23 lines
492 B
Solidity
23 lines
492 B
Solidity
pragma solidity ^0.4.4;
|
|
contract Migrations {
|
|
address public owner;
|
|
uint public last_completed_migration;
|
|
|
|
modifier restricted() {
|
|
if (msg.sender == owner) _;
|
|
}
|
|
|
|
function Migrations() {
|
|
owner = msg.sender;
|
|
}
|
|
|
|
function setCompleted(uint completed) restricted {
|
|
last_completed_migration = completed;
|
|
}
|
|
|
|
function upgrade(address new_address) restricted {
|
|
Migrations upgraded = Migrations(new_address);
|
|
upgraded.setCompleted(last_completed_migration);
|
|
}
|
|
}
|