Merge branch '3-login-with-username' into 'master'

Resolve "Login with username"

Closes #3

See merge request pnx/httpcb!3

app/models/Data/User.php

@@ -126,4 +126,18 @@ class User extends Model
         $this->password = $password;
         return $this;
     }
+
+    /**
+     * Find the first user by Username or Email
+     *
+     * @param string $value
+     * @return User|bool
+     */
+    static public function findFirstByUsernameOrEmail($value)
+    {
+        return self::findFirst([
+            "email = :v: OR username = :v:",
+            "bind" => [ 'v' => $value ]
+        ]);
+    }
 }