def do_send_message(receiver_ids, sender_id, content, item_id=None):
"""
Send message to one or more followers.
"""
if len(receiver_ids) == 0:
return "收件人为空，或没有关注你！"
if not content.strip() and not item_id:
return "发送内容不能为空！"
if len(content) > 500:
return "回复内容不能超过500个字符。"
for receiver_id in receiver_ids:
receiver_id = long(receiver_id)
try:
receiver = Profile.objects.get(pk=receiver_id)
if receiver_id != sender_id:
User_User.objects.get(follower=receiver_id, followed=sender_id)
message = Message(content=content, date=datetime.datetime.now())
message.receiver_id = receiver_id
message.sender_id = sender_id
if item_id:
message.item_id = item_id
message.save()
receiver.message_count += 1
receiver.save()
except Profile.DoesNotExist:
return "收件人不存在！"
except User_User.DoesNotExist:
return "收件人" + receiver.name + "没有关注你，不能发站内信哦！"
return "success"
