从一个JSON字符串[鹡鸰CMS]

Question

我有下面的输出模板渲染图像？

Answer 1

上的expand_db_attributes方法会翻译您要找的内容。打包作为一个模板标签（请以适合自己使用情况调整 - 它看起来像你已经有了Python字典那里，而不是一个JSON字符串）：

import json 
from django.utils.html import escape 
from wagtail.wagtailimages.rich_text import ImageEmbedHandler 


register = template.Library() 

@register.simple_tag 
def json_to_image(json_string): 
    data = json.loads(json_string) 

    # expand_db_attributes expects to receive HTML-escaped attributes, 
    # so explicitly escape the alt attribute here (assuming it's not already 
    # escaped in your json) 
    data['value']['alt'] = escape(data['value']['alt']) 

    return ImageEmbedHandler.expand_db_attributes(data['value'], False)