一、 功能
- 實現對學生對個人信息的增刪查改
- 實現後臺對所有學生信息的操作
二、開發工具
Windows + Pycharm + Mysql + Django
三、git地址
https://github.com/Gscsd8527/StudentSystem
四、代碼實現
1. model
from django.db import models
# Create your models here.
# 課程表
class CourseModel(models.Model):
cour_id = models.CharField(max_length=15, verbose_name='學生ID')
course = models.CharField(max_length=30, verbose_name='課程')
grade = models.IntegerField(default=60, verbose_name='分數')
class Meta():
db_table = 'course'
def __str__(self):
return '學生Id: 課程: 分數: '.format(self.cour_id, self.course, self.grade)
# 學生信息表
class StudentInformationModel(models.Model):
stu_id = models.CharField(max_length=15, verbose_name='學生ID')
stu_name = models.CharField(max_length=30, verbose_name='學生姓名')
stu_phone = models.CharField(max_length=20, verbose_name='學生電話')
str_addr = models.TextField(verbose_name='學生地址')
stu_faculty = models.CharField(max_length=20, verbose_name='院系')
stu_major = models.CharField(max_length=30, verbose_name='專業')
# 取消外鍵(外鍵是可用的)
# stu_course = models.ForeignKey('CourseModel', on_delete=True)
class Meta():
db_table = 'studentinformation'
# 學生用戶名密碼錶
class StudentModel(models.Model):
stu_id = models.CharField(max_length=15, verbose_name='學生ID')
username = models.CharField(max_length=10, verbose_name='用戶名')
password = models.CharField(max_length=10, verbose_name='密碼')
class Meta():
db_table = 'student'
2. urls
from django.urls import path
from studentManagement import views
app_name = 'studentManager'
urlpatterns = [
path('index/', views.index, name='index'),
path('login/', views.login, name='login'),
path('logout/', views.logout, name='logout'),
path('add/', views.add, name='add'),
path('select/', views.select, name='select'),
path('delete/', views.delete, name='delete'),
path('update/', views.update, name='update')
]
3. views
from django.shortcuts import render, HttpResponse, redirect, reverse
from .models import StudentModel, StudentInformationModel, CourseModel
# Create your views here.
# 主界面
def index(request):
context = {
'status': '未登錄狀態'
}
return render(request, 'studentManage/index.html', context)
# 登錄界面
def login(request):
if request.method == "POST":
id = request.POST.get('id')
username = request.POST.get('username')
password = request.POST.get('password')
if not all([id, username, password]):
return HttpResponse('參數不全')
else:
student = StudentModel.objects.filter(username=username, password=password)
if len(student):
# request.session['username'] = username
# 用以下方法,將用戶的信息存放到session中,session在中間件中是默認啓用的
request.session['user'] = {
'id': id,
'username': username,
'password': password
}
context = {
'status': username,
'aa': '已登錄',
'lenght': 1
}
return render(request, 'studentManage/index.html', context)
else:
context = {
'aa': '用戶名密碼錯誤'
}
return render(request, 'studentManage/login.html', context)
else:
context = {
'status': '未登錄狀態',
'length': 0
}
return render(request, 'studentManage/login.html', context)
# 退出界面
def logout(request):
# 註銷掉用戶,從刪除session中保存的信息
del request.session['user']
return render(request, 'studentManage/index.html')
# 增加數據 增加只能root用戶或者管理員才能操作
def add(request):
if request.method == "POST":
root_information = request.session['user']
id = root_information['id']
root_id = StudentModel.objects.get(pk=1).stu_id
if id == root_id:
stu_id = request.POST.get('stu_id')
stu_name = request.POST.get('stu_name')
if not all([stu_id, stu_name]):
context = {
'msg': '學號和名字有遺漏',
}
return render(request, 'studentManage/add.html', context)
stu_phone = request.POST.get('stu_phone')
