moodle/course/category.php
moodler bbbf2d4015 ROLES AND PERMISSIONS - FIRST CHECK-IN
=======================================

WARNING:  DEV IS CURRENTLY VERY UNSTABLE.

This is a mega-checkin of the new Roles system.   A lot of changes have
been made in core and modules.

Currently there are a lot of rough edges and known problems.  We are
working hard on these .. .the reason for getting this into HEAD at this
stage is enable us to move faster (our branch was diverging from HEAD
too much).

Please keep an eye on http://docs.moodle.org/en/Roles for current status
and information for developers on how to use the new Roles system.
2006-08-08 05:13:06 +00:00

448 lines
19 KiB
PHP

<?php // $Id$
// Displays the top level category or all courses
// In editing mode, allows the admin to edit a category,
// and rearrange courses
require_once("../config.php");
require_once("lib.php");
$id = required_param('id', PARAM_INT); // Category id
$page = optional_param('page', 0, PARAM_INT); // which page to show
$perpage = optional_param('perpage', 20, PARAM_INT); // how many per page
$edit = optional_param('edit', -1, PARAM_BOOL);
$hide = optional_param('hide', 0, PARAM_INT);
$show = optional_param('show', 0, PARAM_INT);
$moveup = optional_param('moveup', 0, PARAM_INT);
$movedown = optional_param('movedown', 0, PARAM_INT);
$moveto = optional_param('moveto', 0, PARAM_INT);
$rename = optional_param('rename', '', PARAM_NOTAGS);
$resort = optional_param('resort', 0, PARAM_BOOL);
if (!$site = get_site()) {
error("Site isn't defined!");
}
if ($CFG->forcelogin) {
require_login();
}
if (!$category = get_record("course_categories", "id", $id)) {
error("Category not known!");
}
if (iscreator()) {
if ($edit !== -1) {
$USER->categoryediting = $edit;
}
$navbaritem = update_category_button($category->id);
$creatorediting = !empty($USER->categoryediting);
$adminediting = (isadmin() and $creatorediting);
} else {
if (!$category->visible) {
error(get_string('notavailable', 'error'));
}
$navbaritem = print_course_search("", true, "navbar");
$adminediting = false;
$creatorediting = false;
}
if (isadmin()) {
/// Rename the category if requested
if (!empty($rename) and confirm_sesskey()) {
$category->name = $rename;
if (! set_field("course_categories", "name", $category->name, "id", $category->id)) {
notify("An error occurred while renaming the category");
}
}
/// Resort the category if requested
if ($resort and confirm_sesskey()) {
if ($courses = get_courses($category->id, "fullname ASC", 'c.id,c.fullname,c.sortorder')) {
// move it off the range
$count = get_record_sql('SELECT MAX(sortorder) AS max, 1
FROM ' . $CFG->prefix . 'course WHERE category=' . $category->id);
$count = $count->max + 100;
begin_sql();
foreach ($courses as $course) {
set_field('course', 'sortorder', $count, 'id', $course->id);
$count++;
}
commit_sql();
fix_course_sortorder($category->id);
}
}
}
/// Print headings
$numcategories = count_records("course_categories");
$stradministration = get_string("administration");
$strcategories = get_string("categories");
$strcategory = get_string("category");
$strcourses = get_string("courses");
if ($creatorediting) {
if ($adminediting) {
print_header("$site->shortname: $category->name", "$site->fullname: $strcourses",
"<a href=\"../$CFG->admin/index.php\">$stradministration</a> -> ".
