EduSystem/EduSystemServer/Student/views.py

from django.shortcuts import render

# Create your views here.
from django.http import JsonResponse
from Student.models import Student
from django.views.decorators.csrf import csrf_exempt
from io import BytesIO
from django.http.multipartparser import MultiPartParser


@csrf_exempt
def studnets(request):
    if request.method == "POST":
        student = Student()
        student.s_username = request.POST.get("s_username")
        student.s_password = request.POST.get("s_password")
        student.s_name = request.POST.get("s_name") or ''
        student.s_sex = request.POST.get("s_sex") or ''
        student.s_grade = request.POST.get("s_grade") or ''
        student.s_class_name = request.POST.get("s_class_name") or ''
        student.s_major = request.POST.get("s_major") or ''
        student.save()
        response = {"code": 200, "message": "添加成功！", "data": student.to_dict()}
        return JsonResponse(response)
    elif request.method == "GET":
        sid = request.GET.get('sid')
        s_name = request.GET.get('s_name')
        s_sex = request.GET.get('s_sex')
        s_grade = request.GET.get('s_grade')
        s_class_name = request.GET.get('s_class_name')
        s_major = request.GET.get('s_major')
        data = []
        if sid:
            filtered = Student.objects.filter(sid=sid)
            for student in filtered:
                data.append(student.to_dict())
        elif s_name:
            filtered = Student.objects.filter(s_name=s_name)
            for student in filtered:
                data.append(student.to_dict())
        elif s_sex:
            filtered = Student.objects.filter(s_sex=s_sex)
            for student in filtered:
                data.append(student.to_dict())
        elif s_grade:
            filtered = Student.objects.filter(s_grade=s_grade)
            for student in filtered:
                data.append(student.to_dict())
        elif s_class_name:
            filtered = Student.objects.filter(s_class_name=s_class_name)
            for student in filtered:
                data.append(student.to_dict())
        elif s_major:
            filtered = Student.objects.filter(s_major=s_major)
            for student in filtered:
                data.append(student.to_dict())
        else:
            all_objects = Student.objects.all()
            for studnet in all_objects:
                data.append(studnet.to_dict())
        return JsonResponse({'code': 200, 'msg': 'success', 'data': data}, safe=False)
    elif request.method == "DELETE":
        parser = MultiPartParser(request.META, BytesIO(request.body), request.upload_handlers, request.encoding)
        post_dict = parser.parse()
        sid = post_dict[0]['sid']
        try:
            info = Student.objects.filter(sid=sid).get().to_dict()
            Student.objects.filter(sid=sid).delete()
            response = {"code": 200, "message": "删除成功！", "data": info}
            return JsonResponse(response)
        except:
            response = {"code": 200, "message": "删除失败，未找到学生信息！"}
            return JsonResponse(response)
    elif request.method == "PUT":
        put = MultiPartParser(request.META, request, request.upload_handlers, request.encoding).parse()
        sid = put[0]['sid']
        s_username = put[0]['s_username']
        s_name = put[0]['s_name']
        s_sex = put[0]['s_sex']
        s_grade = put[0]['s_grade']
        s_class_name = put[0]['s_class_name']
        s_major = put[0]['s_major']
        try:
            Student.objects.filter(sid=sid).update(s_username=s_username, s_name=s_name, s_sex=s_sex, s_grade=s_grade,
                                                   s_class_name=s_class_name,
                                                   s_major=s_major)
        except:
            Student.objects.create(sid=sid, s_username=s_username, s_name=s_name, s_sex=s_sex, s_grade=s_grade,
                                   s_class_name=s_class_name,
                                   s_major=s_major)
        data = Student.objects.filter(sid=sid)[0].to_dict()
        return JsonResponse({'code': 200, 'msg': 'success', 'data': data}, safe=False)