Improved migrations' behavior when the schema_info table is empty.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2269 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activerecord/CHANGELOG

 *SVN*
 
+* Improved migrations' behavior when the schema_info table is empty. [Nicholas Seckar]
+
 * Fixed that Observers didn't observe sub-classes #627 [Florian Weber]
 
 * Fix eager loading error messages, allow :include to specify tables using strings or symbols. Closes #2222 [Marcel Molina]

activerecord/lib/active_record/migration.rb

@@ -170,7 +170,7 @@ def down(migrations_path, target_version = nil)
       end
       
       def current_version
-        (Base.connection.select_one("SELECT version FROM schema_info") || {})["version"].to_i
+        (Base.connection.select_one("SELECT version FROM schema_info") || {"version" => 0})["version"].to_i
       end
     end