Initial commit

app/Rules/UUID.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace App\Rules;
+
+use App\Cache\Cache;
+use App\User;
+use Illuminate\Contracts\Validation\Rule;
+
+class UUID implements Rule
+{
+    /**
+     * Create a new rule instance.
+     *
+     * @return void
+     */
+    public function __construct()
+    {
+        //
+    }
+
+    /**
+     * Determine if the validation rule passes.
+     *
+     * @param  string  $attribute
+     * @param  mixed  $value
+     * @return bool
+     */
+    public function passes($attribute, $value)
+    {
+        $uuid = Cache::getUUID($value);
+        if(empty($uuid))
+            return false;
+
+        $user = User::where('uuid', '=', $uuid)->first();
+        return empty($user);
+    }
+
+    /**
+     * Get the validation error message.
+     *
+     * @return string
+     */
+    public function message()
+    {
+        return 'Username: :attribute is already in use';
+    }
+}