---恢复内容开始---

结构如下

mysite

|

|--monitor

| 　　　|

|　　　 |--views.py

| 　       |--urls.py

|　　　 |--admin.py

|　    　 |--models.py

|--mysite（默认创建）

|　　　 |

|　　　 |--settings.py

| 　   　 |--urls.py

|--manage.py

|

|--db.sqlite3

首先定义models.py，生成数据库的表结构

from django.db import modelsfrom django.utils.html import  format_html# Create your models here.class  UserInfo(models.Model):    Username = models.CharField(max_length=12,help_text="Ple input your name")    Password = models.CharField(max_length=12,blank=True,default="kkk")    Age = models.IntegerField()    def __str__(self):        return  "< %s >"%(self.Username)class Author(models.Model):    first_name = models.CharField(max_length=32)    last_name = models.CharField(max_length=5)    email = models.EmailField()    def __str__(self):        return  "<%s>"%(self.first_name)class  Publisher(models.Model):    name = models.CharField(max_length=32,unique=True)    address = models.CharField(max_length=128)    city = models.CharField(max_length=32)    web_site = models.URLField()    date = models.DateField()    def __str__(self):        return "<%s>"%(self.name)class Books(models.Model):    name = models.CharField(max_length=32)    authors = models.ManyToManyField(Author)    publishers = models.ForeignKey(Publisher,on_delete=models.CASCADE)    publish_date = models.DateField()    status_choice = (('published', u'已出版'),  #定义一个可选择的框，前提下面必须定义一个默认值              ('producing', u'待出版'),              ('forbidden', u'禁书'),              )    status = models.CharField(choices=status_choice,max_length=32,default='producing')    def __str__(self):        return "<%s>"%(self.name)    def color_set(self):        if self.status == "published":            f_html = format_html('已出版')        elif self.status == "producing":            f_html = format_html('待出版')        else:            f_html =format_html('禁书')        return f_html    color_set.short_description = "status"

然后进入mysite目录执行命令来创建数据库表

python  manage.py  makemigrationspython  manage.py   migrate

打开admin开始定制页面

from django.contrib import admin# Register your models here.from . import  modelsdef make_forbiddend(modeladmin,request,queryset):    queryset.update(status='forbidden')make_forbiddend.short_description = "设置所选为禁书"def  make_producding(modeladmin,request,queryset):    queryset.update(status='producing')make_producding.short_description = "设置所选为待出版"def make_published(modeladmin,request,queryset):    queryset.update(status='published')make_published.short_description = "设置所选为已出版"class BookAdmin(admin.ModelAdmin):  #定制book方法    list_display = ('id',"name",'publishers','publish_date','color_set','status')  #指定要显示的子项    list_editable = ("status",)       #指定哪些选项可以编辑    filter_horizontal = ('authors',)   #只对多对多关系选项    actions = ( make_producding,make_forbiddend,make_published)   #在action里所要列出的动作，在上面定义funcclass authorAdmin(admin.ModelAdmin):    list_display = ("first_name",'last_name','email')class publishAdmin(admin.ModelAdmin):    list_display = ('id','name','address','city','web_site','date')    search_fields = ("name",'city')  #定义一个搜索框，索引以name或者city    list_filter = ('name','city','web_site')   #在右边显示全部过滤    list_editable = ('address','city','date')  #可以在页面直接修改数据    list_per_page = 5                             #每页显示几行admin.site.register(models.UserInfo)    #把指定的方法注册给admin后台可管理admin.site.register(models.Author,authorAdmin)admin.site.register(models.Publisher,publishAdmin)admin.site.register(models.Books,BookAdmin)    #把定制好的方法写后面生效

启动服务python manage.py runserver

访问后面127.0.0.1:8000/admin