[英]tkinter searchbox for treeview python sqlite3
So I want to make a simple inventory system CRUD program.所以我想做一个简单的库存系统CRUD程序。 So far, I have been able to make it able to add new items, modify them and delete them.
到目前为止,我已经能够让它能够添加、修改和删除它们。 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.
我还缺少最后一件事,那就是能够从 treeview 中搜索,它显示了 sqlite3 数据库中的所有项目。 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.
我希望有一个搜索框,我可以在其中输入项目的名称,程序将打印 select 搜索的项目,然后我可以执行诸如修改或删除所选项目之类的操作。
So far my code is:到目前为止,我的代码是:
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.下面,我还附上了我迄今为止制作的程序的截图。 Thank you so much for your help.
非常感谢你的帮助。
Program Screenshot: https://i.stack.imgur.com/1kJch.png程序截图: https://i.stack.imgur.com/1kJch.png
There are a few different ways a search feature can be done here.有几种不同的方式可以在这里完成搜索功能。 You can add a search button that creates a Toplevel window and add widgets to it as needed.
您可以添加创建顶级 window的搜索按钮,并根据需要向其中添加小部件。 Or more simply, you can use simpledialog to get text input from the user like so:
或者更简单地说,您可以使用simpledialog从用户那里获取文本输入,如下所示:
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'
然后将生成的 queryString 传递给数据库 function,对其进行清理以防止 SQL 注入和
SELECT * FROM table WHERE Item = 'queryString'
Then use the data returned from this query to populate your treeview.然后使用从此查询返回的数据填充 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:这是您如何使用 Sqlite3 和 Tkinter 从 Python 中的特定列中搜索的方法,您只需更改两件事:
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