如何通过 Django 管理员的list_display跳转到相关的模型对象？

Question

我确实有一个通过FK关系与模型Poller相关的模型Comment。有没有办法我可以跳转到这个相关的对象通过Django管理界面从评论的概述?

# Models.py
class Comment(models.Model):
"""
A Class for comments made by users to a specific Poller
"""
poller = models.ForeignKey(Poller, on_delete=models.CASCADE, related_name='PollerComment')
user = models.ForeignKey(Account, on_delete=models.CASCADE)
vote = models.ForeignKey(Vote, on_delete=models.CASCADE)

# Admin.py
@admin.register(Comment)
class PollerCommentAdmin(admin.ModelAdmin):
list_display = ('user', 'created_on', 'poller', 'comment', 'flag_count', 'upvote_count',
'downvote_count', 'is_public', 'is_removed')

现在我想使' polller '列可点击，然后将我重定向到管理中的此轮询器对象。

Answer 1

您需要将list_display中的poller替换为返回所需链接的自定义方法。

from django.utils.safestring import mark_safe
# [...]
@admin.register(Comment)
class PollerCommentAdmin(admin.ModelAdmin):
list_display = (
'user', 'created_on', 'get_poller_link', 'comment', 'flag_count',
'upvote_count','downvote_count', 'is_public', 'is_removed'
)
def get_poller_link(self, obj):
# assuming poller is in the same app...
return mark_safe('<a href="../poller/%s">%s</a>' % (obj.poller_id, obj.poller)
get_poller_link.short_description = "Header to display"
get_poller_link.admin_order_field = 'poller_id' # or another