如何保存我在 tkinter canvas IN sqlite3 数据库中制作的绘图，然后再次在画布上获取它
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【中文标题】如何保存我在 tkinter canvas IN sqlite3 数据库中制作的绘图，然后再次在画布上获取它【英文标题】：how to save a drawing which i have made in tkinter canvas IN sqlite3 database and then again fetch it on canvas 【发布时间】：2022-01-15 00:51:37 【问题描述】：con = sqlite3.connect("new1.db")
con.execute(""" CREATE TABLE IF NOT EXISTS customer_jj(
id INTEGER PRIMARY KEY AUTOINCREMENT,
name VARCHAR,
phone INTEGER,
l VARCHAR,
ch VARCHAR,
s VARCHAR,
t VARCHAR,
n VARCHAR,
w VARCHAR,
l1 VARCHAR,
w1 VARCHAR,
h VARCHAR,
l2 VARCHAR,
m VARCHAR,
g VARCHAR,
o1 VARCHAR,
o2 VARCHAR,
o3 VARCHAR,
o4 VARCHAR,
others VARCHAR,
del TIMESTAMP,
date TIMESTAMP)
""")
class Student:
def __init__(self, root):
self.root = root
self.root.title("King Tailors")
self.root.geometry("1350x700+0+0")
DEFAULT_PEN_SIZE = 5.0
DEFAULT_COLOR = 'black'
title = Label(self.root, text="King Tailors", bd=10, relief=GROOVE, font=("times new roman", 40, "bold"),
bg="white", fg="black", highlightbackground="gray", highlightthickness=4)
title.pack(side=TOP, fill=X)
self.date = StringVar()
self.format_date = StringVar()
self.id = StringVar()
self.customer_name = StringVar()
self.phone = StringVar()
self.del_date = StringVar()
self.l = StringVar()
self.ch = StringVar()
self.s = StringVar()
self.t = StringVar()
self.n = StringVar()
self.w = StringVar()
self.l1 = StringVar()
self.w1 = StringVar()
self.h = StringVar()
self.l2 = StringVar()
self.m = StringVar()
self.g = StringVar()
self.o = StringVar()
self.o1 = StringVar()
self.o2 = StringVar()
self.o3 = StringVar()
self.o4 = StringVar()
self.txt_date = StringVar()
self.search_by = StringVar()
self.search_text = StringVar()
manage_frame1 = Frame(self.root, bd=4, relief=GROOVE, highlightbackground="gray", highlightthickness=1)
detail_frame = Frame(self.root, bd=2, relief=SUNKEN, highlightbackground="gray", highlightthickness=1)
manage_frame1.place(x=10, y=100, width=690, height=590)
detail_frame.place(x=700, y=100, width=620, height=590)
date1 = dt.datetime.now()
format_date = f"date1: %b %d %y"
lbl_date = Label(manage_frame1, text="Date", font=("times new roman", 15, "bold"), bg="white", fg="black")
lbl_date.grid(row=0, column=0, pady=5, padx=5, sticky="w")
self.pen_button = Button(manage_frame1, text='pen', command=self.use_pen,width=5)
self.pen_button.place(x=250,y=450,width=80)
self.c = Canvas(manage_frame1, bg='white', width=200, height=130)
self.c.grid(row=14, column=0)
self.button3 = Button(manage_frame1, text="Done!", width=2, bg='white', command=self.save)
self.button3.place(x=250, y=540, width=80)
self.button1 = Button(manage_frame1, text="Clear!", width=2, bg='white', command=self.clear1)
self.button1.place(x=250,y=510,width=80)
self.eraser_button2 = Button(manage_frame1, text='eraser', command=self.use_eraser)
self.eraser_button2.place(x=250,y=480,width=80)
self.setup()
self.image = PIL.Image.new("RGB",(200,200),(255,255,255))
self.draw = ImageDraw.Draw(self.image)
self.choose_size_button = Scale(manage_frame1, from_=1, to=8, orient=HORIZONTAL)
self.choose_size_button.grid(row=13, column=1)
txt_date = Entry(manage_frame1, textvariable=self.date, font=("times new roman", 15, "bold"), bd=5,
relief=RAISED)
txt_date1 = DateEntry(manage_frame1, textvariable=self.del_date, selectmode='day', width=18)
txt_date1.grid(row=1, column=1, pady=5, padx=5, sticky="w")
