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blog MDL-22161 Fixed up blog menu block and added navigation options for users.
This commit is contained in:
Sam Hemelryk
parent
f65d7c1399
commit
27bad0a629
4 changed files with 360 additions and 71 deletions
296
blog/lib.php
296
blog/lib.php
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@ -268,6 +268,296 @@ function blog_get_context_url($context=null) {
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return $viewblogentriesurl;
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}
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/**
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* This function checks that blogs are enabled, and that the user is logged in an
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* is not the guest user.
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* @return bool
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*/
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function blog_is_enabled_for_user() {
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global $CFG;
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return (!empty($CFG->bloglevel) && $CFG->bloglevel <= BLOG_GLOBAL_LEVEL && isloggedin() && !isguestuser());
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}
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/**
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* This function gets all of the options available for the current user in respect
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* to blogs.
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*
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* It loads the following if applicable:
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* - Module options {@see blog_get_options_for_module}
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* - Course options {@see blog_get_options_for_course}
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* - User specific options {@see blog_get_options_for_user}
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* - General options (BLOG_LEVEL_GLOBAL)
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*
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* @param moodle_page $page The page to load for (normally $PAGE)
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* @param stdClass $userid Load for a specific user
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* @return array An array of options organised by type.
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*/
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function blog_get_all_options(moodle_page $page, stdClass $userid = null) {
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global $CFG, $DB, $USER;
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$options = array();
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// If blogs are enabled and the user is logged in and not a guest
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if (blog_is_enabled_for_user()) {
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// If the context is the user then assume we want to load for the users context
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if (is_null($userid) && $page->context->contextlevel == CONTEXT_USER) {
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$userid = $page->context->instanceid;
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}
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// Check the userid var
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if (!is_null($userid) && $userid!==$USER->id) {
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// Load the user from the userid... it MUST EXIST throw a wobbly if it doesn't!
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$user = $DB->get_record('user', array('id'=>$userid), '*', MUST_EXIST);
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} else {
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$user = null;
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}
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if ($CFG->useblogassociations && $page->cm !== null) {
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// Load for the module associated with the page
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$options[CONTEXT_MODULE] = blog_get_options_for_module($page->cm, $user);
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} else if ($CFG->useblogassociations && $page->course->id != SITEID) {
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// Load the options for the course associated with the page
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$options[CONTEXT_COURSE] = blog_get_options_for_course($page->course, $user);
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}
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// Get the options for the user
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if ($user !== null) {
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// Load for the requested user
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$options[CONTEXT_USER+1] = blog_get_options_for_user($user);
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}
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// Load for the current user
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$options[CONTEXT_USER] = blog_get_options_for_user();
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}
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// If blog level is global then display a link to view all site entries
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if (!empty($CFG->bloglevel) && $CFG->bloglevel >= BLOG_GLOBAL_LEVEL && has_capability('moodle/blog:view', get_context_instance(CONTEXT_SYSTEM))) {
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$options[CONTEXT_SYSTEM] = array('viewsite' => array(
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'string' => get_string('viewsiteentries', 'blog'),
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'link' => new moodle_url('/blog/index.php')
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));
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}
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// Return the options
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return $options;
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}
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/**
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* Get all of the blog options that relate to the passed user.
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*
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* If no user is passed the current user is assumed.
