148 lines
4 KiB
PHP
148 lines
4 KiB
PHP
<?php
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/*
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*
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* @(#) $Id: form_custom_validation.php,v 1.4 2008/06/04 20:55:06 mlemos Exp $
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*
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*/
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if(!defined("PHP_LIBRARY_CUSTOM_VALIDATION_FORMS"))
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{
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define("PHP_LIBRARY_CUSTOM_VALIDATION_FORMS",1);
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class form_custom_validation_class extends form_custom_class
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{
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/*
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* Tell the forms class that this custom input will perform both server
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* side and client side validation.
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*/
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var $client_validate=1;
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var $server_validate=1;
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var $first='';
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var $second='';
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var $first_validation_error_message='The first input value is contained in the second.';
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var $second_validation_error_message='The second input value is contained in the first.';
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Function AddInput(&$form, $arguments)
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{
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/*
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* Get the identifiers of the inputs to validate
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*/
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if(!IsSet($arguments['FirstInput'])
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|| strlen($this->first=$arguments['FirstInput'])==0)
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return('It was not specified a valid first input identifier');
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if(!IsSet($arguments['SecondInput'])
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|| strlen($this->second=$arguments['SecondInput'])==0)
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return('It was not specified a valid second input identifier');
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/*
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* Get the error messages to assign when the inputs are invalid.
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*/
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if(IsSet($arguments['FirstValidationErrorMessage']))
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{
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if(strlen($arguments['FirstValidationErrorMessage'])==0)
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return('It was not specified a valid first validation error message');
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$this->first_validation_error_message=$arguments['FirstValidationErrorMessage'];
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}
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if(IsSet($arguments['SecondValidationErrorMessage']))
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{
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if(strlen($arguments['SecondValidationErrorMessage'])==0)
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return('It was not specified a valid second validation error message');
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$this->second_validation_error_message=$arguments['SecondValidationErrorMessage'];
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}
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return('');
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}
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Function ValidateInput(&$form)
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{
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/*
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* Perform server side validation by checking whether one of the
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* input values contains the other.
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*
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* This function is called after all validations were performed on
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* all basic inputs.
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*/
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$first=$form->GetInputValue($this->first);
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$second=$form->GetInputValue($this->second);
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if(strlen($first)
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&& strstr($second, $first))
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{
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$form->FlagInvalidInput($this->first, $this->first_validation_error_message);
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return('');
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}
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if(strlen($second)
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&& strstr($first, $second))
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{
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$form->FlagInvalidInput($this->second, $this->second_validation_error_message);
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return('');
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}
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return('');
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}
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Function GetJavascriptValidations(&$form, $form_object, &$validations)
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{
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/*
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* Generate all the necessary Javascript to perform client side
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* validation.
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*/
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if(strlen($first=$form->GetJavascriptInputValue($form_object,$this->first))==0)
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return('it was not possible to retrieve the first input Javascript value');
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if(strlen($second=$form->GetJavascriptInputValue($form_object,$this->second))==0)
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return('it was not possible to retrieve the second input Javascript value');
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/*
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* Return an array with a list of all validation checks to be
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* performed.
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*/
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$validations=array();
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$validations[]=array(
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/*
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* Each.validation check may be preceed by a list of Javascript
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* commands that are executed before each validation is performed.
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*/
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'Commands'=>array(
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'first='.$first,
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'second='.$second,
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),
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/*
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* The condition is a boolean Javascript expression that is true
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* when the input is invalid.
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*/
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'Condition'=>'second.indexOf(first) != -1',
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/*
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* Error message associated to the invalid input
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*/
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'ErrorMessage'=>$this->first_validation_error_message,
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/*
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* Input that gets the user input focus so the user fixes its value
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* to make the input valid
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*/
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'Focus'=>$this->first
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);
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$validations[]=array(
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'Commands'=>array(),
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'Condition'=>'first.indexOf(second) != -1',
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'ErrorMessage'=>$this->second_validation_error_message,
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'Focus'=>$this->second
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);
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return('');
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}
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Function AddInputPart(&$form)
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{
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/*
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* Inputs that do not appear in the form must implement an empty
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* AddInputPart function.
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*/
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return('');
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}
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};
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}
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?>
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