resource.class.php

很棒的在线教学系统

<?php // $Id: resource.class.php,v 1.21.2.4 2009/03/23 09:47:13 mudrd8mz Exp $

/**
* Extend the base resource class for repository resources
*
* Extend the base resource class for respoitory resources
*
*/
class resource_repository extends resource_base {

function resource_repository($cmid=0) {
    parent::resource_base($cmid);
}

var $parameters;
var $maxparameters = 5;


/**
* Sets the parameters property of the extended class
*
* Sets the parameters property of the extended repository resource class
*
* @param    USER  global object
* @param    CFG   global object
*/
function set_parameters() {
    global $USER, $CFG;

    if (empty($USER->id)) {   // No need to set up parameters
        $this->parameters = array();
        return;
    }

    $site = get_site();

    $this->parameters = array(
            'label2'          => array('langstr' => "",
                                       'value'   =>'/optgroup'),
            'label3'          => array('langstr' => get_string('course'),
                                       'value'   => 'optgroup'),

            'courseid'        => array('langstr' => 'id',
                                       'value'   => $this->course->id),
            'coursefullname'  => array('langstr' => get_string('fullname'),
                                       'value'   => $this->course->fullname),
            'courseshortname' => array('langstr' => get_string('shortname'),
                                       'value'   => $this->course->shortname),
            'courseidnumber'  => array('langstr' => get_string('idnumbercourse'),
                                       'value'   => $this->course->idnumber),
            'coursesummary'   => array('langstr' => get_string('summary'),
                                       'value'   => $this->course->summary),
            'courseformat'    => array('langstr' => get_string('format'),
                                       'value'   => $this->course->format),
            'courseteacher'   => array('langstr' => get_string('wordforteacher'),
                                       'value'   => $this->course->teacher),
            'courseteachers'  => array('langstr' => get_string('wordforteachers'),
                                       'value'   => $this->course->teachers),
            'coursestudent'   => array('langstr' => get_string('wordforstudent'),
                                       'value'   => $this->course->student),
            'coursestudents'  => array('langstr' => get_string('wordforstudents'),
                                       'value'   => $this->course->students),

            'label4'          => array('langstr' => "",
                                       'value'   =>'/optgroup'),
            'label5'          => array('langstr' => get_string('miscellaneous'),
                                       'value'   => 'optgroup'),

            'lang'            => array('langstr' => get_string('preferredlanguage'),
                                       'value'   => current_language()),
            'sitename'        => array('langstr' => get_string('fullsitename'),
                                       'value'   => format_string($site->fullname)),
            'serverurl'       => array('langstr' => get_string('serverurl', 'resource', $CFG),
                                       'value'   => $CFG->wwwroot),
            'currenttime'     => array('langstr' => get_string('time'),
                                       'value'   => time()),
            'encryptedcode'   => array('langstr' => get_string('encryptedcode'),
                                       'value'   => $this->set_encrypted_parameter()),

            'label6'          => array('langstr' => "",
                                       'value'   =>'/optgroup')
    );

    if (!empty($USER->id)) {

        $userparameters = array(

            'label1'          => array('langstr' => get_string('user'),
                                       'value'   => 'optgroup'),

            'userid'          => array('langstr' => 'id',
                                       'value'   => $USER->id),
            'userusername'    => array('langstr' => get_string('username'),
                                       'value'   => $USER->username),
            'useridnumber'    => array('langstr' => get_string('idnumber'),
                                       'value'   => $USER->idnumber),
            'userfirstname'   => array('langstr' => get_string('firstname'),
                                       'value'   => $USER->firstname),
            'userlastname'    => array('langstr' => get_string('lastname'),
                                       'value'   => $USER->lastname),
            'userfullname'    => array('langstr' => get_string('fullname'),
                                       'value'   => fullname($USER)),
            'useremail'       => array('langstr' => get_string('email'),
                                       'value'   => $USER->email),
            'usericq'         => array('langstr' => get_string('icqnumber'),
                                       'value'   => $USER->icq),
            'userphone1'      => array('langstr' => get_string('phone').' 1',
                                       'value'   => $USER->phone1),
            'userphone2'      => array('langstr' => get_string('phone2').' 2',
                                       'value'   => $USER->phone2),
            'userinstitution' => array('langstr' => get_string('institution'),
                                       'value'   => $USER->institution),
            'userdepartment'  => array('langstr' => get_string('department'),
                                       'value'   => $USER->department),
            'useraddress'     => array('langstr' => get_string('address'),
                                       'value'   => $USER->address),
            'usercity'        => array('langstr' => get_string('city'),
                                       'value'   => $USER->city),
            'usertimezone'    => array('langstr' => get_string('timezone'),
                                       'value'   => get_user_timezone_offset()),
            'userurl'         => array('langstr' => get_string('webpage'),
                                       'value'   => $USER->url)
         );

         $this->parameters = $userparameters + $this->parameters;
    }
}


function add_instance($resource) {
    $this->_postprocess($resource);
    return parent::add_instance($resource);
}


function update_instance($resource) {
    $this->_postprocess($resource);
/*    echo '<xmp>';
    var_dump($_POST);
    var_dump($resource);die;*/
    return parent::update_instance($resource);
}

function _postprocess(&$resource) {
    global $RESOURCE_WINDOW_OPTIONS;
    $alloptions = $RESOURCE_WINDOW_OPTIONS;

    if ($resource->windowpopup) {
        $optionlist = array();
        foreach ($alloptions as $option) {
            $optionlist[] = $option."=".$resource->$option;
            unset($resource->$option);
        }
        $resource->popup = implode(',', $optionlist);
        unset($resource->windowpopup);
        $resource->options = '';

    } else {
        if (empty($resource->framepage)) {
            $resource->options = '';
        } else {
            $resource->options = 'frame';
        }
        unset($resource->framepage);
        $resource->popup = '';
    }

    $optionlist = array();
    for ($i = 0; $i < $this->maxparameters; $i++) {
        $parametername = "parameter$i";
        $parsename = "parse$i";
        if (!empty($resource->$parsename) and $resource->$parametername != "-") {
            $optionlist[] = $resource->$parametername."=".$resource->$parsename;
        }
        unset($resource->$parsename);
        unset($resource->$parametername);
    }

    $resource->alltext = implode(',', $optionlist);
}


/**
* Display the repository resource
*
* Displays a repository resource embedded, in a frame, or in a popup.
* Output depends on type of file resource.
*
* @param    CFG     global object
*/
function display() {
    global $CFG, $THEME, $SESSION;

/// Set up generic stuff first, including checking for access
    parent::display();

/// Set up some shorthand variables
    $cm = $this->cm;
    $course = $this->course;
    $resource = $this->resource;


    $this->set_parameters(); // set the parameters array

///////////////////////////////////////////////

    /// Possible display modes are:
    /// File displayed in a frame in a normal window
    /// File displayed embedded in a normal page
    /// File displayed in a popup window
    /// File displayed emebedded in a popup window


    /// First, find out what sort of file we are dealing with.
    require_once($CFG->libdir.'/filelib.php');

    $querystring = '';
    $resourcetype = '';
    $embedded = false;