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main.sol
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main.sol
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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
contract JobApplicationSystem {
struct Student {
uint256 studentID;
string name;
string skills;
uint256 regid;
uint256[] appliedCompanyIDs;
// Company IDs to which the student has applied
}
struct Company {
uint256 companyID;
string name;
string description;
}
struct JobApplication {
uint256 studentID;
uint256 companyID;
}
mapping(uint256 => Student) public students;
mapping(uint256 => Company) public companies;
mapping(uint256 => JobApplication) public jobApplications;
mapping(uint256=>uint256)public studlogin;
mapping(string=>uint256)public complogin;
uint256 public numStudents = 0;
uint256 public numCompanies = 0;
uint256 public numApplications = 0;
function createStudent(string memory _name, string memory _skills, uint256 _regid) public {
numStudents++;
students[numStudents] = Student({
studentID: numStudents,
name: _name,
skills: _skills,
regid:_regid,
appliedCompanyIDs: new uint256[](0)
});
studlogin[_regid]=numStudents;
}
function createCompany(string memory _name, string memory _description) public {
numCompanies++;
companies[numCompanies] = Company({
companyID: numCompanies,
name: _name,
description: _description
});
complogin[_name]=numCompanies;
}
function applyToCompany(uint256 studentID, uint256 companyID) public {
require(studentID <= numStudents && studentID > 0, "Invalid studentID");
require(companyID <= numCompanies && companyID > 0, "Invalid companyID");
numApplications++;
jobApplications[numApplications] = JobApplication({
studentID: studentID,
companyID: companyID
});
students[studentID].appliedCompanyIDs.push(companyID);
}
function getStudentApplications(uint256 studentID)
public
view
returns (Company[] memory)
{
require(studentID <= numStudents && studentID > 0, "Invalid studentID");
Student storage student = students[studentID];
Company[] memory appliedCompanies = new Company[](student.appliedCompanyIDs.length);
for (uint256 i = 0; i < student.appliedCompanyIDs.length; i++) {
appliedCompanies[i] = companies[student.appliedCompanyIDs[i]];
}
return appliedCompanies;
}
}