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c2cb45451f
OK, some big changes here to the front end, particularly in course categories and course display. Course categories can now be nested (to any level). Courses and course categories can now be manually sorted any way required. There is a groovy front end for managing these, and a better range of options for formatting the front page. It all still needs some polishing, which I'll be doing over the next couple of days, including better auto-sorting. I would not use this on production systems just yet.
318 lines
10 KiB
PHP
318 lines
10 KiB
PHP
<?PHP // $Id$
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// Allows the admin to create, delete and rename course categories
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require_once("../config.php");
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require_once("lib.php");
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require_login();
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if (!isadmin()) {
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error("Only administrators can use this page!");
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}
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if (!$site = get_site()) {
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error("Site isn't defined!");
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}
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/// Print headings
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$stradministration = get_string("administration");
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$strcategories = get_string("categories");
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$strcategory = get_string("category");
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$strcourses = get_string("courses");
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$stredit = get_string("edit");
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$strdelete = get_string("delete");
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$straction = get_string("action");
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$straddnewcategory = get_string("addnewcategory");
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print_header("$site->shortname: $strcategories", "$site->fullname",
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"<A HREF=\"../$CFG->admin/index.php\">$stradministration</A> -> $strcategories",
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"addform.addcategory");
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/// If data for a new category was submitted, then add it
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if ($form = data_submitted()) {
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if (!empty($form->addcategory)) {
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unset($newcategory);
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$newcategory->name = $form->addcategory;
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$newcategory->sortorder = 999;
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if (!insert_record("course_categories", $newcategory)) {
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notify("Could not insert the new category '$newcategory->name'");
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} else {
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notify(get_string("categoryadded", "", $newcategory->name));
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}
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}
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}
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/// Delete a category if necessary
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if (isset($delete)) {
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if ($tempcat = get_record("course_categories", "id", $delete)) {
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if (delete_records("course_categories", "id", $tempcat->id)) {
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notify(get_string("categorydeleted", "", $tempcat->name));
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}
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if ($children = get_records("course_categories", "parent", $tempcat->id)) {
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foreach ($children as $childcat) {
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if (! set_field("course_categories", "parent", $tempcat->parent, "id", $childcat->id)) {
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notify("Could not update a child category!");
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}
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}
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}
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}
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}
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/// Create a default category if necessary
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if (!$categories = get_categories()) { /// No category yet!
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// Try and make one
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unset($tempcat);
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$tempcat->name = get_string("miscellaneous");
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if (!$tempcat->id = insert_record("course_categories", $tempcat)) {
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error("Serious error: Could not create a default category!");
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}
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}
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/// Move a category to a new parent if required
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if (isset($move) and isset($moveto)) {
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if ($tempcat = get_record("course_categories", "id", $move)) {
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if ($tempcat->parent != $moveto) {
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if (! set_field("course_categories", "parent", $moveto, "id", $tempcat->id)) {
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notify("Could not update that category!");
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}
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}
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}
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}
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/// Hide or show a category
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if (isset($hide) or isset($show)) {
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if (isset($hide)) {
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$tempcat = get_record("course_categories", "id", $hide);
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$visible = 0;
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} else {
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$tempcat = get_record("course_categories", "id", $show);
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$visible = 1;
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}
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if ($tempcat) {
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if (! set_field("course_categories", "visible", $visible, "id", $tempcat->id)) {
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notify("Could not update that category!");
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}
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if (! set_field("course", "visible", $visible, "category", $tempcat->id)) {
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notify("Could not hide/show any courses in this category !");
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}
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}
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}
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/// Move a category up or down
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if (isset($moveup) or isset($movedown)) {
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$swapcategory = NULL;
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$movecategory = NULL;
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if (isset($moveup)) {
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if ($movecategory = get_record("course_categories", "id", $moveup)) {
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$categories = get_categories("$movecategory->parent");
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foreach ($categories as $category) {
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if ($category->id == $movecategory->id) {
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break;
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}
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$swapcategory = $category;
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}
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}
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}
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if (isset($movedown)) {
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if ($movecategory = get_record("course_categories", "id", $movedown)) {
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$categories = get_categories("$movecategory->parent");
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$choosenext = false;
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foreach ($categories as $category) {
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if ($choosenext) {
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$swapcategory = $category;
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break;
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}
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if ($category->id == $movecategory->id) {
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$choosenext = true;
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}
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}
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}
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}
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if ($swapcategory and $movecategory) { // Renumber everything for robustness
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$count=0;
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foreach ($categories as $category) {
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$count++;
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if ($category->id == $swapcategory->id) {
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$category = $movecategory;
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} else if ($category->id == $movecategory->id) {
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$category = $swapcategory;
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}
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if (! set_field("course_categories", "sortorder", $count, "id", $category->id)) {
