getting the id when the data is saved into the database using codeigniter - codeigniter

Question

Hi i have this form when save, saved into the database. I want that when the data is saved into the database i will get the id on it then displaying it to the next page.
Here's my controller below in my function add_new
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Create_album extends CI_Controller {
public function __construct(){
parent::__construct();
$this->load->library('session');
$this->load->model('admin_model', 'am');
$this->load->library('form_validation');
if(!$this->session->userdata('logged_in')){
redirect('login');
}
}
public function detail($id){
return $id;
$this->data['item'] = $this->am->getItem($id);
print_r($this->data['item']);exit;
}
public function add_new(){
$this->form_validation->set_rules('title', 'Title', 'required');
$this->form_validation->set_rules('description', 'Description', 'required');
if($this->form_validation->run() == FALSE){
$this->data['title'] = 'Create New Album';
$this->data['logout'] = 'logout';
$this->data['home'] = 'activities';
$session_data = $this->session->userdata('logged_in');
$this->data['id'] = $session_data['id'];
$this->data['username'] = $session_data['username'];
$this->load->view('pages/admin_header', $this->data);
$this->load->view('content/create_album', $this->data);
$this->load->view('pages/admin_footer');
}else{
$array = array(
'title'=>$this->input->post('title'),
'description'=>$this->input->post('description')
);
$this->am->saveAlbum($array);
$id = $this->db->id;
$this->data['item'] = $this->am->getItem($id);
return $this->am->saveAlbum($id);
foreach($this->data['item'] as $item){
$itemId = $item->id;
}
return $itemId;
redirect('create_album/detail/id/'.$itemId);
}
}
public function index(){
$this->data['title'] = 'Create Album';
$this->data['logout'] = 'logout';
$this->data['home'] = 'activities';
$session_data = $this->session->userdata('logged_in');
$this->data['id'] = $session_data['id'];
$this->data['username'] = $session_data['username'];
$this->load->view('pages/admin_header', $this->data);
$this->load->view('content/create_album', $this->data);
$this->load->view('pages/admin_footer');
}
}
my model
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
Class Admin_model extends CI_Model{
public function getItem($id){
return $this->db->select('item.id,
item.parent_id,
item.title,
item.description,
item.filename
'
)
->from('item')
->where('item.id', $id)
->get()->result_object();
$this->db->get('item');
}
}
?>
Can someone help me figured this out? i want to get the ID when the data is saved. Any help is muchly appreciated. Thank you

Answer 1

Simply use this
$this->db->insert_id(); // Returns your row id.
Here how your controller should look like
public function add_new(){
$this->form_validation->set_rules('title', 'Title', 'required');
$this->form_validation->set_rules('description', 'Description', 'required');
if($this->form_validation->run() == FALSE){
$this->data['title'] = 'Create New Album';
$this->data['logout'] = 'logout';
$this->data['home'] = 'activities';
$session_data = $this->session->userdata('logged_in');
$this->data['id'] = $session_data['id'];
$this->data['username'] = $session_data['username'];
$this->load->view('pages/admin_header', $this->data);
$this->load->view('content/create_album', $this->data);
$this->load->view('pages/admin_footer');
}else{
$array = array(
'title'=>$this->input->post('title'),
'description'=>$this->input->post('description')
);
$this->am->saveAlbum($array);
$id = $this->db->id;
$this->data['item'] = $this->am->getItem($id);
return $this->am->saveAlbum($id);
foreach($this->data['item'] as $item){
$itemId = $item->id;
}
return $itemId;
redirect('create_album/detail/id/'.$this->db->insert_id()); // here?
}
}

Answer 2

Think you're probably looking for the insert_id() query helper function. You can see info about it in the Codeigniter docs.

Answer 3

When PHP hits return in a function it does just that, return a value, and it exits the function. Code following the return will not be executed. Read about it on the docs page
Example:
public function detail($id){
return $id;
echo 'here';
}
You will never get 'here' to echo, since you have already returned a value in your function().
Again this applies twice in your code, once here:
return $itemId;
redirect('create_album/detail/id/'.$this->db->insert_id());
and again here:
$this->data['item'] = $this->am->getItem($id);
return $this->am->saveAlbum($id);
If you want the insert id you are going to have to return it from $this->am->saveAlbum(); Assign that to a variable and pass it to your redirect.
There are quite a few other issues, but that should help to get you started.