moodler
6656bf0af1
Fixed up styles handling to be more standard (the themes include them already so no need for modules to do it)
1326 lines
59 KiB
PHP
1326 lines
59 KiB
PHP
<?PHP // $Id: lesson.php, v 1.0 25 Jan 2004
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/*************************************************
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ACTIONS handled are:
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addbranchtable
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addendofbranch
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addpage
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confirmdelete
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continue
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delete
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editpage
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insertpage
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move
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moveit
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updatepage
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************************************************/
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require("../../config.php");
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require("lib.php");
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require_variable($id); // Course Module ID
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// get some esential stuff...
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if (! $cm = get_record("course_modules", "id", $id)) {
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error("Course Module ID was incorrect");
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}
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if (! $course = get_record("course", "id", $cm->course)) {
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error("Course is misconfigured");
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}
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if (! $lesson = get_record("lesson", "id", $cm->instance)) {
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error("Course module is incorrect");
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}
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require_login($course->id);
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// set up some general variables
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$usehtmleditor = can_use_html_editor();
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$navigation = "";
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if ($course->category) {
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$navigation = "<A HREF=\"../../course/view.php?id=$course->id\">$course->shortname</A> ->";
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}
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$strlessons = get_string("modulenameplural", "lesson");
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$strlesson = get_string("modulename", "lesson");
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$strlessonname = $lesson->name;
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// ... print the header and...
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print_header("$course->shortname: $lesson->name", "$course->fullname",
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"$navigation <A HREF=index.php?id=$course->id>$strlessons</A> ->
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<A HREF=\"view.php?id=$cm->id\">$lesson->name</A>",
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"", "", true);
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//...get the action
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require_variable($action);
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/************** add branch table ************************************/
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if ($action == 'addbranchtable' ) {
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if (!isteacher($course->id)) {
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error("Only teachers can look at this page");
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}
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// first get the preceeding page
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$pageid = $_GET['pageid'];
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// set of jump array
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$jump[0] = get_string("thispage", "lesson");
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$jump[LESSON_NEXTPAGE] = get_string("nextpage", "lesson");
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$jump[LESSON_EOL] = get_string("endoflesson", "lesson");
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if (!$apageid = get_field("lesson_pages", "id", "lessonid", $lesson->id, "prevpageid", 0)) {
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error("Add page: first page not found");
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}
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while (true) {
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if ($apageid) {
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$title = get_field("lesson_pages", "title", "id", $apageid);
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$jump[$apageid] = $title;
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$apageid = get_field("lesson_pages", "nextpageid", "id", $apageid);
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} else {
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// last page reached
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break;
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}
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}
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// give teacher a blank proforma
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print_heading_with_help(get_string("addabranchtable", "lesson"), "overview", "lesson");
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?>
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<form name="form" method="post" action="lesson.php">
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<input type="hidden" name="id" value="<?PHP echo $cm->id ?>">
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<input type="hidden" name="action" value="insertpage">
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<input type="hidden" name="pageid" value="<?PHP echo $_GET['pageid'] ?>">
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<input type="hidden" name="qtype" value="<?PHP echo LESSON_BRANCHTABLE ?>">
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<center><table cellpadding=5 border=1>
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<tr><td align="center">
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<tr valign="top">
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<td><b><?php print_string("pagetitle", "lesson"); ?>:</b><br />
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<input type="text" name="title" size="80" maxsize="255" value=""></td></tr>
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<?PHP
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echo "<tr><td><b>";
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echo get_string("pagecontents", "lesson").":</b><br />\n";
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print_textarea($usehtmleditor, 25,70, 630, 400, "contents");
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echo "</td></tr>\n";
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for ($i = 0; $i < $lesson->maxanswers; $i++) {
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$iplus1 = $i + 1;
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echo "<tr><td><b>".get_string("description", "lesson")." $iplus1:</b><br />\n";
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print_textarea($usehtmleditor, 20, 70, 630, 300, "answer[$i]");
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echo "</td></tr>\n";
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echo "<tr><td><B>".get_string("jump", "lesson")." $iplus1:</b> \n";
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if ($i) {
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// answers 2, 3, 4... jumpto this page
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lesson_choose_from_menu($jump, "jumpto[$i]", 0, "");
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} else {
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// answer 1 jumpto next page
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lesson_choose_from_menu($jump, "jumpto[$i]", LESSON_NEXTPAGE, "");
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}
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helpbutton("jumpto", get_string("jump", "lesson"), "lesson");
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echo "</td></tr>\n";
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}
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use_html_editor();
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// close table and form
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?>
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</table><br />
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<input type="submit" value="<?php print_string("addabranchtable", "lesson") ?>">
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<input type="submit" name="cancel" value="<?php print_string("cancel") ?>">
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</center>
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</form>
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<?PHP
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}
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/************** add end of branch ************************************/
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elseif ($action == 'addendofbranch' ) {
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if (!isteacher($course->id)) {
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error("Only teachers can look at this page");
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}
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// first get the preceeding page
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$pageid = $_GET['pageid'];
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$timenow = time();
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// the new page is not the first page (end of branch always comes after an existing page)
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if (!$page = get_record("lesson_pages", "id", $pageid)) {
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error("Add end of branch: page record not found");
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}
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// chain back up to find the (nearest branch table)
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$btpageid = $pageid;
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if (!$btpage = get_record("lesson_pages", "id", $btpageid)) {
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error("Add end of branch: btpage record not found");
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}
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while (($btpage->qtype != LESSON_BRANCHTABLE) AND ($btpage->prevpageid > 0)) {
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$btpageid = $btpage->prevpageid;
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if (!$btpage = get_record("lesson_pages", "id", $btpageid)) {
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error("Add end of branch: btpage record not found");
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}
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}
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if ($btpage->qtype == LESSON_BRANCHTABLE) {
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$newpage->lessonid = $lesson->id;
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$newpage->prevpageid = $pageid;
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$newpage->nextpageid = $page->nextpageid;
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$newpage->qtype = LESSON_ENDOFBRANCH;
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$newpage->timecreated = $timenow;
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$newpage->title = get_string("endofbranch", "lesson");
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$newpage->contents = get_string("endofbranch", "lesson");
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if (!$newpageid = insert_record("lesson_pages", $newpage)) {
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error("Insert page: new page not inserted");
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}
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// update the linked list...
