class RuboCop::Cop::Rails::FindBy

def autocorrect(corrector, node)
  return if node.method?(:first)
  where_loc = node.receiver.loc.selector
  first_loc = range_between(node.receiver.source_range.end_pos, node.loc.selector.end_pos)
  corrector.replace(where_loc, 'find_by')
  corrector.replace(first_loc, '')
end