Evaluate the data comparison.

Parameters

mixed $data: Supplied data to test.

string $operation: Data comparison operation. Typically one of:

• "=="
• "<"
• ">"
• "contains" (for strings or arrays)
• "IN" (for arrays or lists).

mixed $value: The value to be compared against $data.

Return value

bool The evaluation of the condition.

File

src/Plugin/Condition/DataComparison.php, line 58

Class

DataComparison

Provides a 'Data comparison' condition.

Namespace

Drupal\rules\Plugin\Condition

Code

protected function doEvaluate($data, $operation, $value) {
    $operation = $operation ? strtolower($operation) : '==';
    switch ($operation) {
        case '<':
            return $data < $value;
        case '>':
            return $data > $value;
        case 'contains':
            return is_string($data) && strpos($data, $value) !== FALSE || is_array($data) && in_array($value, $data);
        case 'in':
            return is_array($value) && in_array($data, $value);
        case '==':
        default:
            // In case both values evaluate to FALSE, further differentiate between
            // NULL values and values evaluating to FALSE.
            if (!$data && !$value) {
                return isset($data) && isset($value) || !isset($data) && !isset($value);
            }
            return $data == $value;
    }
}