From 414cfbdae09b380e49938bfb1532147ed8865bfa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonne=20Ha=C3=9F?= <me@jhass.eu>
Date: Sun, 15 Mar 2015 15:59:06 +0100
Subject: [PATCH] Array#to_h is new in Ruby 2.1, we still suppport 2.0

---
 db/migrate/20150106050733_set_mysql_to_unicode_mb4.rb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/db/migrate/20150106050733_set_mysql_to_unicode_mb4.rb b/db/migrate/20150106050733_set_mysql_to_unicode_mb4.rb
index b69c3317f..6d16ce30d 100644
--- a/db/migrate/20150106050733_set_mysql_to_unicode_mb4.rb
+++ b/db/migrate/20150106050733_set_mysql_to_unicode_mb4.rb
@@ -37,12 +37,12 @@ class SetMysqlToUnicodeMb4 < ActiveRecord::Migration
 
   def character_columns
     # build a hash with all the columns that contain characters
-    @character_columns ||= tables.map {|table|
+    @character_columns ||= Hash[tables.map {|table|
       col = columns(table)
         .select {|column| column.type == :string || column.type == :text }
       next if col.empty?
       [table, col]
-    }.compact.to_h
+    }.compact]
   end
 
   def shorten_indexes