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Class yii\db\conditions\ExistsCondition

Inheritance	yii\db\conditions\ExistsCondition
Implements	yii\db\conditions\ConditionInterface
Available since version	2.0.14
Source Code	https://github.com/yiisoft/yii2/blob/master/framework/db/conditions/ExistsCondition.php

Condition that represents EXISTS operator.

Public Methods

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

Method Details

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__construct() public method

ExistsCondition constructor.

public mixed __construct ( string $operator, yii\db\Query $query )
$operator	string	The operator to use (e.g. `EXISTS` or `NOT EXISTS`)
$query	yii\db\Query	The yii\db\Query object representing the sub-query.

Source code

 public function __construct($operator, $query) { $this->operator = $operator; $this->query = $query; }

fromArrayDefinition() public static method

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

public static static fromArrayDefinition ( mixed $operator, mixed $operands )
$operator	mixed	Operator in uppercase.
$operands	mixed	Array of corresponding operands
throws	yii\base\InvalidParamException	if input parameters are not suitable for this condition

Source code

 public static function fromArrayDefinition($operator, $operands) { if (!isset($operands[0]) || !$operands[0] instanceof Query) { throw new InvalidArgumentException('Subquery for EXISTS operator must be a Query object.'); } return new static($operator, $operands[0]); }

getOperator() public method

public string getOperator ( )

Source code

 public function getOperator() { return $this->operator; }

getQuery() public method

public yii\db\Query getQuery ( )

Source code

 public function getQuery() { return $this->query; }