function JLMS_Course_HomePage($course_id, $add_elements_page = false)
{
global $option, $my, $JLMS_DB, $Itemid, $JLMS_CONFIG, $JLMS_SESSION;
//TODO: replace global option declaration
$usertype = $JLMS_CONFIG->get('current_usertype', 0);
$JLMS_ACL =& JLMSFactory::getACL();
$is_teacher = $JLMS_ACL->isTeacher();
$AND_ST = "";
if (false !== ($enroll_period = JLMS_getEnrolPeriod($my->id, $course_id))) {
$AND_ST = " AND IF(is_time_related, (show_period < '" . $enroll_period . "' ), 1) ";
}
$this->course_id = $course_id;
$curr_date = date("Y-m-d");
$is_curtopic = intval(mosgetparam($_REQUEST, 't_id', 0));
//create list of topics
if ($usertype == 1) {
$published = '1';
} else {
$published = "published=1 AND (publish_start=0 OR start_date<='{$curr_date}') AND (publish_end=0 OR end_date>='{$curr_date}')";
}
$query = "SELECT * FROM #__lms_topics WHERE course_id={$course_id} " . $AND_ST . " AND {$published} " . ($is_curtopic ? " AND id=" . $is_curtopic : "") . " ORDER BY ordering";
$JLMS_DB->setQuery($query);
$this->topics = $JLMS_DB->loadObjectList('id');
//get items of the course
//2 - documents
if ($add_elements_page) {
$rows = array();
$possibilities = new stdClass();
JLMSDocs::FillList($course_id, $rows, $possibilities, false, false);
$this->elements[_DOCUMENT_ID] = JLMSDocs::GetItemsbyPermission($rows, 'manage');
} else {
$AND_ST_D = "";
if (false !== ($enroll_period = JLMS_getEnrolPeriod($my->id, $course_id))) {
$AND_ST_D = " AND IF(a.is_time_related, (a.show_period < '" . $enroll_period . "' ), 1) ";
}
$query = "SELECT a.*, b.file_name FROM #__lms_documents as a LEFT JOIN #__lms_files as b ON a.file_id = b.id AND a.folder_flag = 0 WHERE a.course_id={$course_id}" . $AND_ST_D;
$JLMS_DB->setQuery($query);
$this->elements[_DOCUMENT_ID] = $JLMS_DB->loadObjectList('id');
foreach ($this->elements[_DOCUMENT_ID] as $elem) {
if ($elem->folder_flag == 3) {
$query = "SELECT a.*, b.file_name" . "\n FROM #__lms_outer_documents as a LEFT JOIN #__lms_files as b ON a.file_id = b.id AND a.folder_flag = 0 " . "\n WHERE a.folder_flag = 0 AND a.id = " . $elem->file_id;
$JLMS_DB->SetQuery($query);
$out_row = $JLMS_DB->LoadObjectList();
if (count($out_row) && isset($out_row[0]->allow_link) && $out_row[0]->allow_link == 1) {
$this->elements[_DOCUMENT_ID][$elem->id]->doc_name = $out_row[0]->doc_name;
$this->elements[_DOCUMENT_ID][$elem->id]->doc_description = $out_row[0]->doc_description;
$this->elements[_DOCUMENT_ID][$elem->id]->file_id = $out_row[0]->file_id;
$this->elements[_DOCUMENT_ID][$elem->id]->file_name = $out_row[0]->file_name;
} else {
unset($this->elements[_DOCUMENT_ID][$elem->id]);
}
}
}
$this->elements[_DOCUMENT_ID] = AppendFileIcons_toList($this->elements[_DOCUMENT_ID]);
}
//get max tree level
$this->max_lvl = getDirNesting($this->elements[_DOCUMENT_ID], 0);
global $max_lvl;
$max_lvl = $this->max_lvl;
//3 - links
$query = "SELECT * FROM #__lms_links WHERE course_id={$course_id}" . $AND_ST;
$JLMS_DB->setQuery($query);
$this->elements[_LINK_ID] = $JLMS_DB->loadObjectList('id');
//4 - contents ... er... TODO
//5 - quizs
$query = "SELECT *, c_id AS id FROM #__lms_quiz_t_quiz WHERE course_id={$course_id}" . $AND_ST;
$JLMS_DB->setQuery($query);
$this->elements[_QUIZ_ID] = $JLMS_DB->loadObjectList('c_id');
$quizzes_i = array();
