ExistsCondition

API reference › yii › db › conditions › ExistsCondition

class	`yii\db\conditions\ExistsCondition`
Implements	`ConditionInterface`
Since	2.0.14
Source	`framework/db/conditions/ExistsCondition.php`

Condition that represents EXISTS operator.

Methods

Method	Description	Defined by
`__construct()`	ExistsCondition constructor.	`ExistsCondition`
`fromArrayDefinition()` static	Creates object by array-definition as described in Query Builder – Operator format guide article.	`ExistsCondition`
`getOperator()`		`ExistsCondition`
`getQuery()`		`ExistsCondition`

public function __construct(string $operator, yii\db\Query $query)

ExistsCondition constructor.

Parameters

Parameter	Type	Description
`$operator`	`string`	The operator to use (e.g. `EXISTS` or `NOT EXISTS`)
`$query`	`yii\db\Query`	The `Query` object representing the sub-query.

public static function fromArrayDefinition(mixed $operator, mixed $operands): static

Creates object by array-definition as described in Query Builder – Operator format guide article.

Parameters

Parameter	Type	Description
`$operator`	`mixed`	Operator in uppercase.
`$operands`	`mixed`	Array of corresponding operands

Returns

static

Throws

InvalidArgumentException: if input parameters are not suitable for this condition

public function getOperator(): string

Returns

string

public function getQuery(): yii\db\Query

Returns

yii\db\Query