def do_reply(receiver_id, reply_to_id, sender_id, content):
"""Reply a message"""
if not content.strip():
return "回复内容不能为空！"
if len(content) > 500:
return "回复内容不能超过500个字符。" # The best way is check in browser using js
try:
receiver = Profile.objects.get(pk=receiver_id)
main_msg = Message.objects.get(pk=reply_to_id)
if main_msg.sender_id != sender_id and main_msg.receiver_id != sender_id:
return "回复失败"
new_message = Message(content=content, date=datetime.datetime.now())
new_message.receiver_id = receiver_id
new_message.sender_id = sender_id
new_message.reply_to_id = reply_to_id
new_message.save()
if main_msg.deleted_by_receiver:
count = Message.objects.filter(receiver=receiver_id, unread=True, reply_to=Message(reply_to_id)).count()
if main_msg.unread:
count += 1
receiver.message_count += count
receiver.save()
main_msg.deleted_by_receiver = False
elif main_msg.deleted_by_sender:
count = Message.objects.filter(receiver=receiver_id, unread=True, reply_to=Message(reply_to_id)).count()
receiver.message_count += count
receiver.save()
main_msg.deleted_by_sender = False
else:
receiver.message_count += 1
receiver.save()
main_msg.save()
Message.objects.filter(reply_to=Message(reply_to_id)).update(deleted_by_receiver=False, deleted_by_sender=False)
return "success"
except Profile.DoesNotExist:
return "收件人不存在！"
except Message.DoesNotExist:
return "回复的信件不存在！"
