我是 Django 的初学者。我现在正在做一个小项目，我在做更新和删除操作时遇到了一个问题。我使用的是forms.py，但使用的是html文件中的自定义输入字段。我尝试了许多方法，但都返回错误。当我尝试更新时，它会创建一个新条目，而不是更新。当我执行DELETE时，没有任何React。请检查下面的代码，并帮助我解决这个问题。
urls.py
from django.urls import path
from . import views
urlpatterns = [
path('', views.home, name='home'),
path('contacts', views.contacts, name='contacts'),
path('update/', views.update, name='update'),
path('delete/', views.delete, name='delete'),
]views.py
def update(request, contact_id):
details = Contact.objects.filter(id=contact_id)
if request.method == 'POST':
form = ContactForm(request.POST or None, instance=details)
if form.is_valid():
form.save()
return redirect('contacts')
else:
return render(request, 'update.html', {'details':details})
def delete(request, contact_id):
contact = Contact.objects.all()
if request.method == 'POST':
details = Contact.objects.get(id=contact_id)
details.delete()
return redirect('contacts')
return render(request, 'contacts.html', {'contact':contact})联系人.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.2.1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-iYQeCzEYFbKjA/T2uDLTpkwGzCiq6soy8tYaI1GyVh/UjpbCx/TYkiZhlZB6+fzT" crossorigin="anonymous">
</head>
<body>
<div class="container">
<div class="row mt-5">
<div class="col-sm-8">
<a href="{% url 'home' %}" class="btn btn-primary mb-3">Home ></a>
<table class="table">
<thead>
<tr>
<th scope="col">#</th>
<th scope="col">First</th>
<th scope="col">Last</th>
<th scope="col">Handle</th>
<th scope="col">Actions</th>
</tr>
</thead>
<tbody>
{% for item in contact %}
<tr>
<th scope="row">{{item.id}}</th>
<td>{{item.name}}</td>
<td>{{item.email}}</td>
<td>{{item.mobile}}</td>
<td><a href="{% url 'update' item.id %}" class="btn btn-success">Edit</a>
<a href="{% url 'delete' item.id %}" class="btn btn-danger">Delete</a>
</td>
</tr>
{% endfor %}
</tbody>
</table>
</div>
</div>
</div>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.2.1/dist/js/bootstrap.bundle.min.js" integrity="sha384-u1OknCvxWvY5kfmNBILK2hRnQC3Pr17a+RTT6rIHI7NnikvbZlHgTPOOmMi466C8" crossorigin="anonymous"></script>
</body>
</html>update.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.2.1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-iYQeCzEYFbKjA/T2uDLTpkwGzCiq6soy8tYaI1GyVh/UjpbCx/TYkiZhlZB6+fzT" crossorigin="anonymous">
</head>
<body>
<div class="container">
<div class="row">
<div class="col-5 mt-5">
<a href="{% url 'contacts' %}" class="btn btn-primary mb-3">Contacts ></a>
<form action=" url '{{details.id}}' " method="post" autocomplete="off">
{% csrf_token %}
{% for item in details %}
<div class="mb-3">
<label for="name" class="form-label">Name</label>
<input type="text" class="form-control" id="name" placeholder="full name" name="name" value="{{item.name}}">
</div>
<div class="mb-3">
<label for="email" class="form-label">Email</label>
<input type="email" class="form-control" id="email" placeholder="name@name.com" name="email" value="{{item.email}}">
</div>
<div class="mb-3">
<label for="mobile" class="form-label">Mobile</label>
<input type="number" class="form-control" id="mobile" placeholder="Eg: 0546321023" name="mobile" value="{{item.mobile}}">
</div>
{% endfor %}
<button type="submit" class="btn btn-primary mt-2">Update</button>
</form>
</div>
</div>
</div>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.2.1/dist/js/bootstrap.bundle.min.js" integrity="sha384-u1OknCvxWvY5kfmNBILK2hRnQC3Pr17a+RTT6rIHI7NnikvbZlHgTPOOmMi466C8" crossorigin="anonymous"></script>
</body>
</html>forms.py
from django.forms import ModelForm
from .models import Contact
class ContactForm(ModelForm):
class Meta:
model = Contact
fields = ['name','email','mobile']Models.py
from django.db import models
# Create your models here.
class Contact(models.Model):
name = models.CharField(max_length=100)
email = models.EmailField(max_length=50)
mobile = models.IntegerField()
def __str__(self):
return self.name
1条答案
按热度按时间0dxa2lsx1#
在urls.py中进行以下更改：
您的UPDATE和DELETE视图运行良好，但它们之前没有获得任何联系人ID。现在，通过进行这些更改，假设请求https://localhost:8000/update/1，则urlDispatcher将匹配URL并调用视图函数，如下所示
尝试阅读Django Docs的这一部分：https://docs.djangoproject.com/en/4.1/intro/tutorial03/#writing-more-views