"""
class MPTTMeta:
order_insertion_by = ['title']
def __unicode__(self): return self.title
def __str__(self): # 循环查找父菜单返回字符串 self-parent-parent
title_list = [self.title,]
p = self.parent
while p:
# caption_list.append(p.caption)
title_list.insert(0,p.title)
p = p.parent
return "-".join(title_list)
"""
drf 树菜单返回
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转载自blog.csdn.net/sinat_33384251/article/details/88545008
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