salted-herring /
silverstripe-shortlist
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| Paths | 3 |
| Total Lines | 4 |
| Code Lines | 2 |
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| cc | 3 |
| eloc | 2 |
| nc | 3 |
| nop | 1 |
| 1 | <?php |
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| 2 | |||
| 3 | class ShortListController extends Page_Controller |
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| 4 | { |
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| 5 | private static $allowed_actions = array( |
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| 6 | 'renderList', |
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| 7 | 'performAction' |
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| 8 | ); |
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| 9 | |||
| 10 | private static $url_handlers = array( |
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| 11 | 'add' => 'performAction', |
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| 12 | 'remove' => 'performAction', |
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| 13 | '$URL!' => 'renderList', |
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| 14 | ); |
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| 15 | |||
| 16 | private static $extensions = array( |
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| 17 | 'ShortListPaginationExtension' |
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| 18 | ); |
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| 19 | |||
| 20 | public function init() |
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| 21 | { |
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| 22 | parent::init(); |
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| 23 | |||
| 24 | Session::start(); |
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| 25 | |||
| 26 | if ($this->request->getVar('page')) { |
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| 27 | $this->currentPage = $this->request->getVar('page'); |
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| 28 | } |
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| 29 | } |
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| 30 | |||
| 31 | /** |
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| 32 | * When landing on the homepage, if there is a shortlist for the current |
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| 33 | * user, redirect to the correct URL. Otherwise, 404. |
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| 34 | * */ |
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| 35 | public function index($request) |
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| 36 | { |
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| 37 | $shortlist = $this->getSessionShortList(); |
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| 38 | |||
| 39 | if (!empty($shortlist)) { |
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| 40 | return $this->redirect(Config::inst()->get('ShortList', 'URLSegment') . $shortlist->URL); |
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| 41 | } else { |
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| 42 | if (!$shortlist || !$shortlist->exists()) { |
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| 43 | $shortlist = new ShortList(); |
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| 44 | $shortlist->write(); |
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| 45 | } |
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| 46 | } |
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| 47 | |||
| 48 | // render with empty template. |
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| 49 | return $this->renderWith(array('Page', 'ShortList_empty')); |
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| 50 | } |
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| 51 | |||
| 52 | /** |
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| 53 | * Get the absolute URL of this controller. |
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| 54 | * */ |
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| 55 | public function Link($action = null) |
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| 56 | { |
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| 57 | $shortlist = $this->getSessionShortList(); |
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| 58 | $url = Config::inst()->get('ShortList', 'URLSegment'); |
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| 59 | |||
| 60 | if ($shortlist) { |
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| 61 | $url .= $shortlist->URL; |
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| 62 | } |
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| 63 | |||
| 64 | return $url; |
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| 65 | } |
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| 66 | |||
| 67 | public function renderList($request) |
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| 68 | { |
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| 69 | $shortlist = DataObject::get_one('ShortList', $filter = array('URL' => $request->param('URL'))); |
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| 70 | $link = false; |
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| 71 | $count = 0; |
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| 72 | |||
| 73 | if ($this->dontRender($shortlist, $request)) { |
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| 74 | return $this->httpError(404); |
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| 75 | } |
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| 76 | |||
| 77 | if ($shortlist && $shortlist->exists()) { |
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| 78 | $link = $shortlist->Link(); |
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| 79 | $count = $shortlist->ShortListItems()->Count(); |
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| 80 | } |
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| 81 | |||
| 82 | return $this->customise(array( |
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| 83 | 'ShortlistURL' => $link, |
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| 84 | 'ShortlistCount' => $count |
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| 85 | ))->renderWith( |
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| 86 | array('ShortList', 'Page') |
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| 87 | ); |
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| 88 | } |
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| 89 | |||
| 90 | public function performAction($request) |
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| 91 | { |
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| 92 | if ($this->dontPerformAction($request)) { |
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| 93 | return $this->httpError(404); |
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| 94 | } |
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| 95 | |||
| 96 | $action = $this->determineAction($request->getURL()); |
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| 97 | |||
| 98 | $status = $action->performAction( |
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| 99 | $shortlist = $this->getSessionShortList(), |
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| 100 | $ID = $request->getVar('id'), |
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| 101 | $type = $request->getVar('type'), |
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| 102 | $session = $request->getVar('s') |
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| 103 | ); |
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| 104 | |||
| 105 | if ($request->isAjax()) { |
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| 106 | return $this->renderAjax($session); |
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| 107 | } |
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| 108 | |||
| 109 | if (array_key_exists('output', $request->getVars())) { |
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| 110 | return $status; |
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| 111 | } |
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| 112 | |||
| 113 | return $this->redirectBack(); |
