1 files changed, 23 insertions, 0 deletions
diff --git a/contracts/Migrations.sol b/contracts/Migrations.sol
new file mode 100644
index 0000000..c4efb65
--- /dev/null
+++ b/contracts/Migrations.sol
@@ -0,0 +1,23 @@
+pragma solidity ^0.4.23;
+
+contract Migrations {
+  address public owner;
+  uint public last_completed_migration;
+
+  constructor() public {
+    owner = msg.sender;
+  }
+
+  modifier restricted() {
+    if (msg.sender == owner) _;
+  }
+
+  function setCompleted(uint completed) public restricted {
+    last_completed_migration = completed;
+  }
+
+  function upgrade(address new_address) public restricted {
+    Migrations upgraded = Migrations(new_address);
+    upgraded.setCompleted(last_completed_migration);
+  }
+}