def _bulk_flag(self, queryset, action, done_message):
"""
Flag, approve, or remove some comments from an admin action. Actually
calls the `action` argument to perform the heavy lifting.
"""
n_comments = 0
for comment in queryset:
action(self.request, comment)
n_comments += 1
msg = ungettext('1 comment was successfully %(action)s.',
'%(count)s comments were successfully %(action)s.',
n_comments)
self.message_user(msg % {'count': n_comments, 'action': done_message(n_comments)}, 'success')
# Only register the default admin if the model is the built-in comment model
# (this won't be true if there's a custom comment app).
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