@ -20,7 +20,7 @@
/**
* @package dokeos.main
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University, Refactoring
* @version $Id: index.php 14724 2008-04-02 15:30:14Z elixir_inter $
* @version $Id: index.php 14921 2008-04-16 13:10:59Z pcool $
* @todo check the different @todos in this page and really do them
* @todo check if the news management works as expected
*/
@ -54,6 +54,7 @@ include_once (api_get_path(LIBRARY_PATH).'groupmanager.lib.php');
include_once (api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php');
$loginFailed = isset($_GET['loginFailed']) ? true : isset($loginFailed);
$setting_show_also_closed_courses = (api_get_setting(show_closed_courses)=='true') ? true : false;
// the section (for the tabs)
$this_section = SECTION_CAMPUS;
@ -331,17 +332,29 @@ function logout()
*/
function category_has_open_courses($category)
{
global $setting_show_also_closed_courses;
$user_identified = (api_get_user_id()>0 & & !api_is_anonymous());
$main_course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
$sql_query = "SELECT * FROM $main_course_table WHERE category_code='$category'";
$sql_result = api_sql_query($sql_query, __FILE__, __LINE__);
while ($course = mysql_fetch_array($sql_result))
{
if((api_get_user_id()>0
and $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM)
or ($course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD))
if ($setting_show_also_closed_courses == false)
{
return true; //at least one open course
if((api_get_user_id()>0
and $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM)
or ($course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD))
{
return true; //at least one open course
}
}
else
{
if(isset($course['visibility']))
{
return true; //at least one course (does not matter weither it's open or not because $setting_show_also_closed_courses = true
}
}
}
return false;
@ -549,10 +562,14 @@ function display_lost_password_info()
*/
function display_anonymous_course_list()
{
$ctok = $_SESSION['sec_token'];
$stok = Security::get_token();
//init
$user_identified = (api_get_user_id()>0 & & !api_is_anonymous());
$web_course_path = api_get_path(WEB_COURSE_PATH);
$category = $_GET["category"];
global $setting_show_also_closed_courses;
// Database table definitions
$main_course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
@ -563,7 +580,7 @@ function display_anonymous_course_list()
//get list of courses in category $category
$sql_get_course_list = "SELECT * FROM $main_course_table cours
WHERE category_code = '".mysql_real_escape_string($_GET["category"])."'
ORDER BY UPPER(visual_code)";
ORDER BY title, UPPER(visual_code)";
//removed: AND cours.visibility='".COURSE_VISIBILITY_OPEN_WORLD."'
$sql_result_courses = api_sql_query($sql_get_course_list, __FILE__, __LINE__);
@ -573,15 +590,34 @@ function display_anonymous_course_list()
}
$platform_visible_courses = '';
// $setting_show_also_closed_courses
if($user_identified)
{
$platform_visible_courses = " OR t3.visibility='".COURSE_VISIBILITY_OPEN_PLATFORM."' ";
if ($setting_show_also_closed_courses)
{
$platform_visible_courses = '';
}
else
{
$platform_visible_courses = " AND (t3.visibility='".COURSE_VISIBILITY_OPEN_WORLD."' OR t3.visibility='".COURSE_VISIBILITY_OPEN_PLATFORM."' )";
}
}
else
{
if ($setting_show_also_closed_courses)
{
$platform_visible_courses = '';
}
else
{
$platform_visible_courses = " AND (t3.visibility='".COURSE_VISIBILITY_OPEN_WORLD."' )";
}
}
$sqlGetSubCatList = "
SELECT t1.name,t1.code,t1.parent_id,t1.children_count,COUNT(DISTINCT t3.code) AS nbCourse
FROM $main_category_table t1
LEFT JOIN $main_category_table t2 ON t1.code=t2.parent_id
LEFT JOIN $main_course_table t3 ON (t3.category_code=t1.code AND (t3.visibility='".COURSE_VISIBILITY_OPEN_WORLD."' $platform_visible_courses))
LEFT JOIN $main_course_table t3 ON (t3.category_code=t1.code $platform_visible_courses)
WHERE t1.parent_id ". (empty ($category) ? "IS NULL" : "='$category'")."