lbl_date1 = Label(manage_frame1, text="Delivery Date", font=("times new roman", 15, "bold"), bg="white",
fg="black")
lbl_date1.grid(row=1, column=0, pady=5, padx=5, sticky="w")
txt_date = Entry(manage_frame1, textvariable=self.date, width=12, font=("times new roman", 15, "bold"), bd=5,
relief=RAISED)
txt_date.insert(END, format_date)
txt_date.grid(row=0, column=1, pady=5, padx=5, sticky="w")
lbl_roll = Label(manage_frame1, text="Customer Name", font=("times new roman", 15, "bold"), bg="white", bd=5,
fg="black")
lbl_roll.grid(row=2, column=0, pady=5, padx=5, sticky="w")
#
txt_roll = Entry(manage_frame1, textvariable=self.customer_name, width=15, font=("times new roman", 15, "bold"),
bd=5,
relief=RAISED)
txt_roll.grid(row=2, column=1, pady=5, padx=5, sticky="w")
lbl_age = Label(manage_frame1, text="Phone No", font=("times new roman", 15, "bold"), bg="white", fg="black")
lbl_age.grid(row=3, column=0, pady=5, padx=5, sticky="w")
txt_age = Entry(manage_frame1, textvariable=self.phone, width=15, font=("times new roman", 15, "bold"), bd=5,
relief=RAISED)
txt_age.grid(row=3, column=1, pady=5, padx=5, sticky="w")
lbl_add = Label(manage_frame1, text="S. L", font=("times new roman", 15, "bold"), bg="white", fg="black")
lbl_add.grid(row=8, column=0, pady=5, padx=5, sticky="w")
txt_add = Entry(manage_frame1, textvariable=self.l, width=5, font=("times new roman", 15, "bold"), bd=5,
relief=RAISED)
txt_add.grid(row=8, column=0, pady=5, padx=5, sticky="e")
lbl_addd = Label(manage_frame1, text="P. L", font=("times new roman", 15, "bold"), bg="white", fg="black")
lbl_addd.grid(row=8, column=1, pady=5, padx=5, sticky="e")
txt_addd = Entry(manage_frame1, textvariable=self.l1, width=5, font=("times new roman", 15, "bold"), bd=5,
relief=RAISED)
txt_addd.grid(row=8, column=2, pady=5, padx=5, sticky="s")
lbl_add1 = Label(manage_frame1, text="S. CH", font=("times new roman", 15, "bold"), bg="white", fg="black")
lbl_add1.grid(row=10, column=0, pady=5, padx=5, sticky="w")
txt_add1 = Entry(manage_frame1, textvariable=self.ch, width=5, font=("times new roman", 15, "bold"), bd=5,
relief=RAISED)
txt_add1.grid(row=10, column=0, pady=5, padx=5, sticky="e")
lbl_addp = Label(manage_frame1, text="P. W", font=("times new roman", 15, "bold"), bg="white", fg="black")
lbl_addp.grid(row=11, column=1, pady=5, padx=5, sticky="e")
txt_addp = Entry(manage_frame1, textvariable=self.w1, width=5, font=("times new roman", 15, "bold"), bd=5,
relief=RAISED)
txt_addp.grid(row=11, column=2, pady=5, padx=5, sticky="s")
lbl_add2 = Label(manage_frame1, text="S. S", font=("times new roman", 15, "bold"), bg="white", fg="black")
lbl_add2.grid(row=9, column=0, pady=5, padx=5, sticky="w")
#
txt_add2 = Entry(manage_frame1, textvariable=self.s, width=5, font=("times new roman", 15, "bold"), bd=5,
relief=RAISED)
txt_add2.grid(row=9, column=0, pady=5, padx=5, sticky="e")
lbl_add2p = Label(manage_frame1, text="P. H", font=("times new roman", 15, "bold"), bg="white", fg="black")
lbl_add2p.grid(row=9, column=1, pady=5, padx=5, sticky="e")
txt_add2p = Entry(manage_frame1, textvariable=self.h, width=5, font=("times new roman", 15, "bold"), bd=5,
relief=RAISED)
txt_add2p.grid(row=9, column=2, pady=5, padx=5, sticky="s")
lbl_add3 = Label(manage_frame1, text="S. T", font=("times new roman", 15, "bold"), bg="white", fg="black")
lbl_add3.grid(row=11, column=0, pady=5, padx=5, sticky="w")
txt_add3 = Entry(manage_frame1, textvariable=self.t, width=5, font=("times new roman", 15, "bold"), bd=5,
