public function PathInvalidation::validateExpression in Purge 8.3

Validate the expression given to the invalidation during instantiation.

Throws

\Drupal\purge\Plugin\Purge\Invalidation\Exception\MissingExpressionException Thrown when plugin defined expression_required = TRUE and when it is instantiated without expression (NULL).

\Drupal\purge\Plugin\Purge\Invalidation\Exception\InvalidExpressionException Exception thrown when plugin got instantiated with an expression that is not deemed valid for the type of invalidation.

Overrides InvalidationBase::validateExpression

See also

\Drupal\purge\Annotation\PurgeInvalidation::$expression_required

\Drupal\purge\Annotation\PurgeInvalidation::$expression_can_be_empty

1 call to PathInvalidation::validateExpression()

WildcardPathInvalidation::validateExpression in src/Plugin/Purge/Invalidation/WildcardPathInvalidation.php

Validate the expression given to the invalidation during instantiation.

1 method overrides PathInvalidation::validateExpression()

WildcardPathInvalidation::validateExpression in src/Plugin/Purge/Invalidation/WildcardPathInvalidation.php

Validate the expression given to the invalidation during instantiation.

File

src/Plugin/Purge/Invalidation/PathInvalidation.php, line 25

Class

PathInvalidation

Describes path based invalidation, e.g. "news/article-1".

Namespace

Drupal\purge\Plugin\Purge\Invalidation

Code

public function validateExpression($wildcard_check = TRUE) {
  parent::validateExpression();
  if ($wildcard_check && strpos($this->expression, '*') !== FALSE) {
    throw new InvalidExpressionException('Path invalidations should not contain asterisks.');
  }
  if ($wildcard_check && $this->expression === '*') {
    throw new InvalidExpressionException('Path invalidations cannot be "*".');
  }
  if (strpos($this->expression, ' ') !== FALSE) {
    throw new InvalidExpressionException('Path invalidations cannot contain spaces, use %20 instead.');
  }
  if (strpos($this->expression, '/') === 0) {
    throw new InvalidExpressionException('Path invalidations cannot start with slashes.');
  }
}