foreach ($this->elements[_QUIZ_ID] as $row) {
$quizzes_i[] = $row->c_id;
}
//add results for student
if ($usertype == 2 && count($this->elements[_QUIZ_ID])) {
$quizzes_r = array();
foreach ($this->elements[_QUIZ_ID] as $row) {
$quizzes_r[] = $row->c_id;
}
$q_items_num = array();
$extra_info_cells = array();
if (!empty($quizzes_r)) {
$quizzes_r_cid = implode(',', $quizzes_r);
$query = "SELECT * FROM #__lms_quiz_results WHERE quiz_id IN ({$quizzes_r_cid}) AND course_id={$course_id} AND user_id={$my->id} GROUP BY quiz_id";
$JLMS_DB->SetQuery($query);
$extra_info_cells = $JLMS_DB->loadObjectList();
}
foreach ($this->elements[_QUIZ_ID] as $i => $value) {
$this->elements[_QUIZ_ID][$i]->start_date = '-';
$this->elements[_QUIZ_ID][$i]->end_date = '-';
$this->elements[_QUIZ_ID][$i]->status = -1;
$this->elements[_QUIZ_ID][$i]->user_passed = -1;
$this->elements[_QUIZ_ID][$i]->points = -1;
$this->elements[_QUIZ_ID][$i]->user_score = 0;
$this->elements[_QUIZ_ID][$i]->quiz_max_score = 0;
foreach ($extra_info_cells as $cell) {
if ($cell->quiz_id == $this->elements[_QUIZ_ID][$i]->c_id) {
$this->elements[_QUIZ_ID][$i]->start_date = JLMS_dateToDisplay($cell->quiz_date, false, $JLMS_CONFIG->get('offset') * 60 * 60 - $cell->user_time, '\\<\\b\\r \\/>H:i:s');
$this->elements[_QUIZ_ID][$i]->end_date = JLMS_dateToDisplay($cell->quiz_date, false, $JLMS_CONFIG->get('offset') * 60 * 60, '\\<\\b\\r \\/>H:i:s');
$this->elements[_QUIZ_ID][$i]->points = $cell->user_score;
$this->elements[_QUIZ_ID][$i]->status = $cell->user_passed;
$this->elements[_QUIZ_ID][$i]->user_passed = $cell->user_passed;
$this->elements[_QUIZ_ID][$i]->user_score = $cell->user_score;
$this->elements[_QUIZ_ID][$i]->quiz_max_score = $cell->quiz_max_score;
}
}
}
unset($extra_info_cells);
require_once _JOOMLMS_FRONT_HOME . DS . "includes" . DS . "lms_certificates.php";
$arr = array();
JLMS_Certificates::JLMS_GB_getUserCertificates($course_id, $my->id, $arr);
$arr1 = isset($arr['user_quiz_certificates']) ? $arr['user_quiz_certificates'] : array();
foreach ($this->elements[_QUIZ_ID] as $i => $value) {
for ($j = 0; $j < count($arr1); $j++) {
if ($arr1[$j]->c_quiz_id == $this->elements[_QUIZ_ID][$i]->c_id) {
$this->elements[_QUIZ_ID][$i]->link_certificate = "<a target = \"_blank\" href = \"" . $JLMS_CONFIG->get('live_site') . "/index.php?tmpl=component&option=" . $option . "&no_html=1&task=print_quiz_cert&course_id=" . $course_id . "&stu_quiz_id=" . $arr1[$j]->stu_quiz_id . "&user_unique_id=" . $arr1[$j]->user_unique_id . "\"><img src = \"" . $JLMS_CONFIG->get('live_site') . "/components/com_joomla_lms/lms_images/toolbar/btn_certificate.png\" border = \"0\" align=\"top\" alt=\"certificate\"/></a>";
}
}
}
}
//6 - scorm ... er... TODO
//7 - learning paths
$lpaths = array();
if ($course_id && $usertype) {
//$JLMS_SESSION->clear('redirect_to_learnpath');
if ($usertype == 1) {
$query = "SELECT * FROM #__lms_learn_paths WHERE course_id = '" . $course_id . "'" . $AND_ST . "\n ORDER BY ordering";
} elseif ($usertype == 2) {
//$query = "SELECT a.*, b.user_status as r_status, b.start_time as r_start, b.end_time as r_end"
//. "\n FROM #__lms_learn_paths as a LEFT JOIN #__lms_learn_path_results as b ON a.id = b.lpath_id AND b.course_id = '".$course_id."' AND b.user_id = '".$my->id."'"
