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SolrQuery::collapse — Collapses the result set to a single document per group
Collapses the result set to a single document per group before it forwards the result set to the rest of the search components.
So all downstream components (faceting, highlighting, etc...) will work with the collapsed result set.
collapseFunction
Returns the current SolrQuery object
Example #1 SolrQuery::collapse() example
<?php
include "bootstrap.php";
$options = array
(
'hostname' => SOLR_SERVER_HOSTNAME,
'login' => SOLR_SERVER_USERNAME,
'password' => SOLR_SERVER_PASSWORD,
'port' => SOLR_SERVER_PORT,
'path' => SOLR_SERVER_PATH
);
$client = new SolrClient($options);
$query = new SolrQuery('*:*');
$collapseFunction = new SolrCollapseFunction('manu_id_s');
$collapseFunction
->setSize(2)
->setNullPolicy(SolrCollapseFunction::NULLPOLICY_IGNORE);
$query
->collapse($collapseFunction)
->setRows(4);
$queryResponse = $client->query($query);
$response = $queryResponse->getResponse();
print_r($response);
?>
以上例程的输出类似于：
SolrObject Object
(
[responseHeader] => SolrObject Object
(
[status] => 0
[QTime] => 1
[params] => SolrObject Object
(
[q] => *:*
[indent] => on
[fq] => {!collapse field=manu_id_s size=2 nullPolicy=ignore}
[rows] => 4
[version] => 2.2
[wt] => xml
)
)
[response] => SolrObject Object
(
[numFound] => 14
[start] => 0
[docs] => Array
(
[0] => SolrObject Object
(
[id] => SP2514N
[name] => Array
(
[0] => Samsung SpinPoint P120 SP2514N - hard drive - 250 GB - ATA-133
)
[manu] => Array
(
[0] => Samsung Electronics Co. Ltd.
)
[manu_id_s] => samsung
[cat] => Array
(
[0] => electronics
[1] => hard drive
)
[features] => Array
(
[0] => 7200RPM, 8MB cache, IDE Ultra ATA-133
[1] => NoiseGuard, SilentSeek technology, Fluid Dynamic Bearing (FDB) motor
)
[price] => Array
(
[0] => 92
)
[popularity] => Array
(
[0] => 6
)
[inStock] => Array
(
[0] => 1
)
[manufacturedate_dt] => 2006-02-13T15:26:37Z
[store] => Array
(
[0] => 35.0752,-97.032
)
[_version_] => 1510294336412057600
)
[1] => SolrObject Object
(
[id] => 6H500F0
[name] => Array
(
[0] => Maxtor DiamondMax 11 - hard drive - 500 GB - SATA-300
)
[manu] => Array
(
[0] => Maxtor Corp.
)
[manu_id_s] => maxtor
[cat] => Array
(
[0] => electronics
[1] => hard drive
)
[features] => Array
(
[0] => SATA 3.0Gb/s, NCQ
[1] => 8.5ms seek
[2] => 16MB cache
)
[price] => Array
(
[0] => 350
)
[popularity] => Array
(
[0] => 6
)
[inStock] => Array
(
[0] => 1
)
[store] => Array
(
[0] => 45.17614,-93.87341
)
[manufacturedate_dt] => 2006-02-13T15:26:37Z
[_version_] => 1510294336449806336
)
[2] => SolrObject Object
(
[id] => F8V7067-APL-KIT
[name] => Array
(
[0] => Belkin Mobile Power Cord for iPod w/ Dock
)
[manu] => Array
(
[0] => Belkin
)
[manu_id_s] => belkin
[cat] => Array
(
[0] => electronics
[1] => connector
)
[features] => Array
(
[0] => car power adapter, white
)
[weight] => Array
(
[0] => 4
)
[price] => Array
(
[0] => 19.95
)
[popularity] => Array
(
[0] => 1
)
[inStock] => Array
(
[0] =>
)
[store] => Array
(
[0] => 45.18014,-93.87741
)
[manufacturedate_dt] => 2005-08-01T16:30:25Z
[_version_] => 1510294336458194944
)
[3] => SolrObject Object
(
[id] => MA147LL/A
[name] => Array
(
[0] => Apple 60 GB iPod with Video Playback Black
)
[manu] => Array
(
[0] => Apple Computer Inc.
)
[manu_id_s] => apple
[cat] => Array
(
[0] => electronics
[1] => music
)
[features] => Array
(
[0] => iTunes, Podcasts, Audiobooks
[1] => Stores up to 15,000 songs, 25,000 photos, or 150 hours of video
[2] => 2.5-inch, 320x240 color TFT LCD display with LED backlight
[3] => Up to 20 hours of battery life
[4] => Plays AAC, MP3, WAV, AIFF, Audible, Apple Lossless, H.264 video
[5] => Notes, Calendar, Phone book, Hold button, Date display, Photo wallet, Built-in games, JPEG photo playback, Upgradeable firmware, USB 2.0 compatibility, Playback speed control, Rechargeable capability, Battery level indication
)
[includes] => Array
(
[0] => earbud headphones, USB cable
)
[weight] => Array
(
[0] => 5.5
)
[price] => Array
(
[0] => 399
)
[popularity] => Array
(
[0] => 10
)
[inStock] => Array
(
[0] => 1
)
[store] => Array
(
[0] => 37.7752,-100.0232
)
[manufacturedate_dt] => 2005-10-12T08:00:00Z
[_version_] => 1510294336562003968
)
)
)
)