"<a href=\"index.php\">$strcategories</a> -> $category->name",
"", "", true, $navbaritem);
} else {
print_header("$site->shortname: $category->name", "$site->fullname: $strcourses",
"<a href=\"index.php\">$strcategories</a> -> $category->name", "", "", true, $navbaritem);
}
} else {
print_header("$site->shortname: $category->name", "$site->fullname: $strcourses",
"<a href=\"index.php\">$strcategories</a> -> $category->name", "", "", true, $navbaritem);
}
/// Print the category selector
$displaylist = array();
$parentlist = array();
make_categories_list($displaylist, $parentlist, "");
echo '<table align="center"><tr><td align="right">';
echo "<p>$strcategories:</p>";
echo "</td><td>";
popup_form("category.php?id=", $displaylist, "switchcategory", "$category->id", "", "", "", false);
echo "</td></tr></table><br />";
/// Editing functions
if ($adminediting) {
/// Move a specified course to a new category
if (!empty($moveto) and $data = data_submitted() and confirm_sesskey()) { // Some courses are being moved
if (! $destcategory = get_record("course_categories", "id", $data->moveto)) {
error("Error finding the category");
}
$courses = array();
foreach ( $data as $key => $value ) {
if (preg_match('/^c\d+$/', $key)) {
array_push($courses, substr($key, 1));
}
}
move_courses($courses, $data->moveto);
}
/// Hide or show a course
if ((!empty($hide) or !empty($show)) and confirm_sesskey()) {
if (!empty($hide)) {
$course = get_record("course", "id", $hide);
$visible = 0;
} else {
$course = get_record("course", "id", $show);
$visible = 1;
}
if ($course) {
if (! set_field("course", "visible", $visible, "id", $course->id)) {
notify("Could not update that course!");
}
}
}
/// Move a course up or down
if ((!empty($moveup) or !empty($movedown)) and confirm_sesskey()) {
$movecourse = NULL;
$swapcourse = NULL;
// ensure the course order has no gaps
// and isn't at 0
fix_course_sortorder($category->id);
// we are going to need to know the range
$max = get_record_sql('SELECT MAX(sortorder) AS max, 1
FROM ' . $CFG->prefix . 'course WHERE category=' . $category->id);
$max = $max->max + 100;
if (!empty($moveup)) {
$movecourse = get_record('course', 'id', $moveup);
$swapcourse = get_record('course',
'category', $category->id,
'sortorder', $movecourse->sortorder - 1);
} else {
$movecourse = get_record('course', 'id', $movedown);
$swapcourse = get_record('course',
'category', $category->id,
'sortorder', $movecourse->sortorder + 1);
}
if ($swapcourse and $movecourse) { // Renumber everything for robustness
begin_sql();
if (!( set_field("course", "sortorder", $max, "id", $swapcourse->id)
&& set_field("course", "sortorder", $swapcourse->sortorder, "id", $movecourse->id)
&& set_field("course", "sortorder", $movecourse->sortorder, "id", $swapcourse->id)
)) {
notify("Could not update that course!");
}
commit_sql();
}
}
} // End of editing stuff
/// Print out all the sub-categories
if ($subcategories = get_records("course_categories", "parent", $category->id, "sortorder ASC")) {
$firstentry = true;
foreach ($subcategories as $subcategory) {
if ($subcategory->visible or iscreator()) {
$subcategorieswereshown = true;
if ($firstentry) {
echo '<table align="center" border="0" cellspacing="2" cellpadding="4" class="generalbox">';
echo '<tr><th>'.get_string('subcategories').'</th></tr>';
echo '<tr><td nowrap="nowrap">';
$firstentry = false;
}
$catlinkcss = $subcategory->visible ? "" : " class=\"dimmed\" ";
echo '<a '.$catlinkcss.' href="category.php?id='.$subcategory->id.'">'.
$subcategory->name.'</a><br />';
}
}
if (!$firstentry) {
echo "</td></tr></table>";
echo "<br />";
}
}
/// Print out all the courses
unset($course); // To avoid unwanted language effects later
$courses = get_courses_page($category->id, 'c.sortorder ASC',
'c.id,c.sortorder,c.shortname,c.fullname,c.summary,c.visible,c.teacher,c.guest,c.password',
$totalcount, $page*$perpage, $perpage);
$numcourses = count($courses);
if (!$courses) {
if (empty($subcategorieswereshown)) {
print_heading(get_string("nocoursesyet"));
}
} else if ($numcourses <= COURSE_MAX_SUMMARIES_PER_PAGE and !$page and !$creatorediting) {
print_courses($category, "80%");
} else {
print_paging_bar($totalcount, $page, $perpage, "category.php?id=$category->id&amp;perpage=$perpage&");
