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方式一：class UserAdmin(admin.ModelAdmin):list_display = ('user', 'pwd',)admin.site.register(models.UserInfo, UserAdmin) # 第一个参数可以是列表
     方式二：@admin.register(models.UserInfo)                # 第一个参数可以是列表class UserAdmin(admin.ModelAdmin):list_display = ('user', 'pwd',)
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ModelAdmin中提供了大量的可定制功能，如1. list_display，列表时，定制显示的列。@admin.register(models.UserInfo)
class UserAdmin(admin.ModelAdmin):list_display = ('user', 'pwd', 'xxxxx')def xxxxx(self, obj):return "xxxxx"
2. list_display_links，列表时，定制列可以点击跳转。@admin.register(models.UserInfo)
class UserAdmin(admin.ModelAdmin):list_display = ('user', 'pwd', 'xxxxx')list_display_links = ('pwd',)
3. list_filter，列表时，定制右侧快速筛选。4. list_select_related，列表时，连表查询是否自动select_related5. list_editable，列表时，可以编辑的列 @admin.register(models.UserInfo)
class UserAdmin(admin.ModelAdmin):list_display = ('user', 'pwd','ug',)list_editable = ('ug',)
6. search_fields，列表时，模糊搜索的功能@admin.register(models.UserInfo)
class UserAdmin(admin.ModelAdmin):search_fields = ('user', 'pwd')
7. date_hierarchy，列表时，对Date和DateTime类型进行搜索@admin.register(models.UserInfo)
class UserAdmin(admin.ModelAdmin):date_hierarchy = 'ctime'
8  inlines，详细页面，如果有其他表和当前表做FK，那么详细页面可以进行动态增加和删除复制代码
class UserInfoInline(admin.StackedInline): # TabularInlineextra = 0model = models.UserInfoclass GroupAdminMode(admin.ModelAdmin):list_display = ('id', 'title',)inlines = [UserInfoInline, ]
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9 action，列表时，定制action中的操作复制代码
@admin.register(models.UserInfo)
class UserAdmin(admin.ModelAdmin):# 定制Action行为具体方法def func(self, request, queryset):print(self, request, queryset)print(request.POST.getlist('_selected_action'))func.short_description = "中文显示自定义Actions"actions = [func, ]# Action选项都是在页面上方显示actions_on_top = True# Action选项都是在页面下方显示actions_on_bottom = False# 是否显示选择个数actions_selection_counter = True
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10 定制HTML模板add_form_template = None
change_form_template = None
change_list_template = None
delete_confirmation_template = None
delete_selected_confirmation_template = None
object_history_template = None
11 raw_id_fields，详细页面，针对FK和M2M字段变成以Input框形式@admin.register(models.UserInfo)
class UserAdmin(admin.ModelAdmin):raw_id_fields = ('FK字段', 'M2M字段',)
12  fields，详细页面时，显示字段的字段@admin.register(models.UserInfo)
class UserAdmin(admin.ModelAdmin):fields = ('user',)
13 exclude，详细页面时，排除的字段@admin.register(models.UserInfo)
class UserAdmin(admin.ModelAdmin):exclude = ('user',)
14  readonly_fields，详细页面时，只读字段@admin.register(models.UserInfo)
class UserAdmin(admin.ModelAdmin):readonly_fields = ('user',)
15 fieldsets，详细页面时，使用fieldsets标签对数据进行分割显示复制代码
@admin.register(models.UserInfo)
class UserAdmin(admin.ModelAdmin):fieldsets = (('基本数据', {'fields': ('user', 'pwd', 'ctime',)}),('其他', {'classes': ('collapse', 'wide', 'extrapretty'),  # 'collapse','wide', 'extrapretty''fields': ('user', 'pwd'),}),)
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16 详细页面时，M2M显示时，数据移动选择（方向：上下和左右）@admin.register(models.UserInfo)
class UserAdmin(admin.ModelAdmin):filter_vertical = ("m2m字段",) # 或filter_horizontal = ("m2m字段",)
17 ordering，列表时，数据排序规则@admin.register(models.UserInfo)
class UserAdmin(admin.ModelAdmin):ordering = ('-id',)或def get_ordering(self, request):return ['-id', ]
18. radio_fields，详细页面时，使用radio显示选项（FK默认使用select）radio_fields = {"ug": admin.VERTICAL} # 或admin.HORIZONTAL
19 form = ModelForm，用于定制用户请求时候表单验证复制代码
from app01 import models
from django.forms import ModelForm
from django.forms import fieldsclass MyForm(ModelForm):others = fields.CharField()class Meta:model = models = models.UserInfofields = "__all__"@admin.register(models.UserInfo)
class UserAdmin(admin.ModelAdmin):form = MyForm
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20 empty_value_display = "列数据为空时，显示默认值"复制代码
@admin.register(models.UserInfo)
class UserAdmin(admin.ModelAdmin):empty_value_display = "列数据为空时，默认显示"list_display = ('user','pwd','up')def up(self,obj):return obj.userup.empty_value_display = "指定列数据为空时，默认显示"
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from django.contrib import admin# Register your models here.from .models import *class BookInline(admin.StackedInline): # TabularInlineextra = 0model = Bookclass BookAdmin(admin.ModelAdmin):list_display = ("title",'publishDate', 'price',"foo","publisher")list_display_links = ('publishDate',"price")list_filter = ('price',)list_editable=("title","publisher")search_fields = ('title',)date_hierarchy = 'publishDate'preserve_filters=Falsedef foo(self,obj):return obj.title+str(obj.price)# 定制Action行为具体方法def func(self, request, queryset):print(self, request, queryset)print(request.POST.getlist('_selected_action'))func.short_description = "中文显示自定义Actions"actions = [func, ]# Action选项都是在页面上方显示actions_on_top = True# Action选项都是在页面下方显示actions_on_bottom = False# 是否显示选择个数actions_selection_counter = Truechange_list_template="my_change_list_template.html"class PublishAdmin(admin.ModelAdmin):list_display = ('name', 'email',)inlines = [BookInline, ]admin.site.register(Book, BookAdmin) # 第一个参数可以是列表
admin.site.register(Publish,PublishAdmin)
admin.site.register(Author)

# mysingleton.py
class My_Singleton(object):def foo(self):passmy_singleton = My_Singleton()

from mysingleton import my_singletonmy_singleton.foo()