/**
*
* 取消某话题的关联话题
* @param int $tagId
*/
public function removeRelatedTopic($tagId)
{
$tagId = intval($tagId);
$childTags = $this->_getTagDs()->getTagByParent($tagId);
if (!$childTags) {
return true;
}
$childTagIds = array();
foreach ($childTags as $tag) {
$childTagIds[] = $tag['tag_id'];
$this->_getTagDs()->updateTagRelationByTagId($tagId, $tag['tag_id']);
}
Wind::import('SRV:tag.dm.PwTagDm');
$dm = new PwTagDm();
$dm->setParent(0);
$this->_getTagDs()->updateTags($childTagIds, $dm);
}
/**
* 添加关联话题
*
* @param int $tagId 关联到哪个话题Id
* @param string $tagName 话题名称
*/
private function _addRelateTag($tagId, $tagName)
{
$tagId = intval($tagId);
if ($tagId < 1 || !$tagName) {
return false;
}
$tag = $this->_getTagDs()->getTag($tagId);
if (!$tag) {
return false;
}
$relateTag = $this->_getTagDs()->getTagByName($tagName);
if (!$relateTag) {
$dm = new PwTagDm();
$dm->setName($tagName)->setCreateUid($this->loginUser->uid)->setParent($tagId);
$this->_getTagDs()->addTag($dm);
} else {
if ($relateTag['tag_id'] == $tagId) {
return false;
}
//检查被关联的话题是否存在子话题
if ($this->_getTagDs()->getTagByParent($relateTag['tag_id'])) {
return false;
}
$dm = new PwTagDm($relateTag['tag_id']);
$dm->setParent($tagId);
$this->_getTagDs()->updateTag($dm);
}
return true;
}
