Support » Plugin: Contact Form DB » Check for Duplicate Submissions

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  • I have the same problem.

    function is_already_submitted($formName, $fieldName, $fieldValue) {
        require_once(ABSPATH . 'wp-content/plugins/contact-form-7-to-database-extension/CFDBFormIterator.php');
        $exp = new CFDBFormIterator();
        $atts = array();
        $atts['show'] = $fieldName;
        $atts['filter'] = "$fieldName=$fieldValue";
        $atts['unbuffered'] = 'true';
        $exp->export($formName, $atts);
        $found = false;
        while ($row = $exp->nextRow()) {
            $found = true;
        }
        return $found;
    }
     
    /**
     * @param $result WPCF7_Validation
     * @param $tag array
     * @return WPCF7_Validation
     */
    function my_validate_email($result, $tag) {
    
        $formName = 'Prize Draw'; // Change to name of the form containing this field
        $fieldName = 'your-email'; // Change to your form's unique field name
        $errorMessage = 'Email has already been submitted'; // Change to your error message
        $name = $tag['name'];
        if ($name == $fieldName) {
            if (is_already_submitted($formName, $fieldName, $_POST[$name])) {
                $result->invalidate($tag, $errorMessage);
            }
        }
        return $result;
    }
     
    // use the next line if your field is a **required email** field on your form
    add_filter('wpcf7_validate_email*', 'my_validate_email', 10, 2);

    Submissions with the same email address as before continue to go through.

    Anybody can help? I have the same problem

Viewing 2 replies - 1 through 2 (of 2 total)
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