django+ajax实现简单的批量删除

views.py

def deleteall(request):
　　list = request.POST.getlist("val")
　　if request.method =='POST':
　　all = request.POST.getlist('val')

　　for i in all:
　　　　if i!='':
　　　　　　a = Student.objects.get(id=i)
　　　　　　a.delete()
　　return redirect(reverse('allstu'))
return redirect(reverse('allstu'))

urls.py

　　   

 path('all/deleteall/', views.deleteall,name = 'deleteall')

html

    {% for stu in stus %}
        <tr>
            <td><input type="checkbox" onclick="aa()" name="itme" value="{{ stu.id }}"></td>
            <td>{{ forloop.counter }}</td>
            <td>{{ stu.sname }}</td>
            <td>{{ stu.clazz.cname }}</td>
            <td><a href="{% url 'delete' id=stu.id %}">删除</a></td>
            <td><a href="{% url 'update'  sid=stu.id %}">修改</a></td>
        </tr>
    {% endfor %}
    <tr>
        <td><a href="{% url 'deleteall' %}" onclick="a()">批量删除</a></td>
    </tr>

    <tr>
        <td><a href="/add/" style="margin: 0 auto">增加</a></td>
    </tr>


</table>
<script>
    onload = function () {
        alert('欢迎' + "{{ user }}")
        return false;
    }
</script>
<script>
    function aa() {
        var one = document.getElementsByName('itme');
        one.checkbox = true;
    }

    function a() {
        var vlist =[]
        var ones = document.getElementsByName('itme')

        for (var i=0; i<ones.length; i++) {
            if (ones[i].checked === true) {
                {#console.log(ones[i].value)#}
                vlist.push(ones[i].value)

            }

        }
        console.log(vlist);
        {#alert(vlist)#}
        if (vlist.length !== 0) {
            {#console.log(vlist);#}
            $.ajax({
                url: "deleteall/",
                contenType: 'application/json',
                type: 'POST',
                //不加这个，ajax会将结果后边加个[]，例如{'vals[]':[4,6,8]}
                traditional: true,
                //不加这个，会报服务器终止了一个在运行的程序
                async: false,
                data: ({
                    'val': vlist
                }),
                success: function () {
                    alert("删除成功");
                },
                error: function () {
                    alert("删除失败");

                },

            })
        } else {
            var error_m = "请选择数据";
            alert(error_m);
        }

    }
</script>