How to print single value of entity without dumping the whole object? - php

Question

I want to get one single value from entity.Can anyone help me here.
Here is my code.Please let me know what is missing here.
$query = $em->createQuery("SELECT e FROM AdminBundle:MailTemplates e WHERE e.keyword = '" .$keywordVal."'");
$query->execute();
$result = $query->getResult();
echo $result ->getId();
Here i want the 'id'.

Answer 1

This is noted in the documentation how you can do this.
So given you're code this will become:
$query = $em->createQuery("SELECT e.id FROM AdminBundle:MailTemplates e WHERE e.keyword = ?1");
$query->setParameter(1, $keywordVal);
$query->execute();
$result = $query->getResult(); // array of MailTemplates ids
Note: I also made use of setParameters instead of setting the value directly in the query.

Answer 2

In your controller:
$this->get('database_connection')->fetchColumn('select id from mail_templates where...');
That's much better for performance and much easier if you don't want to have a deal with query builder and other doctrine orm stuff.

Answer 3

Using the query builder you could do...
$queryBuilder = $em->createQueryBuilder('e');
$queryBuilder
->select('e.yourColumn')
// This will return just this column
// Alternatively you could omit any select to return the whole object
// that you could then use like $object->getYourColumn() if you so chose
->where($queryBuilder->expr()->eq('e.keyword', ':keyword'))
->setParameter('keyword', $keyword)
;
return $queryBuilder
->getQuery()
->getResult();

Answer 4

try this on loading Entities instead of creating own queries
Loading the entity with the Repository.
$rep = $this->getDoctrine()->getManager()->getRepository("Bundlename:Entity");
//find one by keyword -> single entity
$entity = $rep->findOneBy(array('keyword' => $keyword));
//find all by keyword - Array of entities
$result = $rep->findBy(array('keyword' => $keyword));