Working interface and parsed symfony cast data to a database.

app/Models/Chapter.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+/**
+ * @property int $order
+ * @property string $link
+ * @property string $video_link
+ * @property integer $video_size
+ * @property string $title
+ * @property string $duration
+ * @property integer $course_id
+ */
+class Chapter extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'order',
+        'link',
+        'video_link',
+        'video_size',
+        'title',
+        'duration',
+        'course_id',
+    ];
+
+    public function course(): BelongsTo
+    {
+        return $this->belongsTo(Course::class);
+    }
+}