Class yii\elasticsearch\Query

Inheritanceyii\elasticsearch\Query » yii\base\Component » yii\base\Object
Implementsyii\base\Configurable, yii\db\QueryInterface
Uses Traitsyii\db\QueryTrait
Subclassesyii\elasticsearch\ActiveQuery
Available since version2.0
Source Code https://github.com/yiisoft/yii2-elasticsearch/blob/master/Query.php

Query represents a query to the search API of elasticsearch.

Query provides a set of methods to facilitate the specification of different parameters of the query. These methods can be chained together.

By calling createCommand(), we can get a yii\elasticsearch\Command instance which can be further used to perform/execute the DB query against a database.

For example,

$query = new Query;
$query->fields('id, name')
    ->from('myindex', 'users')
    ->limit(10);
// build and execute the query
$command = $query->createCommand();
$rows = $command->search(); // this way you get the raw output of elasticsearch.

You would normally call $query->search() instead of creating a command as this method adds the indexBy() feature and also removes some inconsistencies from the response.

Query also provides some methods to easier get some parts of the result only:

  • one(): returns a single record populated with the first row of data.
  • all(): returns all records based on the query results.
  • count(): returns the number of records.
  • scalar(): returns the value of the first column in the first row of the query result.
  • column(): returns the value of the first column in the query result.
  • exists(): returns a value indicating whether the query result has data or not.

NOTE: elasticsearch limits the number of records returned to 10 records by default. If you expect to get more records you should specify limit explicitly.

Public Properties

Hide inherited properties

PropertyTypeDescriptionDefined By
$aggregations array List of aggregations to add to this query. yii\elasticsearch\Query
$behaviors yii\base\Behavior[] List of behaviors attached to this component yii\base\Component
$emulateExecution boolean Whether to emulate the actual query execution, returning empty or false results. yii\db\QueryTrait
$explain boolean Enables explanation for each hit on how its score was computed. yii\elasticsearch\Query
$fields array The fields being retrieved from the documents. yii\elasticsearch\Query
$filter array|string The filter part of this search query. yii\elasticsearch\Query
$highlight array The highlight part of this search query. yii\elasticsearch\Query
$index string|array The index to retrieve data from. yii\elasticsearch\Query
$indexBy string|callable The name of the column by which the query results should be indexed by. yii\db\QueryTrait
$limit integer|yii\db\Expression Maximum number of records to be returned. yii\db\QueryTrait
$minScore float Exclude documents which have a _score less than the minimum specified in min_score yii\elasticsearch\Query
$offset integer|yii\db\Expression Zero-based offset from where the records are to be returned. yii\db\QueryTrait
$options array List of options that will passed to commands created by this query. yii\elasticsearch\Query
$orderBy array How to sort the query results. yii\db\QueryTrait
$postFilter string|array The post_filter part of the search query for differentially filter search results and aggregations. yii\elasticsearch\Query
$query array|string The query part of this search query. yii\elasticsearch\Query
$source array This option controls how the _source field is returned from the documents. yii\elasticsearch\Query
$stats array The 'stats' part of the query. yii\elasticsearch\Query
$suggest array List of suggesters to add to this query. yii\elasticsearch\Query
$timeout integer A search timeout, bounding the search request to be executed within the specified time value and bail with the hits accumulated up to that point when expired. yii\elasticsearch\Query
$type string|array The type to retrieve data from. yii\elasticsearch\Query
$where string|array Query condition. yii\db\QueryTrait

