Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/inc/lib/course_home.lib.php

1096 lines
55 KiB

<?php
/* For licensing terms, see /license.txt */
define('SHORTCUTS_HORIZONTAL', 0);
define('SHORTCUTS_VERTICAL', 1);
class CourseHome
{
/**
* Gets the html content to show in the 3 column view
*/
public static function show_tool_3column($cat) {
global $_user;
$TBL_ACCUEIL = Database :: get_course_table(TABLE_TOOL_LIST);
$TABLE_TOOLS = Database :: get_main_table(TABLE_MAIN_COURSE_MODULE);
$numcols = 3;
$table = new HTML_Table('width="100%"');
$all_tools = array();
$course_id = api_get_course_int_id();
switch ($cat) {
case 'Basic' :
$condition_display_tools = ' WHERE a.c_id = '.$course_id.' AND a.link=t.link AND t.position="basic" ';
if ((api_is_coach() || api_is_course_tutor()) && $_SESSION['studentview'] != 'studentview') {
$condition_display_tools = ' WHERE a.c_id = '.$course_id.' AND a.link=t.link AND (t.position="basic" OR a.name = "'.TOOL_TRACKING.'") ';
}
$sql = "SELECT a.*, t.image img, t.row, t.column FROM $TBL_ACCUEIL a, $TABLE_TOOLS t
$condition_display_tools ORDER BY t.row, t.column";
break;
case 'External' :
if (api_is_allowed_to_edit()) {
$sql = "SELECT a.*, t.image img FROM $TBL_ACCUEIL a, $TABLE_TOOLS t
WHERE a.c_id = $course_id AND ((a.link=t.link AND t.position='external')
OR (a.visibility <= 1 AND (a.image = 'external.gif' OR a.image = 'scormbuilder.gif' OR t.image = 'blog.gif') AND a.image=t.image))
ORDER BY a.id";
} else {
$sql = "SELECT a.*, t.image img FROM $TBL_ACCUEIL a, $TABLE_TOOLS t
WHERE a.c_id = $course_id AND (a.visibility = 1 AND ((a.link=t.link AND t.position='external')
OR ((a.image = 'external.gif' OR a.image = 'scormbuilder.gif' OR t.image = 'blog.gif') AND a.image=t.image)))
ORDER BY a.id";
}
break;
case 'courseAdmin' :
$sql = "SELECT a.*, t.image img, t.row, t.column FROM $TBL_ACCUEIL a, $TABLE_TOOLS t
WHERE a.c_id = $course_id AND admin=1 AND a.link=t.link ORDER BY t.row, t.column";
break;
case 'platformAdmin' :
$sql = "SELECT *, image img FROM $TBL_ACCUEIL WHERE c_id = $course_id AND visibility = 2 ORDER BY id";
}
$result = Database::query($sql);
// Grabbing all the tools from $course_tool_table
while ($tool = Database::fetch_array($result)) {
$all_tools[] = $tool;
}
$course_id = api_get_course_int_id();
// Grabbing all the links that have the property on_homepage set to 1
if ($cat == 'External') {
$tbl_link = Database :: get_course_table(TABLE_LINK);
$tbl_item_property = Database :: get_course_table(TABLE_ITEM_PROPERTY);
if (api_is_allowed_to_edit(null, true)) {
$sql_links = "SELECT tl.*, tip.visibility
FROM $tbl_link tl
LEFT JOIN $tbl_item_property tip ON tip.tool='link' AND tip.ref=tl.id
WHERE tl.c_id = $course_id AND
tip.c_id = $course_id AND
tl.on_homepage='1' AND
tip.visibility != 2";
} else {
$sql_links = "SELECT tl.*, tip.visibility
FROM $tbl_link tl
LEFT JOIN $tbl_item_property tip ON tip.tool='link' AND tip.ref=tl.id
WHERE tl.c_id = $course_id AND
tip.c_id = $course_id AND
tl.on_homepage='1' AND
tip.visibility = 1";
}
$result_links = Database::query($sql_links);
while ($links_row = Database::fetch_array($result_links)) {
$properties = array();
$properties['name'] = $links_row['title'];
$properties['link'] = $links_row['url'];
$properties['visibility'] = $links_row['visibility'];
$properties['img'] = 'external.gif';
$properties['adminlink'] = api_get_path(WEB_CODE_PATH).'link/link.php?action=editlink&amp;id='.$links_row['id'];
$all_tools[] = $properties;
}
}
$cell_number = 0;
// Draw line between basic and external, only if there are entries in External
if ($cat == 'External' && count($all_tools)) {
$table->setCellContents(0, 0, '<hr noshade="noshade" size="1"/>');
$table->updateCellAttributes(0, 0, 'colspan="3"');
$cell_number += $numcols;
}
foreach ($all_tools as & $tool) {
if ($tool['image'] == 'scormbuilder.gif') {
// check if the published learnpath is visible for student
$published_lp_id = self::get_published_lp_id_from_link($tool['link']);
if (!api_is_allowed_to_edit(null, true) &&
!learnpath::is_lp_visible_for_student($published_lp_id, api_get_user_id(), api_get_course_id(), api_get_session_id())) {
continue;
}
}
if (api_get_session_id() != 0 && in_array($tool['name'], array('course_maintenance', 'course_setting'))) {
continue;
}
$cell_content = '';
// The name of the tool
$tool_name = self::translate_tool_name($tool);
$link_annex = '';
// The url of the tool
if ($tool['img'] != 'external.gif') {
$tool['link'] = api_get_path(WEB_CODE_PATH).$tool['link'];
$qm_or_amp = strpos($tool['link'], '?') === false ? '?' : '&amp;';
$link_annex = $qm_or_amp.api_get_cidreq();
} else {
// If an external link ends with 'login=', add the actual login...
