Does ERC721A work with NFT changing name?

[barbar150]

No description provided.

[Vectorized]

Yes!

function _setStringAtStorageSlot(string memory value, uint256 storageSlot) private {
    assembly {
        let stringLength := mload(value)

        switch gt(stringLength, 0x1F)
        case 0 {
            sstore(storageSlot, or(mload(add(value, 0x20)), mul(stringLength, 2)))
        }
        default {
            sstore(storageSlot, add(mul(stringLength, 2), 1))
            mstore(0x00, storageSlot)
            let dataSlot := keccak256(0x00, 0x20)
            for { let i := 0 } lt(mul(i, 0x20), stringLength) { i := add(i, 0x01) } {
                sstore(add(dataSlot, i), mload(add(value, mul(add(i, 1), 0x20))))
            }
        }
    }
}

function setName(string memory value) public {
    _setStringAtStorageSlot(value, 2);
}

function setSymbol(string memory value) public {
    _setStringAtStorageSlot(value, 3);
}

This is only for the regular ERC721A (non-upgradeable version), and make sure ERC721A is the first class you inherit.

Make sure to add an onlyOwner modifer to setName and setSymbol.

Another way is to simply override the name() and symbol() functions with the latest code in this repo.

[tareqbara]

@Vectorized this code lets the owner of the NFT change its name?

[Vectorized]

Please make sure that you use the onlyOwner modifier to only allow the contract owner to call those functions.

[tareqbara]

@Vectorized I understand, but will this function let the owner of the NFT change their NFT name? Like The SHIBOSHIS?

[Vectorized]

No.

That’s tokenURI.

[intenex]

Just wanted to say thank you for providing this code! Super helpful!