/**
* Generates an array of surveys that a teacher hasn't created a link for.
* @return array 2-dimensional array - every element contains 2 subelements (id, name)
*/
public function get_not_created_links()
{
if (empty($this->course_code)) {
die('Error in get_not_created_links() : course code not set');
}
$tbl_grade_links = Database::get_main_table(TABLE_MAIN_GRADEBOOK_LINK);
$sql = 'SELECT survey_id, title, code
FROM ' . $this->get_survey_table() . ' AS srv
WHERE survey_id NOT IN
(SELECT ref_id FROM ' . $tbl_grade_links . '
WHERE type = ' . LINK_SURVEY . " AND course_code = '" . $this->get_course_code() . "'" . ') AND srv.session_id=' . api_get_session_id() . '';
$result = Database::query($sql);
$links = array();
while ($data = Database::fetch_array($result)) {
$links[] = array($data['survey_id'], api_trunc_str($data['code'] . ': ' . self::html_to_text($data['title']), 80));
}
return $links;
}
/**
* Return the interactions as an array for the given lp_iv_id.
* This method can be used as static.
* @param integer Learnpath Item View ID
* @return array
* @todo Transcode labels instead of switching to HTML (which requires to know the encoding of the LP)
*/
function get_iv_interactions_array($lp_iv_id = 0)
{
$charset = api_get_setting('platform_charset');
$list = array();
$table = Database::get_course_table(TABLE_LP_IV_INTERACTION);
$sql = "SELECT * FROM {$table} WHERE lp_iv_id = {$lp_iv_id} ORDER BY order_id ASC";
$res = Database::query($sql, __FILE__, __LINE__);
$num = Database::num_rows($res);
if ($num > 0) {
$list[] = array("order_id" => api_htmlentities(get_lang('Order'), ENT_QUOTES, $charset), "id" => api_htmlentities(get_lang('InteractionID'), ENT_QUOTES, $charset), "type" => api_htmlentities(get_lang('Type'), ENT_QUOTES, $charset), "time" => api_htmlentities(get_lang('TimeFinished'), ENT_QUOTES, $charset), "correct_responses" => api_htmlentities(get_lang('CorrectAnswers'), ENT_QUOTES, $charset), "student_response" => api_htmlentities(get_lang('StudentResponse'), ENT_QUOTES, $charset), "result" => api_htmlentities(get_lang('Result'), ENT_QUOTES, $charset), "latency" => api_htmlentities(get_lang('LatencyTimeSpent'), ENT_QUOTES, $charset));
while ($row = Database::fetch_array($res)) {
$list[] = array("order_id" => $row['order_id'] + 1, "id" => urldecode($row['interaction_id']), "type" => $row['interaction_type'], "time" => $row['completion_time'], "correct_responses" => '', "student_response" => api_trunc_str($row['student_response'], 50), "result" => $row['result'], "latency" => $row['latency']);
}
}
return $list;
}
/**
* @deprecated use api_trunc_str() instead.
*/
function shorten($input, $length = 15, $encoding = null)
{
$length = intval($length);
if (!$length) {
$length = 15;
}
return api_trunc_str($input, $length, '...', false, $encoding);
}