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Allow operators to call approve on a token

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This commit is contained in:
Santiago Palladino
2018-03-09 13:49:13 -03:00
parent 851685c40e
commit 3cef880803
2 changed files with 48 additions and 53 deletions
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5
contracts/token/ERC721/ERC721BasicToken.sol
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@ -83,12 +83,15 @@ contract ERC721BasicToken is ERC721Basic {
* @dev Approves another address to transfer the given token ID
* @dev The zero address indicates there is no approved address.
* @dev There can only be one approved address per token at a given time.
* @dev Can only be called by the token owner or an approved operator.
* @param _to address to be approved for the given token ID
* @param _tokenId uint256 ID of the token to be approved
*/
function approve(address _to, uint256 _tokenId) public onlyOwnerOf(_tokenId) {
function approve(address _to, uint256 _tokenId) public {
address owner = ownerOf(_tokenId);
require(_to != owner);
require(msg.sender == owner || isApprovedForAll(owner, msg.sender));
if (getApproved(_tokenId) != 0 || _to != 0) {
tokenApprovals[_tokenId] = _to;
Approval(owner, _to, _tokenId);