form_question_rule_type_comparison.inc

<?php
require_once dirname(__FILE__).'/../../form_question_rule/form_question_rule.inc';

class Form_Question_Rule_Type_Comparison extends Form_Question_Rule
{


    function __construct($assetid=0)
    {
        parent::__construct($assetid);

    }//end constructor


    public static function getOperators()
    {
        $operators = Array(
                        '=='    => translate('core_form_rule_comparison_=='),
                        '!='    => translate('core_form_rule_comparison_!='),
                        '>'     => translate('core_form_rule_comparison_>'),
                        '<'     => translate('core_form_rule_comparison_<'),
                        '>='    => translate('core_form_rule_comparison_>='),
                        '<='    => translate('core_form_rule_comparison_<='),
                     );

        return $operators;

    }//end getOperators()


    function generateJSCode(&$q_asset, $rule_data)
    {
        $operator = array_get_index($rule_data, 'operator', 1);
        $cq_id = array_get_index($rule_data, 'comparison_question_id', 0);
        $value = array_get_index($rule_data, 'value', '');

        ob_start();         // buffer this please

            if ($cq_id != 0) {
                $comparison = 'form.elements["q'.$cq_id.'"].value';
            } else {
                $comparison = '"'.addslashes($value).'"';
            }

            // if it's a numeric field, make sure that JavaScript
            // interprets it as a number
            if ($q_asset instanceof Form_Question_Type_Numeric) {
                ?>if (!(parseFloat(form.elements["q<?php echo $q_asset->id; ?>"].value) <?php echo $operator ?> parseFloat(<?php echo $comparison ?>))) {<?php
            } else {
                ?>if (!(form.elements["q<?php echo $q_asset->id; ?>"].value <?php echo $operator ?> <?php echo $comparison ?>)) {<?php
            }
            ?>submission_errors[submission_errors.length] = "<?php
                        if (empty($rule_data['custom_text'])) {
                            echo addslashes($this->defaultError($q_asset, $rule_data));
                        } else {
                            echo addslashes($rule_data['custom_text']);
                        }
                    ?>";
                }
            <?php

        $contents = ob_get_contents();
        ob_end_clean();

        return $contents;

    }//end generateJSCode()


    function evaluate($answer, $rule_data)
    {
        $operator = array_get_index($rule_data, 'operator', '==');
        $cq_id = array_get_index($rule_data, 'comparison_question_id', 0);
        $value = array_get_index($rule_data, 'value', '');

        if ($cq_id != 0) {
            $comparison_asset = $GLOBALS['SQ_SYSTEM']->am->getAsset($cq_id);
            $value = $comparison_asset->getValue();
        }

        switch ($operator) {
            case '==':
                $valid = ($answer == $value);
            break;

            case '!=':
                $valid = ($answer != $value);
            break;

            case '>':
                $valid = ($answer > $value);
            break;

            case '>=':
                $valid = ($answer >= $value);
            break;

            case '<':
                $valid = ($answer < $value);
            break;

            case '<=':
                $valid = ($answer <= $value);
            break;
        }

        return $valid;

    }//end evaluate()


    function ruleDescription(&$q_asset, $rule_data)
    {
        $operator = array_get_index($rule_data, 'operator', '==');
        $cq_id = array_get_index($rule_data, 'comparison_question_id', 0);
        $value = array_get_index($rule_data, 'value', '');

        if (($value == '') && ($operator == '!=')) {
            if (strlen($q_asset->attr('cust_required_error'))) {
                $error_str = $q_asset->attr('cust_required_error');
            } else {
                $error_str = translate('core_form_rule_comparison_required', $q_asset->attr('name'));
            }
        } else {
            $operator_list = $this->getOperators();
            $string_code = 'core_form_rule_comparison_desc_'.$operator;

            if ($cq_id != 0) {
                $string_code .= '_q';
                $comparison = $GLOBALS['SQ_SYSTEM']->am->getAsset($cq_id);
                $value = $comparison->name;
            } else {    // sent just a value
                $value = array_get_index($rule_data, 'value', '');
            }

            $error_str = translate($string_code, $q_asset->name, $value);
        }

        return $error_str;

    }//end ruleDescription()


}//end class
?>