$pos = strpos($tool['link'], '?login=');
$pos2 = strpos($tool['link'], '&amp;login=');
if ($pos !== false or $pos2 !== false) {
$link_annex = $_user['username'];
}
}
// Setting the actual image url
$tool['img'] = api_get_path(WEB_IMG_PATH).$tool['img'];
// VISIBLE
if (($tool['visibility'] || ((api_is_coach() || api_is_course_tutor()) && $tool['name'] == TOOL_TRACKING)) || $cat == 'courseAdmin' || $cat == 'platformAdmin') {
if (strpos($tool['name'], 'visio_') !== false) {
$cell_content .= '<a href="javascript: void(0);" onclick="javascript: window.open(\''.$tool['link'].$link_annex.'\',\'window_visio'.$_SESSION['_cid'].'\',config=\'height=\'+730+\', width=\'+1020+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="'.$tool['target'].'"><img src="'.$tool['img'].'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">'.$tool_name.'</a>';
} elseif (strpos($tool['name'], 'chat') !== false && api_get_course_setting('allow_open_chat_window')) {
$cell_content .= '<a href="javascript: void(0);" onclick="javascript: window.open(\''.$tool['link'].$link_annex.'\',\'window_chat'.$_SESSION['_cid'].'\',config=\'height=\'+600+\', width=\'+825+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="'.$tool['target'].'"><img src="'.$tool['img'].'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">'.$tool_name.'</a>';
// don't replace img with display::return_icon because $tool['img'] = api_get_path(WEB_IMG_PATH).$tool['img']
} else {
$cell_content .= '<a href="'.$tool['link'].$link_annex.'" target="'.$tool['target'].'"><img src="'.$tool['img'].'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">'.$tool_name.'</a>';
// don't replace img with display::return_icon because $tool['img'] = api_get_path(WEB_IMG_PATH).$tool['img']
}
} else {
// INVISIBLE
if (api_is_allowed_to_edit(null, true)) {
if (strpos($tool['name'], 'visio_') !== false) {
$cell_content .= '<a href="javascript: void(0);" onclick="window.open(\''.$tool['link'].$link_annex.'\',\'window_visio'.$_SESSION['_cid'].'\',config=\'height=\'+730+\', width=\'+1020+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="'.$tool['target'].'"><img src="'.str_replace(".gif", "_na.gif", $tool['img']).'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">'.$tool_name.'</a>';
} elseif (strpos($tool['name'], 'chat') !== false && api_get_course_setting('allow_open_chat_window')) {
$cell_content .= '<a href="javascript: void(0);" onclick="javascript: window.open(\''.$tool['link'].$link_annex.'\',\'window_chat'.$_SESSION['_cid'].'\',config=\'height=\'+600+\', width=\'+825+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="'.$tool['target'].'" class="invisible"><img src="'.str_replace(".gif", "_na.gif", $tool['img']).'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">'.$tool_name.'</a>';
// don't replace img with display::return_icon because $tool['img'] = api_get_path(WEB_IMG_PATH).$tool['img']
} else {
$cell_content .= '<a href="'.$tool['link'].$link_annex.'" target="'.$tool['target'].'" class="invisible">
<img src="'.str_replace(".gif", "_na.gif", $tool['img']).'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">'.$tool_name.'</a>';
// don't replace img with display::return_icon because $tool['img'] = api_get_path(WEB_IMG_PATH).$tool['img']
}
} else {
$cell_content .= '<img src="'.str_replace(".gif", "_na.gif", $tool['img']).'" title="'.$tool_name.'" alt="'.$tool_name.'" align="absmiddle" border="0">';
// don't replace img with display::return_icon because $tool['img'] = api_get_path(WEB_IMG_PATH).$tool['img']
$cell_content .= '<span class="invisible">'.$tool_name.'</span>';
}
}
$lnk = array();
if (api_is_allowed_to_edit(null, true) && $cat != "courseAdmin" && !strpos($tool['link'], 'learnpath_handler.php?learnpath_id') && !api_is_coach()) {
if ($tool['visibility']) {
$link['name'] = Display::return_icon('remove.gif', get_lang('Deactivate'), array('style' => 'vertical-align: middle;'));
$link['cmd'] = "hide=yes";
$lnk[] = $link;
} else {
$link['name'] = Display::return_icon('add.gif', get_lang('Activate'), array('style' => 'vertical-align: middle;'));
$link['cmd'] = "restore=yes";
$lnk[] = $link;
}
if (is_array($lnk)) {
foreach ($lnk as & $this_lnk) {
if ($tool['adminlink']) {
$cell_content .= '<a href="'.$properties['adminlink'].'">'.Display::return_icon('edit.gif', get_lang('Edit')).'</a>';
} else {
$cell_content .= '<a href="'.api_get_self().'?id='.$tool['id'].'&amp;'.$this_lnk['cmd'].'">'.$this_lnk['name'].'</a>';
}
}
}
}
$table->setCellContents($cell_number / $numcols, ($cell_number) % $numcols, $cell_content);
$table->updateCellAttributes($cell_number / $numcols, ($cell_number) % $numcols, 'width="32%" height="42"');
$cell_number++;
}
return $table->toHtml();
}
/**
* Displays the tools of a certain category.
