Rebuilding with CodeIgniter 4

app/Models/BlogModel.php

@@ -0,0 +1,21 @@
+<?php namespace App\Models;
+
+use CodeIgniter\Model;
+
+class BlogModel extends Model
+{
+    protected $table = 'blog';
+
+    public function getBlog($slug = false)
+    {
+        if ($slug === false)
+        {
+            return $this->findAll();
+        }
+
+        return $this->asArray()
+                    ->where(['slug' => $slug])
+                    ->first();
+    }
+
+}