Update source into github

app/Support/Eloquent/Sluggable.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace App\Support\Eloquent;
+
+use Illuminate\Support\Str;
+
+trait Sluggable
+{
+
+    /**
+     * Boot the trait.
+     *
+     * @return void
+     */
+    public static function bootSluggable()
+    {
+        static::saving(function ($entity) {
+            $entity->createSlug();
+        });
+    }
+
+    public function createSlug()
+    {
+        $columnSlug = $this->columnSlug ?? 'name';
+
+        $slug = Str::slug($this->$columnSlug);
+        $allSlugs = $this->getRelatedSlugs($slug, $this->id);
+        if (!$allSlugs->contains('slug', $slug)) {
+            $this->slug = $slug;
+            return $slug;
+        }
+        $i = 1;
+        $is_contain = true;
+        do {
+            $newSlug = $slug . '-' . $i;
+            if (!$allSlugs->contains('slug', $newSlug)) {
+                $is_contain = false;
+                $this->slug = $newSlug;
+                return $newSlug;
+            }
+            $i++;
+        } while ($is_contain);
+    }
+
+    protected function getRelatedSlugs($slug, $id = 0)
+    {
+        return Self::select('slug')->where('slug', 'like', $slug . '%')
+            ->where('id', '<>', $id)
+            ->get();
+    }
+}