Remove duplicated unique index name.

1 files changed, 7 insertions, 4 deletions

diff --git a/activerecord/lib/active_record/schema_migration.rb b/activerecord/lib/active_record/schema_migration.rb
index 236ec563d2..ca22154c84 100644
--- a/activerecord/lib/active_record/schema_migration.rb
+++ b/activerecord/lib/active_record/schema_migration.rb
@@ -7,7 +7,11 @@ module ActiveRecord
     attr_accessible :version
 
     def self.table_name
-      Base.table_name_prefix + 'schema_migrations' + Base.table_name_suffix
+      "#{Base.table_name_prefix}schema_migrations#{Base.table_name_suffix}"
+    end
+
+    def self.index_name
+      "#{Base.table_name_prefix}unique_schema_migrations#{Base.table_name_suffix}"
     end
 
     def self.create_table
@@ -15,14 +19,13 @@ module ActiveRecord
         connection.create_table(table_name, :id => false) do |t|
           t.column :version, :string, :null => false
         end
-        connection.add_index table_name, :version, :unique => true,
-          :name => "#{Base.table_name_prefix}unique_schema_migrations#{Base.table_name_suffix}"
+        connection.add_index table_name, :version, :unique => true, :name => index_name
       end
     end
 
     def self.drop_table
       if connection.table_exists?(table_name)
-        connection.remove_index table_name, :name => "#{Base.table_name_prefix}unique_schema_migrations#{Base.table_name_suffix}"
+        connection.remove_index table_name, :name => index_name
         connection.drop_table(table_name)
       end
     end