models.py 对应的配置

class Classes(models.Model):caption = models.CharField(max_length=32)class Teacher(models.Model):name = models.CharField(max_length=32)cls = models.ManyToManyField('Classes')

修改 views.py

@auth
def handle_teacher(request):current_user = request.session.get('username')# teacher_list = models.Teacher.objects.all()# for obj in teacher_list:#     print(obj.id, obj.name, obj.cls.all())# 分页，获取第一页5位老师对应的记录teacher_list = models.Teacher.objects.filter(id__in=models.Teacher.objects.all()[0:5]).values('id', 'name', 'cls__id', 'cls__caption')result = {}for t in teacher_list:# 判断是否已在 result 中if t['id'] in result:# 判断 cls__id 的值是否为空if t['cls__id']:result[t['id']]['cls_list'].append({'id': t['cls__id'], 'caption': t['cls__caption']})else:# cls__id 有值if t['cls__id']:temp = [{'id': t['cls__id'], 'caption': t['cls__caption']},]else:# cls__id 没值temp = []# 给 result 字典添加值result[t['id']] = {'nid': t['id'],'name': t['name'],'cls_list': temp}return render(request, 'teacher.html', {'username': current_user, 'teacher_list': result})

修改 teacher.html

{% extends "layout.html" %}{% block css %}.tag{display: inline-block;padding: 5px;border: 1px solid red;background-color: lightpink;cursor: pointer;}{% endblock %}{% block content %}<h1>老师列表</h1><table border="1"><thead></thead><tbody>{% for dic in teacher_list.values %}<tr><td>{{ dic.nid }}</td><td>{{ dic.name }}</td><td>{% for c in dic.cls_list %}<span class="tag" nid="{{ c.id }}">{{ c.caption }}</span>{% endfor %}</td></tr>{% endfor %}</tbody></table>
{% endblock %}{% block js %}<script>$(function () {$('#menu_teacher').addClass('active');})</script>
{% endblock %}