update student view

EduSystemServer/EduSystemServer/urls.py

@@ -21,4 +21,5 @@ urlpatterns = [
     path('Eduadmin/', admin.site.urls),
     path('api/', include(("API.urls", "api"), namespace="api")),
     path('student/', include(("Student.urls", "student"), namespace="student")),
+    path('course/', include(("course.urls", "course"), namespace="course"))
 ]

EduSystemServer/Student/views.py

@@ -74,16 +74,19 @@ def studnets(request):
     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']
-        Student.objects.filter(sid=sid).update(s_name=s_name)
-        Student.objects.filter(sid=sid).update(s_sex=s_sex)
-        Student.objects.filter(sid=sid).update(s_grade=s_grade)
-        Student.objects.filter(sid=sid).update(s_class_name=s_class_name)
-        Student.objects.filter(sid=sid).update(s_major=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)
-

EduSystemServer/course/models.py

@@ -12,6 +12,10 @@ class Course(models.Model):
     credit = models.IntegerField(verbose_name="课程学分", name="credit")
     tid = models.ForeignKey(Teacher, to_field="tid", on_delete=models.CASCADE, name="tid")
 
+    def to_dict(self):
+        return {"cid": self.cid, "c_name": self.c_name, "type": self.type, "credit": self.credit,
+                "tid": self.tid}
+
     class Meta:
         db_table = "course"
         verbose_name = "课程"
@@ -24,6 +28,9 @@ class SC(models.Model):
     middle_grade = models.IntegerField(name="middle_grade")
     end_grade = models.IntegerField(name="end_grade")
 
+    def to_dict(self):
+        return {"sid": self.sid, "cid": self.cid, "middle_grade": self.middle_grade, "end_grade": self.end_grade}
+
     class Meta:
         db_table = "sc"
         verbose_name = "管理员"

EduSystemServer/course/urls.py

@@ -0,0 +1,7 @@
+from django.urls import path
+
+from course.views import *
+
+urlpatterns = [
+    path("", courses),
+]

EduSystemServer/course/views.py

@@ -1,3 +1,69 @@
 from django.shortcuts import render
 
 # Create your views here.
+from django.http import JsonResponse
+from course.models import *
+from django.views.decorators.csrf import csrf_exempt
+from io import BytesIO
+from django.http.multipartparser import MultiPartParser
+
+
+@csrf_exempt
+def courses(request):
+    if request.method == "POST":
+        course = Course()
+        course.c_name = request.POST.get("c_name")
+        course.type = request.POST.get('type')
+        course.credit = request.POST.get("credit")
+        course.tid = request.POST.get('tid')
+        course.save()
+        response = {"code": 200, "message": "添加成功！", "data": course.to_dict()}
+        return JsonResponse(response)
+    elif request.method == "GET":
+        cid = request.GET.get('cid')
+        c_name = request.GET.get('c_name')
+        c_type = request.GET.get('type')
+        tid = request.GET.get('tid')
+        data = []
+        if cid:
+            filtered = Course.objects.filter(cid=cid)
+            for item in filtered:
+                data.append(item.to_dict())
+        elif c_name:
+            filtered = Course.objects.filter(c_name=c_name)
+            for item in filtered:
+                data.append(item.to_dict())
+        elif c_type:
+            filtered = Course.objects.filter(type=c_type)
+            for item in filtered:
+                data.append(item.to_dict())
+        elif tid:
+            filtered = Course.objects.filter(tid=tid)
+            for item in filtered:
+                data.append(item.to_dict())
+        else:
+            all_objects = Course.objects.all()
+            for item in all_objects:
+                data.append(item.to_dict())
+        return JsonResponse({'code': 200, 'msg': 'success', 'data': data}, safe=False)
+    elif request.method == "DELETE":
+        delete = MultiPartParser(request.META, BytesIO(request.body), request.upload_handlers, request.encoding).parse()
+        cid = delete[0]['cid']
+        try:
+            info = Course.objects.filter(cid=cid).get().to_dict()
+            Course.objects.filter(cid=cid).delete()
+            response = {"code": 200, "message": "删除成功！", "data": info}
+            return JsonResponse(response)
+        except:
+            response = {"code": 200, "message": "删除失败，未找到课程信息！"}
+            return JsonResponse(response)
+    elif request.method == "PUT":
+        put = MultiPartParser(request.META, request, request.upload_handlers, request.encoding).parse()
+        cid = put[0]['cid']
+        c_name = put[0]['c_name']
+        c_type = put[0]['type']
+        credit = put[0]['credit']
+        tid = put[0]['tid']
+        Course.objects.filter(cid=cid).update(c_name=c_name, type=c_type, credit=credit, tid=tid)
+        data = Course.objects.filter(cid=cid)[0].to_dict()
+        return JsonResponse({'code': 200, 'msg': 'success', 'data': data}, safe=False)