create crud product categories and partial update crud products with dealers stock

app/Models/ProductCategory.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class ProductCategory extends Model
+{
+    use HasFactory, SoftDeletes;
+
+    protected $fillable = ['name'];
+
+    public function products(){
+        return $this->hasMany(Product::class, 'product_category_id');
+    }
+}