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if (!set_field("lesson_pages", "nextpageid", $newpageid, "id", $pageid)) {
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error("Add end of branch: unable to update link");
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}
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if ($page->nextpageid) {
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// the new page is not the last page
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if (!set_field("lesson_pages", "prevpageid", $newpageid, "id", $page->nextpageid)) {
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error("Insert page: unable to update previous link");
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}
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}
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// ..and the single "answer"
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$newanswer->lessonid = $lesson->id;
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$newanswer->pageid = $newpageid;
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$newanswer->timecreated = $timenow;
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$newanswer->jumpto = $btpageid;
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if(!$newanswerid = insert_record("lesson_answers", $newanswer)) {
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error("Add end of branch: answer record not inserted");
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}
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redirect("view.php?id=$cm->id", get_string("ok"));
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} else {
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notice(get_string("nobranchtablefound", "lesson"), "view.php?id=$cm->id");
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}
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}
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/************** add page ************************************/
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elseif ($action == 'addpage' ) {
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if (!isteacher($course->id)) {
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error("Only teachers can look at this page");
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}
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// first get the preceeding page
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$pageid = $_GET['pageid'];
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// set of jump array
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$jump[0] = get_string("thispage", "lesson");
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$jump[LESSON_NEXTPAGE] = get_string("nextpage", "lesson");
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$jump[LESSON_EOL] = get_string("endoflesson", "lesson");
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if (!$apageid = get_field("lesson_pages", "id", "lessonid", $lesson->id, "prevpageid", 0)) {
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error("Add page: first page not found");
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}
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while (true) {
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if ($apageid) {
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$title = get_field("lesson_pages", "title", "id", $apageid);
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$jump[$apageid] = $title;
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$apageid = get_field("lesson_pages", "nextpageid", "id", $apageid);
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} else {
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// last page reached
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break;
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}
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}
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// give teacher a blank proforma
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print_heading_with_help(get_string("addaquestionpage", "lesson"), "overview", "lesson");
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?>
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<form name="form" method="post" action="lesson.php">
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<input type="hidden" name="id" value="<?PHP echo $cm->id ?>">
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<input type="hidden" name="action" value="insertpage">
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<input type="hidden" name="pageid" value="<?PHP echo $_GET['pageid'] ?>">
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<center><table cellpadding=5 border=1>
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<tr><td align="center">
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<tr valign="top">
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<td><b><?php print_string("pagetitle", "lesson"); ?>:</b><br />
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<input type="text" name="title" size="80" maxsize="255" value=""></td></tr>
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<?PHP
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echo "<tr><td><b>";
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echo get_string("pagecontents", "lesson").":</b><br />\n";
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print_textarea($usehtmleditor, 25,70, 630, 400, "contents");
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use_html_editor("contents");
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echo "</td></tr>\n";
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echo "<tr><td><b>".get_string("questiontype", "lesson").":</b> \n";
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choose_from_menu($LESSON_QUESTION_TYPE, "qtype", LESSON_MULTICHOICE, "");
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helpbutton("questiontype", get_string("questiontype", "lesson"), "lesson");
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echo "<br /><b>".get_string("questionoption", "lesson").":</b>\n";
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echo " <input type=\"checkbox\" name=\"qoption\" value=\"1\"/>";
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helpbutton("questionoption", get_string("questionoption", "lesson"), "lesson");
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echo "</td></tr>\n";
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for ($i = 0; $i < $lesson->maxanswers; $i++) {
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$iplus1 = $i + 1;
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echo "<tr><td><b>".get_string("answer", "lesson")." $iplus1:</b><br />\n";
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print_textarea(false, 6, 70, 630, 300, "answer[$i]");
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echo "</td></tr>\n";
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echo "<tr><td><b>".get_string("response", "lesson")." $iplus1:</b><br />\n";
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print_textarea(false, 6, 70, 630, 300, "response[$i]");
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echo "</td></tr>\n";
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echo "<tr><td><B>".get_string("jump", "lesson")." $iplus1:</b> \n";
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if ($i) {
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// answers 2, 3, 4... jumpto this page
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lesson_choose_from_menu($jump, "jumpto[$i]", 0, "");
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} else {
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// answer 1 jumpto next page
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lesson_choose_from_menu($jump, "jumpto[$i]", LESSON_NEXTPAGE, "");
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}
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helpbutton("jumpto", get_string("jump", "lesson"), "lesson");
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echo "</td></tr>\n";
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}
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// close table and form
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?>
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</table><br />
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<input type="submit" value="<?php print_string("addaquestionpage", "lesson") ?>">
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<input type="submit" name="cancel" value="<?php print_string("cancel") ?>">
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</center>
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</form>
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<?PHP
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}
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/******************* confirm delete ************************************/
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elseif ($action == 'confirmdelete' ) {
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if (!isteacher($course->id)) {
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error("Only teachers can look at this page");
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}
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if (empty($_GET['pageid'])) {
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error("Confirm delete: pageid missing");
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}
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$pageid = $_GET['pageid'];
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if (!$thispage = get_record("lesson_pages", "id", $pageid)) {
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error("Confirm delete: the page record not found");
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}
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print_heading(get_string("deletingpage", "lesson", $thispage->title));
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// print the jumps to this page
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if ($answers = get_records_select("lesson_answers", "lessonid = $lesson->id AND jumpto = $pageid + 1")) {
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print_heading(get_string("thefollowingpagesjumptothispage", "lesson"));
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echo "<p align=\"center\">\n";
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foreach ($answers as $answer) {
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if (!$title = get_field("lesson_pages", "title", "id", $answer->pageid)) {
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error("Confirm delete: page title not found");
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}
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echo $title."<br />\n";
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}
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}
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notice_yesno(get_string("confirmdeletionofthispage","lesson"),
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"lesson.php?action=delete&id=$cm->id&pageid=$pageid",
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"view.php?id=$cm->id");
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}
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/****************** continue ************************************/
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elseif ($action == 'continue' ) {
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// record answer (if necessary) and show response (if none say if answer is correct or not)
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if (empty($_POST['pageid'])) {
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error("Continue: pageid missing");
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}
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$pageid = $_POST['pageid'];
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if (!$page = get_record("lesson_pages", "id", $pageid)) {
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error("Continue: Page record not found");
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}
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// set up some defaults
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$answerid = 0;
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$noanswer = false;
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$correctanswer = false;
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$newpageid = 0; // stay on the page
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switch ($page->qtype) {
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case LESSON_SHORTANSWER :
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if (!$useranswer = $_POST['answer']) {
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$noanswer = true;
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break;
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}
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if (!$answers = get_records("lesson_answers", "pageid", $pageid, "id")) {
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error("Continue: No answers found");
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}
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foreach ($answers as $answer) {
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// massage the wild cards (if present)
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if (strpos(' '.$answer->answer, '*')) {
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$answer->answer = str_replace('\*','@@@@@@', $answer->answer);
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$answer->answer = str_replace('*','.*', $answer->answer);
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$answer->answer = str_replace('@@@@@@', '\*', $answer->answer);
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$answer->answer = str_replace('+', '\+', $answer->answer);
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}
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if (lesson_iscorrect($pageid, $answer->jumpto)) {
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if ($page->qoption) {
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// case sensitive
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if (ereg('^'.$answer->answer.'$', $useranswer)) {
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$correctanswer = true;
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$newpageid = $answer->jumpto;
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if (trim(strip_tags($answer->response))) {
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$response = $answer->response;
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}
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}
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} else {
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// case insensitive
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if (eregi('^'.$answer->answer.'$', $useranswer)) {
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$correctanswer = true;
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$newpageid = $answer->jumpto;
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if (trim(strip_tags($answer->response))) {
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$response = $answer->response;
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}
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}
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}
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} else {
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// see if user typed in any of the wrong answers
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// don't worry about case
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if (eregi('^'.$answer->answer.'$', $useranswer)) {
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$newpageid = $answer->jumpto;
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if (trim(strip_tags($answer->response))) {
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$response = $answer->response;
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}
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}
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}
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}
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if (!isset($response)) {
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if ($correctanswer) {
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$response = get_string("thatsthecorrectanswer", "lesson");
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} else {
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$response = get_string("thatsthewronganswer", "lesson");
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}
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}
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break;
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case LESSON_TRUEFALSE :
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if (empty($_POST['answerid'])) {
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$noanswer = true;
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break;
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}
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$answerid = $_POST['answerid'];
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if (!$answer = get_record("lesson_answers", "id", $answerid)) {
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error("Continue: answer record not found");
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}
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if (lesson_iscorrect($pageid, $answer->jumpto)) {
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$correctanswer = true;
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}
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$newpageid = $answer->jumpto;
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if (!$response = trim($answer->response)) {
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if ($correctanswer) {
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$response = get_string("thatsthecorrectanswer", "lesson");
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} else {
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$response = get_string("thatsthewronganswer", "lesson");
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}
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}
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break;
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case LESSON_MULTICHOICE :
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if ($page->qoption) {
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// MULTIANSWER allowed, user's answer is an array
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if (isset($_POST['answer'])) {
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$useranswers = $_POST['answer'];
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} else {
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$noanswer = true;
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break;
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}
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// get the answers in a set order, the id order
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if (!$answers = get_records("lesson_answers", "pageid", $pageid, "id")) {
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error("Continue: No answers found");
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}
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$ncorrect = 0;
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$nhits = 0;
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$correctresponse = '';
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$wrongresponse = '';
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foreach ($answers as $answer) {
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if (lesson_iscorrect($pageid, $answer->jumpto)) {
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$ncorrect++;
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foreach ($useranswers as $key => $answerid) {
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if ($answerid == $answer->id) {
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$nhits++;
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}
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}
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// save the first jumpto page id, may be needed!...