relief=RAISED)
txt_add3.grid(row=11, column=0, pady=5, padx=5, sticky="e")
lbl_add3p = Label(manage_frame1, text="P. L", font=("times new roman", 15, "bold"), bg="white", fg="black")
lbl_add3p.grid(row=10, column=1, pady=5, padx=5, sticky="e")
txt_add3p = Entry(manage_frame1, textvariable=self.l2, width=5, font=("times new roman", 15, "bold"), bd=5,
relief=RAISED)
txt_add3p.grid(row=10, column=2, pady=5, padx=5, sticky="s")
lbl_o1 = Label(manage_frame1, text="Shirt", font=("times new roman", 15, "bold"), bg="white", fg="black")
lbl_o1.grid(row=0, column=2, pady=5, padx=5, sticky="w")
txt_o1 = Entry(manage_frame1, textvariable=self.o1, width=5, font=("times new roman", 15, "bold"), bd=5,
relief=RAISED)
txt_o1.grid(row=0, column=3, pady=5, padx=5, sticky="w")
lbl_o2 = Label(manage_frame1, text="Pant", font=("times new roman", 15, "bold"), bg="white", fg="black")
lbl_o2.grid(row=0, column=4, pady=5, padx=5, sticky="n")
txt_o2 = Entry(manage_frame1, textvariable=self.o2, width=5, font=("times new roman", 15, "bold"), bd=5,
relief=RAISED)
txt_o2.grid(row=0, column=5, pady=5, padx=5, sticky="w")
lbl_o3 = Label(manage_frame1, text="Coat", font=("times new roman", 15, "bold"), bg="white", fg="black")
lbl_o3.grid(row=1, column=2, pady=5, padx=5, sticky="w")
txt_o3 = Entry(manage_frame1, textvariable=self.o3, width=5, font=("times new roman", 15, "bold"), bd=5,
relief=RAISED)
txt_o3.grid(row=1, column=3, pady=5, padx=5, sticky="w")
lbl_o3 = Label(manage_frame1, text="Kurta", font=("times new roman", 15, "bold"), bg="white", fg="black")
lbl_o3.grid(row=2, column=2, pady=5, padx=5, sticky="w")
txt_o3 = Entry(manage_frame1, textvariable=self.o4, width=5, font=("times new roman", 15, "bold"), bd=5,
relief=RAISED)
txt_o3.grid(row=2, column=3, pady=5, padx=5, sticky="w")
lbl_add4 = Label(manage_frame1, text="S. N", font=("times new roman", 15, "bold"), bg="white", fg="black")
lbl_add4.grid(row=9, column=0, pady=5, padx=5, sticky="w")
txt_add4 = Entry(manage_frame1, textvariable=self.n, width=5, font=("times new roman", 15, "bold"), bd=5,
relief=RAISED)
txt_add4.grid(row=9, column=0, pady=5, padx=5, sticky="e")
lbl_add4p = Label(manage_frame1, text="P. M", font=("times new roman", 15, "bold"), bg="white", fg="black")
lbl_add4p.grid(row=9, column=1, pady=5, padx=5, sticky="e")
txt_add4p = Entry(manage_frame1, textvariable=self.m, width=5, font=("times new roman", 15, "bold"), bd=5,
relief=RAISED)
txt_add4p.grid(row=9, column=2, pady=5, padx=5, sticky="s")
lbl_add5 = Label(manage_frame1, text="S. W", font=("times new roman", 15, "bold"), bg="white",
fg="black")
lbl_add5.grid(row=12, column=0, pady=5, padx=5, sticky="w")
txt_add5 = Entry(manage_frame1, textvariable=self.w, width=5, font=("times new roman", 15, "bold"), bd=5,
relief=RAISED)
txt_add5.grid(row=12, column=0, pady=5, padx=5, sticky="e")
lbl_add5p = Label(manage_frame1, text="P. G", font=("times new roman", 15, "bold"), bg="white",
fg="black")
lbl_add5p.grid(row=12, column=1, pady=5, padx=5, sticky="e")
txt_add5p = Entry(manage_frame1, textvariable=self.g, width=5, font=("times new roman", 15, "bold"), bd=5,
relief=RAISED)
txt_add5p.grid(row=12, column=2, pady=5, padx=5, sticky="s")
lbl_others = Label(manage_frame1, text="Others", font=("times new roman", 15, "bold"), bg="white",
fg="black")
lbl_others.grid(row=1, column=4, pady=5, padx=5, sticky="n")
txt_others = Entry(manage_frame1, textvariable=self.o, width=5, font=("times new roman", 15, "bold"), bd=5,
