71 lines
2.4 KiB
PHP
71 lines
2.4 KiB
PHP
<?php
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/**
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* Check if a field is empty but only when specific fields have specific values.
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*
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* WARNING: you need to include this file directly when using it, it clashes with the
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* way zf1 Zend_Loader_PluginLoader expects it to be found. Another way around this
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* might be to rename the class and have the new name get loaded proper.
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*
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* Since this is only getting used in a few places I am re-adding the
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* require_once there to get this fixed for now.
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*/
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class ConditionalNotEmpty extends Zend_Validate_Abstract
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{
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public const KEY_IS_EMPTY = 'keyIsEmpty';
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protected $_messageTemplates;
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protected $_fieldValues;
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/**
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* Constructs a new ConditionalNotEmpty validator.
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*
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* @param array $fieldValues - the names and expected values of the fields we're depending on;
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* E.g., if we have a field that should only be validated when two other
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* fields PARENT_1 and PARENT_2 have values of '1' and '0' respectively, then
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* $fieldValues should contain ('PARENT_1'=>'1', 'PARENT_2'=>'0')
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*/
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public function __construct($fieldValues)
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{
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$this->_fieldValues = $fieldValues;
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$this->_messageTemplates = [
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self::KEY_IS_EMPTY => _("Value is required and can't be empty"),
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];
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}
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/**
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* Implements Zend_Validate_Abstract.
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* Given names and expected values of the fields we're depending on ($_fieldValues),
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* this function returns true if the expected values doesn't match the actual user input,
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* or if $value is not empty. Returns false otherwise.
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*
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* @param string $value - this field's value
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* @param array $context - names and values of the rest of the fields in this form
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*
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* @return bool - true if valid; false otherwise
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*/
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public function isValid($value, $context = null)
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{
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if ($value != '') {
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return true;
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}
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if (is_array($context)) {
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foreach ($this->_fieldValues as $fieldName => $fieldValue) {
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if (!isset($context[$fieldName]) || $context[$fieldName] != $fieldValue) {
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return true;
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}
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}
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} elseif (is_string($context)) {
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if (!isset($context) || $context != $fieldValue) {
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return true;
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}
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}
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$this->_error(self::KEY_IS_EMPTY);
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return false;
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}
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}
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