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facet.rst

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Facets

Facet builds FACET clauses for grouped aggregations.

Building a Facet

<?php

use Foolz\SphinxQL\Facet;

$facet = (new Facet($conn))
    ->facet(['gid'])
    ->orderBy('gid', 'ASC');

Common compiled outputs from tests:

  • facet(['gid']) -> FACET gid
  • facet(['gid', 'title', 'content']) -> FACET gid, title, content
  • facet(['alias' => 'gid']) -> FACET gid AS alias
  • facetFunction('COUNT', 'gid') -> FACET COUNT(gid)
  • facetFunction('INTERVAL', ['price', 200, 400, 600, 800]) -> FACET INTERVAL(price,200,400,600,800)

Using FACET with SELECT

FACET is returned as an extra result set, so use executeBatch().

<?php

use Foolz\SphinxQL\Facet;
use Foolz\SphinxQL\SphinxQL;

$batch = (new SphinxQL($conn))
    ->select()
    ->from('rt')
    ->facet(
        (new Facet($conn))
            ->facet(['gid'])
            ->orderBy('gid', 'ASC')
    )
    ->executeBatch()
    ->getStored();

// $batch[0] => SELECT rows
// $batch[1] => FACET rows with gid + count(*)

Advanced Facet Options

Add BY:

$facet = (new Facet($conn))
    ->facet(['gid', 'title', 'content'])
    ->by('gid');

Sort by expression:

$facet = (new Facet($conn))
    ->facet(['gid', 'title'])
    ->orderByFunction('COUNT', '*', 'DESC');

Paginate facet rows:

$facet = (new Facet($conn))
    ->facet(['gid', 'title'])
    ->orderByFunction('COUNT', '*', 'DESC')
    ->limit(5, 5);

Validation Notes

Facet throws SphinxQLException for invalid inputs such as:

  • empty facet() columns
  • invalid order directions
  • invalid limit() / offset()
  • facetFunction() without parameters