relief=RAISED)
txt_others.grid(row=1, column=5, pady=5, padx=5, sticky="w")
btn_frame = Frame(manage_frame1, bd=2, relief=RIDGE, bg="white", highlightbackground="gray",
highlightthickness=2)
btn_frame.place(x=360, y=470, width=320)
addbtn = Button(btn_frame, text="Add", width=8, command=self.add_customer).grid(row=0, column=0, padx=5)
updatebtn = Button(btn_frame, text="Update", width=8, command=self.update_data).grid(row=0, column=1, padx=5)
deletebtn = Button(btn_frame, text="Delete", width=8, command=self.delete_data).grid(row=0, column=2, padx=5)
clearbtn = Button(btn_frame, text="Clear", width=8, command=self.clear).grid(row=0, column=3, padx=5)
lbl_search = Label(detail_frame, text="Search By", bg="white", font=("times new roman", 15, "bold"), fg="black")
lbl_search.grid(row=0, column=0, pady=10, padx=10, sticky="w")
combo_search = ttk.Combobox(detail_frame, textvariable=self.search_by, width=6,
font=("times new roman", 13, "bold"), state="readonly")
combo_search['values'] = ("name", "phone", "id", "date")
combo_search.grid(row=0, column=1, padx=10, pady=10)
txt_search = Entry(detail_frame, textvariable=self.search_text, width=10, font=("times new roman", 10, "bold"),
bd=5, relief=GROOVE, highlightbackground="gray", highlightthickness=2)
txt_search.grid(row=0, column=2, pady=10, padx=10, sticky="w")
search_btn = Button(detail_frame, relief=GROOVE, command=self.search_data, text="Search", width=8, pady=5).grid(
row=0,
column=3,
padx=5)
show_all_btn = Button(detail_frame, relief=GROOVE, command=self.fetch_data, text="Show All", width=5,
pady=5).grid(row=0,
column=4,
padx=5)
rec_btn = Button(detail_frame, text="Save", relief=GROOVE, command=threading.Thread(target=self.save_data).start(), width=5, pady=4).grid(row=0,
column=6,
padx=5)
table_frame = Frame(detail_frame, bd=5, relief=GROOVE, bg="white")
table_frame.place(x=5, y=60, width=600, height=520)
rec_btn = Button(detail_frame, text="Receipt", command=self.rec, width=8, pady=5).grid(row=0, column=5, padx=5)
scroll_x = Scrollbar(table_frame, orient=HORIZONTAL)
scroll_y = Scrollbar(table_frame, orient=VERTICAL)
self.customer_table = ttk.Treeview(table_frame, columns=(
"id", "name", "phone", "l", "ch", "s", "t", "n", "w", "l1", "w1", "h", "l2", "m", "g", "others","o1","o2","o3","o4","del", "date"),
xscrollcommand=scroll_x.set, yscrollcommand=scroll_y.set, )
# sorted(self.customer_table,reverse=True)
scroll_x.pack(side=BOTTOM, fill=X)
scroll_y.pack(side=RIGHT, fill=Y)
scroll_x.config(command=self.customer_table.xview)
scroll_y.config(command=self.customer_table.yview)
self.customer_table.heading("id", text="Customer ID")
self.customer_table.heading("name", text="customer name")
self.customer_table.heading("phone", text="phone no")
self.customer_table.heading("l", text="S. L")
self.customer_table.heading("ch", text="S. CH")
self.customer_table.heading("s", text="S. S")
self.customer_table.heading("t", text="S. T")
self.customer_table.heading("n", text="S. N")
self.customer_table.heading("w", text="S. W")
self.customer_table.heading("l1", text="P. L")
self.customer_table.heading("w1", text="P. W")
self.customer_table.heading("h", text="P. H")
self.customer_table.heading("l2", text="P. L")
self.customer_table.heading("m", text="P. M")
self.customer_table.heading("g", text="P. G")
self.customer_table.heading("others", text="Others")
self.customer_table.heading("o1", text="Shirt Q.")
