, pady=2)
Button(labelframe, text='Add', command=self.on_add_item_button_clicked, fg='black').grid(row=4, column=2, sticky=E, padx=5, pady=5)
def create_message_area(self):
self.message = Label(text='', fg='red')
self.message.grid(row=3, column=1, sticky=W)
def create_tree_view(self):
self.tree = ttk.Treeview(height=10, columns=('card', 'stock'), style='Treeview')
self.tree.grid(row=6, column=0, columnspan=3)
self.tree.heading('#0', text='Name of Item', anchor=W)
self.tree.heading('card', text='Stock Card ID', anchor=W)
self.tree.heading('stock', text='Count', anchor=W)
def create_scrollbar(self):
self.scrollbar = Scrollbar(orient='vertical', command=self.tree.yview)
self.scrollbar.grid(row=6, column=3, rowspan=10, sticky='sn')
def create_bottom_buttons(self):
Button(text='Delete', command=self.on_delete_selected_button_clicked).grid(row=8, column=0, sticky=W, pady=10, padx=20)
Button(text='Edit Stock', command=self.on_modify_selected_button_clicked).grid(row=8, column=1, sticky=W)
def on_add_item_button_clicked(self):
self.add_new_item()
def on_delete_selected_button_clicked(self):
self.message['text'] = ''
try:
self.tree.item(self.tree.selection())['values'][0]
except IndexError as e:
self.message['text'] = 'Select at least one item to be deleted'
return
self.delete_items()
def on_modify_selected_button_clicked(self):
self.message['text'] = ''
try:
self.tree.item(self.tree.selection())['values'][0]
except:
self.message['text'] = 'Select at least one item to be modified'
return
self.open_modify_window()
def add_new_item(self):
if self.new_items_validated():
query = 'INSERT INTO items_list VALUES(NULL, ?, ?, ?)'
parameters = (self.typefield.get(), self.cardfield.get(), self.countfield.get())
self.execute_db_query(query, parameters)
self.message['text'] = '{} has been added'.format(self.typefield.get())
self.typefield.delete(0, END)
self.cardfield.delete(0, END)
self.countfield.delete(0, END)
self.view_items()
else:
self.message['text'] = 'All entry field must be filled'
self.view_items()
def new_items_validated(self):
return len(self.typefield.get()) !=0 and len(self.cardfield.get()) != 0 and len(self.countfield.get()) != 0
def view_items(self):
items = self.tree.get_children()
for item in items:
self.tree.delete(item)
query = 'SELECT * FROM items_list ORDER BY TipeBarang'
item_entries = self.execute_db_query(query)
for row in item_entries:
self.tree.insert('', 0, text=row[1], values=(row[2], row[3]))
def delete_items(self):
self.message['text']=''
name = self.tree.item(self.tree.selection())['text']
query = 'DELETE FROM items_list WHERE TipeBarang = ?'
self.execute_db_query(query, (name,))
self.message['text'] = '{} has been deleted'.format(name)
self.view_items()
def open_modify_window(self):
name = self.tree.item(self.tree.selection())['text']
old_stock = self.tree.item(self.tree.selection())['values'][1]
self.transient = Toplevel()
self.transient.title('Update Stock')
Label(self.transient, text='Name: ').grid(row=0, column=1)
Entry(self.transient, textvariable=StringVar(
self.transient, value=name), state='readonly').grid(row=0, column=2)
Label(self.transient, text='Old Stock Count: ').grid(row=1, column=1)
Entry(self.transient, textvariable=StringVar(
self.transient, value=old_stock), state='readonly').grid(row=1, column=2)
Label(self.transient, text='New Stock Count: ').grid(row=2, column=1)
new_stock_number_entry_widget = Entry(self.transient)
new_stock_number_entry_widget.grid(row=2, column=2)
Button(self.transient, text='Update Item', command=lambda: self.update_stock(
new_stock_number_entry_widget.get(), old_stock, name)).grid(row=3, column=2, sticky=E)
self.transient.mainloop()
def update_stock(self, newstock, old_stock, name):
query = 'UPDATE items_list SET JumlahStok=? WHERE JumlahStok=? AND TipeBarang=?'
parameters = (newstock, old_stock, name)
self.execute_db_query(query, parameters)
self.transient.destroy()
self.message['text'] = '{} Stock Count has been updated'.format(name)
self.view_items()
if __name__ == "__main__":
root = Tk()
root.title("Inventory System")
root.resizable(width=False, height=False)
application = Inventory(root)
root.mainloop()
Below, I have also attached a screenshot of the program I have made so far. Thank you so much for your help.
Program Screenshot: https://i.stack.imgur.com/1kJch.png
There are a few different ways a search feature can be done here. You can add a search button that creates a Toplevel window and add widgets to it as needed. Or more simply, you can use simpledialog to get text input from the user like so:
queryString = simpledialog.askstring("Search", "Enter item name to search:")
Then pass the resulting queryString to a database function, sanitize it to prevent SQL injection, and SELECT * FROM table WHERE Item = 'queryString'
Then use the data returned from this query to populate your treeview.
def Search():
if SEARCH.get() != "":
tree.delete(*tree.get_children())
conn = sqlite3.connect("db_member.db")
cursor = conn.cursor()
cursor.execute("SELECT * FROM `member` WHERE `firstname` LIKE ? OR `lastname` LIKE ?", ('%'+str(SEARCH.get())+'%', '%'+str(SEARCH.get())+'%'))
fetch = cursor.fetchall()
for data in fetch:
tree.insert('', 'end', values=(data))
cursor.close()
conn.close()
this how you can search from Specific Column in Python with Sqlite3 and Tkinter, you have just to change tow things:
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