模型定义

from django.db import models

class Grades(models.Model):

g_name = models.CharField(max_length=20)

create_date = models.DateTimeField()

girl_num = models.IntegerField()

boy_num = models.IntegerField()

isDelete = models.BooleanField(default=False)

def __str__(self):

return self.g_name

class Meta:

db_table = 'grades'

class Students(models.Model):

s_name = models.CharField(max_length=20)

s_gender = models.BooleanField(default=True)

s_age = models.IntegerField()

conetend = models.CharField(max_length=20)

isDlete = models.BooleanField(default=False)

# 关联外键

s_grade = models.ForeignKey("Grades")

def __str__(self):

return self.s_name

class Meta:

db_table = 'students'

url

from django.conf.urls import url

from user import views

urlpatterns = [

url(r'^show_info/',views.show_info,name='show_info'),

url(r'^add_stu/',views.add_stu,name='add_stu'),

url(r'^del_stu/(\d+)/',views.del_stu,name='del_stu'),

url(r'^mod_stu/(\d+)/',views.mod_stu,name='mod_stu'),

url(r'^sel_stu/',views.sel_stu,name='sel_stu'),

]

视图函数定义

from django.shortcuts import render

from django.http import HttpResponseRedirect

from django.urls import reverse

from user.models import Students,Grades

def show_info(request):

if request.method == 'GET':

stus = Students.objects.all()

return render(request,'info.html',{'stus':stus})

def add_stu(request):

if request.method == 'GET':

grades = Grades.objects.all()

return render(request,'add.html',{'grades':grades})

if request.method == 'POST':

name = request.POST.get('name')

age = request.POST.get('age')

gender = request.POST.get('sex')

content = request.POST.get('msg')

grade = request.POST.getlist('check')[0]

sgrade = Grades.objects.get(g_name=grade)

Students.objects.create(s_name=name,s_age=age,s_gender=gender,contend=content,s_grade=sgrade)

return HttpResponseRedirect(reverse('user:show_info'))

def del_stu(request,id):

if request.method == 'GET':

Students.objects.get(pk=id).delete()

return HttpResponseRedirect(reverse('user:show_info'))

def mod_stu(request,id):

if request.method == 'GET':

stu = Students.objects.get(pk=id)

grades = Grades.objects.all()

return render(request,'mod.html',{'stu':stu,'grades':grades})

if request.method == 'POST':

name = request.POST.get('name')

age = request.POST.get('age')

gender = request.POST.get('gender')

grade = request.POST.getlist('check')[0]

u_grade = Grades.objects.get(g_name=grade)

Students.objects.filter(pk=id).update(s_name=name,s_age=age,s_gender=gender,s_grade=u_grade)

return HttpResponseRedirect(reverse('user:show_info'))

def sel_stu(request):

if request.method == 'GET':

return render(request,'sel.html')

if request.method == 'POST':

name = request.POST.get('name')

try:

stu = Students.objects.get(s_name=name)

return render(request, 'sel.html', {'stu': stu})

except:

return render(request,'sel.html',{'error':'该学生不存在'})

页面html定义

添加页

{% extends 'base.html' %}

{% block content %}

{% csrf_token %}

姓名：

年龄：

性别：

描述：

{% for grade in grades %}

{{grade.g_name}}

{% endfor %}

{% endblock %}

修改页

{% extends 'base.html' %}

{% block content %}

{% csrf_token %}

姓名：

年龄：

性别：

{% for grade in grades %}

{{grade.g_name}}

{% endfor %}

{% endblock %}

查询页

{% extends 'base.html' %}

{% block content %}

{% csrf_token %}

请输入学生姓名:

{% if stu %}

序号姓名年龄性别简介班级

{{stu.id}}{{stu.s_name}}{{stu.s_age}}{{stu.s_gender}}{{stu.contend}}{{stu.s_grade.g_name}}

{% endif %}

{{error}}

{% endblock %}

信息页

{% extends 'base.html' %}

{% block content %}

序号姓名年龄性别班级班级成立时间删除学生修改学生

{% for stu in stus %}

{{forloop.counter}}{{stu.s_name}}{{stu.s_age}}{{stu.s_gender}}{{stu.s_grade.g_name}}{{stu.s_grade.create_date}}删除修改

{% endfor %}

增加学生

查询学生

{% endblock %}