migrations/20230812111348_orphan_reminders.sql

@@ -0,0 +1,21 @@
+-- Drop existing constraint
+-- TODO
+ALTER TABLE `reminders` DROP CONSTRAINT `channel_id_`
+
+ALTER TABLE `reminders` MODIFY COLUMN `channel_id` BIGINT ;
+ALTER TABLE `reminders` ADD COLUMN `guild_id` BIGINT;
+
+ALTER TABLE `reminders`
+    ADD CONSTRAINT `guild_id_fk`
+        FOREIGN KEY (`guild_id`)
+        REFERENCES `guilds`(`id`)
+        ON DELETE CASCADE;
+
+ALTER TABLE `reminders`
+    ADD CONSTRAINT `channel_id_fk`
+        FOREIGN KEY (`channel_id`)
+        REFERENCES `channels`(`id`)
+        ON DELETE SET NULL;
+
+-- TODO
+UPDATE `reminders` SET `guild_id` = (SELECT guilds.`id` FROM `channels` INNER JOIN `guilds` ON channels.guild_id = guilds.id WHERE )