*
* @return void
* @param string $course_tool_category contains the category of tools to display:
* "Public", "PublicButHide", "courseAdmin", "claroAdmin"
*/
public static function show_tool_2column($course_tool_category) {
$html = '';
$web_code_path = api_get_path(WEB_CODE_PATH);
$course_tool_table = Database::get_course_table(TABLE_TOOL_LIST);
$course_id = api_get_course_int_id();
switch ($course_tool_category) {
case TOOL_PUBLIC:
$condition_display_tools = ' WHERE c_id = '.$course_id.' AND visibility = 1 ';
if ((api_is_coach() || api_is_course_tutor()) && $_SESSION['studentview'] != 'studentview') {
$condition_display_tools = ' WHERE c_id = '.$course_id.' AND (visibility = 1 OR (visibility = 0 AND name = "'.TOOL_TRACKING.'")) ';
}
$result = Database::query("SELECT * FROM $course_tool_table $condition_display_tools ORDER BY id");
$col_link = "##003399";
break;
case TOOL_PUBLIC_BUT_HIDDEN:
$result = Database::query("SELECT * FROM $course_tool_table WHERE c_id = $course_id AND visibility=0 AND admin=0 ORDER BY id");
$col_link = "##808080";
break;
case TOOL_COURSE_ADMIN:
$result = Database::query("SELECT * FROM $course_tool_table WHERE c_id = $course_id AND admin=1 AND visibility != 2 ORDER BY id");
$col_link = "##003399";
break;
case TOOL_PLATFORM_ADMIN:
$result = Database::query("SELECT * FROM $course_tool_table WHERE c_id = $course_id AND visibility = 2 ORDER BY id");
$col_link = "##003399";
}
$i = 0;
// Grabbing all the tools from $course_tool_table
while ($temp_row = Database::fetch_array($result)) {
if ($course_tool_category == TOOL_PUBLIC_BUT_HIDDEN && $temp_row['image'] != 'scormbuilder.gif') {
$temp_row['image'] = str_replace('.gif', '_na.gif', $temp_row['image']);
}
$all_tools_list[] = $temp_row;
}
// Grabbing all the links that have the property on_homepage set to 1
$course_link_table = Database::get_course_table(TABLE_LINK);
$course_item_property_table = Database::get_course_table(TABLE_ITEM_PROPERTY);
switch ($course_tool_category) {
case TOOL_PUBLIC:
$sql_links = "SELECT tl.*, tip.visibility
FROM $course_link_table tl
LEFT JOIN $course_item_property_table tip ON tip.tool='link' AND tl.c_id = tip.c_id AND tl.c_id = $course_id AND tip.ref=tl.id
WHERE tl.on_homepage='1' AND tip.visibility = 1";
break;
case TOOL_PUBLIC_BUT_HIDDEN:
$sql_links = "SELECT tl.*, tip.visibility
FROM $course_link_table tl
LEFT JOIN $course_item_property_table tip ON tip.tool='link' AND tl.c_id = tip.c_id AND tl.c_id = $course_id AND tip.ref=tl.id
WHERE tl.on_homepage='1' AND tip.visibility = 0";
break;
default:
$sql_links = null;
break;
}
if ($sql_links != null) {
$properties = array();
$result_links = Database::query($sql_links);
while ($links_row = Database::fetch_array($result_links)) {
unset($properties);
$properties['name'] = $links_row['title'];
$properties['link'] = $links_row['url'];
$properties['visibility'] = $links_row['visibility'];
$properties['image'] = $course_tool_category == TOOL_PUBLIC_BUT_HIDDEN ? 'external_na.gif' : 'external.gif';
$properties['adminlink'] = api_get_path(WEB_CODE_PATH).'link/link.php?action=editlink&id='.$links_row['id'];
$all_tools_list[] = $properties;
}
}
if (isset($all_tools_list)) {
$lnk = array();
foreach ($all_tools_list as & $tool) {
if ($tool['image'] == 'scormbuilder.gif') {
// display links to lp only for current session
/* if (api_get_session_id() != $tool['session_id']) {
continue;
} */
// check if the published learnpath is visible for student
$published_lp_id = self::get_published_lp_id_from_link($tool['link']);
if (!api_is_allowed_to_edit(null, true) &&
!learnpath::is_lp_visible_for_student($published_lp_id, api_get_user_id(), api_get_course_id(), api_get_session_id())) {
continue;
}
}
if (api_get_session_id() != 0 && in_array($tool['name'], array('course_maintenance', 'course_setting'))) {
continue;
}
if (!($i % 2)) {
$html .= "<tr valign=\"top\">";
}
// NOTE : Table contains only the image file name, not full path
if (stripos($tool['link'], 'http://') === false && stripos($tool['link'], 'https://') === false && stripos($tool['link'], 'ftp://') === false) {
$tool['link'] = $web_code_path.$tool['link'];
}
if ($course_tool_category == TOOL_PUBLIC_BUT_HIDDEN) {
$class = 'class="invisible"';
}
$qm_or_amp = strpos($tool['link'], '?') === false ? '?' : '&amp;';
$tool['link'] = $tool['link'];
$html .= '<td width="50%" height="30">';
if (strpos($tool['name'], 'visio_') !== false) {
$html .= '<a '.$class.' href="javascript: void(0);" onclick="javascript: window.open(\''.htmlspecialchars($tool['link']).(($tool['image'] == 'external.gif' || $tool['image'] == 'external_na.gif') ? '' : $qm_or_amp.api_get_cidreq()).'\',\'window_visio'.$_SESSION['_cid'].'\',config=\'height=\'+730+\', width=\'+1020+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="'.$tool['target'].'">';
} elseif (strpos($tool['name'], 'chat') !== false && api_get_course_setting('allow_open_chat_window')) {
$html .= '<a href="javascript: void(0);" onclick="javascript: window.open(\''.htmlspecialchars($tool['link']).$qm_or_amp.api_get_cidreq().'\',\'window_chat'.$_SESSION['_cid'].'\',config=\'height=\'+600+\', width=\'+825+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="'.$tool['target'].'"'.$class.'>';
} else {
$html .= '<a href="'.htmlspecialchars($tool['link']).(($tool['image'] == 'external.gif' || $tool['image'] == 'external_na.gif') ? '' : $qm_or_amp.api_get_cidreq()).'" target="'.$tool['target'].'" '.$class.'>';
}
$tool_name = self::translate_tool_name($tool);
$html .= Display::return_icon($tool['image'], $tool_name, array(), null, ICON_SIZE_MEDIUM).'&nbsp;'.$tool_name.'</a>';
// This part displays the links to hide or remove a tool.
