From 13eeb25f0165006ad7542cc57037f1ea5b3309eb Mon Sep 17 00:00:00 2001
From: lizconlan <liz@mysociety.org>
Date: Tue, 7 Feb 2017 12:22:50 +0000
Subject: [PATCH] Add new private method to DatabaseCollation to retrieve db
 encoding

---
 lib/database_collation.rb | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/lib/database_collation.rb b/lib/database_collation.rb
index 9716ea3475..8a235a69a5 100644
--- a/lib/database_collation.rb
+++ b/lib/database_collation.rb
@@ -59,6 +59,15 @@ def supported_collations
         map { |row| row['collname'] }
   end
 
+  def database_encoding
+    sql = <<-EOF.strip_heredoc.squish
+    SELECT encoding FROM pg_database
+    WHERE datname = '#{ connection.current_database }';
+    EOF
+
+    @database_encoding ||= connection.execute(sql).first["encoding"]
+  end
+
   def adapter_name
     @adapter_name ||= connection.adapter_name
   end