Django查询列表到模板-按类别显示项目

# models.py
from django.db import models

class Project(models.Model):
    name = models.CharField(max_length=100)
    category = models.CharField(max_length=50)

# views.py
from django.shortcuts import render
from .models import Project

def project_list(request):
    projects = Project.objects.all().order_by('category')
    context = {'projects': projects}
    return render(request, 'project_list.html', context)

# project_list.html
{% for project in projects %}
    <h3>{{ project.category }}</h3>
    <ul>
    {% for item in project %}
        <li>{{ item.name }}</li>
    {% endfor %}
    </ul>
{% endfor %}

# urls.py
from django.urls import path
from .views import project_list

urlpatterns = [
    path('projects/', project_list, name='project_list'),
]