From c2de4bfd85bd2c9bdb465cf2ab1a8b5c0ebb2cd4 Mon Sep 17 00:00:00 2001
From: Adrian Perez de Castro <aperez@igalia.com>
Date: Sat, 9 Jul 2016 00:30:59 +0300
Subject: [PATCH] Add method room:get_alias_or_id()

This new methods returns the most adequate identifier for a room:

1. If defined, the room's canonical alias.
2. Otherwise, the first alias.
3. As a last resort, the room identifier is returned.
---
 matrix/client.lua | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/matrix/client.lua b/matrix/client.lua
index 0c8ae0c..1e5b9da 100644
--- a/matrix/client.lua
+++ b/matrix/client.lua
@@ -207,6 +207,16 @@ function Room:update_aliases()
    return false
 end
 
+function Room:get_alias_or_id()
+   if self.canonical_alias then
+      return self.canonical_alias
+   elseif #self.aliases > 0 then
+      return self.aliases[1]
+   else
+      return self.room_id
+   end
+end
+
 local make_unimplemented_handler = function (self, event)
    local env_value = os.getenv("MATRIX_CLIENT_LOG_UNHANDLED_EVENTS")
    if env_value and #env_value > 0 and env_value ~= "0" then