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*
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* @staticvar array $useroptions Cache so we don't have to regenerate multiple times
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* @param stdClass $user
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* @return array The array of options for the requested user
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*/
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function blog_get_options_for_user(stdClass $user=null) {
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global $CFG, $USER;
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// Cache
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static $useroptions = array();
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$options = array();
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// Blogs must be enabled and the user must be logged in
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if (!blog_is_enabled_for_user()) {
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return $options;
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}
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// Sort out the user var
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if ($user === null || $user->id == $USER->id) {
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$user = $USER;
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$iscurrentuser = true;
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} else {
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$iscurrentuser = false;
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}
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// If we've already generated serve from the cache
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if (array_key_exists($user->id, $useroptions)) {
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return $useroptions[$user->id];
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}
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$sitecontext = get_context_instance(CONTEXT_SYSTEM);
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$canview = has_capability('moodle/blog:view', $sitecontext);
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if (!$iscurrentuser && $canview && ($CFG->bloglevel >= BLOG_SITE_LEVEL)) {
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// Not the current user, but we can view and its blogs are enabled for SITE or GLOBAL
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$options['userentries'] = array(
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'string' => get_string('viewuserentries', 'blog', fullname($user)),
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'link' => new moodle_url('/blog/index.php', array('userid'=>$user->id))
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);
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} else {
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// It's the current user
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if ($canview) {
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// We can view our own blogs .... BIG surprise
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$options['view'] = array(
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'string' => get_string('viewallmyentries', 'blog'),
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'link' => new moodle_url('/blog/index.php', array('userid'=>$USER->id))
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);
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}
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if (has_capability('moodle/blog:create', $sitecontext)) {
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// We can add to our own blog
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$options['add'] = array(
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'string' => get_string('addnewentry', 'blog'),
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'link' => new moodle_url('/blog/edit.php', array('action'=>'add'))
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);
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}
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}
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// Cache the options
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$useroptions[$user->id] = $options;
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// Return the options
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return $options;
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}
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/**
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* Get the blog options that relate to the given course for the given user.
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*
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* @staticvar array $courseoptions A cache so we can save regenerating multiple times
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* @param stdClass $course The course to load options for
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* @param stdClass $user The user to load options for null == current user
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* @return array The array of options
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*/
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function blog_get_options_for_course(stdClass $course, stdClass $user=null) {
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global $CFG, $USER;
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// Cache
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static $courseoptions = array();
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$options = array();
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// User must be logged in and blogs must be enabled
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if (!blog_is_enabled_for_user()) {
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return $options;
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}
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// Check that the user can associate with the course
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$sitecontext = get_context_instance(CONTEXT_SYSTEM);
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if (!has_capability('moodle/blog:associatecourse', $sitecontext)) {
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return $options;
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}
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// Generate the cache key
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$key = $course->id.':';
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if (!empty($user)) {
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$key .= $user->id;
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} else {
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$key .= $USER->id;
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}
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// Serve from the cache if we've already generated for this course
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if (array_key_exists($key, $courseoptions)) {
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return $courseoptions[$course->id];
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}
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if (has_capability('moodle/blog:view', get_context_instance(CONTEXT_COURSE, $course->id))) {
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// We can view!
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if ($CFG->bloglevel >= BLOG_SITE_LEVEL) {
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// View entries about this course
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$options['courseview'] = array(
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'string' => get_string('viewcourseblogs', 'blog'),
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'link' => new moodle_url('/blog/index.php', array('courseid'=>$course->id))
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);
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}
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// View MY entries about this course
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$options['courseviewmine'] = array(
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'string' => get_string('viewmyentriesaboutcourse', 'blog'),
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'link' => new moodle_url('/blog/index.php', array('courseid'=>$course->id, 'userid'=>$USER->id))
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);
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if (!empty($user) && ($CFG->bloglevel >= BLOG_SITE_LEVEL)) {
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// View the provided users entries about this course
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$options['courseviewuser'] = array(
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'string' => get_string('viewentriesbyuseraboutcourse', 'blog', fullname($user)),
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'link' => new moodle_url('/blog/index.php', array('courseid'=>$course->id, 'userid'=>$user->id))
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);
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}
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}
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if (has_capability('moodle/blog:create', $sitecontext)) {
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// We can blog about this course
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$options['courseadd'] = array(
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'string' => get_string('blogaboutthiscourse', 'blog', get_string('course')),
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'link' => new moodle_url('/blog/edit.php', array('action'=>'add', 'courseid'=>$course->id))
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);
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}
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// Cache the options for this course
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$courseoptions[$key] = $options;
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// Return the options
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return $options;
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}
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/**
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* Get the blog options relating to the given module for the given user
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*
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* @staticvar array $moduleoptions Cache
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* @param stdClass $module The module to get options for
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* @param stdClass $user The user to get options for null == currentuser
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* @return array
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*/
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function blog_get_options_for_module(stdClass $module, stdClass $user=null) {
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global $CFG, $USER;
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// Cache
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static $moduleoptions = array();
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$options = array();
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// User must be logged in, blogs must be enabled
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if (!blog_is_enabled_for_user()) {
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return $options;
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}
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// Check the user can associate with the module
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$sitecontext = get_context_instance(CONTEXT_SYSTEM);
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if (!has_capability('moodle/blog:associatemodule', $sitecontext)) {
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return $options;
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}
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// Generate the cache key
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$key = $module->id.':';
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if (!empty($user)) {
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$key .= $user->id;
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} else {
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$key .= $USER->id;
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}
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if (array_key_exists($key, $moduleoptions)) {
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// Serve from the cache so we don't have to regenerate
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return $moduleoptions[$module->id];
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}
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if (has_capability('moodle/blog:view', get_context_instance(CONTEXT_MODULE, $module->id))) {
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// We can view!