$strcourses = get_string("courses");
$strselect = get_string("select");
$stredit = get_string("edit");
$strdelete = get_string("delete");
$strbackup = get_string("backup");
$strrestore = get_string("restore");
$strmoveup = get_string("moveup");
$strmovedown = get_string("movedown");
$strupdate = get_string("update");
$strhide = get_string("hide");
$strshow = get_string("show");
$strsummary = get_string("summary");
$strsettings = get_string("settings");
$strassignteachers = get_string("assignteachers");
$strallowguests = get_string("allowguests");
$strrequireskey = get_string("requireskey");
echo '<form name="movecourses" action="category.php" method="post">';
echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
echo '<table align="center" border="0" cellspacing="2" cellpadding="4" class="generalbox"><tr>';
echo '<th>'.$strcourses.'</th>';
if ($creatorediting) {
echo '<th>'.$stredit.'</th>';
if ($adminediting) {
echo '<th>'.$strselect.'</th>';
}
} else {
echo '<th>&nbsp;</th>';
}
echo '</tr>';
$count = 0;
$abletomovecourses = false; // for now
// Checking if we are at the first or at the last page, to allow courses to
// be moved up and down beyond the paging border
if ($totalcount > $perpage) {
$atfirstpage = ($page == 0);
$atlastpage = (($page + 1) == ceil($totalcount / $perpage));
} else {
$atfirstpage = true;
$atlastpage = true;
}
foreach ($courses as $acourse) {
$context = get_context_instance(CONTEXT_COURSE, $acourse->id);
$count++;
$up = ($count > 1 || !$atfirstpage);
$down = ($count < $numcourses || !$atlastpage);
$linkcss = $acourse->visible ? "" : ' class="dimmed" ';
echo '<tr>';
echo '<td><a '.$linkcss.' href="view.php?id='.$acourse->id.'">'.$acourse->fullname.'</a></td>';
if ($creatorediting) {
if ($adminediting) {
echo "<td>";
echo '<a title="'.$strsettings.'" href="'.$CFG->wwwroot.'/course/edit.php?id='.
$acourse->id.'">'.
'<img src="'.$CFG->pixpath.'/t/edit.gif" height="11" width="11" border="0" alt="'.$stredit.'" /></a> ';
echo '<a title="'.$strassignteachers.'" href="'.$CFG->wwwroot.'/course/teacher.php?id='.
$acourse->id.'">'.
'<img src="'.$CFG->pixpath.'/t/user.gif" height="11" width="11" border="0" alt="'.$strassignteachers.'" /></a> ';
if (has_capability('moodle/course:delete', $context->id)) {
echo '<a title="'.$strdelete.'" href="delete.php?id='.$acourse->id.'">'.
'<img src="'.$CFG->pixpath.'/t/delete.gif" height="11" width="11" border="0" alt="'.$strdelete.'" /></a> ';
}
if (has_capability('moodle/course:visibility', $context->id)) {
if (!empty($acourse->visible)) {
echo '<a title="'.$strhide.'" href="category.php?id='.$category->id.'&amp;page='.$page.
'&amp;perpage='.$perpage.'&amp;hide='.$acourse->id.'&amp;sesskey='.$USER->sesskey.'">'.
'<img src="'.$CFG->pixpath.'/t/hide.gif" height="11" width="11" border="0" alt="'.$strhide.'" /></a> ';
} else {
echo '<a title="'.$strshow.'" href="category.php?id='.$category->id.'&amp;page='.$page.
'&amp;perpage='.$perpage.'&amp;show='.$acourse->id.'&amp;sesskey='.$USER->sesskey.'">'.
'<img src="'.$CFG->pixpath.'/t/show.gif" height="11" width="11" border="0" alt="'.$strshow.'" /></a> ';
}
}
if (has_capability('moodle/site:backup', $context->id)) {
echo '<a title="'.$strbackup.'" href="../backup/backup.php?id='.$acourse->id.'">'.
'<img src="'.$CFG->pixpath.'/t/backup.gif" height="11" width="11" border="0" alt="" /></a> ';
}
if (has_capability('moodle/site:restore', $context->id)) {
echo '<a title="'.$strrestore.'" href="../files/index.php?id='.$acourse->id.
'&amp;wdir=/backupdata">'.
'<img src="'.$CFG->pixpath.'/t/restore.gif" height="11" width="11" border="0" alt="" /></a> ';
}
echo '<a title="'.$strbackup.'" href="../backup/backup.php?id='.$acourse->id.'">'.
'<img src="'.$CFG->pixpath.'/t/backup.gif" height="11" width="11" border="0" alt="'.$strbackup.'" /></a> ';
echo '<a title="'.$strrestore.'" href="../files/index.php?id='.$acourse->id.
'&amp;wdir=/backupdata">'.
'<img src="'.$CFG->pixpath.'/t/restore.gif" height="11" width="11" border="0" alt="'.$strrestore.'" /></a> ';
if ($up) {
echo '<a title="'.$strmoveup.'" href="category.php?id='.$category->id.'&amp;page='.$page.
'&amp;perpage='.$perpage.'&amp;moveup='.$acourse->id.'&amp;sesskey='.$USER->sesskey.'">'.