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if (!isset($correctpageid)) {
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// leave in its "raw" state - will converted into a proper page id later
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$correctpageid = $answer->jumpto;
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}
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// ...also save any response from the correct answers...
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if (trim(strip_tags($answer->response))) {
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$correctresponse = $answer->response;
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}
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} else {
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// save the first jumpto page id, may be needed!...
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if (!isset($wrongpageid)) {
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// leave in its "raw" state - will converted into a proper page id later
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$wrongpageid = $answer->jumpto;
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}
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// ...and from the incorrect ones, don't know which to use at this stage
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if (trim(strip_tags($answer->response))) {
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$wrongresponse = $answer->response;
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}
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}
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}
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if ((count($useranswers) == $ncorrect) and ($nhits == $ncorrect)) {
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$correctanswer = true;
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if (!$response = $correctresponse) {
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$response = get_string("thatsthecorrectanswer", "lesson");
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}
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$newpageid = $correctpageid;
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} else {
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if (!$response = $wrongresponse) {
|
|
$response = get_string("thatsthewronganswer", "lesson");
|
|
}
|
|
$newpageid = $wrongpageid;
|
|
}
|
|
} else {
|
|
// only one answer allowed
|
|
if (empty($_POST['answerid'])) {
|
|
$noanswer = true;
|
|
break;
|
|
}
|
|
$answerid = $_POST['answerid'];
|
|
if (!$answer = get_record("lesson_answers", "id", $answerid)) {
|
|
error("Continue: answer record not found");
|
|
}
|
|
if (lesson_iscorrect($pageid, $answer->jumpto)) {
|
|
$correctanswer = true;
|
|
}
|
|
$newpageid = $answer->jumpto;
|
|
if (!$response = trim($answer->response)) {
|
|
if ($correctanswer) {
|
|
$response = get_string("thatsthecorrectanswer", "lesson");
|
|
} else {
|
|
$response = get_string("thatsthewronganswer", "lesson");
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case LESSON_MATCHING :
|
|
if (isset($_POST['response'])) {
|
|
$response = $_POST['response'];
|
|
} else {
|
|
$noanswer = true;
|
|
break;
|
|
}
|
|
if (!$answers = get_records("lesson_answers", "pageid", $pageid, "id")) {
|
|
error("Continue: No answers found");
|
|
}
|
|
$ncorrect = 0;
|
|
$i = 0;
|
|
foreach ($answers as $answer) {
|
|
if ($answer->response == $response[$answer->id]) {
|
|
$ncorrect++;
|
|
}
|
|
if ($i == 0) {
|
|
$correctpageid = $answer->jumpto;
|
|
}
|
|
if ($i == 1) {
|
|
$wrongpageid = $answer->jumpto;
|
|
}
|
|
$i++;
|
|
}
|
|
if ($ncorrect == count($answers)) {
|
|
$response = get_string("thatsthecorrectanswer", "lesson");
|
|
$newpageid = $correctpageid;
|
|
$correctanswer = true;
|
|
} else {
|
|
$response = get_string("numberofcorrectmatches", "lesson", $ncorrect);
|
|
$newpageid = $wrongpageid;
|
|
}
|
|
break;
|
|
|
|
case LESSON_NUMERICAL :
|
|
// set defaults
|
|
$response = '';
|
|
$newpageid = 0;
|
|
|
|
if (!$useranswer = (float) $_POST['answer']) {
|
|
$noanswer = true;
|
|
break;
|
|
}
|
|
if (!$answers = get_records("lesson_answers", "pageid", $pageid, "id")) {
|
|
error("Continue: No answers found");
|
|
}
|
|
foreach ($answers as $answer) {
|
|
if (strpos($answer->answer, ':')) {
|
|
// there's a pairs of values
|
|
list($min, $max) = explode(':', $answer->answer);
|
|
$minimum = (float) $min;
|
|
$maximum = (float) $max;
|
|
} else {
|
|
// there's only one value
|
|
$minimum = (float) $answer->answer;
|
|
$maximum = $minimum;
|
|
}
|
|
if (($useranswer >= $minimum) and ($useranswer <= $maximum)) {
|
|
$newpageid = $answer->jumpto;
|
|
$response = trim($answer->response);
|
|
if (lesson_iscorrect($pageid, $newpageid)) {
|
|
$correctanswer = true;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ($correctanswer) {
|
|
if (!$response) {
|
|
$response = get_string("thatsthecorrectanswer", "lesson");
|
|
}
|
|
} else {
|
|
if (!$response) {
|
|
$response = get_string("thatsthewronganswer", "lesson");
|
|
}
|
|
}
|
|
break;
|
|
|
|
case LESSON_BRANCHTABLE:
|
|
$noanswer = false;
|
|
$newpageid = $_POST['jumpto'];
|
|
// convert jumpto page into a proper page id
|
|
if ($newpageid == 0) {
|
|
$newpageid = $pageid;
|
|
} elseif ($newpageid == LESSON_NEXTPAGE) {
|
|
if (!$newpageid = $page->nextpageid) {
|
|
// no nextpage go to end of lesson
|
|
$newpageid = LESSON_EOL;
|
|
}
|
|
}
|
|
// no need to record anything in lesson_attempts
|
|
redirect("view.php?id=$cm->id&action=navigation&pageid=$newpageid");
|
|
print_footer($course);
|
|
exit();
|
|
break;
|
|
|
|
}
|
|
if ($noanswer) {
|
|
$newpageid = $pageid; // display same page again
|
|
print_simple_box(get_string("noanswer", "lesson"), "center");
|
|
} else {
|
|
$nretakes = count_records("lesson_grades", "lessonid", $lesson->id, "userid", $USER->id);
|
|
if (isstudent($course->id)) {
|
|
// record student's attempt
|
|
$attempt->lessonid = $lesson->id;
|
|
$attempt->pageid = $pageid;
|
|
$attempt->userid = $USER->id;
|
|
$attempt->answerid = $answerid;
|
|
$attempt->retry = $nretakes;
|
|
$attempt->correct = $correctanswer;
|
|
$attempt->timeseen = time();
|
|
if (!$newattemptid = insert_record("lesson_attempts", $attempt)) {
|
|
error("Continue: attempt not inserted");
|
|
}
|
|
if (!$correctanswer and ($newpageid == 0)) {
|
|
// wrong answer and student is stuck on this page - check how many attempts
|
|
// the student has had at this page/question
|
|
$nattempts = count_records("lesson_attempts", "pageid", $pageid, "userid", $USER->id,
|
|
"retry", $nretakes);
|
|
|
|
if ($nattempts >= $lesson->maxattempts) {
|
|
if ($lesson->maxattempts > 1) { // don't bother with message if only one attempt
|
|
echo "<p align=\"center\">(".get_string("maximumnumberofattempts", "lesson").