Public Methods

Hide inherited methods

MethodDescriptionDefined By
__call() Calls the named method which is not a class method. yii\base\Component
__clone() This method is called after the object is created by cloning an existing one. yii\base\Component
__construct() Constructor. yii\base\Object
__get() Returns the value of a component property. yii\base\Component
__isset() Checks if a property is set, i.e. defined and not null. yii\base\Component
__set() Sets the value of a component property. yii\base\Component
__unset() Sets a component property to be null. yii\base\Component
addAgg() yii\elasticsearch\Query
addAggregate() Adds an aggregation to this query. Supports nested aggregations. yii\elasticsearch\Query
addAggregation() yii\elasticsearch\Query
addOptions() Adds more options, overwriting existing options. yii\elasticsearch\Query
addOrderBy() Adds additional ORDER BY columns to the query. yii\db\QueryTrait
addSuggester() Adds a suggester to this query. yii\elasticsearch\Query
all() Executes the query and returns all results as an array. yii\elasticsearch\Query
andFilterWhere() Adds an additional WHERE condition to the existing one but ignores empty operands. yii\db\QueryTrait
andWhere() Adds an additional WHERE condition to the existing one. yii\db\QueryTrait
attachBehavior() Attaches a behavior to this component. yii\base\Component
attachBehaviors() Attaches a list of behaviors to the component. yii\base\Component
batch() Starts a batch query. yii\elasticsearch\Query
behaviors() Returns a list of behaviors that this component should behave as. yii\base\Component
canGetProperty() Returns a value indicating whether a property can be read. yii\base\Component
canSetProperty() Returns a value indicating whether a property can be set. yii\base\Component
className() Returns the fully qualified name of this class. yii\base\Object
column() Executes the query and returns the first column of the result. yii\elasticsearch\Query
count() Returns the number of records. yii\elasticsearch\Query
createCommand() Creates a DB command that can be used to execute this query. yii\elasticsearch\Query
delete() Executes the query and deletes all matching documents. yii\elasticsearch\Query
detachBehavior() Detaches a behavior from the component. yii\base\Component
detachBehaviors() Detaches all behaviors from the component. yii\base\Component
each() Starts a batch query and retrieves data row by row. yii\elasticsearch\Query
emulateExecution() Sets whether to emulate query execution, preventing any interaction with data storage. yii\db\QueryTrait
ensureBehaviors() Makes sure that the behaviors declared in behaviors() are attached to this component. yii\base\Component
exists() Returns a value indicating whether the query result contains any row of data. yii\elasticsearch\Query
explain() Explain for how the score of each document was computer yii\elasticsearch\Query
fields() Sets the fields to retrieve from the documents. yii\elasticsearch\Query
filter() Sets the filter part of this search query. yii\elasticsearch\Query
filterWhere() Sets the WHERE part of the query but ignores empty operands. yii\db\QueryTrait
from() Sets the index and type to retrieve documents from. yii\elasticsearch\Query
getBehavior() Returns the named behavior object. yii\base\Component
getBehaviors() Returns all behaviors attached to this component. yii\base\Component
hasEventHandlers() Returns a value indicating whether there is any handler attached to the named event. yii\base\Component
hasMethod() Returns a value indicating whether a method is defined. yii\base\Component
hasProperty() Returns a value indicating whether a property is defined for this component. yii\base\Component
highlight() Sets a highlight parameters to retrieve from the documents. yii\elasticsearch\Query
indexBy() Sets the indexBy() property. yii\db\QueryTrait
init() Initializes the object. yii\elasticsearch\Query
limit() Sets the LIMIT part of the query. yii\db\QueryTrait
minScore() yii\elasticsearch\Query
off() Detaches an existing event handler from this component. yii\base\Component
offset() Sets the OFFSET part of the query. yii\db\QueryTrait
on() Attaches an event handler to an event. yii\base\Component
one() Executes the query and returns a single row of result. yii\elasticsearch\Query
options() Sets the options to be passed to the command created by this query. yii\elasticsearch\Query
orFilterWhere() Adds an additional WHERE condition to the existing one but ignores empty operands. yii\db\QueryTrait
orWhere() Adds an additional WHERE condition to the existing one. yii\db\QueryTrait
orderBy() Sets the ORDER BY part of the query. yii\db\QueryTrait
populate() Converts the raw query results into the format as specified by this query. yii\elasticsearch\Query
postFilter() Set the post_filter part of the search query. yii\elasticsearch\Query
query() Sets the query part of this search query. yii\elasticsearch\Query
scalar() Returns the query result as a scalar value. yii\elasticsearch\Query
search() Executes the query and returns the complete search result including e.g. hits, facets, totalCount. yii\elasticsearch\Query
source() Sets the source filtering, specifying how the _source field of the document should be returned. yii\elasticsearch\Query
stats() Adds a 'stats' part to the query. yii\elasticsearch\Query
timeout() Sets the search timeout. yii\elasticsearch\Query
trigger() Triggers an event. yii\base\Component
where() Sets the WHERE part of the query. yii\db\QueryTrait

