Class yii\elasticsearch\Query

All Classes | Properties | Methods

Inheritance	yii\elasticsearch\Query » yii\base\Component » yii\base\Object
Implements	yii\base\Configurable, yii\db\QueryInterface
Uses Traits	yii\db\QueryTrait
Subclasses	yii\elasticsearch\ActiveQuery
Available since version	2.0
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

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Property	Type	Description	Defined 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
$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	Maximum number of records to be returned.	yii\db\QueryTrait
$offset	integer	Zero-based offset from where the records are to be returned.	yii\db\QueryTrait
$orderBy	array	How to sort the query results.	yii\db\QueryTrait
$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

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Method	Description	Defined 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()	Adds an aggregation to this query.	yii\elasticsearch\Query
addAggregation()	Adds an aggregation to this query.	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
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
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
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
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
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
query()	Sets the querypart 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

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Method	Description	Defined 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

array $aggregations = []

List of aggregations to add to this query.

$fields public property

array $fields = null

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.

Method Details

addAgg() public method

Adds an aggregation to this query.

This is an alias for addAggregation().

static 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	static	The query object itself

addAggregation() public method

Adds an aggregation to this query.

static 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	static	The query object itself

addSuggester() public method

Adds a suggester to this query.

static 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	static	The query object itself

all() public method

Executes the query and returns all results as an array.

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.

column() public method

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

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.

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.

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.

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.

exists() public method

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

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.

fields() public method

Sets the fields to retrieve from the documents.

static fields( $fields )
$fields	array	The fields to be selected.
return	static	The query object itself

filter() public method

Sets the filter part of this search query.

static filter( $filter )
$filter	string
return	static	The query object itself

from() public method

Sets the index and type to retrieve documents from.

static 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	static	The query object itself

highlight() public method

Sets a highlight parameters to retrieve from the documents.

static highlight( $highlight )
$highlight	array	Array of parameters to highlight results.
return	static	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.

void init( )

one() public method

Executes the query and returns a single row of result.

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.

query() public method

Sets the querypart of this search query.

static query( $query )
$query	string
return	static	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.

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.

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: routing search_type
return	array	The query results.

source() public method

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

static source( $source )
$source	array	The source patterns to be selected.
return	static	The query object itself

stats() public method

Adds a 'stats' part to the query.

static stats( $groups )
$groups	array	An array of groups to maintain a statistics aggregation for.
return	static	The query object itself

timeout() public method

Sets the search timeout.

static 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	static	The query object itself