Moved passwords out of the users table.

database/2025_02_08_235046_moved_passwords_out_of_the_user_table.php

@@ -0,0 +1,33 @@
+<?php
+use Index\Db\DbConnection;
+use Index\Db\Migration\DbMigration;
+
+final class MovedPasswordsOutOfTheUserTable_20250208_235046 implements DbMigration {
+    public function migrate(DbConnection $conn): void {
+        $conn->execute(<<<SQL
+            CREATE TABLE msz_users_passwords (
+                user_id          INT(10) UNSIGNED NOT NULL,
+                password_hash    VARCHAR(255)     NOT NULL COLLATE 'ascii_bin',
+                password_created TIMESTAMP        NOT NULL DEFAULT current_timestamp(),
+                PRIMARY KEY (user_id),
+                CONSTRAINT users_passwords_users_foreign
+                    FOREIGN KEY (user_id)
+                    REFERENCES msz_users (user_id)
+                    ON UPDATE CASCADE
+                    ON DELETE CASCADE
+            ) COLLATE='utf8mb4_bin';
+        SQL);
+
+        $conn->execute(<<<SQL
+            INSERT msz_users_passwords
+            SELECT user_id, user_password, NOW()
+            FROM msz_users
+            WHERE user_password IS NOT NULL AND TRIM(user_password) <> ''
+        SQL);
+
+        $conn->execute(<<<SQL
+            ALTER TABLE msz_users
+                DROP COLUMN user_password;
+        SQL);
+    }
+}