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HTML_QuickForm::addGroupRule()

HTML_QuickForm::addGroupRule() -- Adds a validation rule for the given group

Synopsis

require_once 'HTML/QuickForm.php';

void HTML_QuickForm::addGroupRule (string $group, mixed $arg1 [, string $type = '' [, string $format = '' [, int $howmany = 0 [, string $validation = 'server' [, bool $reset = FALSE]]]]])

Description

Adds a validation rule for the given group of elements

Only groups with a name can be assigned a validation rule. Use addGroupRule() when you need to validate elements inside the group. Also use addRule() if you need to validate the group as a whole.

Parameter

string $group

Form group name

mixed $arg1

Array for multiple elements or error message string for one element. If this is the array, its structure is the following: 
array (
    'element name or index' => array(
        array(rule data),
        ...
        array(rule data)
    ),
    ...
    'element name or index' => array(
        array(rule data),
        ...
        array(rule data)
    )
)
rule data here matches the parameters' order and meaning for addRule() method.

string $type

(optional) Rule type. Use getRegisteredRules() to get types. You can also pass a classname for a descendant of HTML_QuickForm_Rule or an instance of such class.

string $format

(optional) Required for extra rule data

integer $howmany

(optional) How many valid elements should be in the group

string $validation

(optional)Where to perform validation: "server", "client"

boolean $reset

Client-side: whether to reset the element's value to its original state if validation failed.

Throws

Table 31-1. Possible PEAR_Error values

Error codeError messageReasonSolution
QUICKFORM_NONEXIST_ELEMENTGroup '$group' does not exist in HTML_QuickForm::addGroupRule()Tried to add a rule for a non-existant groupCheck the group name spelling
QUICKFORM_NONEXIST_ELEMENTElement '$elementIndex' not found in group '$group' in HTML_QuickForm::addGroupRule()$arg1 is an array and contains an index for an element not present in a groupCheck the element index spelling
QUICKFORM_INVALID_RULERule '$type' is not registered in HTML_QuickForm::addGroupRule()Rule is not known to QuickFormCheck rule type spelling or use HTML_QuickForm::registerRule().

Note

since 2.5

This function can not be called statically.

Example

Example 31-1. Using addGroupRule()

<?php
// a group of 4 checkboxes
$checkbox[] = &HTML_QuickForm::createElement('checkbox', 'A', null, 'A');
$checkbox[] = &HTML_QuickForm::createElement('checkbox', 'B', null, 'B');
$checkbox[] = &HTML_QuickForm::createElement('checkbox', 'C', null, 'C');
$checkbox[] = &HTML_QuickForm::createElement('checkbox', 'D', null, 'D');
$form->addGroup($checkbox, 'ichkABCD', 'ABCD:', array('&nbsp;', '<br />'));
// Simple rule: at least 2 checkboxes should be checked
$form->addGroupRule('ichkABCD', 'Please check at least one box', 'required', null, 2);

$idGrp[] = &HTML_QuickForm::createElement('text', 'lastname', 'Name', array('size' => 30));
$idGrp[] = &HTML_QuickForm::createElement('text', 'code', 'Code', array('size' => 5, 'maxlength' => 4));
$form->addGroup($idGrp, 'id', 'ID:', ',&nbsp');
// Complex rule for group's elements
$form->addGroupRule('id', array(
    'lastname' => array(
        array('Name is letters only', 'lettersonly'),
        array('Name is required', 'required')
    ),
    'code' => array(
        array('Code must be numeric', 'numeric')
    )
));
?>
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