event OwnershipTransferred(address indexed previousOwner, address indexed newOwner)
What is the purpose of this line?
https://github.com/OpenZeppelin/zeppelin-solidity/blob/master/contracts/ownership/Ownable.sol
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1 Answer
This line defines an event which can be emitted after something takes place. Clients can then listen for this event and react when it happens. http://solidity.readthedocs.io/en/develop/contracts.html#events
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Is it necessary for the ownership of a contract to be transferred? Or is it just an extra functionality? Mar 12, 2018 at 17:01
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No.. smart contracts can't be edited once deployed. So its good to put it in there just in case. Mar 12, 2018 at 20:08
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But we can still change the owner address without the event. What do you mean? Mar 13, 2018 at 0:39