Django 对模型创建的两表插入数据

news/2024/7/7 20:47:54 标签: django, 数据库

1，添加模型

Test/app8/models.py

from django.db import models

class User(models.Model):
    username = models.CharField(max_length=50, unique=True)
    email = models.EmailField(unique=True)
    password = models.CharField(max_length=128)  # 使用哈希存储密码
    first_name = models.CharField(max_length=60)
    last_name = models.CharField(max_length=50)
    # 添加其他字段，例如：
    # age = models.IntegerField()
    # bio = models.TextField()
    # ...

    class Meta:
        db_table = 'users2'

    def __str__(self):
        return self.username


class Person(models.Model):
    name = models.CharField(max_length=100)
    age = models.IntegerField()

    def __str__(self):
        return self.name

class Passport(models.Model):
    person = models.OneToOneField(Person, on_delete=models.CASCADE)
    passport_number = models.CharField(max_length=20)
    issue_date = models.DateField()

    def __str__(self):
        return f"{self.passport_number} - {self.person.name}"

2，执行迁移命令

python manage.py makemigrations app8
python manage.py migrate app8

使用迁移命令会生成Person和Passport两个张模型表，Passport表中生成一个外键，命名为person_id

3，创建视图函数

Test/app8/views.py

from django.shortcuts import render
from .models import User


def create_user(request):
    if request.method == 'POST':
        username = request.POST.get('username')
        email = request.POST.get('email')
        # ... 获取其他字段的值

        # 创建用户实例
        user = User(
            username=username,
            email=email,
            # ... 填充其他字段
        )
        user.save()  # 保存到数据库
        # ... 处理成功或失败的逻辑
    return render(request, '8/1.html')


from django.shortcuts import render, get_object_or_404
from django.http import HttpResponse
from app8.models import Person, Passport

def delete_person(request, person_id):
    person_to_delete = get_object_or_404(Person, id=person_id)
    person_to_delete.delete()

    return HttpResponse("Person and associated Passport have been deleted.")


from django.shortcuts import render
from django.http import HttpResponse
from .models import Person, Passport
import datetime


def add_data(request):
    if request.method == 'POST':
        name = request.POST.get('name')
        age = request.POST.get('age')
        passport_number = request.POST.get('passport_number')
        issue_date = request.POST.get('issue_date')

        person = Person(name=name, age=age)
        person.save()

        passport = Passport(person=person, passport_number=passport_number, issue_date=datetime.datetime.strptime(issue_date, '%Y-%m-%d').date())
        passport.save()

        return HttpResponse("数据已成功保存！")

    else:
        return render(request, '8\insert_data.html')

4，添加html代码

Test/templates/8/insert_data.html

<!DOCTYPE html>
<html>
<head>
    <title>插入数据</title>
</head>
<body>
    <form method="post">
        {% csrf_token %}
        <label for="name">姓名:</label><br>
        <input type="text" id="name" name="name"><br>
        <label for="age">年龄:</label><br>
        <input type="text" id="age" name="age"><br>
        <label for="passport_number">护照号码:</label><br>
        <input type="text" id="passport_number" name="passport_number"><br>
        <label for="issue_date">发行日期:</label><br>
        <input type="date" id="issue_date" name="issue_date"><br>
        <input type="submit" value="提交">
    </form>
</body>
</html>

5，访问页面

http://127.0.0.1:8000/app8/add_data/

<!DOCTYPE html>
<html>
<head>
    <title>插入数据</title>
</head>
<body>
    <form method="post">
        {% csrf_token %}
        <label for="name">姓名:</label><br>
        <input type="text" id="name" name="name"><br>
        <label for="age">年龄:</label><br>
        <input type="text" id="age" name="age"><br>
        <label for="passport_number">护照号码:</label><br>
        <input type="text" id="passport_number" name="passport_number"><br>
        <label for="issue_date">发行日期:</label><br>
        <input type="date" id="issue_date" name="issue_date"><br>
        <input type="submit" value="提交">
    </form>
</body>
</html>