Add all files

app/Models/Price.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\MorphTo;
+
+class Price extends Model
+{
+    use HasFactory;
+
+    public $timestamps = false;
+
+    protected $guarded = [];
+
+    public function priceable(): MorphTo
+    {
+        return $this->morphTo();
+    }
+
+    public function currency(): BelongsTo
+    {
+        return $this->belongsTo(Currency::class);
+    }
+
+    public function plan(): BelongsTo
+    {
+        return $this->belongsTo(Plan::class);
+    }
+}