Django Python DetailView 未按预期工作。我在尝试查看特定笔记时遇到问题
Django Python DetailView not working as expected. I get an issue when I try and view a specific note
需要建议。有人会指出我正确的方向吗？
将 Django 3.1.1 与 Pycharm Community 2020.2
结合使用
我正在使用 ListView 在一页上显示所有待办事项注释
allTasks.html
{% extends "app/base.html" %}
{% load static %}
{% block content %}
<body>
<div class="section">
<div class="container" id="heading">
<h3>List of all Tasks to-date</h3>
</div>
<div class="container">
<ul id="taskcontainer">
{% for i in obj %}
<li>
<div class="row">
<div class="col-md-12">
<div class="row no-gutters border rounded overflow-hidden flex-md-row mb-4 shadow-sm h-md-250 position-inblock">
<div class="col p-4 d-flex flex-column position-static">
<strong class="d-inline-block mb-2 text-primary">{{ i.name }}</strong>
<h6 class="mb-0">{{ i.date }}</h6>
<div class="mb-1 text-muted">Team {{ i.team_project }}</div>
<p class="card-text mb-auto">{{ i.notes }}</p>
<p class="card-text mb-auto">Priority: {{ i.urgency }}</p>
<strong class="d-inline-block mb-2 text-danger">Completed? {{ i.completed }}</strong>
<span>
<a href="{% url 'task-detail' task.id %}" class="link">View</a>
<a href="#" class="link">Edit</a>
</span>
</div>
</div>
</div>
</div>
</li>
{% endfor %}
</ul>
</div>
</div>
</body>
从这里我进入每个注释的 DetailView
task_detail.html
{% extends "app/base.html" %}
{% load static %}
{% block content %}
<br>
<div class="row">
<div class="col-md-12">
<div class="row no-gutters border rounded overflow-hidden flex-md-row mb-4 shadow-sm h-md-250 position-inblock">
<div class="col p-4 d-flex flex-column position-static">
<strong class="d-inline-block mb-2 text-primary">{{ object.name }}</strong>
<h6 class="mb-0">{{ object.date }}</h6>
<div class="mb-1 text-muted">Team {{ object.team_project }}</div>
<p class="card-text mb-auto">{{ object.notes }}</p>
<p class="card-text mb-auto">Priority: {{ object.urgency }}</p>
<strong class="d-inline-block mb-2 text-danger">Completed? {{ object.completed }}</strong>
<strong class="d-inline-block mb-2 text-danger">Overdue? {{ object.overdue }}</strong>
</div>
</div>
</div>
</div>
{% endblock content %}
这是我的 views.py
def task(request):
form = TasksForm()
if request.method == 'POST':
form = TasksForm(request.POST or None)
if form.is_valid():
form.save()
messages.success(request, 'Task has been saved!')
return render(request, 'app/tasks.html', {'form': form})
else:
return render(request, 'app/tasks.html', {'form': form})
class TaskListView(ListView):
model = Task
template_name = 'app/allTasks.html' # <app> / <model>_<viewtype>.html
context_object_name = 'obj'
ordering = ['-date'] # ordering by date
class TaskDetailView(DetailView):
model = Task
urls.py
urlpatterns = [
path('', views.index, name='index'),
path('task/', views.task, name='tasks'),
path('allTasks/', TaskListView.as_view(), name='allTasks'),
path('task/<int:pk>/', TaskDetailView.as_view(), name='task-detail'),
]
我的问题如下
NoReverseMatch at /allTasks/
Reverse for 'task-detail' with arguments '('',)' not found. 1 pattern(s) tried: ['task/(?P<pk>[0-9]+)/$']
Request Method: GET
Request URL: http://127.0.0.1:8000/allTasks/
Django Version: 3.1.1
Exception Type: NoReverseMatch
Exception Value:
Reverse for 'task-detail' with arguments '('',)' not found. 1 pattern(s) tried: ['task/(?P<pk>[0-9]+)/$']
Exception Location: C:\Users\mackm\PycharmProjects\IT6041-Project\venv\lib\site-packages\django\urls\resolvers.py, line 685, in _reverse_with_prefix
Python Executable: C:\Users\mackm\PycharmProjects\IT6041-Project\venv\Scripts\python.exe
Python Version: 3.8.5
Python Path:
['C:\Users\mackm\PycharmProjects\IT6041-Project\IT6041_Project_Folder',
'C:\Users\mackm\AppData\Local\Programs\Python\Python38-32\python38.zip',
'C:\Users\mackm\AppData\Local\Programs\Python\Python38-32\DLLs',
'C:\Users\mackm\AppData\Local\Programs\Python\Python38-32\lib',
'C:\Users\mackm\AppData\Local\Programs\Python\Python38-32',
'C:\Users\mackm\PycharmProjects\IT6041-Project\venv',
'C:\Users\mackm\PycharmProjects\IT6041-Project\venv\lib\site-packages']
Server time: Mon, 12 Oct 2020 03:48:26 +0000
Error during template rendering
