sharp-chat/SharpChatCommon/EventStorage/MariaDBEventStorage_Migrations.cs

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using MySqlConnector;
using System;
namespace SharpChat.EventStorage {
public partial class MariaDBEventStorage {
private void DoMigration(string name, Action action) {
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bool done = (long?)RunQueryValue(
"SELECT COUNT(*) FROM `sqc_migrations` WHERE `migration_name` = @name",
new MySqlParameter("name", name)
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) > 0;
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if(!done) {
Logger.Write($"Running migration '{name}'...");
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action();
RunCommand(
"INSERT INTO `sqc_migrations` (`migration_name`) VALUES (@name)",
new MySqlParameter("name", name)
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);
}
}
public void RunMigrations() {
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RunCommand(
"CREATE TABLE IF NOT EXISTS `sqc_migrations` ("
+ "`migration_name` VARCHAR(255) NOT NULL,"
+ "`migration_completed` TIMESTAMP NOT NULL DEFAULT current_timestamp(),"
+ "UNIQUE INDEX `migration_name` (`migration_name`),"
+ "INDEX `migration_completed` (`migration_completed`)"
+ ") COLLATE='utf8mb4_unicode_ci' ENGINE=InnoDB;"
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);
DoMigration("create_events_table", CreateEventsTable);
DoMigration("allow_null_target", AllowNullTarget);
DoMigration("update_event_type_names", UpdateEventTypeNames);
}
private void UpdateEventTypeNames() {
RunCommand(@"UPDATE sqc_events SET event_type = ""msg:add"" WHERE event_type = ""SharpChat.Events.ChatMessage""");
RunCommand(@"UPDATE sqc_events SET event_type = ""user:connect"" WHERE event_type = ""SharpChat.Events.UserConnectEvent""");
RunCommand(@"UPDATE sqc_events SET event_type = ""user:disconnect"" WHERE event_type = ""SharpChat.Events.UserDisconnectEvent""");
RunCommand(@"UPDATE sqc_events SET event_type = ""chan:join"" WHERE event_type = ""SharpChat.Events.UserChannelJoinEvent""");
RunCommand(@"UPDATE sqc_events SET event_type = ""chan:leave"" WHERE event_type = ""SharpChat.Events.UserChannelLeaveEvent""");
}
private void AllowNullTarget() {
RunCommand(
"ALTER TABLE `sqc_events`"
+ " CHANGE COLUMN `event_target` `event_target` VARBINARY(255) NULL AFTER `event_type`;"
);
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}
private void CreateEventsTable() {
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RunCommand(
"CREATE TABLE `sqc_events` ("
+ "`event_id` BIGINT(20) NOT NULL,"
+ "`event_sender` BIGINT(20) UNSIGNED NULL DEFAULT NULL,"
+ "`event_sender_name` VARCHAR(255) NULL DEFAULT NULL,"
+ "`event_sender_colour` INT(11) NULL DEFAULT NULL,"
+ "`event_sender_rank` INT(11) NULL DEFAULT NULL,"
+ "`event_sender_nick` VARCHAR(255) NULL DEFAULT NULL,"
+ "`event_sender_perms` INT(11) NULL DEFAULT NULL,"
+ "`event_created` TIMESTAMP NOT NULL DEFAULT current_timestamp(),"
+ "`event_deleted` TIMESTAMP NULL DEFAULT NULL,"
+ "`event_type` VARBINARY(255) NOT NULL,"
+ "`event_target` VARBINARY(255) NOT NULL,"
+ "`event_flags` TINYINT(3) UNSIGNED NOT NULL,"
+ "`event_data` BLOB NULL DEFAULT NULL,"
+ "PRIMARY KEY (`event_id`),"
+ "INDEX `event_target` (`event_target`),"
+ "INDEX `event_type` (`event_type`),"
+ "INDEX `event_sender` (`event_sender`),"
+ "INDEX `event_datetime` (`event_created`),"
+ "INDEX `event_deleted` (`event_deleted`)"
+ ") COLLATE='utf8mb4_unicode_ci' ENGINE=InnoDB;"
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);
}
}
}