Naming, people, naming ... keep it clear but minim

2005-03-30 02:59:41 +00:00
parent 915d864c44
commit d1465c3d12
14 changed files with 7 additions and 7 deletions
@@ -0,0 +1,60 @@
+<?php
+
+/******************* delete ************************************/
+
+ 	if (!isteacher($course->id)) {
+	    error("Only teachers can look at this page");
+	}
+
+	confirm_sesskey();
+
+	if (empty($_GET['pageid'])) {
+	    error("Delete: pageid missing");
+	}
+	$pageid = required_param('pageid', PARAM_INT);
+	if (!$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('deletedpage', 'lesson'));
+?>