Update Quiz Entity, Gateway & Model + Fix issues

src/Entity/QuizEntity.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace Entity;
+class QuizEntity
+{
+
+    private int $id_quiz;
+
+    private int $nb_questions;
+
+    public function __construct(int $id_quiz, int $nb_questions)
+    {
+        $this -> id_quiz = $id_quiz;
+        $this -> nb_questions = $nb_questions;
+    }
+
+    public function getIdQuiz(): int
+    {
+        return $this -> id_quiz;
+    }
+
+    public function getNbQuestions(): int
+    {
+        return $this -> nb_questions;
+    }
+}

src/Gateway/QuizGateway.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace Gateway;
+use Connection;
+use PDO;
+
+require_once("../Entity/QuizEntity.php");
+
+class QuizGateway
+{
+    private Connection $co;
+
+    public function __construct(Connection $co)
+    {
+        $this -> co = $co;
+    }
+
+    public function create(int $id_quiz, int $nb_questions) : bool
+    {
+        $query = "
+            INSERT INTO Quiz
+            VALUES (:id_q, :nb_q)
+        ";
+
+        return $this -> co -> executeQuery($query, [
+            ':id_q' => array($id_quiz, PDO::PARAM_INT),
+            ':nb_q' => array($nb_questions, PDO::PARAM_INT)
+        ]);
+    }
+
+    public function findQuizById(int $id) : array
+    {
+        $query = "SELECT * FROM Quiz WHERE id_quiz = :id_q";
+        $this -> co -> executeQuery($query, [':id_q' => array($id, PDO::PARAM_INT)]);
+        return $this -> co -> getResults();
+    }
+
+    public function delete(int $id) : bool
+    {
+        $query = "DELETE FROM Quiz WHERE id_quiz = :id_q";
+        return $this -> co -> executeQuery($query, [':id_q' => array($id, PDO::PARAM_INT)]);
+    }
+
+    public function findAll() : array
+    {
+        $query = "SELECT * FROM Quiz";
+        $this -> co -> executeQuery($query);
+        return $this -> co -> getResults();
+    }
+
+}

src/Model/QuizModel.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace Model;
+
+use Entity\QuizEntity;
+use Gateway\QuizGateway;
+
+class QuizModel {
+
+    private QuizGateway $gateway;
+
+    public function __construct(QuizGateway $gw)
+    {
+        $this -> gateway = $gw;
+    }
+
+    public function createQuiz(int $id_quiz, int $nb_questions) : bool
+    {
+        return $this -> gateway -> create($id_quiz, $nb_questions);
+    }
+
+    public function getQuiz(int $id_quiz): ?QuizEntity
+    {
+        $q = $this -> gateway -> findQuizById($id_quiz);
+        if ($q) {
+            return new QuizEntity(
+                $q['id_quiz'],
+                $q['nb_questions'],
+            );
+        }
+        return null;
+    }
+
+    public function deleteQuiz(int $id_quiz) : bool
+    {
+        return $this -> gateway -> delete($id_quiz);
+    }
+
+    public function getAllQuiz() : array
+    {
+        $q = $this -> gateway -> findAll();
+
+        $quizzes = [];
+
+        foreach ($q as $quiz) {
+            $quizzes[] = new QuizEntity(
+                $quiz['id_quiz'],
+                $quiz['nb_questions']
+            );
+        }
+        return $quizzes;
+
+    }
+
+}