如何在mysql python中修复“TypeError：需要一个整数（获取类型IntVar）”

Question

我正在尝试在我的数据库表中插入日期。但我得到了

Traceback (most recent call last):
  File "D:\SchoolApp\Python\lib\tkinter\__init__.py", line 1705, in __call__
    return self.func(*args)
  File "D:/SchoolApp/Python/register only.py", line 45, in register
    self.entry_birthday = datetime.datetime(self.birth_day)
TypeError: an integer is required (got type IntVar)

我将变量self.get_birthday 转换为int(self.get_birthday)，但它仍然是一个错误。

这是我的代码

import tkinter as tk
import pymysql
from tkinter import *
from tkinter import messagebox
import datetime

class Main(tk.Frame):
    def __init__(self, master, *args, **kwargs):
        tk.Frame.__init__(self, master, *args, **kwargs)
        self.master = master
        master.title("Thesis")

        self.register_button = Button(master, text="Register", command=self.register)
        self.register_button.pack()

        self.db = pymysql.connect(host = "localhost",user = "root",passwd = "",db = "database")
        self.cursor = self.db.cursor()
        self.QueryResident = "CREATE TABLE IF NOT EXISTS residence (BIRTH_DATE date, AGE varchar(255)not null)"
        self.cursor.execute(self.QueryResident)

    def registered(self,birth_day):
        self.get_birth_day =self.birth_day.get()

        if (self.get_birth_day == ""):
                messagebox.showerror("Error!","Please complete the required field")
        else:
            self.cursor.execute ("INSERT INTO residence (BIRTH_DATE) VALUES(%s)",(self.get_birth_day))

            self.db.commit()
            messagebox.showinfo("Success!","Registration successful")

        self.cursor.close()
        self.db.close()


    def register(self):
        self.master_register = Toplevel()

        self.birth_day = IntVar()

        self.label_birthday = Label(self.master_register, text = "Birth Day")
        self.label_birthday.pack()
        self.entry_birthday = Entry(self.master_register, textvariable = self.birth_day)
        self.entry_birthday = datetime.datetime(self.birth_day)
        self.entry_birthday.pack()
        self.button_submit = Button(self.master_register, text = "Submit", command = lambda: self.registered(self.birth_day))
        self.button_submit.pack()

我的预期输出是输入的日期 get 将以任何日期格式存储到数据库中，我将根据给定的出生日期计算年龄。

Answer 1

这里有一些修改，希望能帮助你更进一步。基本上你需要定义如何输入日期（所以我选择格式yyyymmdd）。也最好作为 StringVar 输入。然后在注册的方法中将yyyymmdd 解析为日期时间对象，然后您可以将其放入数据库中。

不接受使用“try-except”格式错误的任何日期。

代码

import tkinter as tk
import pymysql
from tkinter import *
from tkinter import messagebox
import datetime

class Main(tk.Frame):
    def __init__(self, master, *args, **kwargs):
        tk.Frame.__init__(self, master, *args, **kwargs)
        self.master = master
        master.title("Thesis")

        self.register_button = Button(master, text="Register", command=self.register)
        self.register_button.pack()

        self.db = pymysql.connect(host = "localhost",user = "root",passwd = "",db = "database")
        self.cursor = self.db.cursor()
        self.QueryResident = "CREATE TABLE IF NOT EXISTS residence (BIRTH_DATE date, AGE varchar(255)not null)"
        self.cursor.execute(self.QueryResident)

    def registered(self,birth_day):

        birthday = self.birth_day.get()
        try:
            _year = int(birthday[0:4])
            _month = int(birthday[4:6])
            _day = int(birthday[6:8])

            birthday = datetime.datetime(_year, _month, _day)
            print(birthday)  # for debugging purpose you can remove

        except Exception as e:
            print(e)
            birthday = ""

        if (birthday == ""):
                messagebox.showerror("Error!","Please complete the required field")

        else:
            sql_string = "INSERT INTO residence (BIRTH_DATE) VALUES(%s)"
            print(sql_string) # for debugging purpose you can remove
            self.cursor.execute (sql_string,(birthday))

            self.db.commit()
            messagebox.showinfo("Success!","Registration successful")

        self.cursor.close()
        self.db.close()

    def register(self):
        self.master_register = Toplevel()

        self.birth_day = StringVar()

        self.label_birthday = Label(self.master_register, text = "Birth Day [yyyymmdd]")
        self.label_birthday.pack()
        self.entry_birthday = Entry(self.master_register, textvariable = self.birth_day)
        self.entry_birthday.pack()
        self.button_submit = Button(self.master_register, text = "Submit", command = lambda: self.registered(self.birth_day))
        self.button_submit.pack()

root = Tk()
Main(root)
root.mainloop()

Answer 2

self.birth_day 是一个对象，而不是一个整数。由于是IntVar，所以需要调用get方法取值。

datetime.datetime(self.birth_day.get())