1 <?php
  2 
  3 /**
  4  * Create a form that a user can use to unsubscribe from a mailing list
  5  *
  6  * @package newsletter
  7  */
  8 class Unsubscribe_Controller extends Page_Controller {
  9 
 10     public static $done_message;
 11 
 12     function __construct($data = null) {
 13         parent::__construct($data);
 14     }
 15 
 16     function RelativeLink($action = null) {
 17         return "unsubscribe/$action";
 18     }
 19 
 20     function index() {
 21         Session::clear("loggedInAs");
 22         Requirements::themedCSS("form");
 23 
 24         // if the email address is given
 25         $emailAddress = Convert::raw2sql($this->urlParams['Email']);
 26         $mailingListID = (int) $this->urlParams['MailingList'];
 27 
 28         if ($mailingListID) {
 29             $mailingList = DataObject::get_by_id("NewsletterType", $mailingListID);
 30         }
 31 
 32         // try to find the member with the email specified
 33         if ($emailAddress) {
 34             $member = DataObject::get_one('Member', "`Email` = '$emailAddress'");
 35         } else {
 36             $member = false;
 37         }
 38 
 39         // if the email address and mailing list is given in the URL and both are valid,
 40         // then unsubscribe the user
 41         if ($member && $mailingList && $member->inGroup($mailingList->GroupID)) {
 42             $this->unsubscribeFromList($member, $mailingList);
 43             $url = 'done/' . $member->Email . '/' . $mailingList->ID;
 44             Director::redirect(Director::absoluteBaseURL() . $this->RelativeLink() . $url);
 45             return;
 46         } elseif ($member) {
 47             $form = $this->MailingListForm($member, $this->urlParams['Email']);
 48         } else {
 49             $form = $this->EmailAddressForm();
 50         }
 51 
 52         return $this->customise(array(
 53             'Title' => _t('Unsubscribe.UNSUBSCRIBE', 'Unsubscribe'),
 54             'Content' => $form->forTemplate()
 55         ))->renderWith('Page');
 56     }
 57 
 58     function done() {
 59         $message = self::$done_message ? self::$done_message : _t('Unsubscribe.SUCCESS', 'Thank you. You have been removed from the selected groups');
 60 
 61         return $this->customise(array(
 62             'Title' => _t('Unsubscribe.UNSUBSCRIBED', 'Unsubscribed'),
 63             'Content' => $message
 64         ))->renderWith('Page');
 65     }
 66 
 67     /**
 68      * Show the lists for the user with the given email address
 69      * (action of Unsubscribe_EmailAddressForm)
 70      */
 71     function showlists($data, $form) {
 72         $email = Convert::raw2sql($data['Email']);
 73         $member = DataObject::get_one('Member', "`Email`='{$email}'");
 74 
 75         if ($member) {
 76             $form = $this->MailingListForm($member, $data['Email']);
 77         } else {
 78             $form->addErrorMessage('Email', 'Для этого адреса нет подписки на рассылки сайта', 'error');
 79             $form->setupFormErrors();
 80         }
 81 
 82         return $this->customise(array(
 83             'Content' => $form->forTemplate()
 84         ))->renderWith('Page');
 85     }
 86 
 87     /**
 88      * Unsubscribe the user from the given lists.
 89      * (action of Unsubscribe_MailingListForm)
 90      */
 91     function unsubscribe($data, $form) {
 92         $email = Convert::raw2sql(@$data['email']);
 93         $memberID = Session::get('UnsubscribeMemberID');
 94         $member = DataObject::get_by_id('Member', $memberID);
 95         if (!$member) {
 96             $member = DataObject::get_one('Member', "`EmailAddress` = '$email'");
 97         }
 98 
 99         if ($data['MailingLists']) {
100             foreach (array_keys($data['MailingLists']) as $listID) {
101 
102                 $nlType = DataObject::get_by_id('NewsletterType', $listID);
103                 $nlTypeTitles[] = $nlType->Title;
104                 $this->unsubscribeFromList($member, DataObject::get_by_id('NewsletterType', $listID));
105             }
106 
107             $sORp = (sizeof($nlTypeTitles) > 1) ? "newsletters " : "newsletter ";
108             //means single or plural
109             $nlTypeTitles = $sORp . implode(", ", $nlTypeTitles);
110             $url = "unsubscribe/done/" . $member->Email . "/" . $nlTypeTitles;
111             Director::redirect($url);
112         } else {
113             $form->addErrorMessage('MailingLists', _t('Unsubscribe.NOMLSELECTED', 'You need to select at least one mailing list to unsubscribe from.'), 'bad');
114             Director::redirectBack();
115         }
116     }
117 
118     function MailingListForm($member=null) {
119         if ($member && is_a($member, 'Member')) {
120             Session::set('UnsubscribeMemberID', $member->ID);
121         } else {
122             $memberID = Session::get('UnsubscribeMemberID');
123             $member = DataObject::get_by_id('Member', $memberID);
124         }
125 
126         if ($member)
127             $email = $member->Email;
128         return new Unsubscribe_MailingListForm($this, 'MailingListForm', $member, $email);
129     }
130 
131     function EmailAddressForm() {
132         $url = $this->requestParams['url'];
133         $email = (preg_match('!/unsubscribe/index/([^/]+)/?!', $url, $m)) ? $m[1] : '';
134         return new Form(
135                 $this,
136                 'EmailAddressForm',
137                 new FieldSet(new EmailField('Email', _t('Unsubscribe.EMAILADDR', 'Email address'), $email)),
138                 new FieldSet(new FormAction('showlists', _t('Unsubscribe.SHOWLISTS', 'Next'))),
139                 new RequiredFields('Email')
140         );
141     }
142 
143     protected function unsubscribeFromList($member, $list) {
144         // track unsubscriptions
145         $member->Groups()->remove($list->GroupID);
146         $unsubscribeRecord = new UnsubscribeRecord();
147         $unsubscribeRecord->unsubscribe($member, $list);
148     }
149 
150 }
151 
152 /**
153  * 2nd step form for the Unsubcribe page.
154  * The form will list all the mailing lists that the user is subscribed to.
155  *
156  * @package newsletter
157  */
158 class Unsubscribe_MailingListForm extends Form {
159 
160     function __construct($controller, $name, $member, $email) {
161         $fields = new FieldSet(new HiddenField('email', 'email', $member->Email));
162         $actions = new FieldSet();
163 
164         if ($member) {
165             // get all the mailing lists for this user
166             $lists = DataObject::get('NewsletterType', "`MemberID`='{$member->ID}'", null, "LEFT JOIN `Group_Members` USING(`GroupID`)");
167         } else {
168             $lists = false;
169         }
170 
171         if ($lists) {
172             $fields->push(new HeaderField('SubscribedToLabel', _t('Unsubscribe.SUBSCRIBEDTO', 'You are subscribed to the following lists:'),4));
173 
174             foreach ($lists as $list) {
175                 $fields->push(new CheckboxField("MailingLists[{$list->ID}]", $list->Title));
176             }
177 
178             $actions->push(new FormAction('unsubscribe', _t('Unsubscribe.UNSUBSCRIBE', 'Unsubscribe')));
179         } else {
180             $fields->push(new HeaderField('NotSubscribedToLabel', _t('Unsubscribe.NOTSUBSCRIBED', 'I\'m sorry, but doesn\'t appear to be in any of our mailing lists.'),4));
181         }
182 
183         parent::__construct($controller, $name, $fields, $actions);
184     }
185 
186 }
187 
188