In template C:\Users\mackm\PycharmProjects\IT6041-Project\IT6041_Project_Folder\app\templates\app\base.html, error at line 22
Reverse for 'task-detail' with arguments '('',)' not found. 1 pattern(s) tried: ['task/(?P<pk>[0-9]+)/$']
12 <link rel="canonical" href="https://getbootstrap.com/docs/4.5/examples/album/">
13
14 <!-- Bootstrap core CSS -->
15 <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css"
16 integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin="anonymous">
17 <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"
18 integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV"
19 crossorigin="anonymous"></script>
20 <script src="https://code.jquery.com/jquery-3.5.1.slim.min.js"
21 integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj"
22 crossorigin="anonymous"></script>
23 <script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.1/dist/umd/popper.min.js"
24 integrity="sha384-9/reFTGAW83EW2RDu2S0VKaIzap3H66lZH81PoYlFhbGU+6BZp6G7niu735Sk7lN"
25 crossorigin="anonymous"></script>
26
27 <style>
28 .bd-placeholder-img {
29 font-size: 1.125rem;
30 text-anchor: middle;
31 -webkit-user-select: none;
32 -moz-user-select: none;
base.html
{% load static %}
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="Mark Otto, Jacob Thornton, and Bootstrap contributors">
<meta name="generator" content="Jekyll v4.1.1">
<title>My Project App</title>
<link rel="canonical" href="https://getbootstrap.com/docs/4.5/examples/album/">
<!-- Bootstrap core CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css"
integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin="anonymous">
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"
integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV"
crossorigin="anonymous"></script>
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js"
integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj"
crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.1/dist/umd/popper.min.js"
integrity="sha384-9/reFTGAW83EW2RDu2S0VKaIzap3H66lZH81PoYlFhbGU+6BZp6G7niu735Sk7lN"
crossorigin="anonymous"></script>
<style>
.bd-placeholder-img {
font-size: 1.125rem;
text-anchor: middle;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
}
@media (min-width: 768px) {
.bd-placeholder-img-lg {
font-size: 3.5rem;
}
}
</style>
<!-- Custom styles for this template -->
<link rel="stylesheet" href="{% static 'app/album.css' %}" type="text/css">
</head>
<body>
<header>
<nav class="navbar navbar-expand-lg navbar-dark bg-primary">
<a class="navbar-brand" href="/admin/">Admininstration</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarText" aria-controls="navbarText" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarText">
<ul class="navbar-nav mr-auto">
<li class="nav-item">
<a class="nav-link" href="{% url 'index' %}">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="{% url 'tasks' %}">To-Do</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Meeting Minutes</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Reflectives</a>
</li>
</ul>
<form class="form-inline">
<input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
</form>
</div>
</nav>
</header>
<main role="main" class="container">
<div class="row">
<div class="col-md-12">
{% if messages %}
{% for message in messages %}
<div class="alert alert-{{ message.tags }}">
{{ message }}
</div>
{% endfor %}
{% endif %}
{% block content %}
{% endblock %}
</div>
</div>
</main>
<footer class="text-muted">
<div class="container">
<p class="float-right">
<a href="#">Back to top</a>
</p>
<p>This is a Bootstrap Album example, reconfigured to suit my project. </p>
<p>New to Bootstrap? <a href="https://getbootstrap.com/" target="_blank">Visit the homepage</a> or read our <a href="https://getbootstrap.com/docs/4.5/getting-started/introduction/" target="_blank">getting started guide</a>.</p>
</div>
</footer>
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script>window.jQuery || document.write('<script src="../assets/js/vendor/jquery.slim.min.js"><\/script>')</script>
<script src="../assets/dist/js/bootstrap.bundle.min.js"></script>
</body>
</html>
如有任何帮助，我将不胜感激。提前谢谢你
在你的 allTasks.html 你使用 {% url 'task-detail' task.id %}
但是你没有 task 对象。
