这是一个完全新手的问题，所以请多多包涵。我正在从在线 Jobeet 和 Askeet 教程中学习 symfony，但我的大部分 hack 都涉及 Doctrine，所以我对 Propel 一点也不熟悉。到目前为止，我已经通过在线研究和修改以满足我的需求来管理，但我需要一些帮助。
有人可以帮我将这些代码片段翻译成 Doctrine 吗？
public function setTag($v)
{
parent::setTag($v);
$this->setNormalizedTag(Tag::normalize($v));
}
public function getTags()
{
$c = new Criteria();
$c->clearSelectColumns();
$c->addSelectColumn(QuestionTagPeer::NORMALIZED_TAG);
$c->add(QuestionTagPeer::QUESTION_ID, $this->getId());
$c->setDistinct();
$c->addAscendingOrderByColumn(QuestionTagPeer::NORMALIZED_TAG);
$tags = array();
$rs = QuestionTagPeer::doSelectRS($c);
while ($rs->next())
{
$tags[] = $rs->getString(1);
}
return $tags;
}
public function getPopularTags($max = 5)
{
$tags = array();
$con = Propel::getConnection();
$query = '
SELECT %s AS tag, COUNT(%s) AS count
FROM %s
WHERE %s = ?
GROUP BY %s
ORDER BY count DESC
';
$query = sprintf($query,
QuestionTagPeer::NORMALIZED_TAG,
QuestionTagPeer::NORMALIZED_TAG,
QuestionTagPeer::TABLE_NAME,
QuestionTagPeer::QUESTION_ID,
QuestionTagPeer::NORMALIZED_TAG
);
$stmt = $con->prepareStatement($query);
$stmt->setInt(1, $this->getId());
$stmt->setLimit($max);
$rs = $stmt->executeQuery();
while ($rs->next())
{
$tags[$rs->getString('tag')] = $rs->getInt('count');
}
return $tags;
}
public static function getTagsForUserLike($user_id, $tag, $max = 10)
{
$tags = array();
$con = Propel::getConnection();
$query = '
SELECT DISTINCT %s AS tag
FROM %s
WHERE %s = ? AND %s LIKE ?
ORDER BY %s
';
$query = sprintf($query,
QuestionTagPeer::TAG,
QuestionTagPeer::TABLE_NAME,
QuestionTagPeer::USER_ID,
QuestionTagPeer::TAG,
QuestionTagPeer::TAG
);
$stmt = $con->prepareStatement($query);
$stmt->setInt(1, $user_id);
$stmt->setString(2, $tag.'%');
$stmt->setLimit($max);
$rs = $stmt->executeQuery();
while ($rs->next())
{
$tags[] = $rs->getString('tag');
}
return $tags;
}