|
|
" ".get_string("reached", "lesson")." - ".
|
|
get_string("movingtonextpage", "lesson").")</p>\n";
|
|
}
|
|
$newpageid = LESSON_NEXTPAGE;
|
|
}
|
|
}
|
|
}
|
|
// convert jumpto page into a proper page id
|
|
if ($newpageid == 0) {
|
|
$newpageid = $pageid;
|
|
} elseif ($newpageid == LESSON_NEXTPAGE) {
|
|
if ($lesson->nextpagedefault) {
|
|
// in Flash Card mode...
|
|
// ... first get the page ids (lessonid the 5th param is needed to make get_records play)
|
|
$allpages = get_records("lesson_pages", "lessonid", $lesson->id, "id", "id,lessonid");
|
|
shuffle ($allpages);
|
|
$found = false;
|
|
if ($lesson->nextpagedefault == LESSON_UNSEENPAGE) {
|
|
foreach ($allpages as $thispage) {
|
|
if (!count_records("lesson_attempts", "pageid", $thispage->id, "userid",
|
|
$USER->id, "retry", $nretakes)) {
|
|
$found = true;
|
|
break;
|
|
}
|
|
}
|
|
} elseif ($lesson->nextpagedefault == LESSON_UNANSWEREDPAGE) {
|
|
foreach ($allpages as $thispage) {
|
|
if (!count_records_select("lesson_attempts", "pageid = $thispage->id AND
|
|
userid = $USER->id AND correct = 1 AND retry = $nretakes")) {
|
|
$found = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if ($found) {
|
|
$newpageid = $thispage->id;
|
|
if ($lesson->maxpages) {
|
|
// check number of pages viewed (in the lesson)
|
|
if (count_records("lesson_attempts", "lessonid", $lesson->id, "userid", $USER->id,
|
|
"retry", $nretakes) >= $lesson->maxpages) {
|
|
$newpageid = LESSON_EOL;
|
|
}
|
|
}
|
|
} else {
|
|
$newpageid = LESSON_EOL;
|
|
}
|
|
} elseif (!$newpageid = $page->nextpageid) {
|
|
// no nextpage go to end of lesson
|
|
$newpageid = LESSON_EOL;
|
|
}
|
|
}
|
|
|
|
// display response (if there is one - there should be!)
|
|
if ($response) {
|
|
$title = get_field("lesson_pages", "title", "id", $pageid);
|
|
print_heading($title);
|
|
echo "<table width=\"80%\" border=\"0\" align=\"center\"><tr><td>\n";
|
|
print_simple_box(format_text($response), 'center');
|
|
echo "</td></tr></table>\n";
|
|
}
|
|
}
|
|
echo "<form name=\"pageform\" method =\"post\" action=\"view.php\">\n";
|
|
echo "<input type=\"hidden\" name=\"id\" value=\"$cm->id\">\n";
|
|
echo "<input type=\"hidden\" name=\"action\" value=\"navigation\">\n";
|
|
echo "<input type=\"hidden\" name=\"pageid\" value=\"$newpageid\">\n";
|
|
echo "<p align=\"center\"><input type=\"submit\" name=\"continue\" value=\"".
|
|
get_string("continue", "lesson")."\"></p>\n";
|
|
echo "</form>\n";
|
|
}
|
|
|
|
|
|
|
|
/******************* delete ************************************/
|
|
elseif ($action == 'delete' ) {
|
|
|
|
if (!isteacher($course->id)) {
|
|
error("Only teachers can look at this page");
|
|
}
|
|
|
|
if (empty($_GET['pageid'])) {
|
|
error("Delete: pageid missing");
|
|
}
|
|
$pageid = $_GET['pageid'];
|
|
if (!$thispage = get_record("lesson_pages", "id", $pageid)) {
|
|
error("Delete: page record not found");
|
|
}
|
|
|
|
print_string("deleting", "lesson");
|
|
// first delete all the associated records...
|
|
delete_records("lesson_attempts", "pageid", $pageid);
|
|
// ...now delete the answers...
|
|
delete_records("lesson_answers", "pageid", $pageid);
|
|
// ..and the page itself
|
|
delete_records("lesson_pages", "id", $pageid);
|
|
|
|
// repair the hole in the linkage
|
|
if (!$thispage->prevpageid) {
|
|
// this is the first page...
|
|
if (!$page = get_record("lesson_pages", "id", $thispage->nextpageid)) {
|
|
error("Delete: next page not found");
|
|
}
|
|
if (!set_field("lesson_pages", "prevpageid", 0, "id", $page->id)) {
|
|
error("Delete: unable to set prevpage link");
|
|
}
|
|
} elseif (!$thispage->nextpageid) {
|
|
// this is the last page...
|
|
if (!$page = get_record("lesson_pages", "id", $thispage->prevpageid)) {
|
|
error("Delete: prev page not found");
|
|
}
|
|
if (!set_field("lesson_pages", "nextpageid", 0, "id", $page->id)) {
|
|
error("Delete: unable to set nextpage link");
|
|
}
|
|
} else {
|
|
// page is in the middle...
