页面加载错误codeigniter

Question

Small codeigniter project that supplies listing of held domains. After the login page you are redirected to the list of domains from the database. Run this page (the list of doamins) and there is no problem. The only problem is when you call this page from the login. The login page is no problem (login controller below).

public function index(){
    $this->load->view('login');
}
public function checklogin()
{
    $this->form_validation->set_rules('username','Username','required');
    $this->form_validation->set_rules('password','Password','required|callback_verifyUser');

    if($this->form_validation->run() == false){
        $this->load->view('login');
    }else{
        $this->load->view('home');
    }
}
public function verifyUser(){
    $User = $this->input->post('username');
    $Pwd = $this->input->post('password');

    $this->load->model('Loginmodel');
    if($this->Loginmodel->login($User,$Pwd)){
            return true;
    }else{
         $this->form_validation->set_message('verifyUser','Incorrect Login Details');   
         return false;
    }
}

The call to the 'home' index seem to be the problem (code below) Home page model

public function getPosts()
{
    $result = array();
    $this->db->select('*');
    $this->db->from('domains');
    $this->db->where('Active','Y');
    $this->db->order_by('ExpDate','ASC');
    //$query= $this->db->query("select * from baldwin_domains where Active ='Y' order by ExpDate ASC");
    $query = $this->db->get();
    if($query->num_rows()>0){
        return $query->result();
    }
}

The home page controller:

public function index()
{
    $this ->load->model('Crudmodel');
    $records = $this->Crudmodel->getPosts();
    $this->load->view('home', ['records' => $records]);
}

remove the login and there is no problem all pages work fine. This is the error:

A PHP Error was encountered

Severity: Notice

Message: Undefined variable: records

Filename: views/home.php
Line Number: 17
Backtrace:
File: C:\xampp\htdocs\domainsys\application\views\home.php
Line: 17
Function: _error_handler
File: C:\xampp\htdocs\domainsys\application\controllers\Login.php
Line: 15
Function: view
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/home.php
Line Number: 17
Backtrace:
File: C:\xampp\htdocs\domainsys\application\views\home.php
Line: 17
Function: _error_handler
File: C:\xampp\htdocs\domainsys\application\controllers\Login.php
Line: 15
Function: view

Answer 1

The problem is when the user enters the valid credentials you will load the view home. But you are not passing any parameter to the view.

By looking at the home controller, I assume you are rendering a list of posts on the home page(Home view). So instead of loading the view, you must redirect him to home controller.

Try using redirect('home','refresh') instead of $this->load->view('home') after logging in.

public function checklogin()
{
    $this->form_validation->set_rules('username', 'Username','required');
    $this->form_validation->set_rules ('password','Password','required|callback_verifyUser');

    if($this->form_validation->run() == false){
        $this->load->view('login');
    }else{
        redirect('home','refresh');
    }
}

The redirect takes him to the home controller and renders what is needed.

public function index()
{
    $this ->load->model('Crudmodel');
    $records = $this->Crudmodel->getPosts();
    $this->load->view('home', array('records' => $records));
}