ruby on rails - How do I concat to a text field in ActiveRecord? -

i storing logs in text field in mysql right , able add text field rather writing entire thing in query because overflows exceed "max packet size"

there isn't in activerecord support concat. can write custom sql query uses concat, so:

activerecord::base.connection.execute(sql) 

or adjust mysql settings:

 mysqld --max_allowed_packet=16m 

or best solution has been addressed already: database-independent sql string concatenation in rails