--- a/app/models/tweet.rb	Sat Dec 09 20:13:24 2017 +0900
+++ b/app/models/tweet.rb	Wed Dec 13 02:28:34 2017 +0900
@@ -6,21 +6,21 @@
   def timeline
     start_client_config_id = @client_config_id
 
-    begin
-      @timeline ||=
-        Rails.cache.fetch({ :timeline => @twitter_id }, :expires_in => cache_expires_time) do
+    @timeline ||=
+      Rails.cache.fetch({ :timeline => @twitter_id }, :expires_in => cache_expires_time) do
+        begin
           @client.user_timeline(@twitter_id, :count => 100, :exclude_replies => false, :include_rts => true, :tweet_mode => :extended)
+        rescue Twitter::Error::TooManyRequests
+          next_client_config_id = @client_config_id + 1
+          init_client next_client_config_id
+
+          if @client_config_id == start_client_config_id
+            raise
+          else
+            retry
+          end
         end
-    rescue Twitter::Error::TooManyRequests
-      next_client_config_id = @client_config_id + 1
-      init_client next_client_config_id
-
-      if @client_config_id == start_client_config_id
-        raise
-      else
-        retry
       end
-    end
   end
 
   def user