django學習_學生信息管理後臺

1、功能：

1. 實現對學生對我的信息的增刪查改
2. 實現後臺對全部學生信息的操做

2、此後臺採用的是MVC的風格模式進行編碼

 

1.VIEWS部分

from django.http import HttpResponse
from django.shortcuts import render
from .models import Student, OneClass


# from django.http import request
# Create your views here.
def index(request):
    return render(request, 'index.html')


def add(request):
    name = request.GET.get('name')
    age = request.GET.get('age')
    learn = request.GET.get('learn')
    type1 = request.GET.get('type1')
    # type 爲1表示執行數據庫操做，不然只是跳轉頁面
    if type1 == '1':
        Student.objects.create(name=name, age=age, learn=learn)  # 在student 表裏新建一條記錄
        # return render(request, 'add.html',)
    return render(request, 'add.html')


def delete(request):
    name = request.GET.get('name')
    type1 = request.GET.get('type1')
    # type 爲 1 表示執行數據庫查詢操做
    # if type1 == '1':
    #     # 查詢所在記錄
    #     try:
    #         stu: Student = Student.objects.filter(name=name).get()
    #     except Exception:
    #         return HttpResponse("無此記錄")
    #     return render(request, 'delete.html', {'stu': stu})
    # type 爲 2 表示執行數據庫確認刪除操做
    if type1 == '2':
        try:
            Student.objects.filter(name=name).get()
        except Exception:
            return HttpResponse("無此記錄")
        Student.objects.filter(name=name).delete()   # 按照姓名， 進行過濾
        return render(request, 'delete.html', {'msg': '刪除成功'})
    return render(request, 'delete.html')


def update(request):
    name = request.GET.get('name')
    age = request.GET.get('age')
    learn = request.GET.get('learn')
    type1 = request.GET.get('type1')
    # type 爲1表示執行數據庫操做，不然只是跳轉頁面
    if type1 == '1':
        try:
            stu = Student.objects.get(name=name)
            stu.name = name
            stu.age = age
            stu.learn = learn
            stu.save()
            return render(request, "update.html", {'msg': '修改爲功'})
        except Exception:
            return HttpResponse("無此記錄")
    return render(request, 'update.html')


def query(request):
    name = request.GET.get('name')
    type1 = request.GET.get('type1')
    # type 爲1表示執行數據庫操做，不然只是跳轉頁面
    if type1 == '1':
        if name == 'all':
            stu_list = Student.objects.all()
            return render(request, 'query.html', {'stu_list': stu_list})
        try:
            Student.objects.filter(name=name).get()
        except Exception:
            return HttpResponse("無此記錄")
        stu = Student.objects.get(name=name)  # 在student 表裏查詢一條記錄
        return render(request, 'query.html', {'stu': stu})

    return render(request, 'query.html')

 

2.MODELS 部分

from django.db import models


# Create your models here.
# 學生類模板
class Student(models.Model):
    name = models.CharField(max_length=20)
    age = models.IntegerField()
    learn = models.CharField(max_length=20)

# 教師類模板
class Teacher(models.Model):
    name = models.CharField(max_length=20)
    age = models.IntegerField()
    teach = models.CharField(max_length=20)
    student = models.ManyToManyField(Student, through="OneClass")


# 班級類模板
class OneClass(models.Model):
    name = models.CharField(max_length=50)
    teacher = models.ForeignKey('Teacher', on_delete=models.CASCADE)
    student = models.ForeignKey('Student', on_delete=models.CASCADE)

　　

3.CONTROLLER部分

• URL配置

from django.conf.urls import url
from . import views

urlpatterns=[
    url(r'^index', views.index),
    url(r'^add', views.add),
    url(r'^delete', views.delete),
    url(r'^query', views.query),
    url(r'^update', views.update)
]

　　

5、功能展現 
1.主界面（功能選擇）

2.增長學生信息 

 

3.查詢學生信息 

 

4.刪除學生信息 

 

做者：含笑半步顛√

博客連接：https://www.cnblogs.com/lixy-88428977

聲明：本文爲博主學習感悟總結，水平有限，若是不當，歡迎指正。若是您認爲還不錯，歡迎轉載。轉載與引用請註明做者及出處。