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app/Traits/Uuids.php

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+<?php
+
+namespace App\Traits;
+
+use Illuminate\Support\Str;
+
+trait Uuids
+{
+   /**
+     * Boot function from Laravel.
+     */
+    protected static function boot()
+    {
+        parent::boot();
+        static::creating(function ($model) {
+            if (empty($model->{$model->getKeyName()})) {
+                $model->{$model->getKeyName()} = Str::uuid()->toString();
+            }
+        });
+    }
+
+   /**
+     * Get the value indicating whether the IDs are incrementing.
+     *
+     * @return bool
+     */
+    public function getIncrementing()
+    {
+        return false;
+    }
+
+   /**
+     * Get the auto-incrementing key type.
+     *
+     * @return string
+     */
+    public function getKeyType()
+    {
+        return 'string';
+    }
+}