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December 5, 2021 14:55
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//SPDX-License-Identifier: MIT | |
pragma solidity ^0.8.1; | |
import "./SimpleStorage.sol"; | |
// This is a contract that will let you create and deploy SimpleStorage contracts | |
// A Contract that creates other contracts - Contract Factory | |
// In the end, we also inherited SimpleStorage here so that | |
// SimpleStorageFactory gets all functionalities of SimpleStorage | |
contract StorageFactory is SimpleStorage{ | |
SimpleStorage[] public simpleStorageArray; | |
function createSimpleStorageContract() public { | |
SimpleStorage simpleStorage = new SimpleStorage(); | |
simpleStorageArray.push( simpleStorage ); | |
} | |
// Store something to simple Storage contract that is deployed using above function | |
function sfStore(uint256 _simpleStorageIndex, uint256 _simpleStorageNumber) public{ | |
// Address of SimpleStorage contract instance | |
// ABI - Application Binary Interface | |
// Get the simple storage contract ABI that we need to interact using the address | |
SimpleStorage( address( simpleStorageArray[ _simpleStorageIndex ] ) ).store( _simpleStorageNumber ); | |
} | |
function sfGet( uint256 _simpleStorageIndex ) public view returns( uint256 ) { | |
return SimpleStorage( address( simpleStorageArray[ _simpleStorageIndex ] ) ).retrieve(); | |
} | |
} |
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