When I access the page, nothing appears-CodePudding

I want to use the following code to filter the data in models.py in views.py and output the Today_list to today.html, but when I open this url, nothing is displayed. What is the problem?

    class Post(models.Model): 
        created =models.DateTimeField(auto_now_add=True,editable=False,blank=False,null=False)
        title =models.CharField(max_length=255,blank=False,null=False)
        body =models.TextField(blank=True,null=False)
        def __str__(self):
            return self.title

views.py

    from Todolist import models
    from django.views.generic import ListView
    from django.utils import timezone

    class TodayView(ListView):
        model = models.Post
        template_name ='Todolist/today.html'
        def get_queryset(self):
            Today_list= models.Post.objects.filter(
                created=timezone.now()).order_by('-id')
            return Today_list

todaylist.html

    {% extends "Todolist/base.html" %}
    {% block content %}
    {% for item in Today_list %}
    <tr>
        <td>{{item.title}}</td>
    </tr>
    {% endfor %}
    {% endblock %}

urls.py

    urlpatterns=[
        path('today/' ,views.TodayView.as_view() ,name='today')]

CodePudding user response：

use get_context_data to add Today_list to context ref : https://docs.djangoproject.com/en/4.1/ref/class-based-views/generic-display/

def get_context_data(self, **kwargs):
    context = super().get_context_data(**kwargs)
    context['Today_list'] = self.get_queryset()
    return context

or you can simply use in template model.name_list in your case it will be post_list instead of today_list

{% extends "Todolist/base.html" %}
{% block content %}
{% for item in post_list %}
<tr>
    <td>{{item.title}}</td>
</tr>
{% endfor %}
{% endblock %}

CodePudding user response：

problem is where you want objects that created today, but your filter check just right now, not today. So for achieve today's posts, you can do the this filtering:

from django.utils import timezone

def get_queryset(self):
    Today_list = models.Post.objects.filter(
        created__gte=timezone.now().replace(hour=0, minute=0, second=0),
        created__lte=timezone.now().replace(hour=23, minute=59, second=59)
    ).order_by('-id')
    return Today_list

this queryset returns objects that have been created today.