GROUP BY t1.name,t1.code,t1.parent_id,t1.children_count ORDER BY t1.tree_pos, t1.name";
$resCats = api_sql_query($sqlGetSubCatList, __FILE__, __LINE__);
@ -669,19 +705,111 @@ function display_anonymous_course_list()
$courses_list_string .= "< hr size = \"1\" noshade = \"noshade\" > \n";
}
$courses_list_string .= "< h4 style = \"margin-top: 0px ; \ " > ".get_lang("CourseList")."< / h4 > \n"."< ul > \n";
if (api_get_user_id())
{
$courses_of_user = get_courses_of_user(api_get_user_id());
}
foreach ($course_list AS $course)
{
if( ($user_identified & & $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM)
or ($course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD))
// $setting_show_also_closed_courses
if ($setting_show_also_closed_courses==false)
{
// if we do not show the closed courses
// we only show the courses that are open to the world (to everybody)
// and the courses that are open to the platform (if the current user is a registered user
if( ($user_identified & & $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM) OR ($course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD))
{
$courses_shown++;
$courses_list_string .= "< li > \n";
$courses_list_string .= "< a href = \"".$web_course_path.$course['directory']."/\" > ".$course['title']."< / a > < br / > ";
if (get_setting("display_coursecode_in_courselist") == "true")
{
$courses_list_string .= $course['visual_code'];
}
if (get_setting("display_coursecode_in_courselist") == "true" AND get_setting("display_teacher_in_courselist") == "true")
{
$courses_list_string .= " - ";
}
if (get_setting("display_teacher_in_courselist") == "true")
{
$courses_list_string .= $course['tutor_name'];
}
if (api_get_setting('show_different_course_language') == 'true' & & $course['course_language'] < > api_get_setting('platformLanguage'))
{
$courses_list_string .= ' - '.$course['course_language'];
}
$courses_list_string .= "< / li > \n";
}
}
// we DO show the closed courses.
// the course is accessible if (link to the course homepage)
// 1. the course is open to the world (doesn't matter if the user is logged in or not): $course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD)
// 2. the user is logged in and the course is open to the world or open to the platform: ($user_identified & & $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM)
// 3. the user is logged in and the user is subscribed to the course and the course visibility is not COURSE_VISIBILITY_CLOSED
// 4. the user is logged in and the user is course admin of te course (regardless of the course visibility setting)
// 5. the user is the platform admin api_is_platform_admin()
//
else
{
$courses_shown++;
$courses_list_string .= "< li > \n";
$courses_list_string .= "< a href = \"".$web_course_path.$course['directory']."/\" > ".$course['title']."< / a > ";
$courses_list_string .= "< br / > ".$course['visual_code']." - ".$course['tutor_name'];
if( $course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD
OR ($user_identified AND $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM)
OR ($user_identified AND key_exists($course['code'],$courses_of_user) AND $course['visibility'] < > COURSE_VISIBILITY_CLOSED)
OR $courses_of_user[$course['code']]['status'] == '1'
OR api_is_platform_admin())
{
$courses_list_string .= "< a href = \"".$web_course_path.$course['directory']."/\" > ";
}
$courses_list_string .= $course['title'];
if( $course['visibility'] == COURSE_VISIBILITY_OPEN_WORLD
OR ($user_identified AND $course['visibility'] == COURSE_VISIBILITY_OPEN_PLATFORM)
OR ($user_identified AND key_exists($course['code'],$courses_of_user) AND $course['visibility'] < > COURSE_VISIBILITY_CLOSED)
