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SolidityStructWithMapping.sol
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SolidityStructWithMapping.sol
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// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.8.2 <0.9.0;
contract MyStruct
{
//struct with arrays
// Declare
struct ELibrary
{
string isbn;
string bookname;
uint price;
}
ELibrary[3] public bookList;
uint index;
constructor()
{
index=0;
}
function nextBook() private
{
index++;
}
function setBookRecord(string memory _isbn, string memory _bookname, uint _price) public
{
bookList[index] = ELibrary(_isbn,_bookname,_price);
nextBook();
}
function getBookRecord(uint _index) public view returns(ELibrary memory)
{
ELibrary memory temp = bookList[_index];
return temp;
}
}
contract MyStructMapping
{
// Declare
struct ELibrary
{
string isbn;
string bookname;
uint price;
}
mapping(uint => ELibrary) public myList;
uint mapkey;
constructor()
{
mapkey=1;
}
function nextKey() private {
mapkey++;
}
function mapBookRecord(string memory _isbn, string memory _bookname, uint _price) public
{
myList[mapkey] = ELibrary(_isbn,_bookname,_price);
nextKey();
}
function getBookRecord(uint key) public view returns(ELibrary memory)
{
ELibrary memory temp = myList[key];
return temp;
}
}