public function conceptsAction($unit = '1')
{
$this->view->disable();
// Get our context (this takes care of starting the session, too)
$context = $this->getDI()->getShared('ltiContext');
if (!$context->valid) {
echo '[{"error":"Invalid lti context"}]';
return;
}
$concepts = MappingHelper::conceptsInUnit($unit);
$maxPercentage = 0;
$conceptArray = [];
foreach ($concepts as $concept) {
$conceptID = $concept['Lecture Number'];
$historicalConceptMasteryScores = ClassConceptHistory::find(["concept_id = '{$conceptID}'", "order" => 'time_stored DESC']);
$newConcept = ["id" => $conceptID, "title" => $concept["Concept Title"], "history" => []];
foreach ($historicalConceptMasteryScores as $score) {
$newConcept["history"][] = ["date" => $score->time_stored, "average" => $score->average_mastery, "percent" => $score->videopercentage];
}
$newConcept["history"] = $newConcept["history"][0];
if ($newConcept["history"]["percent"] > $maxPercentage) {
$maxPercentage = $newConcept["history"]["percent"];
}
$conceptsArray[] = $newConcept;
}
$firstRow = ["max" => $maxPercentage];
array_unshift($conceptsArray, $firstRow);
echo json_encode($conceptsArray);
}
public function mappingsAction()
{
echo "<pre>";
echo "All units\n";
print_r(MappingHelper::allUnits());
echo "<hr>Concepts in unit 4\n";
print_r(MappingHelper::conceptsInUnit("4"));
echo "<hr>Questions in concept (lecture number) 1\n";
print_r(MappingHelper::questionsInConcept("1"));
echo "<hr>Question info for question 78.4\n";
print_r(MappingHelper::questionInformation("78.4"));
echo "<hr>Videos for concept 9\n";
print_r(MappingHelper::videosForConcept("9"));
echo "<hr>Resources for concept 1\n";
print_r(MappingHelper::resourcesForConcept("1"));
echo "<hr>Concepts within the past 2 weeks: \n";
print_r(MappingHelper::conceptsWithin2Weeks());
}
public function conceptsAction($scope = 'all', $groupingId = '', $debug = false)
{
$this->view->disable();
// Get our context (this takes care of starting the session, too)
$context = $this->getDI()->getShared('ltiContext');
if (!$context->valid) {
echo '[{"error":"Invalid lti context"}]';
return;
}
$result = [];
// Get the list of concepts for the given scope and grouping ID
$concepts = [];
switch ($scope) {
case "concept":
// Get a specific concept
$conceptId = $groupingId;
$concepts = array_filter(MappingHelper::allConcepts(), function ($concept) use($conceptId) {
return $concept["Lecture Number"] == $conceptId;
});
break;
case "unit":
// Filter based on unit
$concepts = MappingHelper::conceptsInUnit($groupingId);
break;
default:
// All concepts
$concepts = MappingHelper::allConcepts();
break;
}
$masteryHelper = new MasteryHelper();
foreach ($concepts as $c) {
$score = $masteryHelper::calculateConceptMasteryScore($context->getUserName(), $c["Lecture Number"], $debug);
$videoPercentage = $masteryHelper::calculateUniqueVideoPercentageForConcept($context->getUserName(), $c["Lecture Number"], $debug);
//$score = rand(0,100) / 10;
//$videoPercentage = rand(0,100);
if ($debug) {
echo "Concept mapping info\n";
print_r($c);
}
$result[] = ["id" => $c["Lecture Number"], "title" => $c["Concept Title"], "masteryScore" => $score, "videoPercentage" => $videoPercentage, "unit" => $c["Unit Number"]];
}
echo json_encode($result);
}
public function dailyMasteryAction()
{
$config = $this->getDI()->getShared('config');
if (!isset($_GET["p"])) {
die("No history saver password provided.");
}
if ($_GET["p"] != $config->historySaverPassword) {
die("Invalid history saver password provided.");
}
ini_set('max_execution_time', 300);
set_time_limit(300);
// We want to time this
$startTime = microtime(true);
$debug = false;
$classHelper = new ClassHelper();
$masteryHelper = new MasteryHelper();
$studentIds = $classHelper->allStudents();
//$studentIds = ["John Logie Baird"];
// Calculate an overall mastery score for these units, as well as an average for concepts over the past 2 weeks
$units = ["1", "2", "3", "4", "recent"];
// Go through each student and calculate unit mastery scores
foreach ($studentIds as $studentId) {
// See if we've already scored mastery scores for this student on the current day (this script just runs multiple times, until a better method to get around 60 second execution time limit is devised)
$studentId = str_replace("'", "", $studentId);
$lastHistory = StudentMasteryHistory::findFirst(["email = '{$studentId}'", "order" => "time_stored DESC"]);
if (date("Y-m-d") == date("Y-m-d", strtotime($lastHistory->time_stored))) {
echo " History already saved today for {$studentId}\n";
continue;
}
$scores = [];
foreach ($units as $unit) {
// We fetch recent concepts differently from the rest of the units
if ($unit == "recent") {
$concepts = MappingHelper::conceptsWithin2Weeks();
} else {
$concepts = MappingHelper::conceptsInUnit($unit);
}
$unitScore = 0;
foreach ($concepts as $c) {
$unitScore += $masteryHelper::calculateConceptMasteryScore($studentId, $c, $debug);
}
$unitScore = $unitScore / count($concepts);
$scores[$unit] = $unitScore;
}
if ($debug) {
echo "Scores for student {$studentId} \n";
print_r($scores);
}
$history = new StudentMasteryHistory();
$history->email = $studentId;
$history->unit1 = $scores["1"];
$history->unit2 = $scores["2"];
$history->unit3 = $scores["3"];
$history->unit4 = $scores["4"];
$history->recent_average = $scores["recent"];
if ($history->create() == false) {
echo "*** Error saving mastery history for {$studentId}\n";
} else {
echo " Successfully saved history for {$studentId}\n";
}
}
// Print total time taken
$endTime = microtime(true);
echo "Execution time: " . ($endTime - $startTime) . " seconds\n";
}
public function masteryGraphAction($scope = 'all', $groupingId = '', $debug = false)
{
$this->view->disable();
// Get our context (this takes care of starting the session, too)
$context = $this->getDI()->getShared('ltiContext');
if (!$context->valid) {
echo '[{"error":"Invalid lti context"}]';
return;
}
$result = [];
// Get the list of concepts for the given scope and grouping ID
$concepts = [];
switch ($scope) {
case "unit":
// Filter based on unit
$concepts = MappingHelper::conceptsInUnit($groupingId);
break;
default:
// All concepts
$concepts = MappingHelper::allConcepts();
break;
}
$masteryHelper = new MasteryHelper();
foreach ($concepts as $c) {
$score = $masteryHelper::calculateConceptMasteryScore($context->getUserName(), $c["Lecture Number"], $debug);
if ($debug) {
echo "Concept mapping info\n";
print_r($c);
}
$result[] = ["id" => $c["Lecture Number"], "display" => $c["Concept Title"], "score" => $score, "unit" => $c["Unit Number"]];
}
echo json_encode($result);
}
