Django - 无法在页面上显示值

如何解决Django - 无法在页面上显示值

我无法在主页上显示来自数据库的值。我无法弄清楚我做错了什么。以下是我的html

HTML

<!DOCTYPE html>
<html>
    <head>
        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js" async></script>
    </head>

    <div class="container">
        {% for manhour in manhours %}
            <div class="article-Metadata">
              <a class="mr-2" href="#">{{ manhour.station }}</a>
              <small class="text-muted">{{ manhour.date|date:"F d,Y" }}</small>
            </div>
            <h2><a class="article-title" href="{% url 'manhour-detail' manhour.id %}">{{ manhour.station }}</a></h2>
        {% endfor %}
    </div>
    <div class="user_panel">
                <a href="/logout">logout</a>
    </div>
    <div class="user_panel">
                <a href="/manhour/new">Upload</a>
    </div>

</html>

view.py

# Create your views here.
from django.shortcuts import render,redirect
from django.contrib.auth.mixins import LoginrequiredMixin,UserPassesTestMixin
from django.views.generic import (
    ListView,DetailView,CreateView,UpdateView,DeleteView
)
from .form import InputForm
from manhour.models import ManHour 
from django.contrib.auth.forms import UserCreationForm,AuthenticationForm
from django.contrib import messages
from django.contrib.auth import login,logout,authenticate
from django.urls import reverse


def login_request(request):
    if request.method == 'POST':
        form = AuthenticationForm(request=request,data=request.POST)
        if form.is_valid():
            username = form.cleaned_data.get('username')
            password = form.cleaned_data.get('password')
            user = authenticate(username=username,password=password)
            if user is not None:
                login(request,user)
                messages.info(request,f"You are Now logged in as {username}")
                return redirect('manhour-home')
            else:
                messages.error(request,"Invalid username or password.")
        else:
            messages.error(request,"Invalid username or password.")
    else:
        form = AuthenticationForm()
    return render(request = request,template_name = "manhour/login.html",context={"form":form})


class PostListView(LoginrequiredMixin,ListView):
    model = ManHour
    template_name = 'manhour/home.html'  # <app>/<model>_<viewtype>.html
    context_object_name = 'manhour'
    # ordering = ['-date']


class PostDetailView(LoginrequiredMixin,DetailView):
    model = ManHour

urls.py

from django.contrib import admin
from django.urls import path
# from manhour.views import login_request
from manhour.views import (
    PostListView,PostDetailView,PostCreateView,PostUpdateView,login_request
)
from django.contrib.auth.views import logoutView

urlpatterns = [
    path('admin/',admin.site.urls),path('login/',login_request,name='login'),path('',path('manhour/',PostListView.as_view(),name='manhour-home'),path("logout/",logoutView.as_view(),name="logout"),path('manhour/new/',PostCreateView.as_view(),name='manhour-create'),path('manhour/<int:pk>/',PostDetailView.as_view(),name='manhour-detail'),path('manhour/<int:pk>/update/',PostUpdateView.as_view(),name='manhour-update'),]

谁能指出为什么我不能在我的 manhour-home 页面上列出所有值？在主页上，我可以看到运行正常的 logout 和 upload 按钮。但是我无法在主页上查看数据库中的所有对象。

更新我已将以下内容添加到 views.py

def home(request):
    context = {
        'manhour': ManHour.objects.all()
    }
    return render(request,'manhour/home.html',context)

解决方法

您尚未定义需要在视图中显示的内容。您可以为视图定义 queryset 属性，也可以定义 get_queryset() 方法。

您的上下文对象名称错误，在视图中您使用的是“工时”，而在您的主页模板中您使用的是“工时”。

所以，我认为这应该解决它。

def home(request):
    context = {
        'manhours': ManHour.objects.all()
    }
    return render(request,'manhour/home.html',context)

Django - 无法在页面上显示值

如何解决Django - 无法在页面上显示值

解决方法

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