self.customer_table.heading("o2", text="Pant Q.")
self.customer_table.heading("o3", text="Coat")
self.customer_table.heading("o4", text="Kurta")
self.customer_table.heading("del", text="Delivery Date")
self.customer_table.heading("date", text="Date")
# self.customer_table.heading("center", text="Center Back Length")
self.customer_table['show'] = 'headings'
self.fetch_data()
self.customer_table.pack(fill=BOTH, expand=2)
# sorted(self.customer_table)
self.customer_table.bind("<ButtonRelease-1>", self.get_cur)
DEFAULT_PEN_SIZE = 5.0
DEFAULT_COLOR = 'black'
def setup(self):
self.old_x = None
self.old_y = None
# self.line_width = self.choose_size_button.get()
self.color = self.DEFAULT_COLOR
self.eraser_on = False
self.active_button = self.pen_button
self.c.bind('<B1-Motion>', self.paint)
self.c.bind('<ButtonRelease-1>', self.reset)
def use_pen(self):
self.activate_button(self.pen_button)
def use_eraser(self):
self.activate_button(self.eraser_button2, eraser_mode=True)
def activate_button(self, some_button, eraser_mode=False):
self.active_button.config(relief=RAISED)
some_button.config(relief=SUNKEN)
self.active_button = some_button
self.eraser_on = eraser_mode
def paint(self, event):
self.line_width = self.choose_size_button.get()
paint_color = 'white' if self.eraser_on else self.color
if self.old_x and self.old_y:
self.c.create_line(self.old_x, self.old_y, event.x, event.y,
width=self.line_width, fill=paint_color,
capstyle=ROUND, smooth=TRUE, splinesteps=36)
self.old_x = event.x
self.old_y = event.y
def reset(self, event):
self.old_x, self.old_y = None, None
def clear1(self):
self.c.delete("all")
self.image=Image.new("RGB",(200,200),(255,255,255))
self.draw=ImageDraw.Draw(self.image)
def add_customer(self):
if self.phone.get() == "" or self.customer_name.get() == "":
messagebox.showerror("Error", "All fields are required!")