Protected Methods

Hide inherited methods

MethodDescriptionDefined By
filterCondition() Removes empty operands from the given query condition. yii\db\QueryTrait
isEmpty() Returns a value indicating whether the give value is "empty". yii\db\QueryTrait
normalizeOrderBy() Normalizes format of ORDER BY data yii\db\QueryTrait

Property Details

$aggregations public property
public array $aggregations = []
$explain public property (available since version 2.0.5)

Enables explanation for each hit on how its score was computed.

See also https://www.elastic.co/guide/en/elasticsearch/reference/current/search-request-explain.html.

public boolean $explain null
$fields public property

The fields being retrieved from the documents. For example, ['id', 'name']. If not set, this option will not be applied to the query and no fields will be returned. In this case the _source field will be returned by default which can be configured using source(). Setting this to an empty array will result in no fields being retrieved, which means that only the primaryKey of a record will be available in the result.

For each field you may also add an array representing a script field. Example:

$query->fields = [
    'id',
    'name',
    'value_times_two' => [
        'script' => "doc['my_field_name'].value * 2",
    ],
    'value_times_factor' => [
        'script' => "doc['my_field_name'].value * factor",
        'params' => [
            'factor' => 2.0
        ],
    ],
]

Note: Field values are always returned as arrays even if they only have one value.

See also:

public array $fields null
$filter public property

The filter part of this search query. This is an array or json string that follows the format of the elasticsearch Query DSL.

public array|string $filter null
$highlight public property

The highlight part of this search query. This is an array that allows to highlight search results on one or more fields.

See also http://www.elastic.co/guide/en/elasticsearch/reference/1.x/search-request-highlighting.html.

public array $highlight null
$index public property

The index to retrieve data from. This can be a string representing a single index or a an array of multiple indexes. If this is not set, indexes are being queried.

See also from().

public string|array $index null
$minScore public property (available since version 2.0.4)

Exclude documents which have a _score less than the minimum specified in min_score

See also http://www.elastic.co/guide/en/elasticsearch/reference/current/search-request-min-score.html.

public float $minScore null
$options public property (available since version 2.0.4)

List of options that will passed to commands created by this query.

See also yii\elasticsearch\Command::$options.

public array $options = []
$postFilter public property (available since version 2.0.5)

The post_filter part of the search query for differentially filter search results and aggregations.

See also https://www.elastic.co/guide/en/elasticsearch/guide/current/_post_filter.html.

public string|array $postFilter null
$query public property

The query part of this search query. This is an array or json string that follows the format of the elasticsearch Query DSL.

public array|string $query null
$source public property

This option controls how the _source field is returned from the documents. For example, ['id', 'name'] means that only the id and name field should be returned from _source. If not set, it means retrieving the full _source field unless fields() are specified. Setting this option to false will disable return of the _source field, this means that only the primaryKey of a record will be available in the result.

See also:

public array $source null
$stats public property

The 'stats' part of the query. An array of groups to maintain a statistics aggregation for.

See also http://www.elastic.co/guide/en/elasticsearch/reference/current/search.html#stats-groups.

public array $stats = []
$suggest public property
public array $suggest = []
$timeout public property

A search timeout, bounding the search request to be executed within the specified time value and bail with the hits accumulated up to that point when expired. Defaults to no timeout.

See also:

public integer $timeout null
$type public property

The type to retrieve data from. This can be a string representing a single type or a an array of multiple types. If this is not set, all types are being queried.

See also from().

public string|array $type null

Method Details

addAgg() public method
Deprecated since 2.0.5 use addAggragate() instead Adds an aggregation to this query. This is an alias for addAggregation().
public $this addAgg ( $name, $type, $options )
$name string

The name of the aggregation

$type string

The aggregation type. e.g. terms, range, histogram...

$options string|array

The configuration options for this aggregation. Can be an array or a json string.

return $this

The query object itself

addAggregate() public method

Adds an aggregation to this query. Supports nested aggregations.