|
|
if (!$prevpage = get_record("lesson_pages", "id", $thispage->prevpageid)) {
|
|
error("Delete: prev page not found");
|
|
}
|
|
if (!$nextpage = get_record("lesson_pages", "id", $thispage->nextpageid)) {
|
|
error("Delete: next page not found");
|
|
}
|
|
if (!set_field("lesson_pages", "nextpageid", $nextpage->id, "id", $prevpage->id)) {
|
|
error("Delete: unable to set next link");
|
|
}
|
|
if (!set_field("lesson_pages", "prevpageid", $prevpage->id, "id", $nextpage->id)) {
|
|
error("Delete: unable to set prev link");
|
|
}
|
|
}
|
|
redirect("view.php?id=$cm->id", get_string("ok"));
|
|
}
|
|
|
|
|
|
|
|
/************** edit page ************************************/
|
|
elseif ($action == 'editpage' ) {
|
|
|
|
if (!isteacher($course->id)) {
|
|
error("Only teachers can look at this page");
|
|
}
|
|
|
|
// get the page
|
|
if (!$page = get_record("lesson_pages", "id", $_GET['pageid'])) {
|
|
error("Edit page: page record not found");
|
|
}
|
|
// set of jump array
|
|
$jump[0] = get_string("thispage", "lesson");
|
|
$jump[LESSON_NEXTPAGE] = get_string("nextpage", "lesson");
|
|
$jump[LESSON_EOL] = get_string("endoflesson", "lesson");
|
|
if (!$apageid = get_field("lesson_pages", "id", "lessonid", $lesson->id, "prevpageid", 0)) {
|
|
error("Edit page: first page not found");
|
|
}
|
|
while (true) {
|
|
if ($apageid) {
|
|
if (!$apage = get_record("lesson_pages", "id", $apageid)) {
|
|
error("Edit page: apage record not found");
|
|
}
|
|
if ($apage->qtype != LESSON_ENDOFBRANCH) {
|
|
// don't include EOB's in the list...
|
|
if (trim($page->title)) { // ...nor nuffin pages
|
|
$jump[$apageid] = $apage->title;
|
|
}
|
|
}
|
|
$apageid = $apage->nextpageid;
|
|
} else {
|
|
// last page reached
|
|
break;
|
|
}
|
|
}
|
|
|
|
// give teacher a proforma
|
|
?>
|
|
<form name="editpage" method="post" action="lesson.php">
|
|
<input type="hidden" name="id" value="<?PHP echo $cm->id ?>">
|
|
<input type="hidden" name="action" value="updatepage">
|
|
<input type="hidden" name="pageid" value="<?PHP echo $_GET['pageid'] ?>">
|
|
<input type="hidden" name="redisplay" value="0">
|
|
<center><table cellpadding=5 border=1>
|
|
<tr><td align="center">
|
|
<tr valign="top">
|
|
<td><b><?php print_string("pagetitle", "lesson"); ?>:</b><br />
|
|
<input type="text" name="title" size="80" maxsize="255" value="<?PHP echo $page->title ?>"></td>
|
|
</tr>
|
|
<?PHP
|
|
echo "<tr><td><b>";
|
|
echo get_string("pagecontents", "lesson").":</b><br />\n";
|
|
print_textarea($usehtmleditor, 25, 70, 630, 400, "contents", $page->contents);
|
|
use_html_editor("contents"); // always the editor
|
|
echo "</td></tr>\n";
|
|
$n = 0;
|
|
switch ($page->qtype) {
|
|
case LESSON_SHORTANSWER :
|
|
echo "<tr><td><b>".get_string("questiontype", "lesson").":</b> \n";
|
|
choose_from_menu($LESSON_QUESTION_TYPE, "qtype", $page->qtype, "");
|
|
echo " ";
|
|
echo " <b>".get_string("casesensitive", "lesson").":</b> \n";
|
|
if ($page->qoption) {
|
|
echo "<input type=\"checkbox\" name=\"qoption\" value=\"1\" checked=\"checked\"/>";
|
|
} else {
|
|
echo "<input type=\"checkbox\" name=\"qoption\" value=\"1\"/>";
|
|
}
|
|
helpbutton("questiontypes", get_string("questiontype", "lesson"), "lesson");
|
|
break;
|
|
case LESSON_MULTICHOICE :
|
|
echo "<tr><td><b>".get_string("questiontype", "lesson").":</b> \n";
|
|
choose_from_menu($LESSON_QUESTION_TYPE, "qtype", $page->qtype, "");
|
|
echo " ";
|
|
echo " <b>".get_string("multianswer", "lesson").":</b> \n";
|
|
if ($page->qoption) {
|
|
echo "<input type=\"checkbox\" name=\"qoption\" value=\"1\" checked=\"checked\"/>";
|
|
} else {
|
|
echo "<input type=\"checkbox\" name=\"qoption\" value=\"1\"/>";
|
|
}
|
|
helpbutton("questiontypes", get_string("questiontype", "lesson"), "lesson");
|
|
break;
|
|
case LESSON_TRUEFALSE :
|
|
case LESSON_MATCHING :
|
|
case LESSON_NUMERICAL :
|
|
echo "<tr><td><b>".get_string("questiontype", "lesson").":</b> \n";
|
|
choose_from_menu($LESSON_QUESTION_TYPE, "qtype", $page->qtype, "");
|
|
helpbutton("questiontypes", get_string("questiontype", "lesson"), "lesson");
|
|
break;
|
|
case LESSON_BRANCHTABLE :
|
|
echo "<input type=\"hidden\" name=\"qtype\" value=\"$page->qtype\">\n";
|
|
echo "<tr><td><b>".get_string("branchtable", "lesson")."</b> \n";
|
|
break;
|
|
case LESSON_ENDOFBRANCH :
|
|
echo "<input type=\"hidden\" name=\"qtype\" value=\"$page->qtype\">\n";
|
|
echo "<tr><td><b>".get_string("endofbranch", "lesson")."</b> \n";
|
|
break;
|
|
}
|
|
echo "</td></tr>\n";
|
|
// get the answers in a set order, the id order
|
|
if ($answers = get_records("lesson_answers", "pageid", $page->id, "id")) {
|
|
foreach ($answers as $answer) {
|
|
$flags = intval($answer->flags); // force into an integer
|
|
$nplus1 = $n + 1;
|
|
echo "<input type=\"hidden\" name=\"answerid[$n]\" value=\"$answer->id\">\n";
|
|
switch ($page->qtype) {
|
|
case LESSON_MULTICHOICE:
|
|
case LESSON_TRUEFALSE:
|
|
case LESSON_SHORTANSWER:
|
|
case LESSON_NUMERICAL:
|
|
case LESSON_MATCHING:
|
|
echo "<tr><td><b>".get_string("answer", "lesson")." $nplus1:</b>\n";
|
|
if ($flags & LESSON_ANSWER_EDITOR) {
|
|
echo " [".get_string("useeditor", "lesson").": ".
|
|
"<input type=\"checkbox\" name=\"answereditor[$n]\" value=\"1\"
|
|
checked=\"checked\">";
|
|
helpbutton("useeditor", get_string("useeditor", "lesson"), "lesson");
|
|
echo "]<br />\n";
|
|
print_textarea($usehtmleditor, 20, 70, 630, 300, "answer[$n]", $answer->answer);
|
|
use_html_editor("answer[$n]"); // switch on the editor
|
|
} else {
|
|
echo " [".get_string("useeditor", "lesson").": ".
|
|
"<input type=\"checkbox\" name=\"answereditor[$n]\" value=\"1\">";
|
|
helpbutton("useeditor", get_string("useeditor", "lesson"), "lesson");
|
|
echo "]<br />\n";
|
|
print_textarea(false, 6, 70, 630, 300, "answer[$n]", $answer->answer);
|
|
}
|
|
echo "</td></tr>\n";
|
|
echo "<tr><td><b>".get_string("response", "lesson")." $nplus1:</b>\n";
|
|
if ($flags & LESSON_RESPONSE_EDITOR) {
|
|
echo " [".get_string("useeditor", "lesson").": ".
