[英]Symfony2, doctrine2, createQuery, how to search IN array?
如何搜索數組? 請就以下情況(c)提供建議,尤其是建議。
我不明白我的錯誤在哪里。 我嘗試以幾種方式在數組中搜索Doctrine列關鍵字。 下面的代碼用於調試目的,在以下情況下說明了查詢本身。
public function findWhereKeyw($searchArr)
{
print_r('<br> searchstr = '); print_r($searchstr); print_r('</pre>');
print_r('<br> searchstr explode = '); print_r( explode(",",$searchstr) ); print_r('</pre>');
print_r('<br> searchArr implode = '); print_r( implode(",", $searchArr) ); print_r('</pre>');
//searchstr = opera, some
//searchstr explode = Array ( [0] => opera [1] => some )
//searchArr implode = opera,some
$query = ...//see cases below
$qsql=$query->getSQL();
$param=$query->getParameters();
print_r('<br>q= <pre>'); print_r($qsql); print_r('</pre>');
print_r('<br>p= <pre>'); print_r($param); print_r('</pre>');
try {
return $query->getResult();
//return $query->getSingleResult();
} catch (\Doctrine\ORM\NoResultException $e) {
return null;
}
a)以這種方式,我收到錯誤消息"Invalid parameter format, ? given, but :<name> or ?<num> expected."
$query = $this->getEntityManager()->createQuery(
'SELECT e.id, e.title FROM MeetingBundle:Event e WHERE e.keywords IN (?)',
explode(",",$searchstr) , array(\Doctrine\DBAL\Connection::PARAM_STR_ARRAY));
要么
$query = $this->getEntityManager()->createQuery(
'SELECT e.id, e.title FROM MeetingBundle:Event e WHERE e.keywords IN (?),
array( array( '.implode(", ",$searchArr).' ) ),
array(\Doctrine\DBAL\Connection::PARAM_STR_ARRAY)'
);
b)這樣,我得到空數組:
$qsrtr= 'SELECT e.id, e.title FROM MeetingBundle:Event e WHERE e.keywords IN (';
foreach ($searchArr as $val) {
$qsrtr.= ':'.$val.', ';
}
$qsrtr=rtrim($qsrtr, ", ");
$qsrtr.=')';
print_r('<br> qsrtr= </pre>'); print_r($qsrtr); print_r('</pre>');
$query = $this->getEntityManager()->createQuery( $qsrtr);
foreach ($searchArr as $val) {
$query->setParameter( $val, $val );
//OR $query->setParameter( ':'.$val, $val ); //this line gives also empty array, and the same parameteres object (p) as line above.
} //gives empty array as the result
打印結果:
qsrtr= SELECT e.id, e.title FROM MeetingBundle:Event e WHERE e.keywords IN (:opera, :some)
q= SELECT e0_.id AS id_0, e0_.title AS title_1 FROM event e0_ WHERE e0_.keywords IN (?, ?)
p= Doctrine\Common\Collections\ArrayCollection Object
(
[elements:Doctrine\Common\Collections\ArrayCollection:private] => Array
(
[0] => Doctrine\ORM\Query\Parameter Object
(
[name:Doctrine\ORM\Query\Parameter:private] => opera
[value:Doctrine\ORM\Query\Parameter:private] => opera
[type:Doctrine\ORM\Query\Parameter:private] => 2
)
[1] => Doctrine\ORM\Query\Parameter Object
(
[name:Doctrine\ORM\Query\Parameter:private] => some
[value:Doctrine\ORM\Query\Parameter:private] => some
[type:Doctrine\ORM\Query\Parameter:private] => 2
)
)
)
從查詢(q)和參數(p)決定,我應該能夠找到帶有關鍵字“ opera”的事件。 哪里可能是一個錯誤。 關鍵字字段是由逗號分隔的單詞組成的字符串。
這不是回答如何使用WHERE .. IN搜索。 但是使用LIKE可以解決問題,這實際上比WHERE-IN好得多。
簡而言之:
$events = $em->createQuery( 'SELECT e FROM MeetingBundle:Event e WHERE e.'.$colname.' LIKE :keyw' )
->setParameter('keyw', '%'.$val.'%')
->getResult(\Doctrine\ORM\AbstractQuery::HYDRATE_ARRAY);
該代碼必須保留到EventRepository和EventManager中。 C:\\ Bitnami \\ wampstack-5.5.30-0 \\ sym_prog \\ proj2_27 \\ SRC \\ MeetingBundle \\控制器\\ EventController.php
/**
* Search Event entities.
