35 lines
686 B
Solidity
35 lines
686 B
Solidity
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/*
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Copyright 2020 DODO ZOO.
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SPDX-License-Identifier: Apache-2.0
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*/
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pragma solidity 0.6.9;
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pragma experimental ABIEncoderV2;
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contract Migrations {
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address public owner;
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uint256 public last_completed_migration;
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modifier restricted() {
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if (msg.sender == owner) {
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_;
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}
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}
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constructor() public {
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owner = msg.sender;
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}
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function setCompleted(uint256 completed) public restricted {
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last_completed_migration = completed;
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}
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function upgrade(address newAddress) public restricted {
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Migrations upgraded = Migrations(newAddress);
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upgraded.setCompleted(last_completed_migration);
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}
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}
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