recreate project

app/Models/InventoryCategoryModel.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Models;
+
+use CodeIgniter\Model;
+
+class InventoryCategoryModel extends Model
+{
+    protected $table         = 'inventory_categories';
+    protected $primaryKey    = 'id';
+    protected $returnType    = 'array';
+    protected $useTimestamps = true;
+
+    protected $allowedFields = [
+        'type',
+        'name',
+        'description',
+        'grade_min',
+        'grade_max',   
+        'created_at',
+        'updated_at',
+    ];
+
+    public function optionsForType(string $type): array
+    {
+        return $this->select('id, name, description, grade_min, grade_max')
+                    ->where('type', $type)
+                    ->orderBy('name', 'ASC')
+                    ->findAll(); // returnType already 'array'
+    }
+}