fix: tree & guide

app/Models/GuidePageEdge.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class GuidePageEdge extends Model
+{
+    protected $fillable = [
+        'guide_id',
+        'from_page_id',
+        'to_page_id',
+        'label',
+        'sort',
+    ];
+
+    public function guide()
+    {
+        return $this->belongsTo(Guide::class);
+    }
+
+    public function fromPage()
+    {
+        return $this->belongsTo(GuidePage::class, 'from_page_id');
+    }
+
+    public function toPage()
+    {
+        return $this->belongsTo(GuidePage::class, 'to_page_id');
+    }
+}