Viewing files from database tables using Codeigniter - php

Question

I am trying to view my image files taken from the database and i have no idea why i get a undefined variable when loading my view.
Pretty much I am just trying to view the imagenames stored in my database images.
Any help would be great thank you.
Here are the errors i receive when viewing in browser
A PHP Error was encountered
Severity: Notice
Message: Undefined variable: imagename
Filename: layouts/home.php
Line Number: 8
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: layouts/home.php
Line Number: 8
Here is my Controller
class Home extends CI_Controller {
function __construct()
{
parent::__construct();
$this->load->library('upload');
}
function index() {
$this->load->model('index_model');
$foldername['foldername'] = $this->index_model->getFoldernames();
$imagename['imagename'] = $this->index_model->getImagenames();
$this->load->view('layouts/home', $foldername, $imagename, array('error' => ' ' ));
}
function create() {
if(array_key_exists('createFolder',$_POST)){
$data = array(
'folderName' => $this->input->post('folderName')
);
$data = str_replace(' ', '_', $data);
$this->index_model->createFolder($data);
}
$this->foldercreated();
}
function delete() {
$this->load->model('index_model');
$foldername['foldername'] = $this->index_model->getFoldernames();
$this->load->view('layouts/delete', $foldername);
}
function deleteFolder() {
if($this->input->post('checkbox') !== false) {
$checkbox = $this->input->post('checkbox');
$this->index_model->deleteFolder($checkbox);
}
$this->folderdeleted();
}
function foldercreated() {
$this->load->view('partials/foldercreated');
}
function folderdeleted() {
$this->load->view('partials/folderdeleted');
}
function do_upload() {
$config['source_image'] = $this->upload->upload_path.$this->upload->file_name;
$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '0';
$config['max_width'] = '0';
$config['max_height'] = '0';
$this->upload->initialize($config);
$this->load->library('upload', $config);
if ( !$this->upload->do_upload('userfile'))
{
// echo '<p>IMAGE NOT WORKING</p>'. '<br/><p>' . $this->upload->display_errors() . '</p>';
$uploadError = $this->upload->display_errors();
$this->load->view('partials/upload_error', $uploadError);
}
else
{
// $imagefile = array('upload_data' => $this->upload->data());
$upload_data = $this->upload->data();
$db_data = array('imageName' => $upload_data['file_name']);
$this->index_model->addImage($db_data); // replace the tablename
$this->load->view('partials/upload_success', $db_data);
}
}
}
Here is my Model
function getFolderNames() {
$this->db->order_by('id', 'DESC');
$this->db->select('folderName');
$q = $this->db->get('senior');
if($q->num_rows() > 0) {
foreach ($q->result() as $row) {
$data[] = $row;
}
return $data;
}
}
function getImagenames() {
$this->db->order_by('id', 'DESC');
$this->db->select('imageName');
$query = $this->db->get('images');
if($query->num_rows() > 0) {
foreach ($query->result() as $row) {
$data[] = $row;
}
return $data;
}
}
And Here is my View
<div id="imagefiles">
<?php
foreach ($imagename as $img) { ?>
<div><?php echo $img->imageName; ?></div>
<?php } ?>
</div>

Answer 1

You aren't passing data to your view correctly.
You have this: $this->load->view('layouts/home', $foldername, $imagename, array('error' => ' ' ));
Your second parameter should be an array of data that you want to pass to your view. Try something like this:
$data['foldername'] = $this->index_model->getFoldernames();
$data['imagename'] = $this->index_model->getImagenames();
$this->load->view('layouts/home', $data);
Please check the CodeIgniter documentation for more info.