# Migration type: online without errors (works on previous version and new one)classRenameEmojis<ActiveRecord::Migrationdefup# Renames aliases to main namesexecute("UPDATE notes SET note ='thumbsup' WHERE is_award = true AND note = '+1'")execute("UPDATE notes SET note ='thumbsdown' WHERE is_award = true AND note = '-1'")execute("UPDATE notes SET note ='poop' WHERE is_award = true AND note = 'shit'")enddefdownexecute("UPDATE notes SET note ='+1' WHERE is_award = true AND note = 'thumbsup'")execute("UPDATE notes SET note ='-1' WHERE is_award = true AND note = 'thumbsdown'")execute("UPDATE notes SET note ='shit' WHERE is_award = true AND note = 'poop'")endend