OR $courses_of_user[$course['code']]['status'] == '1'
OR api_is_platform_admin())
{
$courses_list_string .="< / a > < br / > ";
}
if (get_setting("display_coursecode_in_courselist") == "true")
{
$courses_list_string .= $course['visual_code'];
}
if (get_setting("display_coursecode_in_courselist") == "true" AND get_setting("display_teacher_in_courselist") == "true")
{
$courses_list_string .= " - ";
}
if (get_setting("display_teacher_in_courselist") == "true")
{
$courses_list_string .= $course['tutor_name'];
}
if (api_get_setting('show_different_course_language') == 'true' & & $course['course_language'] < > api_get_setting('platformLanguage'))
{
$courses_list_string .= ' - '.$course['course_language'];
}
if (api_get_setting('show_different_course_language') == 'true' & & $course['course_language'] < > api_get_setting('platformLanguage'))
{
$courses_list_string .= ' - '.$course['course_language'];
}
// We display a subscription link if
// 1. it is allowed to register for the course and if the course is not already in the courselist of the user and if the user is identiefied
// 2
if ($user_identified AND !key_exists($course['code'],$courses_of_user))
{
if ($course['subscribe'] == '1')
{
$courses_list_string .= "< form action = \"main/auth/courses.php?action=subscribe&category=".$_GET['category']."\" method = \"post\" > ";
$courses_list_string .= '< input type = "hidden" name = "sec_token" value = "'.$stok.'" > ';
$courses_list_string .= "< input type = \"hidden\" name = \"subscribe\" value = \"".$course['code']."\" / > ";
$courses_list_string .= "< input type = \"image\" name = \"unsub\" src = \"main/img/enroll.gif\" alt = \"".get_lang("Subscribe")."\" / > ".get_lang("Subscribe")."< / form > ";
}
else
{
$courses_list_string .= '< br / > '.get_lang("SubscribingNotAllowed");
}
}
$courses_list_string .= "< / li > \n";
}
}
@ -701,4 +829,34 @@ function display_anonymous_course_list()
echo "< p > ", "< a href = \"".api_get_self()."\" > < b > < < < / b > ", get_lang("BackToHomePage"), "< / a > ", "< / p > \n";
}
}
/**
* retrieves all the courses that the user has already subscribed to
* @author Patrick Cool < patrick.cool @ UGent . be > , Ghent University, Belgium
* @param int $user_id: the id of the user
* @return array an array containing all the information of the courses of the given user
*/
function get_courses_of_user($user_id)
{
$table_course = Database::get_main_table(TABLE_MAIN_COURSE);
$table_course_user = Database::get_main_table(TABLE_MAIN_COURSE_USER);
// Secondly we select the courses that are in a category (user_course_cat< >0) and sort these according to the sort of the category
$user_id = intval($user_id);
$sql_select_courses="SELECT course.code k, course.visual_code vc, course.subscribe subscr, course.unsubscribe unsubscr,
course.title i, course.tutor_name t, course.db_name db, course.directory dir, course_rel_user.status status,
course_rel_user.sort sort, course_rel_user.user_course_cat user_course_cat
FROM $table_course course,
$table_course_user course_rel_user
WHERE course.code = course_rel_user.course_code
AND course_rel_user.user_id = '".$user_id."'
ORDER BY course_rel_user.sort ASC";
$result = api_sql_query($sql_select_courses,__FILE__,__LINE__);
while ($row=Database::fetch_array($result))
{
// we only need the database name of the course
$courses[$row['k']] = array("db"=> $row['db'], "code" => $row['k'], "visual_code" => $row['vc'], "title" => $row['i'], "directory" => $row['dir'], "status" => $row['status'], "tutor" => $row['t'], "subscribe" => $row['subscr'], "unsubscribe" => $row['unsubscr'], "sort" => $row['sort'], "user_course_category" => $row['user_course_cat']);
}
return $courses;
}
?>
Patrick Cool
17 years ago