require_once '../tag/lib.php';
$action = optional_param('action', '', PARAM_ALPHA);
require_login();
if (empty($CFG->usetags)) {
error('Tags are disabled!');
}
if (isguestuser()) {
print_error('noguest');
}
if (!confirm_sesskey()) {
print_error('sesskey');
}
switch ($action) {
case 'addinterest':
$id = optional_param('id', 0, PARAM_INT);
$name = optional_param('name', '', PARAM_TEXT);
if (empty($name) && $id) {
$name = tag_name($id);
}
tag_an_item('user', $USER->id, $name);
if (!empty($name) && !$id) {
$id = tag_id(tag_normalize($name));
}
redirect($CFG->wwwroot . '/tag/index.php?id=' . $id);
break;
case 'flaginappropriate':
$id = required_param('id', PARAM_INT);
tag_flag_inappropriate($id);
redirect($CFG->wwwroot . '/tag/index.php?id=' . $id, get_string('responsiblewillbenotified', 'tag'));
break;
}
} else {
if (!empty($instanceid)) {
$instance = blocks_find_instance($instanceid, $pageblocks);
blocks_execute_action($PAGE, $pageblocks, strtolower($blockaction), $instance);
}
}
// This re-query could be eliminated by judicious programming in blocks_execute_action(),
// but I'm not sure if it's worth the complexity increase...
$pageblocks = blocks_get_by_page($PAGE);
}
$missingblocks = blocks_get_missing($PAGE, $pageblocks);
}
if (!empty($tagid)) {
$taginstance = get_record('tag', 'id', $tagid);
} elseif (!empty($tag)) {
$taginstance = tag_id($tag);
}
/// navigations
/// site blogs - sitefullname -> blogs -> (?tag)
/// course blogs - sitefullname -> course fullname ->blogs ->(?tag)
/// group blogs - sitefullname -> course fullname ->group ->(?tag)
/// user blogs - sitefullname -> (?coursefullname) -> participants -> blogs -> (?tag)
$blogstring = get_string('blogs', 'blog');
$tagstring = get_string('tag');
// needed also for user tabs later
if (!($course = get_record('course', 'id', $courseid))) {
error('Wrong course id');
}
$navlinks = array();
/// This is very messy atm.
switch ($filtertype) {
/**
* In a comma separated string of ids or names of tags, replaces all tag names with their correspoding ids
*
* Ex:
* Suppose the DB contains only the following entries in the tags table:
* id name
* 10 moodle
* 12 science
* 22 education
*
* tag_id_from_string('moodle, 12, education, programming, 33, 11')
* will return '10,12,22,,33,11'
*
* This is a helper function used by functions of this API to process function arguments ($tag_name_or_id)
*
* @param string $tag_names_or_ids_csv comma separated **normalized** names or ids of tags
* @return int comma separated ids of the tags
*/
function tag_id_from_string($tag_names_or_ids_csv)
{
$tag_names_or_ids = explode(',', $tag_names_or_ids_csv);
$tag_ids = array();
foreach ($tag_names_or_ids as $name_or_id) {
if (is_numeric($name_or_id)) {
$tag_ids[] = trim($name_or_id);
} elseif (is_string($name_or_id)) {
$tag_ids[] = tag_id($name_or_id);
}
}
$tag_ids_csv = implode(',', $tag_ids);
$tag_ids_csv = str_replace(' ', '', $tag_ids_csv);
return $tag_ids_csv;
}
