public async Task <bool> Exists(ulong serverId, ulong channelId)
{
using (var conn = new MySqlConnection(this.connectionString))
{
await conn.OpenAsync();
using (var cmd = new MySqlCommand($@"SELECT count(*) FROM discord_chat_channel_servers d
JOIN servers s on d.server_id = s.id", conn))
{
return((await cmd.GetCount()) == 1);
}
}
}
public async Task <bool> Exists(Server server, ulong channelId)
{
using (var conn = new MySqlConnection(this.connectionString))
{
await conn.OpenAsync();
using (var cmd = new MySqlCommand())
{
cmd.Connection = conn;
cmd.CommandText = @"SELECT COUNT(*) FROM subscribed_servers ss
WHERE ss.server_id = @server_id AND ss.channel_id = @cid";
cmd.Parameters.AddWithValue("server_id", server.Id);
cmd.Parameters.AddWithValue("cid", channelId);
return((await cmd.GetCount()) == 1);
}
}
}
public async Task <bool> Exists(string ip, int port, ulong channelId)
{
using (var conn = new MySqlConnection(this.connectionString))
{
await conn.OpenAsync();
using (var cmd = new MySqlCommand())
{
cmd.Connection = conn;
cmd.CommandText = "SELECT COUNT(*) FROM subscribed_servers ss" +
" JOIN servers s on ss.server_id = s.id" +
" WHERE s.server_ip = @ip AND s.server_port = @port AND ss.channel_id = @cid ";
cmd.Parameters.AddWithValue("ip", ip);
cmd.Parameters.AddWithValue("port", port);
cmd.Parameters.AddWithValue("cid", channelId);
return((await cmd.GetCount()) == 1);
}
}
}