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<?php
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/**
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* @link http://www.yiiframework.com/
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* @copyright Copyright (c) 2008 Yii Software LLC
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* @license http://www.yiiframework.com/license/
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*/
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namespace yii\elasticsearch;
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use yii\base\InvalidCallException;
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use yii\base\InvalidConfigException;
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use yii\db\BaseActiveRecord;
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use yii\helpers\Inflector;
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use yii\helpers\Json;
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use yii\helpers\StringHelper;
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/**
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* ActiveRecord is the base class for classes representing relational data in terms of objects.
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*
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* This class implements the ActiveRecord pattern for the fulltext search and data storage
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* [elasticsearch](http://www.elasticsearch.org/).
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*
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* For defining a record a subclass should at least implement the [[attributes()]] method to define
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* attributes.
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* The primary key (the `_id` field in elasticsearch terms) is represented by `getId()` and `setId()`.
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* The primary key is not part of the attributes.
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*
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* The following is an example model called `Customer`:
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*
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* ```php
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* class Customer extends \yii\elasticsearch\ActiveRecord
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* {
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* public function attributes()
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* {
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* return ['id', 'name', 'address', 'registration_date'];
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* }
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* }
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* ```
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*
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* You may override [[index()]] and [[type()]] to define the index and type this record represents.
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*
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* @author Carsten Brandt <mail@cebe.cc>
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* @since 2.0
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*/
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class ActiveRecord extends BaseActiveRecord
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{
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private $_id;
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private $_score;
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private $_version;
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/**
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* Returns the database connection used by this AR class.
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* By default, the "elasticsearch" application component is used as the database connection.
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* You may override this method if you want to use a different database connection.
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* @return Connection the database connection used by this AR class.
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*/
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public static function getDb()
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{
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return \Yii::$app->getComponent('elasticsearch');
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}
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/**
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* @inheritdoc
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*/
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public static function find($q = null)
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{
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$query = static::createQuery();
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if (is_array($q)) {
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if (count($q) == 1 && (array_key_exists(ActiveRecord::PRIMARY_KEY_NAME, $q)) && $query->where === null) {
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$pk = $q[ActiveRecord::PRIMARY_KEY_NAME];
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if (is_array($pk)) {
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return static::mget($pk);
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} else {
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return static::get($pk);
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}
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}
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return $query->andWhere($q)->one();
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} elseif ($q !== null) {
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return static::get($q);
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}
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return $query;
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}
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/**
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* Gets a record by its primary key.
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*
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* @param mixed $primaryKey the primaryKey value
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* @param array $options options given in this parameter are passed to elasticsearch
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* as request URI parameters.
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* Please refer to the [elasticsearch documentation](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/docs-get.html)
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* for more details on these options.
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* @return static|null The record instance or null if it was not found.
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*/
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public static function get($primaryKey, $options = [])
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{
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if ($primaryKey === null) {
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return null;
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}
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$command = static::getDb()->createCommand();
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$result = $command->get(static::index(), static::type(), $primaryKey, $options);
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if ($result['exists']) {
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return static::create($result);
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}
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return null;
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}
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/**
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* Gets a list of records by its primary keys.
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*
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* @param array $primaryKeys an array of primaryKey values
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* @param array $options options given in this parameter are passed to elasticsearch
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* as request URI parameters.
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*
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* Please refer to the [elasticsearch documentation](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/docs-get.html)
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* for more details on these options.
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* @return static|null The record instance or null if it was not found.
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*/
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public static function mget($primaryKeys, $options = [])
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{
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if (empty($primaryKeys)) {
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return [];
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}
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$command = static::getDb()->createCommand();
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$result = $command->mget(static::index(), static::type(), $primaryKeys, $options);
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$models = [];
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foreach($result['docs'] as $doc) {
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if ($doc['exists']) {
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$models[] = static::create($doc);
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}
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}
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return $models;
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}
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// TODO add more like this feature http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-more-like-this.html
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// TODO add percolate functionality http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-percolate.html
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/**
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* @inheritdoc
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*/
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public static function createQuery()
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{
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return new ActiveQuery(['modelClass' => get_called_class()]);
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}
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/**
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* @inheritdoc
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*/
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public static function createActiveRelation($config = [])
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{
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return new ActiveRelation($config);
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}
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// TODO implement copy and move as pk change is not possible
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/**
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* @return float returns the score of this record when it was retrieved via a [[find()]] query.
