* @return string $url 图片url地址
*/
function activity_activityicon_hook($hook, $entity_type, $returnvalue, $params) {
global $CONFIG;
if ((!$returnvalue) && ($hook == 'entity:icon:url') && ($params['entity'] instanceof Activity)) {
$entity = $params['entity'];
$type = $entity->type;
$viewtype = $params['viewtype'];
$size = $params['size'];
if ($icontime = $entity->icontime) {
$icontime = "{$icontime}";
} else {
$icontime = "default";
}
$filehandler = new ElggFile();
$filehandler->owner_guid = $entity->owner_guid;
$filehandler->setFilename("activity/" . $entity->guid . $size . ".jpg");
if ($filehandler->exists()) {
$url = $CONFIG->url . "pg/activityicon/{$entity->guid}/$size/$icontime.jpg";
return $url;
}
}
}
这个方法会返回一个url，这个url就是src的地址。url返回到get_entity_icon_url后，会根据图片尺寸继续加工，返回最终url。这样就获取到了src地址。
