1.

#引用modelformsetfrom django.forms.models import modelformset_factory#必须继承forms.ModelForm！class StudentStudyRecordModelForm(forms.ModelForm):    class Meta:#需要建立关联的表StudentStudyRecord        model = StudentStudyRecord#score", "homework_note  显示的字段        fields = ["score", "homework_note"]

2.

class RecordScoreView(View):    def get(self, request, class_study_record_id):        # modelformset_factory固定的写法 ，model=StudentStudyRecord这是需要关联的表名，form后边是我们上边的新建类名 ，  extra=0  不加它默认数据多一行        model_formset_cls = modelformset_factory(model=StudentStudyRecord, form=StudentStudyRecordModelForm, extra=0)        queryset = StudentStudyRecord.objects.filter(classstudyrecord=class_study_record_id)        print(class_study_record_id)   #2 第2天的课程        print("queryset",queryset)   #查询第2天课程的学生记录        formset = model_formset_cls(queryset=queryset)        return render(request, "record_score.html", locals())    def post(self, request, class_study_record_id):        model_formset_cls = modelformset_factory(model=StudentStudyRecord, form=StudentStudyRecordModelForm, extra=0)        queryset = StudentStudyRecord.objects.filter(classstudyrecord=class_study_record_id)        # print("request.POST", request.POST)        formset = model_formset_cls(request.POST)        #??????????????????????????????//        print("formset",formset)        print(123456789)        #判断是否通过校验        if formset.is_valid():            formset.save()        # print(formset.errors)        return redirect(request.path)

3.

#record_score.html    
             
     
录入{
   { class_study_record_obj.class_obj }}day{
   { class_study_record_obj.day_num }}成绩
 
     
        
      
       学习记录
      
        
      
            
       
                
        
                             {
    % csrf_token %}                            {
    # 固定的写法#}                    {
    { formset.management_form }}                    
         
            { % for form in formset %} 
             { { form.id }} 
 { % endfor %} 
                                  
            
             
姓名
             
考勤
             
作业成绩
             
作业评语
            
           
                                  
           
            
{ { form.instance.student }}
             
{ { form.instance.get_record_display }} 
             
{ { form.score }} 
             
{ { form.homework_note }}