// These links are only visible by the course manager.
unset($lnk);
if (api_is_allowed_to_edit(null, true) && !api_is_coach()) {
if ($tool['visibility'] == '1' || $tool['name'] == TOOL_TRACKING) {
$link['name'] = Display::return_icon('remove.gif', get_lang('Deactivate'));
$link['cmd'] = 'hide=yes';
$lnk[] = $link;
}
if ($course_tool_category == TOOL_PUBLIC_BUT_HIDDEN) {
$link['name'] = Display::return_icon('add.gif', get_lang('Activate'));
$link['cmd'] = 'restore=yes';
$lnk[] = $link;
if ($tool['added_tool'] == 1) {
$link['name'] = Display::return_icon('delete.gif', get_lang('Remove'));
$link['cmd'] = 'remove=yes';
$lnk[] = $link;
}
}
if ($tool['adminlink']) {
$html .= '<a href="'.$tool['adminlink'].'">'.Display::return_icon('edit.gif', get_lang('Edit')).'</a>';
}
}
if (api_is_platform_admin() && !api_is_coach()) {
if ($tool['visibility'] == 2) {
$link['name'] = Display::return_icon('undelete.gif', get_lang('Activate'));
$link['cmd'] = 'hide=yes';
$lnk[] = $link;
if ($tool['added_tool'] == 1) {
$link['name'] = get_lang('Delete');
$link['cmd'] = 'askDelete=yes';
$lnk[] = $link;
}
}
if ($tool['visibility'] == 0 && $tool['added_tool'] == 0) {
$link['name'] = Display::return_icon('delete.gif', get_lang('Remove'));
$link['cmd'] = 'remove=yes';
$lnk[] = $link;
}
}
if (is_array($lnk)) {
foreach ($lnk as & $this_link) {
if (!$tool['adminlink']) {
$html .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&amp;id='.$tool['id'].'&amp;'.$this_link['cmd'].'">'.$this_link['name'].'</a>';
}
}
}
$html .= "</td>";
if ($i % 2) {
$html .= "</tr>";
}
$i++;
}
}
if ($i % 2) {
$html .= "<td width=\"50%\">&nbsp;</td></tr>";
}
return $html;
}
/**
* Gets the tools of a certain category. Returns an array expected
* by show_tools_category()
* @param string $course_tool_category contains the category of tools to
* display: "toolauthoring", "toolinteraction", "tooladmin", "tooladminplatform", "toolplugin"
* @return array
*/
public static function get_tools_category($course_tool_category) {
$course_tool_table = Database::get_course_table(TABLE_TOOL_LIST);
$is_platform_admin = api_is_platform_admin();
$all_tools_list = array();
// Condition for the session
$session_id = api_get_session_id();
$course_id = api_get_course_int_id();
$condition_session = api_get_session_condition($session_id, true, true);
switch ($course_tool_category) {
case TOOL_STUDENT_VIEW:
$condition_display_tools = ' WHERE visibility = 1 AND (category = "authoring" OR category = "interaction" OR category = "plugin") ';
if ((api_is_coach() || api_is_course_tutor()) && $_SESSION['studentview'] != 'studentview') {
$condition_display_tools = ' WHERE (visibility = 1 AND (category = "authoring" OR category = "interaction" OR category = "plugin") OR (name = "'.TOOL_TRACKING.'") ) ';
}
$sql = "SELECT * FROM $course_tool_table $condition_display_tools AND c_id = $course_id $condition_session ORDER BY id";
$result = Database::query($sql);
$col_link = "##003399";
break;
case TOOL_AUTHORING:
$sql = "SELECT * FROM $course_tool_table WHERE category = 'authoring' AND c_id = $course_id $condition_session ORDER BY id";
$result = Database::query($sql);
$col_link = "##003399";
break;
case TOOL_INTERACTION:
$sql = "SELECT * FROM $course_tool_table WHERE category = 'interaction' AND c_id = $course_id $condition_session ORDER BY id";
$result = Database::query($sql);
$col_link = "##003399";
break;
case TOOL_ADMIN_VISIBLE:
$sql = "SELECT * FROM $course_tool_table WHERE category = 'admin' AND visibility ='1' AND c_id = $course_id $condition_session ORDER BY id";
$result = Database::query($sql);
$col_link = "##003399";
break;
case TOOL_ADMIN_PLATFORM:
$sql = "SELECT * FROM $course_tool_table WHERE category = 'admin' AND c_id = $course_id $condition_session ORDER BY id";
$result = Database::query($sql);
$col_link = "##003399";
break;
case TOOL_COURSE_PLUGIN:
//Other queries recover id, name, link, image, visibility, admin, address, added_tool, target, category and session_id
// but plugins are not present in the tool table, only globally and inside the course_settings table once configured
$sql = "SELECT * FROM $course_tool_table WHERE category = 'plugin' AND c_id = $course_id $condition_session ORDER BY id";
$result = Database::query($sql);
break;
}
//Get the list of hidden tools - this might imply performance slowdowns
// if the course homepage is loaded many times, so the list of hidden
// tools might benefit from a shared memory storage later on
$list = api_get_settings('Tools', 'list', api_get_current_access_url_id());
$hide_list = array();
$check = false;
foreach ($list as $line) {
// Admin can see all tools even if the course_hide_tools configuration is set
if ($is_platform_admin) {
continue;
}
if ($line['variable'] == 'course_hide_tools' and $line['selected_value'] == 'true') {
$hide_list[] = $line['subkey'];
$check = true;
}
}
while ($temp_row = Database::fetch_assoc($result)) {
$add = false;
if ($check) {
if (!in_array($temp_row['name'], $hide_list)) {
$add = true;
}
} else {
$add = true;
}
if ($temp_row['image'] == 'scormbuilder.gif') {
$lp_id = self::get_published_lp_id_from_link($temp_row['link']);
