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})
