Initial

system/RESTful/BaseResource.php

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+<?php
+
+/**
+ * This file is part of CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\RESTful;
+
+use CodeIgniter\Controller;
+use CodeIgniter\HTTP\RequestInterface;
+use CodeIgniter\HTTP\ResponseInterface;
+use Psr\Log\LoggerInterface;
+
+abstract class BaseResource extends Controller
+{
+    /**
+     * @var string|null The model that holding this resource's data
+     */
+    protected $modelName;
+
+    /**
+     * @var object|null The model that holding this resource's data
+     */
+    protected $model;
+
+    /**
+     * Constructor.
+     */
+    public function initController(RequestInterface $request, ResponseInterface $response, LoggerInterface $logger)
+    {
+        parent::initController($request, $response, $logger);
+        $this->setModel($this->modelName);
+    }
+
+    /**
+     * Set or change the model this controller is bound to.
+     * Given either the name or the object, determine the other.
+     *
+     * @param object|string|null $which
+     */
+    public function setModel($which = null)
+    {
+        if ($which) {
+            $this->model     = is_object($which) ? $which : null;
+            $this->modelName = is_object($which) ? null : $which;
+        }
+
+        if (empty($this->model) && ! empty($this->modelName) && class_exists($this->modelName)) {
+            $this->model = model($this->modelName);
+        }
+
+        if (! empty($this->model) && empty($this->modelName)) {
+            $this->modelName = get_class($this->model);
+        }
+    }
+}