Yii2 Behavior for working with Sphinx RealTime index

How to attach

namespace modules\blog\models;
use modules\blog\Module;
use modules\blog\components\RtSphinxBehavior;

class Post extends \yii\db\ActiveRecord {

    public function behaviors() {
        return [
                    'rtSphinxBehavior' => [
                        'class' => RtSphinxBehavior::className(),
                        'rtIndex' => Yii::$app->getModule('blog')->getParam('sphinxRtIndex'),
                        'idAttributeName' => 'id',
                        'rtFieldNames' => ['name', 'title', 'description', 'text'],
                        'rtAttributeNames' => ['category_id'],
                        'enabled' => Yii::$app->getModule('blog')->getParam('isSphinxEnabled'),
                    ],
                ];   
    }

In this very example the rtIndex parameter gets value from blog-module paramener sphinxRtIndex. Then provide the names of attributes and fields from our main document fetch query, that is described in sphinx.conf in the source block.

How to configure RT index for Sphinx

source is_src
{
	type			= mysql

	sql_host		= localhost
	sql_user		= root
	sql_pass		=
	sql_db			= cms_db
	sql_port		= 3306	# optional, default is 3306

	sql_query_pre = SET NAMES utf8
    sql_query_pre = SET CHARACTER SET utf8
	
	sql_query = \
		SELECT id, category_id, UNIX_TIMESTAMP(date) AS date, name, title, description, text \
		FROM post

	sql_attr_uint		= category_id
	
	sql_field_string    = name
	sql_field_string    = title
	sql_field_string    = description	
	sql_field_string    = text	
}

The configuration block for RT index looks like this:

index is_rt
{
	type			= rt
	docinfo			= extern
	
	rt_mem_limit	= 512M

	path			= /sphinx/data/is_rt
	stopwords		= /sphinx/stop/words.txt
	dict			= keywords
	morphology		= stem_ru, stem_en, soundex
	min_word_len	= 3
	min_prefix_len 	= 3
	expand_keywords	= 1
	index_exact_words = 1
	html_strip 		= 1
	
	rt_field = name 	
	rt_field = title
	rt_field = description
	rt_field = text
	
	rt_attr_uint = category_id
}

How it works

RtSphinxBehavior triggers on insert | update | delete events, processed by ActiveRecord class.

Resume

In the mentioned above example the RtSphinxBehavior.php was placed under modules\blog\components namespace. Such structure describes the situation when the behavior is used only for one module. Here it is the blogModule.