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POhow to execute JOIN query with 3 tables, order by count of ID
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13565441
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2012-11-26T13:03:59.750
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I have 3 tables: Event, EventSeans, Firms. I need to return Firm, and order by count Event in this Firm Event entity: <pre><code> /** * @ORM\OneToMany( * targetEntity="EventSeans", * cascade={"persist", "remove", "merge"}, * mappedBy="event" * ) * @ORM\OrderBy({"start_time"= "ASC"}) */ protected $seanses; </code></pre> EventSeans entity: <pre><code> /** * @ORM\ManyToOne( * targetEntity="Application\GidBundle\Entity\Firm") */ protected $place; /** * @ORM\ManyToOne( * targetEntity="Event", * inversedBy="seanses" * )* */ protected $event; </code></pre> I tried this: <pre><code> $qb ->select('f, count(e.id) cnt') ->from('AfishaBundle:Event', 'e') ->from('GidBundle:Firm', 'f') ->leftJoin('e.seanses', 's') ->where('s.place = f.id') ->orderBy('cnt','ASC') ->setMaxResults(3) ; </code></pre> EDIT i add relation in Firm Entity <pre><code> /** * @ORM\OneToMany( * targetEntity="Application\AfishaBundle\Entity\EventSeans", * cascade={"persist", "remove", "merge"}, * mappedBy="place" * ) * @ORM\OrderBy({"start_time"= "ASC"}) */ protected $seanses; </code></pre> and my query is <pre><code> $qb ->select('f, count(e.id) cnt') ->from('GidBundle:Firm', 'f') ->leftJoin('f.seanses','s') ->leftJoin('s.event', 'e') ->orderBy('cnt', 'DESC') ->groupBy('f.id') ->setMaxResults(20) ; </code></pre> But cnt - is a count of my seanses... It's nothing changes:( add <pre><code>CREATE TABLE IF NOT EXISTS `afisha_event_seanses` ( `id` int(11) NOT NULL AUTO_INCREMENT, `place_id` int(11) DEFAULT NULL, `event_id` int(11) DEFAULT NULL, `start_time` datetime NOT NULL, `allday` tinyint(1) NOT NULL, `cost` int(11) NOT NULL, `hall` varchar(255) NOT NULL, `region` varchar(255) NOT NULL, `end_time` datetime DEFAULT NULL, PRIMARY KEY (`id`), KEY `IDX_3164A4B7DA6A219` (`place_id`), KEY `IDX_3164A4B771F7E88B` (`event_id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=8 ; ALTER TABLE `afisha_event_seanses` ADD CONSTRAINT `FK_3164A4B771F7E88B` FOREIGN KEY (`event_id`) REFERENCES `afisha_events` (`id`), ADD CONSTRAINT `FK_3164A4B7DA6A219` FOREIGN KEY (`place_id`) REFERENCES `gid_firms` (`id`); </code></pre>
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<php><symfony><doctrine2><dql>
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how to execute JOIN query with 3 tables, order by count of ID
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.