$query = "SELECT a.*, '' as r_status, '' as r_start, '' as r_end" . "\n FROM #__lms_learn_paths as a" . "\n WHERE a.course_id = '" . $course_id . "'" . "\n AND a.published = 1" . "\n ORDER BY a.ordering";
}
$JLMS_DB->SetQuery($query);
$lpaths = $JLMS_DB->LoadObjectList();
if ($usertype == 2) {
$user_ids = array();
$user_ids[] = $my->id;
require_once _JOOMLMS_FRONT_HOME . "/includes/lms_grades.lib.php";
JLMS_LP_populate_results($course_id, $lpaths, $user_ids);
// 13 August 2007 (DEN) Check for prerequisites.
// 1. get the list of lpath_ids.
$lpath_ids = array();
foreach ($lpaths as $lpath) {
$lpath_ids[] = $lpath->id;
}
if (!empty($lpath_ids)) {
$lpath_ids_str = implode(',', $lpath_ids);
// 2. get the list of prerequisites
// SELECT from two tables (+ #__lms_learn_paths) - because the prereq lpath could be deleted...
$query = "SELECT a.* FROM #__lms_learn_path_prerequisites as a, #__lms_learn_paths as b" . "\n WHERE a.lpath_id IN ({$lpath_ids_str}) AND a.req_id = b.id";
$JLMS_DB->SetQuery($query);
$prereqs = $JLMS_DB->LoadObjectList();
if (!empty($prereqs)) {
// 3. compare lists of prereqs to the lists of lpaths.
$i = 0;
while ($i < count($lpaths)) {
$is_hidden = false;
$o = 0;
while ($o < count($prereqs)) {
if ($prereqs[$o]->lpath_id == $lpaths[$i]->id) {
$j = 0;
while ($j < count($lpaths)) {
if ($lpaths[$j]->id == $prereqs[$o]->req_id) {
if (!$lpaths[$j]->item_id) {
if (empty($lpaths[$j]->r_status)) {
$is_hidden = true;
break;
} else {
$end_time = strtotime($lpaths[$j]->r_end);
$current_time = strtotime(date("Y-m-d H:i:s"));
if ($current_time > $end_time && $current_time - $end_time < $prereqs[$o]->time_minutes * 60) {
$is_hidden = true;
break;
}
}
} else {
if (empty($lpaths[$j]->s_status)) {
$is_hidden = true;
break;
} else {
$end_time = strtotime($lpaths[$j]->r_end);
$current_time = strtotime(date("Y-m-d H:i:s"));
if ($current_time > $end_time && $current_time - $end_time < $prereqs[$o]->time_minutes * 60) {
$is_hidden = true;
break;
}
}
}
}
$j++;
}
}
$o++;
}
$lpaths[$i]->is_hidden = $is_hidden;
$i++;
}
}
}
}
}
foreach ($lpaths as $lpath) {
$this->elements[_LPATH_ID][$lpath->id] = $lpath;
}
//populate topics with links to their items
$query = "SELECT * FROM #__lms_topic_items WHERE course_id={$course_id} ORDER BY ordering";
$JLMS_DB->setQuery($query);
$items = $JLMS_DB->loadObjectList();
for ($i = 0; $i < count($items); $i++) {
if ($items[$i]->item_type == 7) {
$query = "SELECT lp_type FROM #__lms_learn_paths WHERE id = '" . $items[$i]->item_id . "'" . $AND_ST;
$JLMS_DB->SetQuery($query);
$lp_type = $JLMS_DB->LoadResult();
if ($lp_type == 2) {
$query = "SELECT item_id FROM #__lms_learn_paths WHERE id = '" . $items[$i]->item_id . "'";
$JLMS_DB->SetQuery($query);
$learn_path_id = $JLMS_DB->LoadResult();
$query = "SELECT scorm_package, params as scorm_params, width as scorm_width, height as scorm_height FROM #__lms_n_scorm WHERE id = '" . $learn_path_id . "'";
$JLMS_DB->SetQuery($query);
$outer_doc = null;
$scorm_info = null;
$scorm_info = $JLMS_DB->LoadObject();
if (is_object($scorm_info)) {
