Added owner id to comment categories.

database/2020_05_30_142750_add_owner_id_to_comments.php

@@ -0,0 +1,26 @@
+<?php
+namespace Misuzu\DatabaseMigrations\AddOwnerIdToComments;
+
+use PDO;
+
+function migrate_up(PDO $conn): void {
+    $conn->exec("
+        ALTER TABLE `msz_comments_categories`
+            ADD COLUMN `owner_id` INT UNSIGNED NULL DEFAULT NULL AFTER `category_name`,
+            ADD INDEX `comments_categories_owner_foreign` (`owner_id`),
+            ADD CONSTRAINT `comments_categories_owner_foreign`
+                FOREIGN KEY (`owner_id`)
+                REFERENCES `msz_users` (`user_id`)
+                ON UPDATE CASCADE
+                ON DELETE SET NULL;
+    ");
+}
+
+function migrate_down(PDO $conn): void {
+    $conn->exec("
+        ALTER TABLE `msz_comments_categories`
+            DROP COLUMN `owner_id`,
+            DROP INDEX `comments_categories_owner_foreign`,
+            DROP FOREIGN KEY `comments_categories_owner_foreign`;
+    ");
+}