function watch($id = null)
{
if (is_null($id)) {
$this->Session->setFlash('Repository not found');
$this->redirect('/');
}
if (!$this->isLoggedIn()) {
$this->redirect(array('controller' => 'login', 'action' => 'index'));
}
$user = $this->getConnectedUser();
$repo = $this->RepositoriesUser->find('first', array('conditions' => array('user_id' => $user['User']['id'], 'repository_id' => $id), 'recursive' => -1));
if (empty($repo)) {
$this->Session->setFlash('Repository not found');
$this->redirect('/');
}
$watching = $repo['RepositoriesUser']['watching'];
$this->RepositoriesUser->read(null, $repo['RepositoriesUser']['id']);
$this->RepositoriesUser->set('watching', !$watching);
$this->RepositoriesUser->save();
if ($watching) {
$msg = "Repository removed from watchlist";
} else {
$msg = "Repository added to watchlist";
}
$this->Session->setFlash($msg);
$this->redirect(array('action' => 'set_repository_by_id', $id));
}
/**
* check if user points are enough to action required
* or anon user who doesnt require any points
* - upload
* - download
* - earn (does not require any points)
*
* redirects if unexpected behavior
*
* @return true if user needs a challenge, false otherwise
*/
function _check_if_challenge()
{
$action = $this->Session->read('Action.type');
$repo = $this->getCurrentRepository();
$user = $this->getConnectedUser();
/*
* anon doesnt need points check
* always need a challenge
*/
if ($user == $this->anonymous) {
return true;
}
$upload = strcmp($action, 'upload') == 0;
$download = strcmp($action, 'download') == 0;
$earn = strcmp($action, 'earn') == 0;
if ($earn) {
/*
* earn points:
* go to challenge
*/
return true;
} else {
/*
* download or upload:
* check points
*/
if ($download) {
if ($this->Session->check('Search.count')) {
$count = $this->Session->read('Search.count');
// determine $cost
$cost = $repo['Repository']['download_cost'] * $count;
} else {
$this->_cancel_everything('Please, first perform a search to download documents');
}
} elseif ($upload) {
// determine $cost
$cost = $repo['Repository']['upload_cost'];
} else {
// ERROR invalid action
$this->_cancel_everything('Action not recognized');
}
// check $cost against user points
$user_points = $this->RepositoriesUser->find('first', array('conditions' => array('RepositoriesUser.repository_id' => $repo['Repository']['id'], 'RepositoriesUser.user_id' => $user['User']['id']), 'fields' => array('points'), 'recursive' => -1));
$user_points = $user_points['RepositoriesUser']['points'];
//if user points > cost, doesnt need a challenge
if ($user_points >= $cost) {
return false;
} else {
return true;
}
}
}
