class RuboCop::Cop::Rails::WhereNot

def build_good_method(dot, column, value)
  dot ||= '.'
  if column.include?('.')
    table, column = column.split('.')
    "where#{dot}not(#{table}: { #{column}: #{value} })"
  else
    "where#{dot}not(#{column}: #{value})"
  end
end