raise TinyTds::Error and translate it. 'active?' method is rescuing just those

Author: mgrunberg

lib/active_record/connection_adapters/sqlserver/database_statements.rb

@@ -464,7 +464,7 @@ def finish_statement_handle(handle)
         end
 
         def ensure_established_connection!
-          raise ActiveRecord::ConnectionNotEstablished, 'SQL Server client is not connected' if @connection.nil? || !@connection.active?
+          raise TinyTds::Error, 'SQL Server client is not connected' if @connection.nil? || !@connection.active?
 
           yield
         end

lib/active_record/connection_adapters/sqlserver_adapter.rb

@@ -374,9 +374,9 @@ def initialize_type_map(m = type_map)
       end
 
       def translate_exception(e, message:, sql:, binds:)
-        return e if e.is_a?(ActiveRecord::ConnectionNotEstablished)
-
         case message
+        when /SQL Server client is not connected/
+          ConnectionNotEstablished.new(message)
         when /(cannot insert duplicate key .* with unique index) | (violation of unique key constraint)/i
           RecordNotUnique.new(message, sql: sql, binds: binds)
         when /(conflicted with the foreign key constraint) | (The DELETE statement conflicted with the REFERENCE constraint)/i