|
|
"<input type=\"checkbox\" name=\"responseeditor[$n]\" value=\"1\"
|
|
checked=\"checked\">";
|
|
helpbutton("useeditor", get_string("useeditor", "lesson"), "lesson");
|
|
echo "]<br />\n";
|
|
print_textarea($usehtmleditor, 20, 70, 630, 300, "response[$n]", $answer->response);
|
|
use_html_editor("response[$n]"); // switch on the editor
|
|
} else {
|
|
echo " [".get_string("useeditor", "lesson").": ".
|
|
"<input type=\"checkbox\" name=\"responseeditor[$n]\" value=\"1\">";
|
|
helpbutton("useeditor", get_string("useeditor", "lesson"), "lesson");
|
|
echo "]<br />\n";
|
|
print_textarea(false, 6, 70, 630, 300, "response[$n]", $answer->response);
|
|
}
|
|
echo "</td></tr>\n";
|
|
break;
|
|
case LESSON_BRANCHTABLE:
|
|
echo "<tr><td><b>".get_string("description", "lesson")." $nplus1:</b>\n";
|
|
if ($flags & LESSON_ANSWER_EDITOR) {
|
|
echo " [".get_string("useeditor", "lesson").": ".
|
|
"<input type=\"checkbox\" name=\"answereditor[$n]\" value=\"1\"
|
|
checked=\"checked\">";
|
|
helpbutton("useeditor", get_string("useeditor", "lesson"), "lesson");
|
|
echo "]<br />\n";
|
|
print_textarea($usehtmleditor, 20, 70, 630, 300, "answer[$n]", $answer->answer);
|
|
} else {
|
|
echo " [".get_string("useeditor", "lesson").": ".
|
|
"<input type=\"checkbox\" name=\"answereditor[$n]\" value=\"1\">";
|
|
helpbutton("useeditor", get_string("useeditor", "lesson"), "lesson");
|
|
echo "]<br />\n";
|
|
print_textarea(false, 10, 70, 630, 300, "answer[$n]", $answer->answer);
|
|
}
|
|
echo "</td></tr>\n";
|
|
break;
|
|
}
|
|
echo "<tr><td><b>".get_string("jump", "lesson")." $nplus1:</b> \n";
|
|
lesson_choose_from_menu($jump, "jumpto[$n]", $answer->jumpto, "");
|
|
helpbutton("jumpto", get_string("jump", "lesson"), "lesson");
|
|
echo "</td></tr>\n";
|
|
$n++;
|
|
}
|
|
}
|
|
if ($page->qtype != LESSON_ENDOFBRANCH) {
|
|
for ($i = $n; $i < $lesson->maxanswers; $i++) {
|
|
$iplus1 = $i + 1;
|
|
echo "<input type=\"hidden\" name=\"answerid[$i]\" value=\"0\">\n";
|
|
switch ($page->qtype) {
|
|
case LESSON_MULTICHOICE:
|
|
case LESSON_TRUEFALSE:
|
|
case LESSON_SHORTANSWER:
|
|
case LESSON_NUMERICAL:
|
|
case LESSON_MATCHING:
|
|
echo "<tr><td><b>".get_string("answer", "lesson")." $iplus1:</b>\n";
|
|
echo " [".get_string("useeditor", "lesson").": ".
|
|
"<input type=\"checkbox\" name=\"answereditor[$i]\" value=\"1\">";
|
|
helpbutton("useeditor", get_string("useeditor", "lesson"), "lesson");
|
|
echo "]<br />\n";
|
|
print_textarea(false, 10, 70, 630, 300, "answer[$i]");
|
|
echo "</td></tr>\n";
|
|
echo "<tr><td><b>".get_string("response", "lesson")." $iplus1:</b>\n";
|
|
echo " [".get_string("useeditor", "lesson").": ".
|
|
"<input type=\"checkbox\" name=\"responseeditor[$i]\" value=\"1\">";
|
|
helpbutton("useeditor", get_string("useeditor", "lesson"), "lesson");
|
|
echo "]<br />\n";
|
|
print_textarea(false, 10, 70, 630, 300, "response[$i]");
|
|
echo "</td></tr>\n";
|
|
break;
|
|
case LESSON_BRANCHTABLE:
|
|
echo "<tr><td><b>".get_string("description", "lesson")." $iplus1:</b>\n";
|
|
echo " [".get_string("useeditor", "lesson").": ".
|
|
"<input type=\"checkbox\" name=\"answereditor[$i]\" value=\"1\">";
|
|
helpbutton("useeditor", get_string("useeditor", "lesson"), "lesson");
|
|
echo "]<br />\n";
|
|
print_textarea(false, 10, 70, 630, 300, "answer[$i]");
|
|
echo "</td></tr>\n";
|
|
break;
|
|
}
|
|
echo "<tr><td><B>".get_string("jump", "lesson")." $iplus1:</b> \n";
|
|
lesson_choose_from_menu($jump, "jumpto[$i]", 0, "");
|
|
helpbutton("jumpto", get_string("jump", "lesson"), "lesson");
|
|
echo "</td></tr>\n";
|
|
}
|
|
}
|
|
// close table and form
|
|
?>
|
|
</table><br />
|
|
<input type="button" value="<?php print_string("redisplaypage", "lesson") ?>"
|
|
onclick="document.editpage.redisplay.value=1;document.editpage.submit();">
|
|
<input type="submit" value="<?php print_string("savepage", "lesson") ?>">
|
|
<input type="submit" name="cancel" value="<?php print_string("cancel") ?>">
|
|
</center>
|
|
</form>
|
|
<?PHP
|
|
}
|
|
|
|
|
|
/****************** insert page ************************************/
|
|
elseif ($action == 'insertpage' ) {
|
|
|
|
if (!isteacher($course->id)) {
|
|
error("Only teachers can look at this page");
|
|
}
|
|
|
|
$timenow = time();
|
|
$form = data_submitted();
|
|
|
|
if ($form->pageid) {
|
|
// the new page is not the first page
|
|
if (!$page = get_record("lesson_pages", "id", $form->pageid)) {
|
|
error("Insert page: page record not found");
|
|
}
|
|
$newpage->lessonid = $lesson->id;
|
|
$newpage->prevpageid = $form->pageid;
|
|
$newpage->nextpageid = $page->nextpageid;
|
|
$newpage->timecreated = $timenow;
|
|
$newpage->qtype = $form->qtype;
|
|
if (isset($form->qoption)) {
|
|
$newpage->qoption = $form->qoption;
|
|
} else {
|
|
$newpage->qoption = 0;
|
|
}
|
|
$newpage->title = $form->title;
|
|
$newpage->contents = trim($form->contents);
|
|
$newpageid = insert_record("lesson_pages", $newpage);
|
|
if (!$newpageid) {
|
|
error("Insert page: new page not inserted");
|
|
}
|
|
// update the linked list
|
|
if (!set_field("lesson_pages", "nextpageid", $newpageid, "id", $form->pageid)) {
|
|
error("Insert page: unable to update next link");
|
|
}
|
|
if ($page->nextpageid) {
|
|
// new page is not the last page
|
|
if (!set_field("lesson_pages", "prevpageid", $newpageid, "id", $page->nextpageid)) {
|
|
error("Insert page: unable to update previous link");
