class.ilOperatorsExpressionMapping.php

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<?php

abstract class ilOperatorsExpressionMapping
{
    private static $mappings = array(
        iQuestionCondition::PercentageResultExpression => array("<", "<=", "=", ">=", ">", "<>"),
        iQuestionCondition::NumericResultExpression => array("<", "<=", "=", ">=", ">", "<>"),
        iQuestionCondition::StringResultExpression => array("=", "<>"),
        iQuestionCondition::MatchingResultExpression => array("=", "<>"),
        iQuestionCondition::OrderingResultExpression => array("=", "<>"),
        iQuestionCondition::NumberOfResultExpression => array("=", "<>"),
        iQuestionCondition::ExclusiveResultExpression => array("=", "<>"),
        iQuestionCondition::EmptyAnswerExpression => array("=", "<>")
    );

    public static function getOperatorsByExpression($expression): array
    {
        return self::$mappings[$expression];
    }

    public static function getAll(): array
    {
        return self::$mappings;
    }
}