Primer version funcional

models/UserPermission.php

@@ -0,0 +1,42 @@
+<?php
+
+class UserPermission {
+    public static function getUserHouses($userId) {
+        $db = Database::getInstance();
+        return $db->fetchAll(
+            "SELECT h.* FROM houses h 
+             INNER JOIN user_house_permissions uhp ON h.id = uhp.house_id
+             WHERE uhp.user_id = ? ORDER BY CAST(h.number AS UNSIGNED)",
+            [$userId]
+        );
+    }
+
+    public static function getUserHouseIds($userId) {
+        $db = Database::getInstance();
+        $result = $db->fetchAll(
+            "SELECT house_id FROM user_house_permissions WHERE user_id = ?",
+            [$userId]
+        );
+        return array_column($result, 'house_id');
+    }
+
+    public static function assignHousesToUser($userId, $houseIds) {
+        $db = Database::getInstance();
+        $db->execute("DELETE FROM user_house_permissions WHERE user_id = ?", [$userId]);
+
+        foreach ($houseIds as $houseId) {
+            $db->execute(
+                "INSERT INTO user_house_permissions (user_id, house_id) VALUES (?, ?)",
+                [$userId, $houseId]
+            );
+        }
+    }
+
+    public static function removeUserFromHouse($userId, $houseId) {
+        $db = Database::getInstance();
+        return $db->execute(
+            "DELETE FROM user_house_permissions WHERE user_id = ? AND house_id = ?",
+            [$userId, $houseId]
+        );
+    }
+}