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CubLearn-Solidity
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This commit is contained in:
osmannyildiz 2023-12-17 08:01:10 +03:00
parent 44a57410a6
commit c2514c84bc
3 changed files with 44 additions and 28 deletions
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32
contracts/CubLearn.sol
View File

@ -24,19 +24,27 @@ contract CubLearn is Ownable {
dtlContract = DTLToken(dtlContractAddress);
cubcertContract = NftCertificate(cubcertContractAddress);
coursePrices["1"] = 300;
coursePrices["2"] = 500;
coursePrices["3"] = 200;
coursePrices["4"] = 150;
coursePrices["5"] = 250;
coursePrices["6"] = 250;
coursePrices["7"] = 450;
coursePrices["1"] = 300;
coursePrices["2"] = 500;
coursePrices["3"] = 200;
coursePrices["4"] = 150;
coursePrices["5"] = 250;
coursePrices["6"] = 250;
coursePrices["7"] = 450;
cashbackPercentage = 50;
}
function amIEnrolledInCourse(string courseId) external view returns (bool) {
return enrolledCourses[courseId][msg.sender];
}
function didICompleteCourse(string courseId) external view returns (bool) {
return issuedCertificates[courseId][msg.sender];
}
function setCashbackPercentage(uint256 newValue) external onlyOwner {
require(newValue <= 100, "Cashback percentage cannot be more than 100.");
require(newValue <= 100, "Cashback percentage cannot be more than 100.");
cashbackPercentage = newValue;
}
@ -46,7 +54,7 @@ contract CubLearn is Ownable {
dtlContract.transferFrom(msg.sender, address(this), coursePrices[courseId]);
enrolledCourses[courseId][msg.sender] = true;
enrolledCourses[courseId][msg.sender] = true;
}
function finishCourse(
@ -63,9 +71,9 @@ contract CubLearn is Ownable {
// Mark the certificate as issued
issuedCertificates[courseId][msg.sender] = true;
// Cashback
uint256 cashbackAmount = coursePrices[courseId] * cashbackPercentage / 100;
dtlContract.transfer(msg.sender, cashbackAmount);
// Cashback
uint256 cashbackAmount = coursePrices[courseId] * cashbackPercentage / 100;
dtlContract.transfer(msg.sender, cashbackAmount);
}
function getDTLBalance() external view onlyOwner returns (uint256) {

20
contracts/DTLToken.sol
View File

@ -8,11 +8,19 @@ contract DTLToken is ERC20 {
_mint(initialHolder, 1000000000);
}
function decimals() public view virtual override returns (uint8) {
return 0;
}
function decimals() public view virtual override returns (uint8) {
return 0;
}
function approveMax(address spender) external returns (bool) {
return approve(spender, totalSupply());
}
function getAllowanceOfSpender(address spender) external view returns (uint256) {
return allowance(msg.sender, spender);
}
function approveMax(address spender) external returns (bool) {
return approve(spender, totalSupply());
}
function getMyBalance() external view returns (uint) {
return balanceOf(msg.sender);
}
}

18
contracts/NftCertificate.sol
View File

@ -48,15 +48,15 @@ contract NftCertificate is ERC721 {
});
}
function getCertificateInfo(uint256 tokenId)
external
view
returns (
CertificateInfo memory certInfo
)
{
return certificateInfoMapping[tokenId];
}
// function getCertificateInfo(uint256 tokenId)
// external
// view
// returns (
// CertificateInfo memory certInfo
// )
// {
// return certificateInfoMapping[tokenId];
// }
function _getSvg(uint256 tokenId) internal view returns (string memory) {
CertificateInfo storage certInfo = certificateInfoMapping[tokenId];