$lp = new learnpath(api_get_course_id(), $lp_id, api_get_user_id());
$path = $lp->get_preview_image_path(64);
$add = $lp->is_lp_visible_for_student(
$lp_id,
api_get_user_id(),
api_get_course_id(),
api_get_session_id()
);
if ($path) {
$temp_row['custom_image'] = $path;
}
}
if ($add) {
$all_tools_list[] = $temp_row;
}
}
// Grabbing all the links that have the property on_homepage set to 1
$course_link_table = Database::get_course_table(TABLE_LINK);
$course_item_property_table = Database::get_course_table(TABLE_ITEM_PROPERTY);
switch ($course_tool_category) {
case TOOL_AUTHORING:
$sql_links = "SELECT tl.*, tip.visibility
FROM $course_link_table tl
LEFT JOIN $course_item_property_table tip ON tip.tool='link' AND tip.ref=tl.id
WHERE tl.c_id = $course_id AND
tip.c_id = $course_id AND
tl.on_homepage='1' $condition_session";
break;
case TOOL_INTERACTION:
$sql_links = null;
/*
$sql_links = "SELECT tl.*, tip.visibility
FROM $course_link_table tl
LEFT JOIN $course_item_property_table tip ON tip.tool='link' AND tip.ref=tl.id
WHERE tl.on_homepage='1' ";
*/
break;
case TOOL_STUDENT_VIEW:
$sql_links = "SELECT tl.*, tip.visibility
FROM $course_link_table tl
LEFT JOIN $course_item_property_table tip ON tip.tool='link' AND tip.ref=tl.id
WHERE tl.c_id = $course_id AND
tip.c_id = $course_id AND
tl.on_homepage ='1' $condition_session";
break;
case TOOL_ADMIN:
$sql_links = "SELECT tl.*, tip.visibility
FROM $course_link_table tl
LEFT JOIN $course_item_property_table tip ON tip.tool='link' AND tip.ref=tl.id
WHERE tl.c_id = $course_id AND
tip.c_id = $course_id AND
tl.on_homepage='1' $condition_session";
break;
default:
$sql_links = null;
break;
}
// Edited by Kevin Van Den Haute (kevin@develop-it.be) for integrating Smartblogs
if ($sql_links != null) {
$result_links = Database::query($sql_links);
if (Database::num_rows($result_links) > 0) {
while ($links_row = Database::fetch_array($result_links, 'ASSOC')) {
$properties = array();
$properties['name'] = $links_row['title'];
$properties['session_id'] = $links_row['session_id'];
$properties['link'] = $links_row['url'];
$properties['visibility'] = $links_row['visibility'];
$properties['image'] = ($links_row['visibility'] == '0') ? 'file_html.gif' : 'file_html.gif';
$properties['adminlink'] = api_get_path(WEB_CODE_PATH).'link/link.php?action=editlink&id='.$links_row['id'];
$properties['target'] = $links_row['target'];
$tmp_all_tools_list[] = $properties;
}
}
}
if (isset($tmp_all_tools_list)) {
foreach ($tmp_all_tools_list as $tool) {
if ($tool['image'] == 'blog.gif') {
// Init
$tbl_blogs_rel_user = Database::get_course_table(TABLE_BLOGS_REL_USER);
// Get blog id
$blog_id = substr($tool['link'], strrpos($tool['link'], '=') + 1, strlen($tool['link']));
// Get blog members
if ($is_platform_admin) {
$sql_blogs = "SELECT * FROM $tbl_blogs_rel_user blogs_rel_user WHERE blog_id =".$blog_id;
} else {
$sql_blogs = "SELECT * FROM $tbl_blogs_rel_user blogs_rel_user WHERE blog_id =".$blog_id." AND user_id = ".api_get_user_id();
}
$result_blogs = Database::query($sql_blogs);
if (Database::num_rows($result_blogs) > 0) {
$all_tools_list[] = $tool;
}
} else {
$all_tools_list[] = $tool;
}
}
}
return $all_tools_list;
}
/**
* Displays the tools of a certain category.
* @param array List of tools as returned by get_tools_category()
* @param int rows
* @return void
*/
public static function show_tools_category($all_tools_list, $rows = false) {
global $_user;
$theme = api_get_setting('homepage_view');
if ($theme == 'vertical_activity') {
//ordering by get_lang name
$order_tool_list = array();
if (is_array($all_tools_list) && count($all_tools_list) > 0) {
foreach ($all_tools_list as $key => $new_tool) {
$tool_name = self::translate_tool_name($new_tool);
$order_tool_list [$key] = $tool_name;
}
natsort($order_tool_list);
$my_temp_tool_array = array();
foreach ($order_tool_list as $key => $new_tool) {
$my_temp_tool_array[] = $all_tools_list[$key];
}
$all_tools_list = $my_temp_tool_array;
} else {
$all_tools_list = array();
}
}
$web_code_path = api_get_path(WEB_CODE_PATH);
$session_id = api_get_session_id();
$is_platform_admin = api_is_platform_admin();
if ($session_id == 0 ) {
$is_allowed_to_edit = api_is_allowed_to_edit(null, true) && api_is_course_admin();
} else {
$is_allowed_to_edit = api_is_allowed_to_edit(null, true) && !api_is_coach();
}
$i = 0;
$items = array();
$app_plugin = new AppPlugin();
if (isset($all_tools_list)) {
$lnk = '';
foreach ($all_tools_list as & $tool) {
$item = array();
$studentview = false;
$tool['original_link'] = $tool['link'];
if ($tool['image'] == 'scormbuilder.gif') {
// check if the published learnpath is visible for student
$published_lp_id = self::get_published_lp_id_from_link($tool['link']);
if (api_is_allowed_to_edit(null, true)) {
$studentview = true;
}
if (!api_is_allowed_to_edit(null, true) &&
!learnpath::is_lp_visible_for_student($published_lp_id, api_get_user_id(), api_get_course_id(), api_get_session_id())) {
continue;
}
}
if ($session_id != 0 && in_array($tool['name'], array('course_maintenance', 'course_setting'))) {
continue;
}
// This part displays the links to hide or remove a tool.
