Files
openzeppelin-contracts/contracts/token/ERC721/ERC721Mintable.sol
Nicolás Venturo 4b33eaefa2 Improved ERC721 granularity (#1304)
* Split enumerable and metadata implementations.

* Renamed ERC721Basic to ERC721, and ERC721 to ERC721Full.

* Fixed linter errors.
2018-09-07 14:04:42 -03:00

77 lines
1.4 KiB
Solidity

pragma solidity ^0.4.24;
import "./ERC721Full.sol";
import "../../access/roles/MinterRole.sol";
/**
* @title ERC721Mintable
* @dev ERC721 minting logic
*/
contract ERC721Mintable is ERC721Full, MinterRole {
event MintingFinished();
bool private _mintingFinished = false;
modifier onlyBeforeMintingFinished() {
require(!_mintingFinished);
_;
}
/**
* @return true if the minting is finished.
*/
function mintingFinished() public view returns(bool) {
return _mintingFinished;
}
/**
* @dev Function to mint tokens
* @param to The address that will receive the minted tokens.
* @param tokenId The token id to mint.
* @return A boolean that indicates if the operation was successful.
*/
function mint(
address to,
uint256 tokenId
)
public
onlyMinter
onlyBeforeMintingFinished
returns (bool)
{
_mint(to, tokenId);
return true;
}
function mintWithTokenURI(
address to,
uint256 tokenId,
string tokenURI
)
public
onlyMinter
onlyBeforeMintingFinished
returns (bool)
{
mint(to, tokenId);
_setTokenURI(tokenId, tokenURI);
return true;
}
/**
* @dev Function to stop minting new tokens.
* @return True if the operation was successful.
*/
function finishMinting()
public
onlyMinter
onlyBeforeMintingFinished
returns (bool)
{
_mintingFinished = true;
emit MintingFinished();
return true;
}
}