See also https://www.elastic.co/guide/en/elasticsearch/reference/2.3/search-aggregations.html.

public $this addAggregate ( $name, $options )
$name string

The name of the aggregation

$options string|array

The configuration options for this aggregation. Can be an array or a json string.

return $this

The query object itself

addAggregation() public method
Deprecated since 2.0.5 use addAggragate() instead Adds an aggregation to this query.
public $this addAggregation ( $name, $type, $options )
$name string

The name of the aggregation

$type string

The aggregation type. e.g. terms, range, histogram...

$options string|array

The configuration options for this aggregation. Can be an array or a json string.

return $this

The query object itself

addOptions() public method (available since version 2.0.4)

Adds more options, overwriting existing options.

See also options().

public $this addOptions ( $options )
$options array

The options to be added.

return $this

The query object itself

throws yii\base\InvalidParamException

if $options is not an array

addSuggester() public method
public $this addSuggester ( $name, $definition )
$name string

The name of the suggester

$definition string|array

The configuration options for this suggester. Can be an array or a json string.

return $this

The query object itself

all() public method

Executes the query and returns all results as an array.

public array all ( $db null )
$db yii\elasticsearch\Connection

The database connection used to execute the query. If this parameter is not given, the elasticsearch application component will be used.

return array

The query results. If the query results in nothing, an empty array will be returned.

batch() public method (available since version 2.0.4)

Starts a batch query.

A batch query supports fetching data in batches, which can keep the memory usage under a limit. This method will return a yii\elasticsearch\BatchQueryResult object which implements the Iterator interface and can be traversed to retrieve the data in batches.

For example,

$query = (new Query)->from('user');
foreach ($query->batch() as $rows) {
    // $rows is an array of 10 or fewer rows from user table
}

Batch size is determined by the limit setting (note that in scan mode batch limit is per shard).

public yii\elasticsearch\BatchQueryResult batch ( $scrollWindow '1m', $db null )
$scrollWindow string

How long Elasticsearch should keep the search context alive, in time units

$db yii\elasticsearch\Connection

The database connection. If not set, the elasticsearch application component will be used.

return yii\elasticsearch\BatchQueryResult

The batch query result. It implements the Iterator interface and can be traversed to retrieve the data in batches.

column() public method

Executes the query and returns the first column of the result.

public array column ( $field, $db null )
$field string

The field to query over

$db yii\elasticsearch\Connection

The database connection used to execute the query. If this parameter is not given, the elasticsearch application component will be used.

return array

The first column of the query result. An empty array is returned if the query results in nothing.

count() public method

Returns the number of records.

public integer count ( $q '*', $db null )
$q string

The COUNT expression. This parameter is ignored by this implementation.

$db yii\elasticsearch\Connection

The database connection used to execute the query. If this parameter is not given, the elasticsearch application component will be used.

return integer

Number of records

createCommand() public method

Creates a DB command that can be used to execute this query.

public yii\elasticsearch\Command createCommand ( $db null )
$db yii\elasticsearch\Connection

The database connection used to execute the query. If this parameter is not given, the elasticsearch application component will be used.

return yii\elasticsearch\Command

The created DB command instance.

delete() public method

Executes the query and deletes all matching documents.

Everything except query and filter will be ignored.

public array delete ( $db null, $options = [] )
$db yii\elasticsearch\Connection

The database connection used to execute the query. If this parameter is not given, the elasticsearch application component will be used.

$options array

The options given with this query.

return array

The query results.

each() public method (available since version 2.0.4)

Starts a batch query and retrieves data row by row.

This method is similar to batch() except that in each iteration of the result, only one row of data is returned. For example,

$query = (new Query)->from('user');
foreach ($query->each() as $row) {
}
public yii\elasticsearch\BatchQueryResult each ( $scrollWindow '1m', $db null )
$scrollWindow string

How long Elasticsearch should keep the search context alive, in time units

$db yii\elasticsearch\Connection

The database connection. If not set, the elasticsearch application component will be used.

return yii\elasticsearch\BatchQueryResult

The batch query result. It implements the Iterator interface and can be traversed to retrieve the data in batches.

exists() public method

Returns a value indicating whether the query result contains any row of data.

public boolean exists ( $db null )
$db yii\elasticsearch\Connection

The database connection used to execute the query. If this parameter is not given, the elasticsearch application component will be used.

return boolean

Whether the query result contains any row of data.

explain() public method (available since version 2.0.5)

Explain for how the score of each document was computer

See also $explain.

public $this explain ( $explain )
$explain
fields() public method

Sets the fields to retrieve from the documents.

