first commit

app/Models/ApprovalWorkflow.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class ApprovalWorkflow extends Model
+{
+    protected $casts = ['steps' => 'array'];
+    
+    public function getCurrentStep(Document $document)
+    {
+        $lastApproval = $document->approvals()->latest()->first();
+        return $lastApproval ? $this->steps[$lastApproval->step_index + 1] : $this->steps[0];
+    }
+}