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*/
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public function getScore()
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{
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return $this->_score;
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}
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/**
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* Sets the primary key
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* @param mixed $value
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* @throws \yii\base\InvalidCallException when record is not new
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*/
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public function setPrimaryKey($value)
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{
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$pk = static::primaryKey()[0];
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if ($this->getIsNewRecord() || $pk != '_id') {
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$this->$pk = $value;
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} else {
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throw new InvalidCallException('Changing the primaryKey of an already saved record is not allowed.');
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}
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}
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/**
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* @inheritdoc
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*/
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public function getPrimaryKey($asArray = false)
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{
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$pk = static::primaryKey()[0];
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if ($asArray) {
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return [$pk => $this->$pk];
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} else {
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return $this->$pk;
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}
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}
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/**
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* @inheritdoc
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*/
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public function getOldPrimaryKey($asArray = false)
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{
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$pk = static::primaryKey()[0];
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if ($this->getIsNewRecord()) {
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$id = null;
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} elseif ($pk == '_id') {
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$id = $this->_id;
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} else {
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$id = $this->getOldAttribute($pk);
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}
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if ($asArray) {
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return [$pk => $id];
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} else {
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return $id;
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}
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}
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/**
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* This method defines the attribute that uniquely identifies a record.
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*
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* The primaryKey for elasticsearch documents is the `_id` field by default. This field is not part of the
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* ActiveRecord attributes so you should never add `_id` to the list of [[attributes()|attributes]].
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*
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* You may overide this method to define the primary key name when you have defined
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* [path mapping](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/mapping-id-field.html)
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* for the `_id` field so that it is part of the `_source` and thus part of the [[attributes()|attributes]].
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*
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* Note that elasticsearch only supports _one_ attribute to be the primary key. However to match the signature
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* of the [[\yii\db\ActiveRecordInterface|ActiveRecordInterface]] this methods returns an array instead of a
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* single string.
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*
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* @return string[] array of primary key attributes. Only the first element of the array will be used.
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*/
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public static function primaryKey()
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{
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return ['_id'];
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}
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/**
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* Returns the list of all attribute names of the model.
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*
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* This method must be overridden by child classes to define available attributes.
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*
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* Attributes are names of fields of the corresponding elasticsearch document.
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* The primaryKey for elasticsearch documents is the `_id` field by default which is not part of the attributes.
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* You may define [path mapping](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/mapping-id-field.html)
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* for the `_id` field so that it is part of the `_source` fields and thus becomes part of the attributes.
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*
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* @return string[] list of attribute names.
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*/
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public function attributes()
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{
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throw new InvalidConfigException('The attributes() method of elasticsearch ActiveRecord has to be implemented by child classes.');
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}
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/**
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* @return string the name of the index this record is stored in.
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*/
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public static function index()
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{
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return Inflector::pluralize(Inflector::camel2id(StringHelper::basename(get_called_class()), '-'));
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}
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/**
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* @return string the name of the type of this record.
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*/
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public static function type()
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{
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return Inflector::camel2id(StringHelper::basename(get_called_class()), '-');
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}
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/**
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* Creates an active record object using a row of data.
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* This method is called by [[ActiveQuery]] to populate the query results
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* into Active Records. It is not meant to be used to create new records.
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* @param array $row attribute values (name => value)
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* @return ActiveRecord the newly created active record.
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*/
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public static function create($row)
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{
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$record = parent::create($row['_source']);
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$pk = static::primaryKey()[0];
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$record->$pk = $row['_id'];
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$record->_score = isset($row['_score']) ? $row['_score'] : null;
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$record->_version = isset($row['_version']) ? $row['_version'] : null; // TODO version should always be available...
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return $record;
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}
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/**
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* Inserts a document into the associated index using the attribute values of this record.
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*
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* This method performs the following steps in order:
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*
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* 1. call [[beforeValidate()]] when `$runValidation` is true. If validation
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* fails, it will skip the rest of the steps;
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* 2. call [[afterValidate()]] when `$runValidation` is true.
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* 3. call [[beforeSave()]]. If the method returns false, it will skip the
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* rest of the steps;
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* 4. insert the record into database. If this fails, it will skip the rest of the steps;
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* 5. call [[afterSave()]];
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*
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* In the above step 1, 2, 3 and 5, events [[EVENT_BEFORE_VALIDATE]],
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* [[EVENT_BEFORE_INSERT]], [[EVENT_AFTER_INSERT]] and [[EVENT_AFTER_VALIDATE]]
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* will be raised by the corresponding methods.
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*
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* Only the [[dirtyAttributes|changed attribute values]] will be inserted into database.
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*
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* If the [[primaryKey|primary key]] is not set (null) during insertion,
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* it will be populated with a
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* [randomly generated value](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/docs-index_.html#_automatic_id_generation)
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* after insertion.
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*
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* For example, to insert a customer record:
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*
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* ~~~
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* $customer = new Customer;
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* $customer->name = $name;
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* $customer->email = $email;
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* $customer->insert();
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* ~~~
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*
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* @param boolean $runValidation whether to perform validation before saving the record.