See also http://www.elastic.co/guide/en/elasticsearch/reference/current/search-request-fields.html.

public $this fields ( $fields )
$fields array

The fields to be selected.

return $this

The query object itself

filter() public method

Sets the filter part of this search query.

public $this filter ( $filter )
$filter string
return $this

The query object itself

from() public method
public $this from ( $index, $type null )
$index string|array

The index to retrieve data from. This can be a string representing a single index or a an array of multiple indexes. If this is null it means that all indexes are being queried.

$type string|array

The type to retrieve data from. This can be a string representing a single type or a an array of multiple types. If this is null it means that all types are being queried.

return $this

The query object itself

highlight() public method

Sets a highlight parameters to retrieve from the documents.

See also http://www.elastic.co/guide/en/elasticsearch/reference/current/search-request-highlighting.html.

public $this highlight ( $highlight )
$highlight array

Array of parameters to highlight results.

return $this

The query object itself

init() public method

Initializes the object.

This method is invoked at the end of the constructor after the object is initialized with the given configuration.

public void init ( )
minScore() public method (available since version 2.0.4)
public static minScore ( $minScore )
$minScore float

Exclude documents which have a _score less than the minimum specified minScore

return static

The query object itself

one() public method

Executes the query and returns a single row of result.

public array|boolean one ( $db null )
$db yii\elasticsearch\Connection

The database connection used to execute the query. If this parameter is not given, the elasticsearch application component will be used.

return array|boolean

The first row (in terms of an array) of the query result. False is returned if the query results in nothing.

options() public method (available since version 2.0.4)

Sets the options to be passed to the command created by this query.

See also yii\elasticsearch\Command::$options.

public $this options ( $options )
$options array

The options to be set.

return $this

The query object itself

throws yii\base\InvalidParamException

if $options is not an array

populate() public method (available since version 2.0.4)

Converts the raw query results into the format as specified by this query.

This method is internally used to convert the data fetched from database into the format as required by this query.

public array populate ( $rows )
$rows array

The raw query result from database

return array

The converted query result

postFilter() public method (available since version 2.0.5)

Set the post_filter part of the search query.

See also $postFilter.

public $this postFilter ( $filter )
$filter string|array
return $this

The query object itself

query() public method

Sets the query part of this search query.

public $this query ( $query )
$query string|array
return $this

The query object itself

scalar() public method

Returns the query result as a scalar value.

The value returned will be the specified field in the first document of the query results.

public string scalar ( $field, $db null )
$field string

Name of the attribute to select

$db yii\elasticsearch\Connection

The database connection used to execute the query. If this parameter is not given, the elasticsearch application component will be used.

return string

The value of the specified attribute in the first record of the query result. Null is returned if the query result is empty or the field does not exist.

search() public method

Executes the query and returns the complete search result including e.g. hits, facets, totalCount.

public array search ( $db null, $options = [] )
$db yii\elasticsearch\Connection

The database connection used to execute the query. If this parameter is not given, the elasticsearch application component will be used.

$options array

The options given with this query. Possible options are:

return array

The query results.

source() public method

Sets the source filtering, specifying how the _source field of the document should be returned.

See also http://www.elastic.co/guide/en/elasticsearch/reference/current/search-request-source-filtering.html.

public $this source ( $source )
$source array

The source patterns to be selected.

return $this

The query object itself

stats() public method
public $this stats ( $groups )
$groups array

An array of groups to maintain a statistics aggregation for.

return $this

The query object itself

timeout() public method
public $this timeout ( $timeout )
$timeout integer

A search timeout, bounding the search request to be executed within the specified time value and bail with the hits accumulated up to that point when expired. Defaults to no timeout.

return $this

The query object itself