else:
con = sqlite3.connect("new1.db")
cur = con.cursor()
cur.execute(
"insert into customer_jj (name,phone,l,ch,s,t,n,w,l1,w1,h,l2,m,g,others,o1,o2,o3,o4,del,date) values (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)",
(self.customer_name.get(), self.phone.get(), self.l.get(), self.ch.get(),
self.s.get(), self.t.get(), self.n.get(), self.w.get(), self.l1.get(), self.w1.get(), self.h.get(),
self.l2.get(), self.m.get(), self.g.get(), self.o.get(), self.o1.get(),self.o2.get(),self.o3.get(),self.o4.get(),self.del_date.get(), self.date.get()))
con.commit()
self.fetch_data()
self.clear()
con.close()
messagebox.showinfo("Success", "Record has been inserted")
#
def fetch_data(self):
con = sqlite3.connect("new1.db")
cur = con.cursor()
cur.execute("select * from customer_jj ORDER BY id DESC")
rows = cur.fetchall()
if len(rows) != 0:
self.customer_table.delete(*self.customer_table.get_children())
for row in rows:
self.customer_table.insert('', END, values=row)
con.commit()
con.close()
#
def clear(self):
self.id.set("")
self.customer_name.set("")
self.l.set("")
self.phone.set("")
self.ch.set("")
self.s.set("")
self.t.set("")
self.n.set("")
self.w.set("")
self.l1.set("")
self.w1.set("")
self.h.set("")
self.l2.set("")
self.m.set("")
self.g.set("")
self.o.set("")
self.o1.set("")
self.o2.set("")
self.o3.set("")
self.o4.set("")
self.del_date.set("")
def get_cur(self, ev):
cursor_row = self.customer_table.focus()
contents = self.customer_table.item(cursor_row)
row = contents['values']
self.id.set(row[0])
self.customer_name.set(row[1])
self.l.set(row[3])
self.phone.set(row[2])
self.ch.set(row[4])
self.s.set(row[5])
self.t.set(row[6])
self.n.set(row[7])
self.w.set(row[8])
self.l1.set(row[9])
self.w1.set(row[10])
self.h.set(row[11])
self.l2.set(row[12])
self.m.set(row[13])
self.g.set(row[14])
self.o.set(row[15])
self.o1.set(row[16])
self.o2.set(row[17])
self.o3.set(row[18])
self.o4.set(row[19])
self.date.set(row[21])
self.del_date.set(row[20])
def update_data(self):
con = sqlite3.connect("new1.db")
cur = con.cursor()
cur.execute(
"update customer_jj set name=?,l=?,ch=?,s=?,t=?,n=?,w=?,l1=?,w1=?,h=?,l2=?,m=?,g=?,others=?,o1=?,o2=?,o3=?,o4=?,del=?,date=? where phone=?",
(self.customer_name.get(), self.l.get(), self.ch.get(), self.s.get(),
self.t.get(), self.n.get(), self.w.get(), self.l1.get(), self.w1.get(), self.h.get(), self.l2.get(),
self.m.get(), self.g.get(), self.o.get(),self.o1.get(),self.o2.get(),self.o3.get(),self.o4.get(),self.del_date.get(), self.date.get(), self.phone.get(),))
if self.phone.get() != int:
messagebox.showerror("Please Enter a number")
else:
pass
con.commit()
self.fetch_data()
self.clear()
con.close()
#
def delete_data(self):
con = sqlite3.connect("new1.db")
cur = con.cursor()
cur.execute("delete from customer_jj where id=?", (self.id.get(),))
con.commit()
self.fetch_data()
self.clear()
con.close()
def search_data(self):
con = sqlite3.connect("new1.db")
cur = con.cursor()
cur.execute("select * from customer_jj where " + str(self.search_by.get()) + " Like '%" + str(
self.search_text.get()) + "%'")
rows = cur.fetchall()
if len(rows) != 0:
self.customer_table.delete(*self.customer_table.get_children())
for row in rows:
self.customer_table.insert('', END, values=row)
con.commit()
# self.clear()
con.close()
#
def rec(self):
top = Toplevel()
top.geometry("600x400")
top.config(bg='white')
