Professional CodeIgniter

Chapter 10: Launch

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$this- > upload- > display_errors();

exit();

}

$image = $this- > upload- > data();

if ($image[‘file_name’]){

$data[‘image’] = “/images/”.$image[‘file_name’];

}

}

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

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

$this- > upload- > display_errors();

exit();

}

$thumb = $this- > upload- > data();

if ($thumb[‘file_name’]){

$data[‘thumbnail’] = “/images/”.$thumb[‘file_name’];

}

}

}

//snipped for brevity

}//end of function

Detecting JavaScript and Cookie Compatibility

You may be expecting a huge dump of code to see if JavaScript and cookies are enabled. There ’ s no way

that you ’ d want to go through with something like that at this point in the project, so the following

minimalist code is offered as a decent check for JavaScript compatibility:

< noscript >

You will not be able to view this site if JavaScript is not enabled.

Please turn on JavaScript to use this site.

< /noscript >

That ’ s it — that ’ s all you need to put in your template view, and you ’ re 100 percent covered. If they don ’ t

have JavaScript turned on, they get this message. There really is no way to test to see if JavaScript is

turned on (after all, if it is off, you can ’ t run a test to see if it is on). Even the following minimal test

seems pretty bizarre:

if (true){

//do something here, we must be on

}else{

//well shucks, JavaScript turned off, there’s no way to send an error message!

}

The < noscript > option is very straightforward and displays just the error message. You might want to

add some branding to it, like the Claudia ’ s Kids logo, maybe a phone number or other information, but

that ’ s about as good as it gets. (You could also contemplate removing the AJAX handlers from the

shopping carts, but that seems a bit much.)