Creates and adds an expression.

Parameters

string $plugin_id: The id of the expression plugin to add.

\Drupal\rules\Context\ContextConfig $config: (optional) The configuration for the specified plugin.

Return value

$this

Throws

\Drupal\rules\Exception\InvalidExpressionException Thrown if the wrong expression is passed; e.g. if a condition expression is added to an action expression container.

2 methods override ExpressionContainerInterface::addExpression()

ExpressionContainerBase::addExpression in src/Engine/ExpressionContainerBase.php

Creates and adds an expression.

RuleExpression::addExpression in src/Plugin/RulesExpression/RuleExpression.php

Creates and adds an expression.

File

src/Engine/ExpressionContainerInterface.php, line 30

Class

ExpressionContainerInterface

Defines a common interface for expressions containing other expressions.

Namespace

Drupal\rules\Engine

Code

public function addExpression($plugin_id, ContextConfig $config = NULL);