Employee

app / Models / Employee.php

public function departmentInfo(){
        return $this->belongsTo(Department::class, 'department_id');
}

public function profileImagePath(){
    if ($this->profile_image){
        return asset("storage/employee/profile_images/".$this->profile_image);
    }
    return asset('user.png');
}

public function salariesInfo(){
    return $this->hasMany(Salary::class, "user_id", "id");
}