public function searchInstagram()
{
$instagram = new Instagram\Instagram();
$instagram->setClientID(\Yii::$app->params['instagram']['client_id']);
$end_at = $this->start_at + $this->duration * 60;
$params = array('min_timestamp' => $this->start_at, 'max_timestamp' => $end_at, 'distance' => $this->distance, 'count' => 50);
$media = $instagram->searchMedia($this->latitude, $this->longitude, $params);
foreach ($media as $m) {
if (isset($m->caption->text)) {
$caption = $m->caption->text;
} else {
$caption = '';
}
$i = new Gram();
$i->add($this->id, $m->user->username, $m->link, $m->created_time, $m->images->thumbnail->url, $caption);
}
}