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* If the validation fails, the record will not be inserted into the database.
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* @param array $attributes list of attributes that need to be saved. Defaults to null,
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* meaning all attributes will be saved.
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* @param array $options options given in this parameter are passed to elasticsearch
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* as request URI parameters. These are among others:
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*
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* - `routing` define shard placement of this record.
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* - `parent` by giving the primaryKey of another record this defines a parent-child relation
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* - `timestamp` specifies the timestamp to store along with the document. Default is indexing time.
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*
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* Please refer to the [elasticsearch documentation](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/docs-index_.html)
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* for more details on these options.
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*
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* By default the `op_type` is set to `create`.
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* @return boolean whether the attributes are valid and the record is inserted successfully.
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*/
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public function insert($runValidation = true, $attributes = null, $options = ['op_type' => 'create'])
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{
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if ($runValidation && !$this->validate($attributes)) {
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return false;
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}
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if ($this->beforeSave(true)) {
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$values = $this->getDirtyAttributes($attributes);
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$response = static::getDb()->createCommand()->insert(
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static::index(),
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static::type(),
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$values,
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$this->getPrimaryKey(),
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$options
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);
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if (!isset($response['ok'])) {
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return false;
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}
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$pk = static::primaryKey()[0];
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$this->$pk = $response['_id'];
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if ($pk != '_id') {
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$values[$pk] = $response['_id'];
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}
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$this->_version = $response['_version'];
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$this->_score = null;
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$this->setOldAttributes($values);
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$this->afterSave(true);
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return true;
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}
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return false;
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}
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/**
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* Updates all records whos primary keys are given.
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* For example, to change the status to be 1 for all customers whose status is 2:
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*
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* ~~~
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* Customer::updateAll(array('status' => 1), array(2, 3, 4));
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* ~~~
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*
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* @param array $attributes attribute values (name-value pairs) to be saved into the table
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* @param array $condition the conditions that will be put in the WHERE part of the UPDATE SQL.
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* Please refer to [[ActiveQuery::where()]] on how to specify this parameter.
|
|
|
|
* @return integer the number of rows updated
|
|
|
|
*/
|
|
|
|
public static function updateAll($attributes, $condition = [])
|
|
|
|
{
|
|
|
|
$pkName = static::primaryKey()[0];
|
|
|
|
if (count($condition) == 1 && isset($condition[$pkName])) {
|
|
|
|
$primaryKeys = is_array($condition[$pkName]) ? $condition[$pkName] : [$condition[$pkName]];
|
|
|
|
} else {
|
|
|
|
$primaryKeys = static::find()->where($condition)->column($pkName); // TODO check whether this works with default pk _id
|
|
|
|
}
|
|
|
|
if (empty($primaryKeys)) {
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
$bulk = '';
|
|
|
|
foreach($primaryKeys as $pk) {
|
|
|
|
$action = Json::encode([
|
|
|
|
"update" => [
|
|
|
|
"_id" => $pk,
|
|
|
|
"_type" => static::type(),
|
|
|
|
"_index" => static::index(),
|
|
|
|
],
|
|
|
|
]);
|
|
|
|
$data = Json::encode([
|
|
|
|
"doc" => $attributes
|
|
|
|
]);
|
|
|
|
$bulk .= $action . "\n" . $data . "\n";
|
|
|
|
}
|
|
|
|
|
|
|
|
// TODO do this via command
|
|
|
|
$url = [static::index(), static::type(), '_bulk'];
|
|
|
|
$response = static::getDb()->post($url, [], $bulk);
|
|
|
|
$n=0;
|
|
|
|
$errors = [];
|
|
|
|
foreach($response['items'] as $item) {
|
|
|
|
if (isset($item['update']['error'])) {
|
|
|
|
$errors[] = $item['update'];
|
|
|
|
} elseif ($item['update']['ok']) {
|
|
|
|
$n++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (!empty($errors)) {
|
|
|
|
throw new Exception(__METHOD__ . ' failed updating records.', $errors);
|
|
|
|
}
|
|
|
|
return $n;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Updates all matching records using the provided counter changes and conditions.
|
|
|
|
* For example, to increment all customers' age by 1,
|
|
|
|
*
|
|
|
|
* ~~~
|
|
|
|
* Customer::updateAllCounters(['age' => 1]);
|
|
|
|
* ~~~
|
|
|
|
*
|
|
|
|
* @param array $counters the counters to be updated (attribute name => increment value).
|
|
|
|
* Use negative values if you want to decrement the counters.
|
|
|
|
* @param string|array $condition the conditions that will be put in the WHERE part of the UPDATE SQL.
|
|
|
|
* Please refer to [[Query::where()]] on how to specify this parameter.
