Professional CodeIgniter

Chapter 10: Launch

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Last Remaining Issues

You get a call from Claudia. She ’ s very excited because her team has successfully uploaded a great deal

of information onto the site. “ However, we have a little problem, ” she says.

It appears that whenever you create a new product in the system and don ’ t upload a file, the system

freezes. The same thing happens when you edit an existing product and don ’ t upload a new image for it.

“ One more thing, ” she says. “ I know it ’ s kind of a pain, but my mother got on the test site the other day,

and nothing worked for her. I talked to her about it, and I think she ’ s got a really old browser that

doesn ’ t support all the things we have on the site. ”

You assure Claudia that you will look into the file upload issue and that one of the last tasks you had

before launch was the installation of a JavaScript and cookie sniffer to ensure that everyone had a

browser that could handle the site ’ s AJAX.

Debugging File Uploads

The file upload issue is a simple one to fix. You have two model functions that do the heavy lifting of

adding/updating products in the database: addProduct() and updateProduct(). Both of these live in

the MProducts model.

Each of these functions contains a section in which you set the config parameters for the incoming file.

All you have to do is wrap those sections of the code that deal with file uploads with a simple test to see

if $_FILES has something in it, and then, right before each specific upload, check to see if there is a name

associated with each file. If there is, perform the upload. If not, move on. Here ’ s the code:

function updateProduct(){

$data = array(

‘name’ = > db_clean($_POST[‘name’]),

‘shortdesc’ = > db_clean($_POST[‘shortdesc’]),

‘longdesc’ = > db_clean($_POST[‘longdesc’],5000),

‘status’ = > db_clean($_POST[‘status’],8),

‘grouping’ = > db_clean($_POST[‘grouping’],16),

‘category_id’ = > id_clean($_POST[‘category_id’]),

‘featured’ = > db_clean($_POST[‘featured’],3),

‘price’ = > db_clean($_POST[‘price’],16)

);

if ($_FILES){

$config[‘upload_path’] = ‘./images/’;

$config[‘allowed_types’] = ‘gif|jpg|png’;

$config[‘max_size’] = ‘200’;

$config[‘remove_spaces’] = true;

$config[‘overwrite’] = false;

$config[‘max_width’] = ‘0’;

$config[‘max_height’] = ‘0’;

$this- > load- > library(‘upload’, $config);

if (strlen($_FILES[‘image’][‘image’])){

if(!$this- > upload- > do_upload(‘image’)){