private-messaging | 易学教程

Is it possible to check if user have PM's enabled?

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问题 I'd like to know if there is a way to check if a User have Private Messages Enabled. This Feature is for an Support Bot. Currently I use the GuildMessageRecievedEvent and send a Private Message to the User. 回答1: No, there is not. You can only send a message and handle the failure: user.openPrivateChannel().submit() .thenCompose(channel -> channel.sendMessage(x).submit()) .whenComplete((message, error) -> { if (error != null) failed(); else success(); }); This is also shown as an example in

Is it possible to check if user have PM's enabled?

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MySql SELECT only newest message from distinct threads order by timestamp -Private Messages Inbox Similar to Facebooks(2013)

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问题 Trying to recreate a private message system similar to what Facebooks setup these days. The part im having a problem with is SELECT only newest message from distinct threads order by timestamp. Here is the closest query I could come up with so far. The problem is the inbox should only return one row for each thread and currently my query returns multiple rows from the same thread: SELECT m.created_on, m.thread_id, m.message_id, m.created_by, m.body, u.first_name, u.last_name, u.thumb_img FROM

Show username on Mailboxer inbox in Rails

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问题 I'm using the Mailboxer (https://github.com/ging/mailboxer) gem in my Rails app to handle private messages between users. As per the documentation, I'm using = render mailbox.inbox to show a list of all conversations (messages) for the logged-in user. However, the method only outputs the subject of the message. I need to show the sender of the message along with the subject. How can I edit this output so that the sender name is displayed? The SQL table shows that the sender name is not stored

private message database design

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问题 I'm creating a simple private message system and I'm no sure which database design is better. The first design is a table for messages, and a table for message comments: Message --------------- id recipientId senderId title body created_at MessageComment --------------- id messageId senderId body created_at the second design, is one table for both messages and comments, and an addition field messageId so i'll be able to chain messages as comments. Message --------------- id recipientId

private message database design

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I'm creating a simple private message system and I'm no sure which database design is better. The first design is a table for messages, and a table for message comments: Message --------------- id recipientId senderId title body created_at MessageComment --------------- id messageId senderId body created_at the second design, is one table for both messages and comments, and an addition field messageId so i'll be able to chain messages as comments. Message --------------- id recipientId senderId messageId title body created_at I'd like to hear your opinion! In this case, I'd vote for one table.

instant messenger implementation for rails?

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问题 I have searched for some time investigating several technologies to build an simple instant messaging system for a ruby on rails app. It seems very complicated as I haven't found any implementations that are cross browser or any 1-1 proof of concept at all. Looked into: xmpp clients ( there is Candy on github only supports group chat ) xmpp servers & Rails ( lot of hassle no good integration ) Juggernaut ( no 1-1 , not supported by Internet Explorer cause of web sockets used) Private Pub by