// These links are only visible by the course manager.
unset($lnk);
$item['extra'] = null;
if ($is_allowed_to_edit) {
if (empty($session_id)) {
if ($tool['visibility'] == '1' && $tool['admin'] != '1') {
$link['name'] = Display::return_icon('visible.png', get_lang('Deactivate'), array('id' => 'linktool_'.$tool['id']), ICON_SIZE_SMALL, false);
$link['cmd'] = 'hide=yes';
$lnk[] = $link;
}
if ($tool['visibility'] == '0' && $tool['admin'] != '1') {
$link['name'] = Display::return_icon('invisible.png', get_lang('Activate'), array('id' => 'linktool_'.$tool['id']), ICON_SIZE_SMALL, false);
$link['cmd'] = 'restore=yes';
$lnk[] = $link;
}
}
if (!empty($tool['adminlink'])) {
$item['extra'] = '<a href="'.$tool['adminlink'].'">'.Display::return_icon('edit.gif', get_lang('Edit')).'</a>';
}
}
// Both checks are necessary as is_platform_admin doesn't take student view into account
if ($is_platform_admin && $is_allowed_to_edit) {
if ($tool['admin'] != '1') {
$link['cmd'] = 'hide=yes';
}
}
$item['visibility'] = null;
if (isset($lnk) && is_array($lnk)) {
foreach ($lnk as $this_link) {
if (empty($tool['adminlink'])) {
$item['visibility'] .= '<a class="make_visible_and_invisible" href="'.api_get_self().'?'.api_get_cidreq().'&amp;id='.$tool['id'].'&amp;'.$this_link['cmd'].'">'.$this_link['name'].'</a>';
}
}
} else {
$item['visibility'] .= '';
}
// NOTE : Table contains only the image file name, not full path
if (stripos($tool['link'], 'http://') === false && stripos($tool['link'], 'https://') === false && stripos($tool['link'], 'ftp://') === false) {
$tool['link'] = $web_code_path.$tool['link'];
}
if ($tool['visibility'] == '0' && $tool['admin'] != '1') {
$class = 'invisible';
$info = pathinfo($tool['image']);
$basename = basename($tool['image'], '.'.$info['extension']); // $file is set to "index"
$tool['image'] = $basename.'_na.'.$info['extension'];
} else {
$class = '';
}
$qm_or_amp = strpos($tool['link'], '?') === false ? '?' : '&';
// If it's a link, we don't add the cidReq
if ($tool['image'] == 'file_html.gif' || $tool['image'] == 'file_html_na.gif') {
$tool['link'] = $tool['link'].$qm_or_amp;
} else {
$tool['link'] = $tool['link'].$qm_or_amp.api_get_cidreq();
}
$tool_link_params = array();
//$tool['link'] = htmlspecialchars($tool['link']) ;
//@todo this visio stuff should be removed
if (strpos($tool['name'], 'visio_') !== false) {
$tool_link_params = array('id' => 'tooldesc_'.$tool["id"],
'href' => '"javascript: void(0);"',
'class' => $class,
'onclick' => 'javascript: window.open(\''.$tool['link'].'\',\'window_visio'.$_SESSION['_cid'].'\',config=\'height=\'+730+\', width=\'+1020+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')',
'target' => $tool['target']);
} elseif (strpos($tool['name'], 'chat') !== false && api_get_course_setting('allow_open_chat_window')) {
$tool_link_params = array('id' => 'tooldesc_'.$tool["id"],
'class' => $class,
'href' => 'javascript: void(0);',
'onclick' => 'javascript: window.open(\''.$tool['link'].'\',\'window_chat'.$_SESSION['_cid'].'\',config=\'height=\'+600+\', width=\'+825+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')', //Chat Open Windows
'target' => $tool['target']);
} else {
if (count(explode('type=classroom', $tool['link'])) == 2 || count(explode('type=conference', $tool['link'])) == 2) {
$tool_link_params = array('id' => 'tooldesc_'.$tool["id"],
'href' => $tool['link'],
'class' => $class,
'target' => '_blank');
} else {
$tool_link_params = array('id' => 'tooldesc_'.$tool["id"],
'href' => $tool['link'],
'class' => $class,
'target' => $tool['target']);
}
}
$tool_name = self::translate_tool_name($tool);
// Including Courses Plugins
// Creating title and the link
if (isset($tool['category']) && $tool['category'] == 'plugin') {
$plugin_info = $app_plugin->get_plugin_info($tool['name']);
if (isset($plugin_info) && isset($plugin_info['title'])) {
$tool_name = $plugin_info['title'];
}
$tool_link_params['href'] = api_get_path(WEB_PLUGIN_PATH).$tool['original_link'].'?'.api_get_cidreq();
}
$icon = Display::return_icon($tool['image'], $tool_name, array('class' => 'tool-icon', 'id' => 'toolimage_'.$tool['id']), ICON_SIZE_BIG, false);
// Validation when belongs to a session
$session_img = api_get_session_image($tool['session_id'], (!empty($_user['status']) ? $_user['status'] : ''));
if ($studentview) {
$tool_link_params['href'] .= '&isStudentView=true';
}
$item['url_params'] = $tool_link_params;
$item['icon'] = Display::url($icon, $tool_link_params['href'], $tool_link_params);
$item['tool'] = $tool;
$item['name'] = $tool_name;
$tool_link_params['id'] = 'is'.$tool_link_params['id'];
