обработка как табличного запроса так и запроса методом

#!/usr/bin/lua

function methods_getparam(self,...)
  local _ = {...};
  if (_[1] == self) then table.remove(_,1); end
  return unpack(_)
end

host = {}
host.new = function(id, name)
  local self = {}

  self[id] = {}
  self[id].name = name or "default"

  self.GetIdByName = function(...)
--    local _ = {...}; if (_[1] == self) then table.remove(_,1); end
--    local searchname = unpack(_)
    local searchname = methods_getparam(self,...)
    for id,t in pairs(self) do
      print(id,t.name)
    end
    return id
  end

  self.SetName = function(...)
--    local _ = {...}; if (_[1] == self) then table.remove(_,1); end
--    local id, newname = unpack(_)
    local id, newname = methods_getparam(self,...)
    self[id].name = newname
  end

  self.GetName = function(...)
--    local _ = {...}; if (_[1] == self) then table.remove(_,1); end
--    local id = unpack(_)
    local id = methods_getparam(self,...)
    return self[id].name or false
  end

  return self
end

hosts = host.new(5)

print(hosts.GetName(5))
print(hosts:GetName(5))
hosts.SetName(5,"asd")
print(hosts.GetName(5))
print(hosts:GetName(5))
hosts:SetName(5,"qwe")
print(hosts.GetName(5))
print(hosts:GetName(5))