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if ($CFG->bloglevel >= BLOG_SITE_LEVEL) {
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// View all entries about this module
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$a = new stdClass;
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$a->type = $module->modname;
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$options['moduleview'] = array(
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'string' => get_string('viewallmodentries', 'blog', $a),
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'link' => new moodle_url('/blog/index.php', array('modid'=>$module->id))
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);
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}
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// View MY entries about this module
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$options['moduleviewmine'] = array(
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'string' => get_string('viewmyentriesaboutmodule', 'blog', $module->modname),
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'link' => new moodle_url('/blog/index.php', array('modid'=>$module->id, 'userid'=>$USER->id))
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);
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if (!empty($user) && ($CFG->bloglevel >= BLOG_SITE_LEVEL)) {
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// View the given users entries about this module
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$a = new stdClass;
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$a->mod = $module->modname;
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$a->user = fullname($user);
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$options['moduleviewuser'] = array(
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'string' => get_string('blogentriesbyuseraboutmodule', 'blog', $a),
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'link' => new moodle_url('/blog/index.php', array('modid'=>$module->id, 'userid'=>$user->id))
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);
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}
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}
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if (has_capability('moodle/blog:create', $sitecontext)) {
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// The user can blog about this module
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$options['moduleadd'] = array(
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'string' => get_string('blogaboutthismodule', 'blog', $module->modname),
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'link' => new moodle_url('/blog/edit.php', array('action'=>'add', 'modid'=>$module->id))
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);
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}
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// Cache the options
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$moduleoptions[$key] = $options;
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// Return the options
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return $options;
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}
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/**
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* This function encapsulates all the logic behind the complex
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* navigation, titles and headings of the blog listing page, depending
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@ -358,6 +648,8 @@ function blog_get_headers() {
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$course = $DB->get_record('course', array('id' => $group->courseid));
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}
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$PAGE->set_pagelayout('standard');
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if (!empty($modid) && $CFG->useblogassociations && has_capability('moodle/blog:associatemodule', $sitecontext)) { // modid always overrides courseid, so the $course object may be reset here
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$headers['filters']['module'] = $modid;
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// A groupid param may conflict with this coursemod's courseid. Ignore groupid in that case
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@ -425,7 +717,7 @@ function blog_get_headers() {
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$PAGE->set_title("$site->shortname: " . fullname($user) . ": " . get_string('blog', 'blog'));
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$PAGE->set_heading("$site->shortname: " . fullname($user) . ": " . get_string('blog', 'blog'));
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$headers['heading'] = get_string('userblog', 'blog', fullname($user));
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$headers['strview'] = get_string('viewuserentries', 'blog');
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$headers['strview'] = get_string('viewuserentries', 'blog', fullname($user));
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} else
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@ -622,4 +914,4 @@ function blog_get_associated_count($courseid, $cmid=null) {
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$context = get_context_instance(CONTEXT_MODULE, $cmid);
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}
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return $DB->count_records('blog_association', array('contextid' => $context->id));
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}
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}
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