*
* @Route("/search", name="event_search")
* @Method("GET|POST")
* @Template("MeetingBundle:Event:ev_search.html.twig")
*/
public function searchAction(Request $request)
{
$post = Request::createFromGlobals();
$em = $this->getDoctrine()->getManager();
if ($post->request->has('submit')) {
$searchstr=$post->request->get('search_words');
$searchArr = $this->multiExplode( [' ',',',';','-'], $searchstr);
//print_r('searchArr before trim = </pre>'); print_r($searchArr); print_r('</pre>');
foreach ($searchArr as $index => $value) {
if(strlen(trim($value))==0){
unset($searchArr[$index]);
}
}
print_r('searchArr after trim = </pre>'); print_r($searchArr); print_r('</pre>');
$borstatus=$post->request->get('search_or_ck');
$bor = ($borstatus === 'on' ) ? 1 : 0;
$bandstatus=$post->request->get('search_and_ck');
$band = ($bandstatus === 'on' ) ? 1 : 0;
$bkeyw=$post->request->get('search_keyw'); // check in which table columns to perform search
$bkeywstatus = ($bkeyw === 'on' ) ? 1 : 0;
$btitle=$post->request->get('search_title');
$btitlestatus = ($btitle === 'on' ) ? 1 : 0;
$bdescr=$post->request->get('search_descr');
$bdescrstatus = ($bdescr === 'on' ) ? 1 : 0;
//dump($post);
print_r('<pre>'); print_r($post); print_r('</pre>');
print_r('********************** bkeyw = '); print_r($bkeyw); print_r('<br>');
print_r('********************** bkeyw = '); print_r($bkeywstatus); print_r('<br>');
$result=array(); //result['colname']=array( 'opera'=> [ '27' => (id='27', title='x',..), '24'=>(),.....]
foreach ($colnameArr as $colname){
$keywArr=array(); //keywArr['opera']= [ '27' => (id='27', title='x',..), '24'=>(),.....]
foreach ($searchArr as $val) {
$events = $em->createQuery( 'SELECT e FROM MeetingBundle:Event e WHERE e.'.$colname.' LIKE :keyw' )
->setParameter('keyw', '%'.$val.'%')
->getResult(\Doctrine\ORM\AbstractQuery::HYDRATE_ARRAY);
// $res = $em->getResult(); does not work
// $res without HYDRATE_ARRAY returns long object, but on this object getId() is not working
// print_r('<br>*******************result <pre>'); print_r($events); print_r('</pre>');// very long object
$identArr=array();//$identArr[ '27'] = (id='27', title='x',..)
foreach ($events as $event){
//print_r('<br>*******************result <pre>'); print_r($event'id'); print_r('</pre>');//using ->getResult(\Doctrine\ORM\AbstractQuery::HYDRATE_ARRAY);
// print_r('<br>*******************EVENT <pre>'); print_r($event.getId()); print_r('</pre>');// using ->getResult();
// print_r('<br>*******************EVENT <pre>'); print_r($event); print_r('</pre>');// very long object //using ->getResult();
$id = $event['id'];
// all results are unique, because id are unique
$identArr[strval($id)]=$event ; //$identArr[ '27'] = (id='27', title='x',..)
}//foreach ($events as $event)
$keywArr[$val]=$identArr; //keywArr['opera']= [ '27' => (id='27', title='x',..), '24'=>(),.....]
unset($identArr);
}//foreach ($searchArr as $val) {
$result[$colname] = $keywArr; //result['colname']=array( 'opera'=> [ '27' => (id='27', title='x',..), '24'=>(),.....]
unset($keywArr);
} //foreach ($colnameArr as $colname){
// than you have to analyse result, to extract events for cases use selected: OR search, AND search, OR search only in certain columns, AND search only in certain columns... This will give finalArray
return array ('res'=>finalArray, )
}
如果我理解得很好,則您正在嘗試使用DQL進行IN。 語法如下:
// From your Event repository
$qb = $this->createQueryBuilder('e');
$qb->where($qb->expr()->in('r.keywords', explode(",", $searchstr));
我假設您的字段關鍵字僅包含一個關鍵字。
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