之前你定义了循环 - {% for i in obj %}，所以你的 url 应该是 {% url 'task-detail' i.id %}
需要建议。有人会指出我正确的方向吗？
将 Django 3.1.1 与 Pycharm Community 2020.2
结合使用我正在使用 ListView 在一页上显示所有待办事项注释
allTasks.html
{% extends "app/base.html" %}
{% load static %}
{% block content %}
<body>
<div class="section">
<div class="container" id="heading">
<h3>List of all Tasks to-date</h3>
</div>
<div class="container">
<ul id="taskcontainer">
{% for i in obj %}
<li>
<div class="row">
<div class="col-md-12">
<div class="row no-gutters border rounded overflow-hidden flex-md-row mb-4 shadow-sm h-md-250 position-inblock">
<div class="col p-4 d-flex flex-column position-static">
<strong class="d-inline-block mb-2 text-primary">{{ i.name }}</strong>
<h6 class="mb-0">{{ i.date }}</h6>
<div class="mb-1 text-muted">Team {{ i.team_project }}</div>
<p class="card-text mb-auto">{{ i.notes }}</p>
<p class="card-text mb-auto">Priority: {{ i.urgency }}</p>
<strong class="d-inline-block mb-2 text-danger">Completed? {{ i.completed }}</strong>
<span>
<a href="{% url 'task-detail' task.id %}" class="link">View</a>
<a href="#" class="link">Edit</a>
</span>
</div>
</div>
</div>
</div>
</li>
{% endfor %}
</ul>
</div>
</div>
</body>
从这里我进入每个注释的 DetailView
task_detail.html
{% extends "app/base.html" %}
{% load static %}
{% block content %}
<br>
<div class="row">
<div class="col-md-12">
<div class="row no-gutters border rounded overflow-hidden flex-md-row mb-4 shadow-sm h-md-250 position-inblock">
<div class="col p-4 d-flex flex-column position-static">
<strong class="d-inline-block mb-2 text-primary">{{ object.name }}</strong>
<h6 class="mb-0">{{ object.date }}</h6>
<div class="mb-1 text-muted">Team {{ object.team_project }}</div>
<p class="card-text mb-auto">{{ object.notes }}</p>
<p class="card-text mb-auto">Priority: {{ object.urgency }}</p>
<strong class="d-inline-block mb-2 text-danger">Completed? {{ object.completed }}</strong>
<strong class="d-inline-block mb-2 text-danger">Overdue? {{ object.overdue }}</strong>
</div>
</div>
</div>
</div>
{% endblock content %}
这是我的 views.py
def task(request):
form = TasksForm()
if request.method == 'POST':
form = TasksForm(request.POST or None)
if form.is_valid():
form.save()
messages.success(request, 'Task has been saved!')
return render(request, 'app/tasks.html', {'form': form})
else:
return render(request, 'app/tasks.html', {'form': form})
class TaskListView(ListView):
model = Task
template_name = 'app/allTasks.html' # <app> / <model>_<viewtype>.html
context_object_name = 'obj'
ordering = ['-date'] # ordering by date
class TaskDetailView(DetailView):
model = Task
urls.py
urlpatterns = [
path('', views.index, name='index'),
path('task/', views.task, name='tasks'),
path('allTasks/', TaskListView.as_view(), name='allTasks'),
path('task/<int:pk>/', TaskDetailView.as_view(), name='task-detail'),
]
我的问题如下
NoReverseMatch at /allTasks/
Reverse for 'task-detail' with arguments '('',)' not found. 1 pattern(s) tried: ['task/(?P<pk>[0-9]+)/$']
Request Method: GET
Request URL: http://127.0.0.1:8000/allTasks/
Django Version: 3.1.1
Exception Type: NoReverseMatch
Exception Value:
Reverse for 'task-detail' with arguments '('',)' not found. 1 pattern(s) tried: ['task/(?P<pk>[0-9]+)/$']
Exception Location: C:\Users\mackm\PycharmProjects\IT6041-Project\venv\lib\site-packages\django\urls\resolvers.py, line 685, in _reverse_with_prefix
Python Executable: C:\Users\mackm\PycharmProjects\IT6041-Project\venv\Scripts\python.exe
Python Version: 3.8.5
Python Path:
['C:\Users\mackm\PycharmProjects\IT6041-Project\IT6041_Project_Folder',
'C:\Users\mackm\AppData\Local\Programs\Python\Python38-32\python38.zip',
'C:\Users\mackm\AppData\Local\Programs\Python\Python38-32\DLLs',
'C:\Users\mackm\AppData\Local\Programs\Python\Python38-32\lib',
'C:\Users\mackm\AppData\Local\Programs\Python\Python38-32',
'C:\Users\mackm\PycharmProjects\IT6041-Project\venv',
'C:\Users\mackm\PycharmProjects\IT6041-Project\venv\lib\site-packages']
Server time: Mon, 12 Oct 2020 03:48:26 +0000
Error during template rendering
In template C:\Users\mackm\PycharmProjects\IT6041-Project\IT6041_Project_Folder\app\templates\app\base.html, error at line 22