|
|
|
|
* @return integer the number of rows updated
|
|
|
|
*/
|
|
|
|
public static function updateAllCounters($counters, $condition = [])
|
|
|
|
{
|
|
|
|
$pkName = static::primaryKey()[0];
|
|
|
|
if (count($condition) == 1 && isset($condition[$pkName])) {
|
|
|
|
$primaryKeys = is_array($condition[$pkName]) ? $condition[$pkName] : [$condition[$pkName]];
|
|
|
|
} else {
|
|
|
|
$primaryKeys = static::find()->where($condition)->column($pkName); // TODO check whether this works with default pk _id
|
|
|
|
}
|
|
|
|
if (empty($primaryKeys) || empty($counters)) {
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
$bulk = '';
|
|
|
|
foreach($primaryKeys as $pk) {
|
|
|
|
$action = Json::encode([
|
|
|
|
"update" => [
|
|
|
|
"_id" => $pk,
|
|
|
|
"_type" => static::type(),
|
|
|
|
"_index" => static::index(),
|
|
|
|
],
|
|
|
|
]);
|
|
|
|
$script = '';
|
|
|
|
foreach($counters as $counter => $value) {
|
|
|
|
$script .= "ctx._source.$counter += $counter;\n";
|
|
|
|
}
|
|
|
|
$data = Json::encode([
|
|
|
|
"script" => $script,
|
|
|
|
"params" => $counters
|
|
|
|
]);
|
|
|
|
$bulk .= $action . "\n" . $data . "\n";
|
|
|
|
}
|
|
|
|
|
|
|
|
// TODO do this via command
|
|
|
|
$url = [static::index(), static::type(), '_bulk'];
|
|
|
|
$response = static::getDb()->post($url, [], $bulk);
|
|
|
|
$n=0;
|
|
|
|
$errors = [];
|
|
|
|
foreach($response['items'] as $item) {
|
|
|
|
if (isset($item['update']['error'])) {
|
|
|
|
$errors[] = $item['update'];
|
|
|
|
} elseif ($item['update']['ok']) {
|
|
|
|
$n++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (!empty($errors)) {
|
|
|
|
throw new Exception(__METHOD__ . ' failed updating records counters.', $errors);
|
|
|
|
}
|
|
|
|
return $n;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Deletes rows in the table using the provided conditions.
|
|
|
|
* WARNING: If you do not specify any condition, this method will delete ALL rows in the table.
|
|
|
|
*
|
|
|
|
* For example, to delete all customers whose status is 3:
|
|
|
|
*
|
|
|
|
* ~~~
|
|
|
|
* Customer::deleteAll('status = 3');
|
|
|
|
* ~~~
|
|
|
|
*
|
|
|
|
* @param array $condition the conditions that will be put in the WHERE part of the DELETE SQL.
|
|
|
|
* Please refer to [[ActiveQuery::where()]] on how to specify this parameter.
|
|
|
|
* @return integer the number of rows deleted
|
|
|
|
*/
|
|
|
|
public static function deleteAll($condition = [])
|
|
|
|
{
|
|
|
|
$pkName = static::primaryKey()[0];
|
|
|
|
if (count($condition) == 1 && isset($condition[$pkName])) {
|
|
|
|
$primaryKeys = is_array($condition[$pkName]) ? $condition[$pkName] : [$condition[$pkName]];
|
|
|
|
} else {
|
|
|
|
$primaryKeys = static::find()->where($condition)->column($pkName); // TODO check whether this works with default pk _id
|
|
|
|
}
|
|
|
|
if (empty($primaryKeys)) {
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
$bulk = '';
|
|
|
|
foreach($primaryKeys as $pk) {
|
|
|
|
$bulk .= Json::encode([
|
|
|
|
"delete" => [
|
|
|
|
"_id" => $pk,
|
|
|
|
"_type" => static::type(),
|
|
|
|
"_index" => static::index(),
|
|
|
|
],
|
|
|
|
]) . "\n";
|
|
|
|
}
|
|
|
|
|
|
|
|
// TODO do this via command
|
|
|
|
$url = [static::index(), static::type(), '_bulk'];
|
|
|
|
$response = static::getDb()->post($url, [], $bulk);
|
|
|
|
$n=0;
|
|
|
|
$errors = [];
|
|
|
|
foreach($response['items'] as $item) {
|
|
|
|
if (isset($item['delete']['error'])) {
|
|
|
|
$errors[] = $item['delete'];
|
|
|
|
} elseif ($item['delete']['found'] && $item['delete']['ok']) {
|
|
|
|
$n++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (!empty($errors)) {
|
|
|
|
throw new Exception(__METHOD__ . ' failed deleting records.', $errors);
|
|
|
|
}
|
|
|
|
return $n;
|
|
|
|
}
|
|
|
|
}
|