##django admin的使用
#1.在应用下amdin.py中注册你的模型表 from django.contrib import admin from app01 import models # Register your models here. # print('from app01 admin') class BookConfig(admin.ModelAdmin):#需要继承ModelAdmin类，该类中有很多默认参数 list_display = ['title','price','publish_date','publish'] list_display_links = ['title','price'] search_fields = ['title','price'] list_filter = ['publish','authors'] def patch_init(self,request,queryset): queryset.update(price=666) patch_init.short_description = '价格批量修改' actions = [patch_init] admin.site.register(models.Book,BookConfig) admin.site.register(models.Publish) admin.site.register(models.Author) admin.site.register(models.AuthorDetail) print(admin.site._registry) #2.admin url的规律 http://127.0.0.1:8000/admin/app01/book/ book表的查看 http://127.0.0.1:8000/admin/app01/book/add/ book表的添加 http://127.0.0.1:8000/admin/app01/book/3/change/ book表的编辑 http://127.0.0.1:8000/admin/app01/book/3/delete/ book表的删除页面 http://127.0.0.1:8000/admin/app01/publish/ publish表的查看 http://127.0.0.1:8000/admin/app01/publish/add/ publish表的添加 http://127.0.0.1:8000/admin/app01/publish/3/change/ publish表的编辑 http://127.0.0.1:8000/admin/app01/publish/3/delete/ publish表的删除页面 ps: 1.admin会给每一个注册了的生成增删改查四条url 五大关键性参数的功能 1、list_display 控制展示字段 注意不能放多对多字段 2、list_display_links：控制跳转字段 3、search_fields：或查询 如查询框输入xxx 会在列出的字段以或的方式进行查询含有xxx的所有信息 4、list_filter：建议放外键字段 用来做过滤并且上下时与的关系 5、批量处理函数 def patch_init(self,request,queryset): queryset.update(price=666) patch_init.short_description = '价格批量修改' actions = [patch_init] #3、配置类的概念 class BookConfig(admin.ModelAdmin):
##admin中五大关键性参数的功能
##admin注册源码
class ModelAdmin(BaseModelAdmin): ... # 配置类 class AdminSite(object): def __init__(self, name='admin'): self._registry = {} # model_class class -> admin_class instance def register(self, model, admin_class=None, **options): """ Registers the given model(s) with the given admin class. The model(s) should be Model classes, not instances. If an admin class isn't given, it will use ModelAdmin (the default admin options). If keyword arguments are given -- e.g., list_display -- they'll be applied as options to the admin class. If a model is already registered, this will raise AlreadyRegistered. If a model is abstract, this will raise ImproperlyConfigured. """ if not admin_class: admin_class = ModelAdmin # Instantiate the admin class to save in the registry self._registry[model] = admin_class(model) site = AdminSite() admin.py注册语句 admin.site.register(models.Publish) # 仅仅是将注册了的模型表和以模型表为参数实例化产生的对象 # 当做键值对存入了site对象中的_registry字典中 print(admin.site._registry) 打印结果：默认存在两张表 """ { <class 'django.contrib.auth.models.Group'>: <django.contrib.auth.admin.GroupAdmin object at 0x000001A7689CE438>, <class 'django.contrib.auth.models.User'>: <django.contrib.auth.admin.UserAdmin object at 0x000001A768A03908>, <class 'app01.models.Book'>: <app01.admin.BookConfig object at 0x000001A768A03978>, <class 'app01.models.Publish'>: <django.contrib.admin.options.ModelAdmin object at 0x000001A768A1A400>, <class 'app01.models.Author'>: <django.contrib.admin.options.ModelAdmin object at 0x000001A768A1A518>, <class 'app01.models.AuthorDetail'>: <django.contrib.admin.options.ModelAdmin object at 0x000001A768A1A550> } """
##路由分发的本质
#之前学得路由分发 include（） #路由分发的本质 url(r'^test/',([],None,None)) 一级分发 url(r'^index/',([ url(r'^test1/',test1), url(r'^test2/',test2), ],None,None)) 二级分发 url(r'^index/',([ url(r'^test1/',([ url(r'^test1_1/',test3), url(r'^test1_2/',test4), url(r'^test1_3/',test5), url(r'^test1_4/',test6), ],None,None)), url(r'^test2/',test2), ],None,None)) #分析默认admin url url(r'^admin/', admin.site.urls),#site是一个对象 点urls不是一个属性而是一个被property修饰过的方法，所以可以直接点就可以 def get_urls(self): urlpatterns = [ url(r'^$', wrap(self.index), name='index'), url(r'^login/$', self.login, name='login'), url(r'^logout/$', wrap(self.logout), name='logout'), url(r'^password_change/$', wrap(self.password_change, cacheable=True), name='password_change'), url(r'^password_change/done/$', wrap(self.password_change_done, cacheable=True), name='password_change_done'), url(r'^jsi18n/$', wrap(self.i18n_javascript, cacheable=True), name='jsi18n'), url(r'^r/(?P<content_type_id>\d+)/(?P<object_id>.+)/$', wrap(contenttype_views.shortcut), name='view_on_site'), ] return urlpatterns @property def urls(self): return self.get_urls(), 'admin', self.name
#上面这句话可以理解为路有本质：return [],None,None