$this->elements[_LPATH_ID][$items[$i]->item_id]->scorm_params = $scorm_info->scorm_params;
$this->elements[_LPATH_ID][$items[$i]->item_id]->scorm_width = $scorm_info->scorm_width;
$this->elements[_LPATH_ID][$items[$i]->item_id]->scorm_height = $scorm_info->scorm_height;
$scorm_package = $scorm_info->scorm_package;
$query = "SELECT id FROM #__lms_n_scorm WHERE scorm_package = '" . $scorm_package . "' AND course_id = 0";
$JLMS_DB->SetQuery($query);
$scorm_lib_id = $JLMS_DB->LoadResult();
$query = "SELECT outdoc_share, owner_id, allow_link FROM #__lms_outer_documents WHERE file_id = '" . $scorm_lib_id . "' AND folder_flag = 3";
$JLMS_DB->SetQuery($query);
$outer_doc = $JLMS_DB->LoadObject();
}
if (is_object($outer_doc) && isset($outer_doc->allow_link) && $outer_doc->allow_link == 1) {
// 01May2009: new library policy: if 'allow_link' is enabled - we can view already added resource !
} else {
unset($items[$i]);
}
} elseif ($lp_type == 1) {
$query = "SELECT item_id FROM #__lms_learn_paths WHERE id = '" . $items[$i]->item_id . "'";
$JLMS_DB->SetQuery($query);
$learn_path_id = $JLMS_DB->LoadResult();
if ($learn_path_id) {
$query = "SELECT params as scorm_params, width as scorm_width, height as scorm_height FROM #__lms_n_scorm WHERE id = '" . $learn_path_id . "'";
$JLMS_DB->SetQuery($query);
$scorm_info = null;
$scorm_info = $JLMS_DB->LoadObject();
if (is_object($scorm_info)) {
$this->elements[_LPATH_ID][$items[$i]->item_id]->scorm_params = $scorm_info->scorm_params;
$this->elements[_LPATH_ID][$items[$i]->item_id]->scorm_width = $scorm_info->scorm_width;
$this->elements[_LPATH_ID][$items[$i]->item_id]->scorm_height = $scorm_info->scorm_height;
}
}
}
}
}
if (!$is_teacher) {
$this->_filterItemsByShowPeriod($items, $course_id);
}
$mas = array();
foreach ($items as $k => $v) {
$mas[] = $items[$k];
}
unset($lpath);
$items = $mas;
$links = array();
foreach ($items as $item) {
$item_tmp->id = $item->item_id;
$item_tmp->type = $item->item_type;
$item_tmp->ordering = $item->ordering;
$links[$item->topic_id][] = $item;
}
$this->links = $links;
}
function &GetChildsToPublish(&$rows, $items, $reset_ticker = false)
{
// if $loop_ticker is very high - seems like our function got into loop forever - interrupt it in this case.
static $loop_ticker;
if ($reset_ticker) {
$loop_ticker = 0;
}
if (!$loop_ticker) {
$loop_ticker = 0;
}
$loop_ticker++;
$change_state_items = array();
foreach ($items as $nc) {
$childs =& JLMSDocs::GetItemChilds($rows, $nc);
$child_ids = array();
$child_folder_ids = array();
foreach ($childs as $child) {
if (isset($child->p_publish) && $child->p_publish) {
$change_state_items[] = $child->id;
}
if ($child->folder_flag == 1) {
$child_folder_ids[] = $child->id;
}
}
if (count($child_folder_ids)) {
if ($loop_ticker < 100) {
// DEN: 100 nested folders is more than enough ;)
$un_childs =& JLMSDocs::GetChildsToPublish($rows, $child_folder_ids);
} else {
$un_childs = array();
}
$change_state_items = array_merge($change_state_items, $un_childs);
}
}
return $change_state_items;
}