Reverse for 'task-detail' with arguments '('',)' not found. 1 pattern(s) tried: ['task/(?P<pk>[0-9]+)/$']
12 <link rel="canonical" href="https://getbootstrap.com/docs/4.5/examples/album/">
13
14 <!-- Bootstrap core CSS -->
15 <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css"
16 integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin="anonymous">
17 <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"
18 integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV"
19 crossorigin="anonymous"></script>
20 <script src="https://code.jquery.com/jquery-3.5.1.slim.min.js"
21 integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj"
22 crossorigin="anonymous"></script>
23 <script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.1/dist/umd/popper.min.js"
24 integrity="sha384-9/reFTGAW83EW2RDu2S0VKaIzap3H66lZH81PoYlFhbGU+6BZp6G7niu735Sk7lN"
25 crossorigin="anonymous"></script>
26
27 <style>
28 .bd-placeholder-img {
29 font-size: 1.125rem;
30 text-anchor: middle;
31 -webkit-user-select: none;
32 -moz-user-select: none;
base.html
{% load static %}
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="Mark Otto, Jacob Thornton, and Bootstrap contributors">
<meta name="generator" content="Jekyll v4.1.1">
<title>My Project App</title>
<link rel="canonical" href="https://getbootstrap.com/docs/4.5/examples/album/">
<!-- Bootstrap core CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css"
integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin="anonymous">
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"
integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV"
crossorigin="anonymous"></script>
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js"
integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj"
crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.1/dist/umd/popper.min.js"
integrity="sha384-9/reFTGAW83EW2RDu2S0VKaIzap3H66lZH81PoYlFhbGU+6BZp6G7niu735Sk7lN"
crossorigin="anonymous"></script>
<style>
.bd-placeholder-img {
font-size: 1.125rem;
text-anchor: middle;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
}
@media (min-width: 768px) {
.bd-placeholder-img-lg {
font-size: 3.5rem;
}
}
</style>
<!-- Custom styles for this template -->
<link rel="stylesheet" href="{% static 'app/album.css' %}" type="text/css">
</head>
<body>
<header>
<nav class="navbar navbar-expand-lg navbar-dark bg-primary">
<a class="navbar-brand" href="/admin/">Admininstration</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarText" aria-controls="navbarText" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarText">
<ul class="navbar-nav mr-auto">
<li class="nav-item">
<a class="nav-link" href="{% url 'index' %}">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="{% url 'tasks' %}">To-Do</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Meeting Minutes</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Reflectives</a>
</li>
</ul>
<form class="form-inline">
<input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
</form>
</div>
</nav>
</header>
<main role="main" class="container">
<div class="row">
<div class="col-md-12">
{% if messages %}
{% for message in messages %}
<div class="alert alert-{{ message.tags }}">
{{ message }}
</div>
{% endfor %}
{% endif %}
{% block content %}
{% endblock %}
</div>
</div>
</main>
<footer class="text-muted">
<div class="container">
<p class="float-right">
<a href="#">Back to top</a>
</p>
<p>This is a Bootstrap Album example, reconfigured to suit my project. </p>
<p>New to Bootstrap? <a href="https://getbootstrap.com/" target="_blank">Visit the homepage</a> or read our <a href="https://getbootstrap.com/docs/4.5/getting-started/introduction/" target="_blank">getting started guide</a>.</p>
</div>
</footer>
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script>window.jQuery || document.write('<script src="../assets/js/vendor/jquery.slim.min.js"><\/script>')</script>
<script src="../assets/dist/js/bootstrap.bundle.min.js"></script>
</body>
</html>
如有任何帮助，我将不胜感激。提前谢谢你
在你的 allTasks.html 你使用 {% url 'task-detail' task.id %}
但是你没有 task 对象。
之前你定义了循环 - {% for i in obj %}，所以你的 url 应该是 {% url 'task-detail' i.id %}