$item['link'] = Display::url($tool_name.$session_img, $tool_link_params['href'], $tool_link_params);
$items[] = $item;
$i++;
} // end of foreach
}
$i = 0;
$html = '';
if (!empty($items)) {
foreach ($items as $item) {
switch ($theme) {
case 'activity_big':
$data = '';
$html .= '<div class="span4 course-tool">';
$image = (substr($item['tool']['image'], 0, strpos($item['tool']['image'], '.'))).'.png';
if (isset($item['tool']['custom_image'])) {
$original_image = Display::img(
$item['tool']['custom_image'],
$item['name'],
array('id' => 'toolimage_'.$item['tool']['id'])
);
} else {
$original_image = Display::return_icon(
$image,
$item['name'],
array('id' => 'toolimage_'.$item['tool']['id']),
ICON_SIZE_BIG,
false
);
}
$data .= Display::url($original_image, $item['url_params']['href'], $item['url_params']);
$html .= Display::div($data, array('class' => 'big_icon')); //box-image reflection
$html .= Display::div('<h4>'.$item['visibility'].$item['extra'].$item['link'].'</h4>', array('class' => 'content'));
$html .= '</div>';
break;
case 'activity':
$html .= '<div class="offset2 span4 course-tool">';
$html .= $item['extra'];
$html .= $item['visibility'];
$html .= $item['icon'];
$html .= $item['link'];
$html .= '</div>';
break;
case 'vertical_activity':
if ($i == 0) {
$html .= '<ul>';
}
$html .= '<li class="course-tool">';
$html .= $item['extra'];
$html .= $item['visibility'];
$html .= $item['icon'];
$html .= $item['link'];
$html .= '</li>';
if ($i == count($items) - 1) {
$html .= '</ul>';
}
break;
}
$i++;
}
}
return $html;
}
/**
* Shows the general data for a particular meeting
*
* @param id session id
* @return string session data
*/
public static function show_session_data($id_session) {
$session_table = Database::get_main_table(TABLE_MAIN_SESSION);
$user_table = Database::get_main_table(TABLE_MAIN_USER);
$session_category_table = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
if ($id_session != strval(intval($id_session))) {
return '';
} else {
$id_session = intval($id_session);
}
$sql = 'SELECT name, nbr_courses, nbr_users, nbr_classes, DATE_FORMAT(date_start,"%d-%m-%Y") as date_start, DATE_FORMAT(date_end,"%d-%m-%Y") as date_end, lastname, firstname, username, session_admin_id, nb_days_access_before_beginning, nb_days_access_after_end, session_category_id, visibility
FROM '.$session_table.'
LEFT JOIN '.$user_table.'
ON id_coach = user_id
WHERE '.$session_table.'.id='.$id_session;
$rs = Database::query($sql);
$session = Database::store_result($rs);
$session = $session[0];
$sql_category = 'SELECT name FROM '.$session_category_table.' WHERE id = "'.intval($session['session_category_id']).'"';
$rs_category = Database::query($sql_category);
$session_category = '';
if (Database::num_rows($rs_category) > 0) {
$rows_session_category = Database::store_result($rs_category);
$rows_session_category = $rows_session_category[0];
$session_category = $rows_session_category['name'];
}
if ($session['date_start'] == '00-00-0000') {
$msg_date = get_lang('NoTimeLimits');
} else {
$msg_date = get_lang('From').' '.$session['date_start'].' '.get_lang('To').' '.$session['date_end'];
}
$output = '';
if (!empty($session_category)) {
$output .= '<tr><td>'.get_lang('SessionCategory').': '.'<b>'.$session_category.'</b></td></tr>';
}
$output .= '<tr><td style="width:50%">'.get_lang('SessionName').': '.'<b>'.$session['name'].'</b></td><td>'.get_lang('GeneralCoach').': '.'<b>'.$session['lastname'].' '.$session['firstname'].' ('.$session['username'].')'.'</b></td></tr>';
$output .= '<tr><td>'.get_lang('SessionIdentifier').': '.Display::return_icon('star.png', ' ', array('align' => 'absmiddle')).'</td><td>'.get_lang('Date').': '.'<b>'.$msg_date.'</b></td></tr>';
return $output;
}
/**
* Retrieves the name-field within a tool-record and translates it on necessity.
* @param array $tool The input record.
* @return string Returns the name of the corresponding tool.
*/
public static function translate_tool_name(& $tool) {
static $already_translated_icons = array(
'file_html.gif',
'file_html_na.gif',
'scormbuilder.gif',
'scormbuilder_na.gif',
'blog.gif',
'blog_na.gif',
'external.gif',
'external_na.gif'
);
if (in_array($tool['image'], $already_translated_icons)) {
$tool_name = Security::remove_XSS(stripslashes($tool['name']));
} else {
/*
// The following (slow) code was made in the past for transitional purposes.
// We assume that the new language variables Tool* have been already translated.
$variable = 'Tool'.api_underscore_to_camel_case($tool['name']); // The newly opened language variables.
$variable_old = ucfirst($tool['name']); // The old language variables as a second chance.
