Professional CodeIgniter

Chapter 8: Last-Minute Upgrades

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function removeSubcriber($id){

$this- > db- > where(‘id’, $id);

$this- > db- > delete(‘subscribers’);

}

function getAllSubscribers(){

$data = array();

$Q = $this- > db- > get(‘subscribers’);

if ($Q- > num_rows() > 0){

foreach ($Q- > result_array() as $row){

$data[] = $row;

}

}

$Q- > free_result();

return $data;

}

}//end class

? >

Don ’ t forget to autoload it:

$autoload[‘model’] = array(‘MCats’, ‘MProducts’, ‘MOrders’,’MAdmins’,’MSizes’,

‘MColors’, ‘MPages’, ‘MSubscribers’);

Adding a subscribe() Function

As you might imagine, you ’ re going to create a form that will post data to welcome/subscribe. Before

creating that form, it may be helpful to build out that controller function first.

Basically, the idea behind this function is to take the incoming POST data and post that data to the

Subscribers table. First you want to make sure that the e - mail in question is valid (with a little help from

the e - mail helper provided by CodeIgniter). If the e - mail is invalid or if the form doesn ’ t have a name

filled in, then redirect the user to the home page with an error message. Otherwise, run

createSubscriber() , and display a confirmation message.

Here is the subscribe() function in its entirety:

function subscribe(){

if ($this- > input- > post(‘email’)){

$this- > load- > helper(‘email’);

if (!valid_email($this- > input- > post(‘email’))){

$this- > session- > set_flashdata(‘subscribe_msg’, ‘Invalid email. Please try

again!’);

redirect(‘welcome/index’,’refresh’);

}