|
|
}
|
|
}
|
|
} else {
|
|
// new page is the first page
|
|
// get the existing (first) page (if any)
|
|
if (!$page = get_record_select("lesson_pages", "lessonid = $lesson->id AND prevpageid = 0")) {
|
|
// there are no existing pages
|
|
$newpage->lessonid = $lesson->id;
|
|
$newpage->prevpageid = 0; // this is a first page
|
|
$newpage->nextpageid = 0; // this is the only page
|
|
$newpage->timecreated = $timenow;
|
|
$newpage->qtype = $form->qtype;
|
|
if (isset($form->qoption)) {
|
|
$newpage->qoption = $form->qoption;
|
|
} else {
|
|
$newpage->qoption = 0;
|
|
}
|
|
$newpage->title = $form->title;
|
|
$newpage->contents = trim($form->contents);
|
|
$newpageid = insert_record("lesson_pages", $newpage);
|
|
if (!$newpageid) {
|
|
error("Insert page: new first page not inserted");
|
|
}
|
|
} else {
|
|
// there are existing pages put this at the start
|
|
$newpage->lessonid = $lesson->id;
|
|
$newpage->prevpageid = 0; // this is a first page
|
|
$newpage->nextpageid = $page->id;
|
|
$newpage->timecreated = $timenow;
|
|
$newpage->qtype = $form->qtype;
|
|
if (isset($form->qoption)) {
|
|
$newpage->qoption = $form->qoption;
|
|
} else {
|
|
$newpage->qoption = 0;
|
|
}
|
|
$newpage->title = $form->title;
|
|
$newpage->contents = trim($form->contents);
|
|
$newpageid = insert_record("lesson_pages", $newpage);
|
|
if (!$newpageid) {
|
|
error("Insert page: first page not inserted");
|
|
}
|
|
// update the linked list
|
|
if (!set_field("lesson_pages", "prevpageid", $newpageid, "id", $page->id)) {
|
|
error("Insert page: unable to update link");
|
|
}
|
|
}
|
|
}
|
|
// now add the answers
|
|
for ($i = 0; $i < $lesson->maxanswers; $i++) {
|
|
if (trim(strip_tags($form->answer[$i]))) { // strip_tags because the HTML editor adds <p><br />...
|
|
$newanswer->lessonid = $lesson->id;
|
|
$newanswer->pageid = $newpageid;
|
|
$newanswer->timecreated = $timenow;
|
|
$newanswer->answer = trim($form->answer[$i]);
|
|
if (isset($form->response[$i])) {
|
|
$newanswer->response = trim($form->response[$i]);
|
|
}
|
|
if (isset($form->jumpto[$i])) {
|
|
$newanswer->jumpto = $form->jumpto[$i];
|
|
}
|
|
$newanswerid = insert_record("lesson_answers", $newanswer);
|
|
if (!$newanswerid) {
|
|
error("Insert Page: answer record $i not inserted");
|
|
}
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
redirect("view.php?id=$cm->id", get_string("ok"));
|
|
}
|
|
|
|
|
|
/****************** move ************************************/
|
|
elseif ($action == 'move') {
|
|
|
|
if (!isteacher($course->id)) {
|
|
error("Only teachers can look at this page");
|
|
}
|
|
|
|
$pageid = $_GET['pageid'];
|
|
$title = get_field("lesson_pages", "title", "id", $pageid);
|
|
print_heading(get_string("moving", "lesson", $title));
|
|
|
|
if (!$page = get_record_select("lesson_pages", "lessonid = $lesson->id AND prevpageid = 0")) {
|
|
error("Move: first page not found");
|
|
}
|
|
|
|
echo "<center><table cellpadding=\"5\" border=\"1\">\n";
|
|
echo "<tr><td><a href=\"lesson.php?id=$cm->id&action=moveit&pageid=$pageid&after=0\"><small>".
|
|
get_string("movepagehere", "lesson")."</small></a></td></tr>\n";
|
|
while (true) {
|
|
if ($page->id != $pageid) {
|
|
if (!$title = trim($page->title)) {
|
|
$title = "<< ".get_string("notitle", "lesson")." >>";
|
|
}
|
|
echo "<tr><td bgcolor=\"$THEME->cellheading2\"><b>$title</b></td></tr>\n";
|
|
echo "<tr><td><a href=\"lesson.php?id=$cm->id&action=moveit&pageid=$pageid&after={$page->id}\"><small>".
|
|
get_string("movepagehere", "lesson")."</small></a></td></tr>\n";
|
|
}
|
|
if ($page->nextpageid) {
|
|
if (!$page = get_record("lesson_pages", "id", $page->nextpageid)) {
|
|
error("Teacher view: Next page not found!");
|
|
}
|
|
} else {
|
|
// last page reached
|
|
break;
|
|
}
|
|
}
|
|
echo "</table>\n";
|
|
}
|
|
|
|
|
|
/****************** moveit ************************************/
|
|
elseif ($action == 'moveit') {
|
|
|
|
if (!isteacher($course->id)) {
|
|
error("Only teachers can look at this page");
|
|
}
|
|
|
|
$pageid = $_GET['pageid']; // page to move
|
|
if (!$page = get_record("lesson_pages", "id", $pageid)) {
|
|
error("Moveit: page not found");
|
|
}
|
|
$after = $_GET['after']; // target page
|
|
|
|
print_heading(get_string("moving", "lesson", $page->title));
|
|
|
|
// first step. determine the new first page
|
|
// (this is done first as the current first page will be lost in the next step)
|
|
if (!$after) {
|
|
// the moved page is the new first page
|
|
$newfirstpageid = $pageid;
|
|
// reset $after so that is points to the last page
|
|
// (when the pages are in a ring this will in effect be the first page)
|
|
if ($page->nextpageid) {
|
|
if (!$after = get_field("lesson_pages", "id", "lessonid", $lesson->id, "nextpageid", 0)) {
|
|
error("Moveit: last page id not found");
|
|
}
|
|
} else {
|
|
// the page being moved is the last page, so the new last page will be
|
|
$after = $page->prevpageid;
|
|
}
|
|
} elseif (!$page->prevpageid) {
|
|
// the page to be moved was the first page, so the following page must be the new first page
|
|
$newfirstpageid = $page->nextpageid;
|
|
} else {
|
|
// the current first page remains the first page
|
|
if (!$newfirstpageid = get_field("lesson_pages", "id", "lessonid", $lesson->id, "prevpageid", 0)) {
|
|
error("Moveit: current first page id not found");
|
|
}
|
|
}
|
|
// the rest is all unconditional...