'<img src="'.$CFG->pixpath.'/t/up.gif" height="11" width="11" border="0" alt="'.$strmoveup.'" /></a> ';
} else {
echo '<img src="'.$CFG->wwwroot.'/pix/spacer.gif" height="11" width="11" border="0" alt="" /> ';
}
if ($down) {
echo '<a title="'.$strmovedown.'" href="category.php?id='.$category->id.'&amp;page='.$page.
'&amp;perpage='.$perpage.'&amp;movedown='.$acourse->id.'&amp;sesskey='.$USER->sesskey.'">'.
'<img src="'.$CFG->pixpath.'/t/down.gif" height="11" width="11" border="0" alt="'.$strmovedown.'" /></a> ';
} else {
echo '<img src="'.$CFG->wwwroot.'/pix/spacer.gif" height="11" width="11" border="0" alt="" /> ';
}
echo '</td>';
echo '<td align="center">';
echo '<input type="checkbox" name="c'.$acourse->id.'" />';
$abletomovecourses = true;
} else if (isteacheredit($acourse->id)) {
echo '<td>';
echo '<a title="'.$strsettings.'" href="'.$CFG->wwwroot.'/course/edit.php?id='.$acourse->id.'">'.
'<img src="'.$CFG->pixpath.'/t/edit.gif" height="11" width="11" border="0" alt="'.$strsettings.'" /></a> ';
echo '<a title="'.$strassignteachers.'" href="'.$CFG->wwwroot.'/course/teacher.php?id='.$acourse->id.'">'.
'<img src="'.$CFG->pixpath.'/t/user.gif" height="11" width="11" border="0" alt="'.$strassignteachers.'" /></a> ';
}
echo '</td>';
} else {
echo '<td align="right">';
if (!empty($acourse->guest)) {
echo '<a href="view.php?id='.$acourse->id.'"><img hspace="2" title="'.
$strallowguests.'" alt="" height="16" width="16" border="0" src="'.
$CFG->pixpath.'/i/user.gif" /></a>';
}
if (!empty($acourse->password)) {
echo '<a href="view.php?id='.$acourse->id.'"><img hspace="2" title="'.
$strrequireskey.'" alt="" height="16" width="16" border="0" src="'.
$CFG->pixpath.'/i/key.gif" /></a>';
}
if (!empty($acourse->summary)) {
link_to_popup_window ("/course/info.php?id=$acourse->id", "courseinfo",
'<img hspace="2" alt="info" height="16" width="16" border="0" src="'.$CFG->pixpath.'/i/info.gif" />',
400, 500, $strsummary);
}
echo "</td>";
}
echo "</tr>";
}
if ($abletomovecourses) {
echo '<tr><td colspan="3" align="right">';
echo '<br />';
unset($displaylist[$category->id]);
choose_from_menu ($displaylist, "moveto", "", get_string("moveselectedcoursesto"), "javascript:document.movecourses.submit()");
echo '<input type="hidden" name="id" value="'.$category->id.'" />';
echo '</td></tr>';
}
echo '</table>';
echo '</form>';
echo '<br />';
}
echo '<center>';
if (isadmin() and $numcourses > 1) { /// Print button to re-sort courses by name
unset($options);
$options['id'] = $category->id;
$options['resort'] = 'name';
$options['sesskey'] = $USER->sesskey;
print_single_button('category.php', $options, get_string('resortcoursesbyname'), 'get');
}
$context = get_context_instance(CONTEXT_SYSTEM, SITEID);
if (has_capability('moodle/course:create', $context->id)) { /// Print button to create a new course
unset($options);
$options['category'] = $category->id;
print_single_button('edit.php', $options, get_string('addnewcourse'), 'get');
echo '<br />';
}
$context = get_context_instance(CONTEXT_COURSECAT, $id);
if (has_capability('moodle/category:update', $context->id)) { /// Print form to rename the category
$strrename= get_string('rename');
echo '<form name="renameform" action="category.php" method="post">';
echo '<input type="hidden" name="id" value="'.$category->id.'" />';
echo '<input type="hidden" name="sesskey" value="'.$USER->sesskey.'" />';
echo '<input type="text" size="30" name="rename" value="'.s($category->name).'" alt="'.$strrename.'" />';
echo '<input type="submit" value="'.$strrename.'" />';
echo "</form>";
echo "<br />";
}
print_course_search();
echo "</center>";
print_footer();
?>