l = Label(top, text='_______RECEIPT______')
l1 = Label(top, text='KING TAILORS', font=("times new roman", 40, "bold"))
l1.pack()
l.pack()
l.config(bg='white')
heading2 = Label(top, text="Customer Phone No " f'self.phone.get()\t')
heading1 = Label(top, text=" Date " f'self.date.get()\t')
heading2.pack()
heading1.pack()
l.config(bg='white')
item2 = Label(top, text="Customer ID\t" f'self.id.get()', bd=5, font=("times new roman", 20, "bold"),
bg="white", fg="black")
item3 = Label(top, text="Customer Name\t" f'self.customer_name.get()', bd=5,
font=("times new roman", 20, "bold"), bg="white", fg="black")
item1 = Label(top, text="Delivery Date\t" f'self.del_date.get()', bd=5, font=("times new roman", 20, "bold"),
bg="white", fg="black")
item2.pack()
item3.pack()
item1.pack()
item1.config(bg='white')
def save_data(self):
CLIENT_SECRET_FILE = 'client_secrets.json'
API_NAME = 'drive'
API_VERSION = 'v3'
SCOPES = ['https://www.googleapis.com/auth/drive']
service = Create_Service(CLIENT_SECRET_FILE, API_NAME, API_VERSION, SCOPES)
file_metadata =
'name': 'new1.db',
'parents': ['1HuEoYhq5Os5b79RsdyHX86-k1ZgE2vwz']
# media_content = MediaFileUpload('customerdatabasen1.db', mimetype='/')
# TO ADD CONTENT TO EXISTING FILE ON DRIVE
file_id = '19doKc4NrYgrR5y-HmNsfnT9Qct5_XuuY'
media_content = MediaFileUpload('new1.db', mimetype='/')
service.files().update(fileId=file_id, media_body=media_content).execute()
schedule.every(5).seconds.do(self.save_data)
while True:
schedule.run_pending()
time.sleep(1)
def checkname(self, name):
if name.isalpha():
return True
if name.isalnum():
return False
if len(str(name)) == 0:
return True
else:
messagebox.showerror('Invalid', 'Name should be in Characters')
#
def checkphone(self, phone):
if phone.isalpha():
return False
if phone.isalnum():
return True
if len(str(phone)) == 0:
return True
else:
messagebox.showerror('Invalid', 'Phone No should be in numbers')
return False
def save(self):
import uuid
filename = str(uuid.uuid4())
ps = self.c.postscript(colormode='color')
img = Image.open(io.BytesIO(ps.encode('utf-8')))
filename1 = f'image_filename.jpg'
print(filename1)
img.save(filename1)
def validation(self):
if self.customer_name.get() == '':
messagebox.showerror('Error', 'Please enter your name', parent=self.root)
def __init__(self):
self.root = Tk()
DEFAULT_PEN_SIZE = 5.0
DEFAULT_COLOR = 'black'
root = Tk()
ob = Student(root)
root.mainloop()`
[我正在使用 python Tkinter 及其与 sqlite3 的数据库连接。我能够将我的整个代码保存在数据库中，但我不知道如何在画布下获取绘图并将其保存在我的数据库中。我还希望当我在数据库中搜索我的其他数据时，与之相关的绘图也将在画布上获取。所以我的主要问题是在 add_customer 部分中，我在使用 self.customer_name 时将值插入数据库， self.phone 如何获取画布绘图的变量]
【问题讨论】：
【参考方案1】：这可能与this 重复。 和你的有一点不同，你想把它保存到 sqlite。在这种情况下，PIL 以字节为单位存储图像数据。然后您可以将其存储在 varchar 或 blob 中的 sqlite 中。
【讨论】：
我的意思是，根据您建议的链接，我必须在保存时手动为每个画布命名。但我的代码通过给它们一个唯一的名称来做到这一点，因此它们的名称不会有冗余.但是我的主要问题是如何通过哪个变量来分配tkinter绘图与数据库。因为我现在已经使用BLOB创建了一个不同的数据库但是我如何在add_customer部分为blob赋值，我已经分配了像self这样的值.customer_name,self.phone 等等，但是为画布数据分配的变量是什么 您的数据库正在尝试将所有内容存储到一个表中。如果你正在做一个基于用户的系统，你应该为不同的工作添加一个不同的表。例如存储画布数据。那可以是一张不同的桌子。这是一个疯狂的猜测，但我相信您需要查看数据库中的外键是什么。或者只是像 sqlite 这样的关系数据库是如何工作的。 好的，如果创建另一个表来存储它的画布绘图，那么我必须给出画布绘图的值，然后就可以了。 例如插入customer1（图像）值（？），（这里会是什么） 您需要将存储数据的用户的主键存储到画布表中。这样您就可以取出该用户保存的所有画布并显示给他们。以上是关于如何保存我在 tkinter canvas IN sqlite3 数据库中制作的绘图，然后再次在画布上获取它的主要内容，如果未能解决你的问题，请参考以下文章
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