if (api_is_translated($variable)) {
$tool_name = get_lang($variable);
} elseif (api_is_translated($variable_old)) {
$tool_name = get_lang($variable_old);
} else {
$tool_name = get_lang($variable);
}
*/
$tool_name = get_lang('Tool'.api_underscore_to_camel_case($tool['name']));
}
return $tool_name;
}
/**
* Get published learning path id from link inside course home
* @param string Link to published lp
* @return int Learning path id
*/
public static function get_published_lp_id_from_link($published_lp_link) {
$lp_id = 0;
$param_lp_id = strstr($published_lp_link, 'lp_id=');
if (!empty($param_lp_id)) {
$a_param_lp_id = explode('=', $param_lp_id);
if (isset($a_param_lp_id[1])) {
$lp_id = intval($a_param_lp_id[1]);
}
}
return $lp_id;
}
static function get_navigation_items($include_admin_tools = false) {
$navigation_items = array();
$course_id = api_get_course_int_id();
if (!empty($course_id)) {
$course_tools_table = Database :: get_course_table(TABLE_TOOL_LIST);
/* Link to the Course homepage */
$navigation_items['home']['image'] = 'home.gif';
$navigation_items['home']['link'] = api_get_path(REL_COURSE_PATH).Security::remove_XSS($_SESSION['_course']['path']).'/index.php';
$navigation_items['home']['name'] = get_lang('CourseHomepageLink');
$sql_menu_query = "SELECT * FROM $course_tools_table WHERE c_id = $course_id AND visibility='1' and admin='0' ORDER BY id ASC";
$sql_result = Database::query($sql_menu_query);
while ($row = Database::fetch_array($sql_result)) {
$navigation_items[$row['id']] = $row;
if (stripos($row['link'], 'http://') === false && stripos($row['link'], 'https://') === false) {
$navigation_items[$row['id']]['link'] = api_get_path(REL_CODE_PATH).$row['link'];
$navigation_items[$row['id']]['name'] = CourseHome::translate_tool_name($row);
}
}
/* Admin (edit rights) only links
- Course settings (course admin only)
- Course rights (roles & rights overview) */
if ($include_admin_tools) {
$course_settings_sql = "SELECT name,image FROM $course_tools_table
WHERE c_id = $course_id AND link='course_info/infocours.php'";
$sql_result = Database::query($course_settings_sql);
$course_setting_info = Database::fetch_array($sql_result);
$course_setting_visual_name = CourseHome::translate_tool_name($course_setting_info);
if (api_get_session_id() == 0) {
// course settings item
$navigation_items['course_settings']['image'] = $course_setting_info['image'];
$navigation_items['course_settings']['link'] = api_get_path(REL_CODE_PATH).'course_info/infocours.php';
$navigation_items['course_settings']['name'] = $course_setting_visual_name;
}
}
}
foreach ($navigation_items as $key => $navigation_item) {
if (strstr($navigation_item['link'], '?')) {
//link already contains a parameter, add course id parameter with &
$parameter_separator = '&amp;';
} else {
//link doesn't contain a parameter yet, add course id parameter with ?
$parameter_separator = '?';
}
//$navigation_items[$key]['link'] .= $parameter_separator.api_get_cidreq();
$navigation_items[$key]['link'] .= $parameter_separator.'cidReq='.api_get_course_id().'&gidReq=0&id_session='.api_get_session_id();
}
return $navigation_items;
}
/**
* Show a navigation menu
*/
static function show_navigation_menu() {
$navigation_items = self::get_navigation_items(true);
$course_id = api_get_course_id();
$html = '<div id="toolnav"> <!-- start of #toolnav -->';
if (api_get_setting('show_navigation_menu') == 'icons') {
$html .= self::show_navigation_tool_shortcuts($orientation = SHORTCUTS_VERTICAL);
} else {
$html .= '<div id="toolnavbox">';
$html .= '<div id="toolnavlist"><dl>';
foreach ($navigation_items as $key => $navigation_item) {
//students can't see the course settings option
if (!api_is_allowed_to_edit() && $key == 'course_settings') {
continue;
}
$html .= '<dd>';
$url_item = parse_url($navigation_item['link']);
$url_current = parse_url($_SERVER['REQUEST_URI']);
if (strpos($navigation_item['link'], 'chat') !== false && api_get_course_setting('allow_open_chat_window', $course_id)) {
$html .= '<a href="javascript: void(0);" onclick="javascript: window.open(\''.$navigation_item['link'].'\',\'window_chat'.$_SESSION['_cid'].'\',config=\'height=\'+600+\', width=\'+825+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="'.$navigation_item['target'].'"';
} else {
$html .= '<a href="'.$navigation_item['link'].'" target="_top" ';
}
if (stristr($url_item['path'], $url_current['path'])) {
if (!isset($_GET['learnpath_id']) || strpos($url_item['query'], 'learnpath_id='.$_GET['learnpath_id']) === 0) {
$html .= ' id="here"';
}
}
$html .= ' title="'.$navigation_item['name'].'">';
if (api_get_setting('show_navigation_menu') != 'text') {
$html .= '<div align="left"><img src="'.api_get_path(WEB_IMG_PATH).$navigation_item['image'].'" alt="'.$navigation_item['name'].'"/></div>';
}
if (api_get_setting('show_navigation_menu') != 'icons') {
$html .= $navigation_item['name'];
}
$html .= '</a>';
$html .= '</dd>';
}
$html .= '</dl></div></div>';
}
$html .= '</div><!-- end "#toolnav" -->';
return $html;
}
/**
* Show a toolbar with shortcuts to the course tool
*/
static function show_navigation_tool_shortcuts($orientation = SHORTCUTS_HORIZONTAL) {
$navigation_items = self::get_navigation_items(false);
$html = '';
if (!empty($navigation_items)) {
if ($orientation == SHORTCUTS_HORIZONTAL)
$style_id = "toolshortcuts_horizontal";
else {
$style_id = "toolshortcuts_vertical";
}
$html .= '<div id="'.$style_id.'">';
foreach ($navigation_items as $key => $navigation_item) {
if (strpos($navigation_item['link'], 'chat') !== false && api_get_course_setting('allow_open_chat_window')) {
$html .= '<a href="javascript: void(0);" onclick="javascript: window.open(\''.$navigation_item['link'].'\',\'window_chat'.$_SESSION['_cid'].'\',config=\'height=\'+600+\', width=\'+825+\', left=2, top=2, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no\')" target="'.$navigation_item['target'].'"';
} else {
$html .= '<a href="'.$navigation_item['link'].'"';
}
if (strpos(api_get_self(), $navigation_item['link']) !== false) {
$html .= ' id="here"';
}
$html .= ' target="_top" title="'.$navigation_item['name'].'">';
$html .= '<img src="'.api_get_path(WEB_IMG_PATH).$navigation_item['image'].'" alt="'.$navigation_item['name'].'"/>';
$html .= '</a> ';
if ($orientation == SHORTCUTS_VERTICAL) {
$html .= '<br />';
}
}
$html .= '</div>';
}
return $html;
}
}