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<?php
/**
* FusionForge field validator
*
* Copyright 2002, GForge, LLC
*
* This file is part of FusionForge. FusionForge is free software;
* you can redistribute it and/or modify it under the terms of the
* GNU General Public License as published by the Free Software
* Foundation; either version 2 of the Licence, or (at your option)
* any later version.
*
* FusionForge is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with FusionForge; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/**
* This class is a simple utility to validate fields
*
* Sample usage:
*
* $v = new Validator();
* $v->check($summary, "summary");
* $v->check($detail, "detail");
* if (!$v->isClean()) {
* print $v->formErrorMsg("The following fields were null:");
* }
*
*/
class Validator {
var $badfields;
/**
* Checks to see if a field is null; if so, the field name is added to an internal array
*
* @param field - a variable to check for null
* @param name - the variable name
*/
function check($field, $name) {
if (!$field) {
$this->badfields[] = $name;
}
}
/**
* Returns true if no null fields have been checked so far
*
* @return boolean - True if there are no null fields so far
*/
function isClean() {
return count($this->badfields) == 0;
}
/**
* Returns an error message which contains the null field names which have been checked
*
* @param string $preamble - A string with which to start the error message
* @return string - A complete error message
*/
function formErrorMsg($preamble) {
foreach ($this->badfields as $field) {
$preamble = $preamble.$field.",";
}
return substr($preamble, 0, strlen($preamble)-1);
}
}
// Local Variables:
// mode: php
// c-file-style: "bsd"
// End:
|
