teacher列表的视图函数

teacher列表的增、删、改、查函数

def teacher_list(request):
    teacher_list = models.Teacher.objects.all()
    return render(request,'teacher_list.html',{'teacher_list':teacher_list})

def delete_teacher(request):
    tid = request.GET.get('teacher_id')
    models.Teacher.objects.filter(id=tid).delete()
    return redirect('/teacher_list/')

'''
#添加老师方法二：

def add_teacher(request):
    if request.method == "POST":
        tname = request.POST.get("tname")
        class_ids = request.POST.getlist("cid")
        #去数据库插入一条数据
        teacher_obj = models.Teacher.objects.create(tname=tname)
        # 直接添加ID
        # teacher_obj.cid.add(*class_ids) #class_ids = [1,2,3]
        #teacher_obj.cid.add(*class_ids)

        #第二种 方式   添加的是class对象
        class_objs = models.Class.objects.filter(id__in=class_ids)
        #设置班级关系，因为是新的老师所以  用set方式设置

        teacher_obj.cid.set(class_objs)

        return redirect('/teacher_list/')

    class_list = models.Class.objects.all()
    return render(request,'add_teacher.html',{"class_list":class_list})
'''

'''
添加老师方法一
def add_teacher(request):
    if request.method == "POST":
        tname = request.POST.get("tname")
        class_ids = request.POST.getlist("cid")
        #去数据库插入一条数据
        teacher_obj = models.Teacher.objects.create(tname=tname)
        # 直接添加ID
        # teacher_obj.cid.add(*class_ids) #class_ids = [1,2,3]
        teacher_obj.cid.add(*class_ids)
        return redirect('/teacher_list/')

    class_list = models.Class.objects.all()
    return render(request,'add_teacher.html',{"class_list":class_list})
    #添加的是class对象
        #class_objs = models.Class.objects.filter(id__in=class_ids)
        # teacher_obj.cid.add(*class_obj) #class_objs = [<Class obj(1)>,<Class obj(2)>,<Class obj(3)>]

        #设置班级关系,因为是新的老师，所以可以直接用set来设置
        #teacher_obj.cid.set(class_objs)  #class_objs = [<Class obj(1)>,<Class obj(2)>,<Class obj(3)>]
    
'''


'''
def edit_teacher(request):
    if request.method == "POST":
        id = request.POST.get("id")
        tname = request.POST.get("tname")
        class_ids = request.POST.getlist("cid")
        models.Teacher.objects.filter(id=id).update(tname=tname)
        obj = models.Teacher.objects.get(id=id)
        # obj.tname = tname
        # obj.save()
        obj.cid.set(class_ids)
        return redirect(reverse('teacher_list'))

    tid = request.GET.get("teacher_id")
    teacher_obj = models.Teacher.objects.get(id=tid)
    class_list = models.Class.objects.all()
    return render(request,'edit_teacher.html',{'teacher':teacher_obj,'class_list':class_list})
'''

def add_teacher(request):
    if request.method == "POST":
        tname = request.POST.get("tname")
        class_ids = request.POST.getlist("cid")
        teacher_obj = models.Teacher.objects.create(tname=tname)
        class_objs = models.Class.objects.filter(id__in=class_ids)
        teacher_obj.cid.set(class_objs)
        return redirect(reverse('teacher_list'))
    class_list = models.Class.objects.all()
    return render(request,'add_teacher.html',{"class_list":class_list})

def edit_teacher(request):
    if request.method == "POST":
        id = request.POST.get("id")
        tname = request.POST.get("tname")
        models.Teacher.objects.filter(id=id).update(tname=tname)
        obj = models.Teacher.objects.get(id=id)
        class_ids = request.POST.getlist("cid")
        obj.cid.set(class_ids)
        return redirect(reverse('teacher_list'))

    tid = request.GET.get("teacher_id")
    teacher_obj = models.Teacher.objects.get(id=tid)
    class_list = models.Class.objects.all()
    return render(request, 'edit_teacher.html', {'teacher': teacher_obj, 'class_list': class_list})