Python学习第137天（admin部分参数补充）

课程看了很久才发现换了个老师还在讲昨天的内容，浪费时间啊

重新说一遍，按照这个老师的思路，再练习一次吧

一、启用admin：

你用startproject命令创建项目时django admin就默认启用了

For reference, here are the requirements:

1. Add 'django.contrib.admin' to your INSTALLED_APPS setting.
2. The admin has four dependencies - django.contrib.auth, django.contrib.contenttypes, django.contrib.messages and django.contrib.sessions. If these applications are not in your INSTALLED_APPS list, add them.
3. Add django.contrib.auth.context_processors.auth and django.contrib.messages.context_processors.messages to the 'context_processors' option of the DjangoTemplates backend defined in your TEMPLATES as well as django.contrib.auth.middleware.AuthenticationMiddleware and django.contrib.messages.middleware.MessageMiddleware to MIDDLEWARE. These are all active by default, so you only need to do this if you’ve manually tweaked the settings.
4. Determine which of your application’s models should be editable in the admin interface.

admin 访问地址

http://localhost:yourport/admin/, by default.

然后是补充的一些内容

fieldsets 分组显示

class ArticleAdmin(admin.ModelAdmin):
    list_display = ('title','pub_date','account','read_count')
    date_hierarchy = 'pub_date'
 
    fieldsets = (('文章相关',{
        'fields':('title','content'),
        'classes': ('wide', 'extrapretty'),
    }),('高级',{
        'classes':('collapse',),
        'fields':(('account','read_count'),'pub_date')
    }))

上面的classes 是用于设定字段样式，2个默认自带的样式是collapse 和wide

filter_horizontal，filter_vertical 均用于多对多字段 

filter_horizontal = ['tags',]

 

list_display  定义表数据显示哪些列

除了表中有的字段，models自己定义的字段也能放入list_display

from django.db import models
from django.contrib import admin
 
class Person(models.Model):
    name = models.CharField(max_length=50)
    birthday = models.DateField()
 
    def decade_born_in(self):
        return self.birthday.strftime('%Y')[:3] + "0's"
    decade_born_in.short_description = 'Birth decade'
 
class PersonAdmin(admin.ModelAdmin):
    list_display = ('name', 'decade_born_in')

甚至还能玩出花样

from django.utils.html import format_html
<br>class Tag(models.Model):
    """文章标签表"""
    name = models.CharField(max_length=64,unique=True)
    date = models.DateTimeField(auto_now_add=True)
    color_code = models.CharField(max_length=6)
 
    def colored_name(self):
        return format_html(
            '<span style="color: #{};">{}</span>',
            self.color_code,
            self.name,
        )
 
    def __str__(self):
        return self.name

class TagAdmin(admin.ModelAdmin):
    list_display = ['name','colored_name']

list_display_links = ('first_name', 'last_name') 点下这2个字段就跳到修改页

list_filter 过滤,把要过滤的字段放到对应列表里就可以

radio_fields 把外键或choice字段由下拉框变成单选框

class ArticleAdmin(admin.ModelAdmin):
    list_display = ('title','pub_date','account','read_count')
    date_hierarchy = 'pub_date'
    filter_horizontal = ['tags',]
    radio_fields = {'account': admin.VERTICAL}

 

自动补全

autocomplete_fields = ['account',] 自动补全，外键查询数据多时，方便查找　　

raw_id_fields  言语无法表示的字段

就把外键变成这样子

 readonly_fields = ('address_report',)  只读字段

search_fields  模糊查找

补充的好像就是这些，蛮多的，明天要出差，就拿来好好练习吧。