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Add default implementation for metadata URI

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This allows token implementation to be non-abstract
This commit is contained in:
Santiago Palladino
2018-03-09 13:25:45 -03:00
parent 54a1d2eacc
commit 851685c40e
3 changed files with 54 additions and 27 deletions
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27
contracts/mocks/ERC721TokenMock.sol
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@ -5,7 +5,7 @@ import "../token/ERC721/ERC721Token.sol";
/**
* @title ERC721TokenMock
* This mock just provides a public mint and burn functions for testing purposes,
* and a mock metadata URI implementation
* and a public setter for metadata URI
*/
contract ERC721TokenMock is ERC721Token {
function ERC721TokenMock(string name, string symbol)
@ -21,28 +21,7 @@ contract ERC721TokenMock is ERC721Token {
doBurn(ownerOf(_tokenId), _tokenId);
}
// Mock implementation for testing.
// Do not use this code in production!
function tokenURI(uint256 _tokenId) public view returns (string) {
require(exists(_tokenId));
bytes memory uri = new bytes(78 + 7);
uint256 i;
uint256 value = _tokenId;
uri[0] = "m";
uri[1] = "o";
uri[2] = "c";
uri[3] = "k";
uri[4] = ":";
uri[5] = "/";
uri[6] = "/";
for (i = 0; i < 78; i++) {
uri[6 + 78 - i] = byte(value % 10 + 48);
value = value / 10;
}
return string(uri);
function setTokenURI(uint256 _tokenId, string _uri) public {
doSetTokenURI(_tokenId, _uri);
}
}