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notify("Could not update that category!");
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}
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}
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}
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}
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/// Find the default category (the one with the lowest ID)
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$categories = get_categories();
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$default = 99999;
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foreach ($categories as $category) {
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fix_category_courses($category->id);
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if ($category->id < $default) {
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$default = $category->id;
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}
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}
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/// Find any orphan courses that don't yet have a valid category and set to default
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if ($courses = get_courses()) {
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foreach ($courses as $course) {
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if (!isset( $categories[$course->category] )) {
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set_field("course", "category", $default, "id", $course->id);
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}
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}
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}
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/// Print form for creating new categories
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print_simple_box_start("center");
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echo "<center>";
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echo "<form name=\"addform\" action=\"categories.php\" method=\"post\">";
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echo "<input type=\"text\" size=55 name=\"addcategory\">";
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echo "<input type=\"submit\" value=\"$straddnewcategory\">";
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echo "</form>";
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echo "</center>";
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print_simple_box_end();
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echo "<br />";
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/// Print out the categories with all the knobs
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$strcategories = get_string("categories");
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$strmovecategoryto = get_string("movecategoryto");
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$stredit = get_string("edit");
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$displaylist = array();
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$parentlist = array();
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$displaylist[0] = get_string("top");
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make_categories_list($displaylist, $parentlist, "");
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echo "<table align=\"center\" border=0 cellspacing=2 cellpadding=5 class=\"generalbox\"><tr>";
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echo "<th>$strcategories</th>";
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echo "<th>$stredit</th>";
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echo "<th>$strmovecategoryto</th>";
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print_category_edit(NULL, $displaylist, $parentlist);
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echo "</table>";
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print_footer();
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function print_category_edit($category, $displaylist, $parentslist, $depth=-1, $up=false, $down=false) {
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/// Recursive function to print all the categories ready for editing
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global $THEME, $CFG;
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static $str = '';
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static $pixpath = '';
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if (empty($str)) {
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$str->delete = get_string("delete");
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$str->moveup = get_string("moveup");
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$str->movedown = get_string("movedown");
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$str->edit = get_string("editthiscategory");
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$str->hide = get_string("hide");
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$str->show = get_string("show");
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}
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if (empty($pixpath)) {
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if (empty($THEME->custompix)) {
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$pixpath = "$CFG->wwwroot/pix";
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} else {
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$pixpath = "$CFG->wwwroot/theme/$CFG->theme/pix";
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}
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}
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if ($category) {
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echo "<tr><td align=\"left\" nowrap=\"nowrap\" bgcolor=\"$THEME->cellcontent\">";
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echo "<p>";
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for ($i=0; $i<$depth;$i++) {
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echo " ";
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}
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$linkcss = $category->visible ? "" : " class=\"dimmed\" ";
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echo "<a $linkcss title=\"$str->edit\" href=\"category.php?id=$category->id\">$category->name</a>";
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echo "</p>";
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echo "</td>";
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echo "<td nowrap=\"nowrap\">"; /// Print little icons
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if (!empty($category->visible)) {
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echo "<a title=\"$str->hide\" href=\"categories.php?hide=$category->id\"><img".
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" src=\"$pixpath/t/hide.gif\" height=11 width=11 border=0></a> ";
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} else {
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echo "<a title=\"$str->show\" href=\"categories.php?show=$category->id\"><img".
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" src=\"$pixpath/t/show.gif\" height=11 width=11 border=0></a> ";
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}
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echo "<a title=\"$str->delete\" href=\"categories.php?delete=$category->id\"><img".
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" src=\"$pixpath/t/delete.gif\" height=11 width=11 border=0></a> ";
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//echo "<a title=\"$str->update\" href=\"category.php?id=$category->id\"><img".
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// " src=\"$pixpath/t/edit.gif\" height=11 width=11 border=0></a> ";
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if ($up) {
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echo "<a title=\"$str->moveup\" href=\"categories.php?moveup=$category->id\"><img".
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" src=\"$pixpath/t/up.gif\" height=11 width=11 border=0></a> ";
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}
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if ($down) {
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echo "<a title=\"$str->movedown\" href=\"categories.php?movedown=$category->id\"><img".
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" src=\"$pixpath/t/down.gif\" height=11 width=11 border=0></a> ";
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}
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echo "</td>";
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echo "<td align=\"left\" width=\"0\">";
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$tempdisplaylist = $displaylist;
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unset($tempdisplaylist[$category->id]);
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foreach ($parentslist as $key => $parents) {
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if (in_array($category->id, $parents)) {
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unset($tempdisplaylist[$key]);
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}
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}
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popup_form ("categories.php?move=$category->id&moveto=", $tempdisplaylist, "moveform$category->id", "$category->parent", "", "", "", false);
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echo "</td>";
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echo "</tr>";
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} else {
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$category->id = "0";
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}
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if ($categories = get_categories($category->id)) { // Print all the children recursively
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$countcats = count($categories);
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$count = 0;
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$first = true;
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$last = false;
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foreach ($categories as $cat) {
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$count++;
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if ($count == $countcats) {
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$last = true;
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}
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$up = $first ? false : true;
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$down = $last ? false : true;
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$first = false;
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print_category_edit($cat, $displaylist, $parentslist, $depth+1, $up, $down);
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}
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}
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}
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?>
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