update works with postgres

controllers/people.php

@@ -18,7 +18,7 @@ if($_REQUEST['action'] === 'index'){
 } else if ($_REQUEST['action'] === 'update'){
     $requestBody = file_get_contents('php://input');
     $body = json_decode($requestBody);
-    $updatedPerson = new Person($body->name, $body->age);
+    $updatedPerson = new Person(null, $body->name, $body->age);
     $allPeople = People::update($_REQUEST['id'], $updatedPerson);
 
     echo json_encode($allPeople);

database/sql/update.sql

@@ -0,0 +1 @@
+UPDATE people SET name = $1, age = $2 WHERE id = $3

models/person.php

@@ -35,15 +35,11 @@ class People {
 
         return self::find();
     }
-    static function update($index, $updatedPerson){
-        $people = array();
-        $people[] = new Person('joni', 52);
-        $people[] = new Person('bob', 34);
-        $people[] = new Person('sally', 21);
-        $people[] = new Person('matt', 37);
+    static function update($id, $updatedPerson){
+        $query = file_get_contents(__DIR__ . '/../database/sql/update.sql');
+        $result = pg_query_params($query, array($updatedPerson->name, $updatedPerson->age, $id));
 
-        $people[$index] = $updatedPerson;
-        return $people;
+        return self::find();
     }
 }
 ?>