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| 114 | } |
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| 115 | |||
| 116 | |||
| 117 | /** |
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| 118 | * Get the number of items in the current short list. |
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| 119 | * |
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| 120 | * @param session The session to check & find a shortlist for. |
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| 121 | * @return mixed false if no session exists - else the number of items in the shortlist. |
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| 122 | * */ |
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| 123 | public function shortListCount($session = false) |
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| 124 | { |
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| 125 | if ($this->isSessionValid($session)) { |
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| 126 | return false; |
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| 127 | } |
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| 128 | |||
| 129 | $shortlist = $this->getSessionShortList(); |
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| 130 | |||
| 131 | if (!$shortlist || !$shortlist->exists()) { |
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| 132 | return 0; |
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| 133 | } |
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| 134 | |||
| 135 | return $shortlist->Items()->count(); |
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| 136 | } |
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| 137 | |||
| 138 | public static function getShortListSession() |
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| 139 | { |
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| 140 | return DataObject::get_one('ShortList', $filter = array('SessionID' => self::getSecurityToken())); |
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| 141 | } |
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| 142 | |||
| 143 | /** |
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| 144 | * Get the token to use to add/remove from shortlist. |
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| 145 | * */ |
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| 146 | public static function getSecurityToken() |
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| 147 | { |
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| 148 | return Utilities::getSecurityToken(); |
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| 149 | } |
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| 150 | |||
| 151 | /** |
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| 152 | * Determine the action based upon the url requested. |
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| 153 | * */ |
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| 154 | private function determineAction($url) |
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| 155 | { |
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| 156 | $matches = array(); |
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| 157 | preg_match('/remove|add/', $url, $matches); |
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| 158 | |||
| 159 | switch ($matches[0]) { |
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| 160 | case 'remove': |
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| 161 | return new RemoveFromshortlistAction(); |
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| 162 | case 'add': |
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| 163 | return new AddToshortlistAction(); |
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| 164 | default: |
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| 165 | return null; |
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| 166 | } |
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| 167 | } |
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| 168 | |||
| 169 | /** |
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| 170 | * Return a valid shortlist - or null. |
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| 171 | * */ |
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| 172 | private function getSessionShortList() |
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| 173 | { |
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| 174 | return DataObject::get_one('ShortList', |
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| 175 | $filter = array('SessionID' => self::getSecurityToken()), |
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| 176 | $cache = false |
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| 177 | ); |
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| 178 | } |
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| 179 | |||
| 180 | /** |
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| 181 | * Return the json encoded count & url for the current session |
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| 182 | * */ |
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| 183 | private function renderAjax($session) |
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| 184 | { |
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| 185 | $shortlist = $this->getSessionShortList(); |
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| 186 | $url = false; |
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| 188 | if ($shortlist && $shortlist->exists()) { |
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| 189 | $url = $shortlist->Link(); |
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| 190 | } |
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| 191 | |||
| 192 | return json_encode(array( |
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| 193 | 'count' => $this->shortListCount($session), |
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| 194 | 'url' => $url |
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| 195 | )); |
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| 196 | } |
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| 198 | /** |
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| 199 | * Don't render the template! |
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| 200 | * */ |
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| 201 | private function dontRender($shortlist, $request) |
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| 202 | { |
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| 203 | return is_null(self::getSecurityToken()) || !$request->param('URL') || !$shortlist || !$shortlist->exists(); |
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| 204 | } |
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| 206 | /** |
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| 207 | * Is this session valid? |
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| 208 | * */ |
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| 209 | private function isSessionValid($session) |
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| 210 | { |
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| 211 | return is_null(self::getSecurityToken()) || !$session || $session != self::getSecurityToken(); |
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| 212 | } |
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| 214 | /** |
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| 215 | * Don't perform an action. |
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| 216 | * */ |
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| 217 | private function dontPerformAction($request) |
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| 218 | { |
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| 219 | return is_null(self::getSecurityToken()) || !$request->getVar('id') || !$request->getVar('type') || |
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| 220 | !$request->getVar('s') || $request->getVar('s') != self::getSecurityToken(); |
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| 221 | } |
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| 222 | } |
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| 223 |
