import json

from django.contrib import admin

from django.utils.safestring import mark_safe

from yourapp.models import YourModel

@admin.register(YourModel)  # 注册模型到admin站点中

class YourAdmin(admin.ModelAdmin):

    ...

    # 自定义一个字段

    def image_url(self, obj):

        image = obj.image

        if fb_img:

            image_html = ""

            for img_url in json.loads(image):

                artwork = ".".join(img_url.split(".")[0:-2])

                # 根据业务需求, 拿到所有图片的url, 拼接 img 及 a 标签

                image_html += '<a href="{}" target="_blank"><img src="{}" style="width:200px; height:200px; margin-right:2.5px; margin-left:2.5px; margin-bottom:5px"/></a>'.format(artwork, img_url)

            html = "<div>" + image_html + "</div><div>提示: 点击图片查看原图</div>"

        else:

            html = "-"

        return mark_safe(html)  # 取消转义

    image_url.short_description = "反馈图片"

    image_url.allow_tags = True

    # 重写编辑页, 继承父类方法

    def change_view(self, request, object_id, extra_context=None):

        self.fields = ("name", "created", "content", "image_url")  # 将自定义的字段注册到编辑页中

        self.readonly_fields = ("name", "created", "image_url")  # 务必将该字段设置为仅限可读, 否则抛出异常

        return super(YourAdmin, self).change_view(request, object_id, extra_context=extra_context)