silverstripe-blog/code/NewsletterSignupForm.php

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<?php
class NewsletterSignupForm extends Form {
/**
* Get the group code of the newsletter associated with the
* BlogHolder instance that this form was created from.
*/
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function get_group_code() {
if($controller = $this->controller) {
if($controller instanceof BlogHolder) {
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if($controller->Newsletter()) {
return $controller->Newsletter()->Group()->Code;
}
}
}
}
/**
* Create the NewsletterSignupForm.
* Take the fields and required fields from the extension role.
*/
function __construct($controller, $name) {
$member = singleton('Member');
$fields = $member->subscribeFields();
$validator = $member->subscribeRequiredFields();
$actions = new FieldSet(
new FormAction('subscribe', 'Subscribe')
);
parent::__construct($controller, $name, $fields, $actions, $validator);
}
/**
* NewsletterSignupForm action.
* Requires that the email address be submitted in the form.
*
* Checks if there is a member in the system by submitted email, and checks if
* that member has already signed up. If member has, then form gives message and
* redirects back. If not, then it carries on with the process.
*/
function subscribe($data, $form) {
$SQL_email = $data['Email'];
// Check if there is a current member of given email in data. Check if in group.
if($member = DataObject::get_one('Member', "`Member`.`Email` = '$SQL_email'")) {
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if($groupCode = $this->get_group_code()) {
if($group = DataObject::get_one('Group', "Code = '$groupCode'")) {
if($member->inGroup($group->ID)) {
$form->sessionMessage('You are already subscribed.', 'warning');
Director::redirectBack();
return false;
}
}
}
} else {
// Create a new member, as this is a new subscriber.
$member = new Member();
}
// Save the data into the member.
$form->saveInto($member);
// Hash the email of the subscriber and microtime, write the member.
$member->Hash = md5(microtime() . $member->Email);
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// If there is a group code found, add it to a field on the member for
// later use (when a member confirms to be added).
if($groupCode = $this->get_group_code()) {
$member->GroupCode = $groupCode;
}
// Write the member to the database.
$member->write();
// Create an array with data to populate in the email.
$populateArray = array();
$populateArray['Member'] = $member;
// If there is a group, populate a confirm link.
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if($this->get_group_code()) {
$populateArray['ConfirmLink'] = Director::absoluteBaseURL() . 'confirm-subscription/member/' . $member->Hash;
}
// Send off a confirmation email to the subscriber.
$email = new NewsletterSignupForm_Email();
$email->to = $member->Email;
$email->from = Email::getAdminEmail();
$email->subject = 'Thank you for subscribing';
$email->populateTemplate($populateArray);
$email->send();
// Display message, and redirect back.
$form->sessionMessage('You have been sent an email to confirm your subscription.', 'good');
Director::redirectBack();
}
}
class NewsletterSignupForm_Email extends Email_Template {
protected $ss_template = 'NewsletterSignupForm_Email';
}
?>