我正在做一个django项目来创建足球训练。我正在测试模型和它的保存。当我试图保存它的时候，问题出现了，一定是关于重定向的，因为在数据库中训练确实被保存了，但是它没有把我重定向到任何地方，错误出来了。
models.py

from django.db import models
from django.utils import timezone
from users.models import User

class Entrenamiento(models.Model):
    autor = models.ForeignKey(User, on_delete=models.CASCADE)
    idEntrenamiento = models.AutoField(primary_key=True)
    idEquipo = models.IntegerField()
    fecha = models.DateTimeField(default=timezone.now)
    idDireccionCampo = models.IntegerField()
    temporadas = [
        ('2022/2023','2022/2023'),
        ('2023/2024','2023/2024'),
        ('2024/2025','2024/2025'),
        ('2025/2026','2025/2026')
    ]
    temporada = models.CharField(max_length=50, choices=temporadas, default='2022/2023')

    def __str__(self):
        return 'Entrenamiento {}'.format(self.idEntrenamiento)

    @property
    def entreno(self):
       return 'Entrenamiento {} de {} para {} con fecha del {}, será en el campo {}'.format(self.idEntrenamiento, self.temporada, self.idEquipo, self.fecha, self.idDireccionCampo)

views.py

from django.conf import settings
from django.contrib.auth.mixins import LoginRequiredMixin, UserPassesTestMixin
from django.contrib.messages.views import SuccessMessageMixin
from django.contrib.auth.models import User
from django.contrib import messages
from django.http import HttpRequest, HttpResponseRedirect
from django.shortcuts import get_object_or_404, render
from django.views.generic import (CreateView, DeleteView, DetailView, ListView,UpdateView)
from django import forms
from django.urls import reverse_lazy

from .models import Entrenamiento

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

class PostListView(ListView):
    model = Entrenamiento
    template_name = 'entrenamientos/entrenamientos.html'#<app>/<model>_<viewtype>.html
    context_object_name = 'entrenamientos'
    ordering = ['-fecha']

class PostDetailView(DetailView):
    model = Entrenamiento

class PostCreateView(LoginRequiredMixin, CreateView):
    model = Entrenamiento
    fields = ['autor','idEntrenamiento','idEquipo','idDireccionCampo','fecha']
    widgets = {'fecha': forms.DateInput(attrs={'type': 'date'})}

    def form_valid(self,form):
        form.instance.autor = self.request.user
        return super().form_valid(form)

class PostUpdateView(LoginRequiredMixin, UserPassesTestMixin, UpdateView):
    model = Entrenamiento
    fields = ['autor','idEntrenamiento','idEquipo']

    def form_valid(self,form):
        form.instance.autor = self.request.user
        return super().form_valid(form)

    def test_func(self):
        entrenamiento = self.get_object()
        if self.request.user == entrenamiento.autor:
            return True
        return False

class PostDeleteView(DeleteView):
    model = Entrenamiento
    success_url = '/'

    def test_func(self):
        entrenamiento = self.get_object()
        if self.request.user == entrenamiento.autor:
            return True
        return False

urls.py

from django.urls import path
    from .views import PostListView, PostDetailView, PostCreateView, PostUpdateView, PostDeleteView
    from django.contrib.auth.decorators import login_required
    
    app_name = 'entrenamientos'
    
    urlpatterns = [
        path('', login_required(PostListView.as_view()), name='entrenamientos'),
        path('entrenamiento/<int:pk>/',login_required( PostDetailView.as_view()), name='entrenamiento-detail'),
        path('entrenamiento/new/',login_required( PostCreateView.as_view()), name='entrenamiento-create'),
        path('entrenamiento/<int:pk>/update/',login_required( PostUpdateView.as_view()), name='entrenamiento-update'),
        path('entrenamiento/<int:pk>/delete/',login_required( PostDeleteView.as_view()), name='entrenamiento-delete'),
        path('entrenamiento', login_required(PostListView.as_view()), name='entrenamientos')
    ]

错误：
在/entrenamientos/entrenamiento/new处配置不正确/没有要重定向到的URL。请提供URL或在模型上定义get_absolute_url方法。
我觉得有些地方不对劲：定义表单有效（自身，表单）：
我尝试在def form_valid中添加此内容，但出现了另一个错误

# success_url = reverse_lazy('entrenamiento')
    # success_message = 'Entrenamiento añadido'

我希望解决方案