Solidity Blogpost #1: Config Contract, snippet 3

config.sol

contract GoldfinchConfig is Ownable {
  // Note: Solidity creates automatic getter methods for these mappings
  // So we don't need to explicitly add them ourselves.
  mapping(uint256 => address) public addresses;
  mapping(uint256 => uint256) public numbers;

  event AddressUpdated(address owner, uint256 index, address oldValue, address newValue);
  event NumberUpdated(address owner, uint256 index, uint256 oldValue, uint256 newValue);

  function setAddress(uint256 addressIndex, address newAddress) public onlyAdmin {
    emit AddressUpdated(msg.sender, addressIndex, addresses[addressIndex], newAddress);
    addresses[addressIndex] = newAddress;
  }

  function setNumber(uint256 index, uint256 newNumber) public onlyAdmin {
    emit NumberUpdated(msg.sender, index, numbers[index], newNumber);
    numbers[index] = newNumber;
  }
}