stu_addr = request.POST.get('str_addr')
stu_faculty = request.POST.get('stu_faculty')
stu_major = request.POST.get('stu_major')
stu_data = StudentInformationModel()
stu_data.stu_id = stu_id
stu_data.stu_name = stu_name
stu_data.stu_phone = stu_phone
stu_data.str_addr = stu_addr
stu_data.stu_faculty = stu_faculty
stu_data.stu_major = stu_major
stu_data.save()
context = {
'sucess': '增加成功',
}
return render(request, 'studentManage/add.html', context)
else:
context = {
'error': '只用root用戶和管理員才能操作'
}
return render(request, 'studentManage/add.html', context)
else:
return render(request, 'studentManage/add.html')
# 查詢
def select(request):
if request.method == "POST":
id = request.POST.get('stu_id')
stu_data = StudentInformationModel.objects.get(stu_id=id)
stu_id = stu_data.stu_id
stu_name = stu_data.stu_name
stu_phone = stu_data.stu_phone
str_addr = stu_data.str_addr
stu_faculty = stu_data.stu_faculty
stu_major = stu_data.stu_major
stu_course = CourseModel.objects.filter(cour_id=id)
dct = {}
for stu in stu_course:
dct[stu.course] = stu.grade
context = {
'stu_id': stu_id,
'stu_name': stu_name,
'stu_phone': stu_phone,
'str_addr': str_addr,
'stu_faculty': stu_faculty,
'stu_major': stu_major,
'course_data': dct,
'msg': True
}
return render(request, 'studentManage/select.html', context)
else:
root_information = request.session['user']
id = root_information['id']
context = {
'msg': False,
'id': id
}
return render(request, 'studentManage/select.html', context)
# 刪除
def delete(request):
if request.method == "POST":
id = request.POST.get('id')
StudentInformationModel.objects.filter(stu_id=id).delete()
context = {
'msg': '成功刪除'
}
return render(request, 'studentManage/delete.html', context)
else:
root_information = request.session['user']
id = root_information['id']
context = {
'id': id
}
return render(request, 'studentManage/delete.html', context)
# 修改
def update(request):
user_information = request.session['user']
id = user_information['id']
stu_data = StudentInformationModel.objects.get(stu_id=id)
stu_id = stu_data.stu_id
stu_name = stu_data.stu_name
stu_phone = stu_data.stu_phone
stu_addr = stu_data.str_addr
stu_faculty = stu_data.stu_faculty
stu_major = stu_data.stu_major
context = {
'stu_id': stu_id,
'stu_name': stu_name,
'stu_phone': stu_phone,
'stu_addr': stu_addr,
'stu_faculty': stu_faculty,
'stu_major': stu_major,
}
if request.method == "POST":
stu_id = request.POST.get('stu_id')
stu_name = request.POST.get('stu_name')
stu_phone = request.POST.get('stu_phone')
stu_addr = request.POST.get('stu_addr')
stu_faculty = request.POST.get('stu_faculty')
stu_major = request.POST.get('stu_major')
# StudentInformationModel.objects.filter(stu_id=id).update(stu_id=stu_id, stu_name=stu_name, stu_phone=stu_phone, str_addr=stu_addr, stu_faculty=stu_faculty, stu_major=stu_major)
# 或者 以下這種,對單個數據進行修改
stu_data = StudentInformationModel.objects.get(stu_id=id)
stu_data.stu_id = stu_id
stu_data.stu_name = stu_name
stu_data.stu_phone = stu_phone
stu_data.stu_addr = stu_addr
stu_data.stu_faculty = stu_faculty
stu_data.stu_major = stu_major
stu_data.save()
context = {
'stu_id': stu_id,
'stu_name': stu_name,
'stu_phone': stu_phone,
'stu_addr': stu_addr,
'stu_faculty': stu_faculty,
'stu_major': stu_major,
'msg': '修改成功'
}
return render(request, 'studentManage/update.html', context)
else:
return render(request, 'studentManage/update.html', context)
五、功能展示
首頁:
登錄後
增加: 只有root用戶才能增加,我默認了id爲1的是root用戶
修改:將當前學生信息展現出來,方便我們修改,前端頁面中加了placeholder屬性
刪除:
查詢