Looping data in controller from model codeigniter - php

Question

I'm trying to prevent the user to create the same username. well my real problem is how to loop a list of data from model in controller. Maybe we know how to loop it in view by using this -> data['user'] and in view we can call $user. but how can we do that in controller layer.
here's my code
Controller
$username = strtolower($this->input->post('name'));
$fixUsername = str_replace(" ",".",$username);
$counter = 1;
$list[] = $this->addusermodel->getAllUsername();
for($i=0;$i<sizeof($list);$i++) {
if($list[$i] == $fixUsername) {
$counter = 0;
}
}
if($counter == 0) {
$data['result'] = "The username has already been taken";
$this->load->view('adduserview',$data);
} else {
$data = array(
'Nama' => $this->input->post('name'),
'Username' => $fixUsername."#praba",
'Password' => md5($this->input->post('password')),
'created' => date("Y-m-d h:i:sa"),
'createdBy' => $createdBy,
'lastModified' => date("Y-m-d h:i:sa"),
'lastModifiedBy' => $lastModifiedBy
);
$this->addusermodel->saveUser($data);
//$data['Username'] = $listName;
$data['message'] = "New user successfully added.";
$data['messageContent'] = "The username: ".$fixUsername."#praba". $counter;
$this->load->view('successpageview',$data);
//redirect('successpageview','refresh');
}
my model (is like usual)
function getAllUsername() {
$this->db->select('Username');
$this->db->from('tbluser');
$query = $this->db->get();
return $query->result_array();
}

Answer 1

I think a better approach would be to create another function in your model, which searches your database by ID, or by email, or by another unique field. If the function returns a row - then the user exists. If it returns nothing - then add a new user.