Propel to Doctrine Code Snippets - doctrine

Question

This is a totally newbie question, so please bear with me. I am learning symfony from the online Jobeet and Askeet tutorials, but most of my hacks have involved Doctrine, so I am not familiar at all with Propel. I have managed so far by researching online and modifying to fit my needs, but I need a little help here.
Could someone give me a hand in translating these code snippets into Doctrine?
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;
}

Answer 1

I recommend you to forget Askeet tutorial, it is for the 1.0 release, and lots of things change since this version.
But, you can find a svn dump of a doctrine version of Askeet. You should use SVN to rebuild the repo (don't know how to perform that).
On an other hand, if you need to handle tag in sf1.4 project, I recommend you to use the plugin sfDoctrineActAsTaggablePlugin.