注册Model

from django.contrib import admin
@admin.register(Article)
class ArticleAdmin(admin.ModelAdmin):
    # 列表页显示的字段
    list_display = ['id', 'title', 'category', 'create_time']
    # 搜索字段
    search_fields = ['title']
    # 过滤器字段
    list_filter = ['category']
    # 排除字段
    exclude = ['read']
    # 列表页面连接字段
    list_display_links = ['id', 'title']
    # 排序
    ordering = ['-id']
    # 指定Form
    form = ArticleForm
    fields = ('title', ('reader', 'url')) # form显示字段 （同一行显示）

添加自定义字段

from django.contrib import admin
@admin.register(Category)
class CategoryAdmin(admin.ModelAdmin):
    list_display = ['id', 'title', 'parent', 'ico_img']
    readonly_fields = ['ico_img']
    list_display_links = ['id', 'title']
    ordering = ['id']
    def ico_img(self, obj):
        if obj.ico:
            return mark_safe('<img src="%s" width="30px" />' % obj.ico.url)
    ico_img.short_description = '图标显示'

自定义过滤器

使用字段过滤器

from django.contrib import admin
from django.utils.translation import gettext_lazy as _
class ArticleFilter(admin.SimpleListFilter):
    title = _('分类')  # 过滤器的显示名字
    parameter_name = 'category'  # url显示的参数名
    def lookups(self, request, model_admin):
        """
        必须重写的方法
        返回list 或 tuple  
        (('值', '显示名字'), ...)
        """
        print(request)
        print(model_admin)
        pid_list = []
        res = Category.objects.filter(parent__isnull=False).values_list('parent_id')
        if res:
            pid_list = list(zip(*res))[0]
        f_list = Category.objects.exclude(id__in=pid_list).values_list('id', 'title')
        return f_list
    def queryset(self, request, queryset):
        """
        必须重写的方法
        返回过滤后的querset
        self.value() 用户选择的过滤器的值
        不返回则所有数据
        """
        if self.value():
            return queryset.filter(category=self.value())