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MDL-9506 Forgot to add the grade_scale.php file.

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nicolasconnault 2007-05-01 05:47:10 +00:00
parent d5bdb228a5
commit 97b868a31c
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<?php // $Id$
///////////////////////////////////////////////////////////////////////////
// //
// NOTICE OF COPYRIGHT //
// //
// Moodle - Modular Object-Oriented Dynamic Learning Environment //
// http://moodle.com //
// //
// Copyright (C) 2001-2003 Martin Dougiamas http://dougiamas.com //
// //
// This program 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 License, or //
// (at your option) any later version. //
// //
// This program 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: //
// //
// http://www.gnu.org/copyleft/gpl.html //
// //
///////////////////////////////////////////////////////////////////////////
require_once('grade_object.php');
/**
* Class representing a grade item. It is responsible for handling its DB representation,
* modifying and returning its metadata.
*/
class grade_scale extends grade_object {
/**
* DB Table (used by grade_object).
* @var string $table
*/
var $table = 'scale';
/**
* Array of class variables that are not part of the DB table fields
* @var array $nonfields
*/
var $nonfields = array('table', 'nonfields', 'scale_items');
/**
* The course this scale belongs to.
* @var int $courseid
*/
var $courseid;
/**
* The name of the scale.
* @var string $name
*/
var $name;
/**
* The items in this scale.
* @var array $scale_items
*/
var $scale_items = array();
/**
* A string representatin of the scale items (a comma-separated list).
* @var string $scale
*/
var $scale;
/**
* A description for this scale.
* @var string $description
*/
var $description;
/**
* Loads the scale's items into the $scale_items array.
* There are three ways to achieve this:
* 1. No argument given: The $scale string is already loaded and exploded to an array of items.
* 2. A string is given: A comma-separated list of items is exploded into an array of items.
* 3. An array of items is given and saved directly as the array of items for this scale.
*
* @param mixed $items Could be null, a string or an array. The method behaves differently for each case.
* @return array The resulting array of scale items or null if the method failed to produce one.
*/
function load_items($items=NULL) {
if (empty($items)) {
$this->scale_items = explode(',', $this->scale);
} elseif (is_array($items)) {
$this->scale_items = $items;
} else {
$this->scale_items = explode(',', $items);
}
// Trim whitespace around each value
foreach ($this->scale_items as $key => $val) {
$this->scale_items[$key] = trim($val);
}
return $this->scale_items;
}
/**
* Compacts (implodes) the array of items in $scale_items into a comma-separated string, $scale.
* There are three ways to achieve this:
* 1. No argument given: The $scale_items array is already loaded and imploded to a string of items.
* 2. An array is given and is imploded into a string of items.
* 3. A string of items is given and saved directly as the $scale variable.
* NOTE: This method is the exact reverse of load_items, and their input/output should be interchangeable. However,
* because load_items() trims the whitespace around the items, when the string is reconstructed these whitespaces will
* be missing. This is not an issue, but should be kept in mind when comparing the two strings.
*
* @param mixed $items Could be null, a string or an array. The method behaves differently for each case.
* @return array The resulting string of scale items or null if the method failed to produce one.
*/
function compact_items($items=NULL) {
if (empty($items)) {
$this->scale = implode(',', $this->scale_items);
} elseif (is_array($items)) {
$this->scale = implode(',', $items);
} else {
$this->scale = $items;
}
return $this->scale;
}
}
?>