first upload all files

Modules/Support/Eloquent/Sluggable.php

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+<?php
+
+namespace Modules\Support\Eloquent;
+
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+trait Sluggable
+{
+    /**
+     * Boot the trait.
+     *
+     * @return void
+     */
+    public static function bootSluggable()
+    {
+        static::creating(function ($entity) {
+            $entity->setSlug();
+        });
+    }
+
+    /**
+     * Set the slug attribute.
+     *
+     * @param string $value
+     * @return void
+     */
+    public function setSlug($value = null)
+    {
+        if (is_null($value)) {
+            $value = $this->getAttribute($this->slugAttribute);
+        }
+
+        $this->attributes['slug'] = $this->generateSlug($value);
+    }
+
+    /**
+     * Generate slug by the given value.
+     *
+     * @param string $value
+     * @return string
+     */
+    private function generateSlug($value)
+    {
+        $slug = str_slug($value) ?: slugify($value);
+
+        $query = $this->where('slug', $slug)->withoutGlobalScope('active');
+
+        if (array_has(class_uses($this), SoftDeletes::class)) {
+            $query->withTrashed();
+        }
+
+        if ($query->exists()) {
+            $slug .= '-' . str_random(8);
+        }
+
+        return $slug;
+    }
+}