|
|
|
|
// second step. join pages into a ring
|
|
if (!$firstpageid = get_field("lesson_pages", "id", "lessonid", $lesson->id, "prevpageid", 0)) {
|
|
error("Moveit: firstpageid not found");
|
|
}
|
|
if (!$lastpageid = get_field("lesson_pages", "id", "lessonid", $lesson->id, "nextpageid", 0)) {
|
|
error("Moveit: lastpage not found");
|
|
}
|
|
if (!set_field("lesson_pages", "prevpageid", $lastpageid, "id", $firstpageid)) {
|
|
error("Moveit: unable to update link");
|
|
}
|
|
if (!set_field("lesson_pages", "nextpageid", $firstpageid, "id", $lastpageid)) {
|
|
error("Moveit: unable to update link");
|
|
}
|
|
|
|
// third step. remove the page to be moved
|
|
if (!$prevpageid = get_field("lesson_pages", "prevpageid", "id", $pageid)) {
|
|
error("Moveit: prevpageid not found");
|
|
}
|
|
if (!$nextpageid = get_field("lesson_pages", "nextpageid", "id", $pageid)) {
|
|
error("Moveit: nextpageid not found");
|
|
}
|
|
if (!set_field("lesson_pages", "nextpageid", $nextpageid, "id", $prevpageid)) {
|
|
error("Moveit: unable to update link");
|
|
}
|
|
if (!set_field("lesson_pages", "prevpageid", $prevpageid, "id", $nextpageid)) {
|
|
error("Moveit: unable to update link");
|
|
}
|
|
|
|
// fourth step. insert page to be moved in new place...
|
|
if (!$nextpageid = get_field("lesson_pages", "nextpageid", "id", $after)) {
|
|
error("Movit: nextpageid not found");
|
|
}
|
|
if (!set_field("lesson_pages", "nextpageid", $pageid, "id", $after)) {
|
|
error("Moveit: unable to update link");
|
|
}
|
|
if (!set_field("lesson_pages", "prevpageid", $pageid, "id", $nextpageid)) {
|
|
error("Moveit: unable to update link");
|
|
}
|
|
// ...and set the links in the moved page
|
|
if (!set_field("lesson_pages", "prevpageid", $after, "id", $pageid)) {
|
|
error("Moveit: unable to update link");
|
|
}
|
|
if (!set_field("lesson_pages", "nextpageid", $nextpageid, "id", $pageid)) {
|
|
error("Moveit: unable to update link");
|
|
}
|
|
|
|
// fifth step. break the ring
|
|
if (!$newlastpageid = get_field("lesson_pages", "prevpageid", "id", $newfirstpageid)) {
|
|
error("Moveit: newlastpageid not found");
|
|
}
|
|
if (!set_field("lesson_pages", "prevpageid", 0, "id", $newfirstpageid)) {
|
|
error("Moveit: unable to update link");
|
|
}
|
|
if (!set_field("lesson_pages", "nextpageid", 0, "id", $newlastpageid)) {
|
|
error("Moveit: unable to update link");
|
|
}
|
|
redirect("view.php?id=$cm->id", get_string("ok"));
|
|
}
|
|
|
|
|
|
/****************** update page ************************************/
|
|
elseif ($action == 'updatepage' ) {
|
|
|
|
if (!isteacher($course->id)) {
|
|
error("Only teachers can look at this page");
|
|
}
|
|
|
|
$timenow = time();
|
|
$form = data_submitted();
|
|
|
|
$page->id = $form->pageid;
|
|
$page->timemodified = $timenow;
|
|
$page->qtype = $form->qtype;
|
|
if (isset($form->qoption)) {
|
|
$page->qoption = $form->qoption;
|
|
} else {
|
|
$page->qoption = 0;
|
|
}
|
|
$page->title = $form->title;
|
|
$page->contents = trim($form->contents);
|
|
if (!update_record("lesson_pages", $page)) {
|
|
error("Update page: page not updated");
|
|
}
|
|
if ($page->qtype == LESSON_ENDOFBRANCH) {
|
|
// there's just a single answer with a jump
|
|
$oldanswer->id = $form->answerid[0];
|
|
$oldanswer->timemodified = $timenow;
|
|
$oldanswer->jumpto = $form->jumpto[0];
|
|
if (!update_record("lesson_answers", $oldanswer)) {
|
|
error("Update page: EOB not updated");
|
|
}
|
|
} else {
|
|
// it's an "ordinary" page
|
|
for ($i = 0; $i < $lesson->maxanswers; $i++) {
|
|
// strip tags because the editor gives <p><br />...
|
|
// also save any answers where the editor is (going to be) used
|
|
if (!isset($form->answereditor[$i])) { // clean up check box
|
|
$form->answereditor[$i] = 0;
|
|
}
|
|
if (!isset($form->responseeditor[$i])) { // clean up check box
|
|
$form->responseeditor[$i] = 0;
|
|
}
|
|
if (trim(strip_tags($form->answer[$i])) or $form->answereditor[$i] or $form->responseeditor[$i]) {
|
|
if ($form->answerid[$i]) {
|
|
unset($oldanswer);
|
|
$oldanswer->id = $form->answerid[$i];
|
|
$oldanswer->flags = $form->answereditor[$i] * LESSON_ANSWER_EDITOR +
|
|
$form->responseeditor[$i] * LESSON_RESPONSE_EDITOR;
|
|
$oldanswer->timemodified = $timenow;
|
|
$oldanswer->answer = trim($form->answer[$i]);
|
|
if (isset($form->response[$i])) {
|
|
$oldanswer->response = trim($form->response[$i]);
|
|
}
|
|
$oldanswer->jumpto = $form->jumpto[$i];
|
|
if (!update_record("lesson_answers", $oldanswer)) {
|
|
error("Update page: answer $i not updated");
|
|
}
|
|
} else {
|
|
// it's a new answer
|
|
unset($newanswer); // need to clear id if more than one new answer is ben added
|
|
$newanswer->lessonid = $lesson->id;
|
|
$newanswer->pageid = $page->id;
|
|
$newanswer->flags = $form->answereditor[$i] * LESSON_ANSWER_EDITOR +
|
|
$form->responseeditor[$i] * LESSON_RESPONSE_EDITOR;
|
|
$newanswer->timecreated = $timenow;
|
|
$newanswer->answer = trim($form->answer[$i]);
|
|
if (isset($form->response[$i])) {
|
|
$newanswer->response = trim($form->response[$i]);
|
|
}
|
|
$newanswer->jumpto = $form->jumpto[$i];
|
|
$newanswerid = insert_record("lesson_answers", $newanswer);
|
|
if (!$newanswerid) {
|
|
error("Update page: answer record not inserted");
|
|
}
|
|
}
|
|
} else {
|
|
if ($form->answerid[$i]) {
|
|
// need to delete blanked out answer
|
|
if (!delete_records("lesson_answers", "id", $form->answerid[$i])) {
|
|
error("Update page: unable to delete answer record");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if ($form->redisplay) {
|
|
redirect("lesson.php?id=$cm->id&action=editpage&pageid=$page->id");
|
|
} else {
|
|
redirect("view.php?id=$cm->id", get_string("ok"));
|
|
}
|
|
}
|
|
|
|
|
|
/*************** no man's land **************************************/
|
|
else {
|
|
error("Fatal Error: Unknown Action: ".$action."\n");
|
|
}
|
|
|
|
print_footer($course);
|
|
|
|
?>
|
|
|