New code for email address change in profile. See #857

app/Repositories/User/UserRepositoryInterface.php

@@ -42,6 +42,14 @@ interface UserRepositoryInterface
      */
     public function attachRole(User $user, string $role): bool;
 
+    /**
+     * @param User   $user
+     * @param string $newEmail
+     *
+     * @return bool
+     */
+    public function changeEmail(User $user, string $newEmail): bool;
+
     /**
      * @param User   $user
      * @param string $password
@@ -80,6 +88,13 @@ interface UserRepositoryInterface
      */
     public function find(int $userId): User;
 
+    /**
+     * @param string $email
+     *
+     * @return User|null
+     */
+    public function findByEmail(string $email): ?User;
+
     /**
      * Return basic user information.
      *