PHP LTIX::sessionGet方法代碼示例

 /**
  * Set all of the the link-level settings.
  *
  * @param $keyvals An array of key/value pairs that is serialized
  * in JSON and stored.  If this is an empty array, this effectively
  * empties out all the settings.
  */
 public static function linkSetAll($keyvals)
 {
     global $CFG, $PDOX, $LINK;
     global $settingsDebugArray;
     $settingsDebugArray = array();
     $json = json_encode($keyvals);
     $q = $PDOX->queryDie("UPDATE {$CFG->dbprefix}lti_link \n                SET settings = :SET WHERE link_id = :LID", array(":SET" => $json, ":LID" => $LINK->id));
     $settingsDebugArray[] = array(count($keyvals) . " settings updated link_id=" . $LINK->id);
     if (isset($_SESSION['lti'])) {
         $_SESSION['lti']['link_settings'] = $json;
         unset($_SESSION['lti']['link_settings_merge']);
     }
     $settings_url = LTIX::sessionGet('link_settings_url', false);
     if ($settings_url === false) {
         return;
     }
     $settingsDebugArray[] = array("Sending settings to " . $settings_url);
     $retval = LTIX::settingsSend($keyvals, $settings_url, $settingsDebugArray);
 }

    function doAnalytics()
    {
        global $CFG;
        if ($CFG->universal_analytics) {
            ?>
            <script>
              (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
              (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
              m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
              })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
 
              ga('create', '<?php 
            echo $CFG->universal_analytics;
            ?>
', 'auto');
              ga('send', 'pageview');
 
            </script>
	<?php 
        }
        if ($CFG->analytics_key) {
            ?>
    <script type="text/javascript">
      var _gaq = _gaq || [];
      _gaq.push(['_setAccount', '<?php 
            echo $CFG->analytics_key;
            ?>
']);
      _gaq.push(['_trackPageview']);

      (function() {
        var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
        // ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
        ga.src = ('https:' == document.location.protocol ? 'https://' : 'http://') + 'stats.g.doubleclick.net/dc.js';

        var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
      })();

    <?php 
            if (LTIX::sessionGet('key_key')) {
                echo "_gaq.push(['_setCustomVar', 1, 'consumer_key', '" . $_SESSION['lti']['key_key'] . "', 2]);\n";
            }
            if (LTIX::sessionGet('context_id')) {
                echo "_gaq.push(['_setCustomVar', 2, 'context_id', '" . $_SESSION['lti']['context_id'] . "', 2]);\n";
            }
            if (LTIX::sessionGet('context_title')) {
                echo "_gaq.push(['_setCustomVar', 3, 'context_title', '" . $_SESSION['lti']['context_title'] . "', 2]);\n";
            }
            echo "</script>\n";
        }
        // if analytics is on...
    }

<?php

require_once "../../config.php";
require_once $CFG->dirroot . "/pdo.php";
require_once $CFG->dirroot . "/lib/lms_lib.php";
require_once $CFG->dirroot . "/core/gradebook/lib.php";
use Tsugi\Core\LTIX;
use Tsugi\Util\LTI;
use Tsugi\Util\Caliper;
// Retrieve the launch data if present
$LTI = LTIX::requireData();
$p = $CFG->dbprefix;
$displayname = $USER->displayname;
if (isset($_POST['caliper'])) {
    $caliper = Caliper::sensorCanvasPageView(LTIX::sessionGet('user_key'), $CFG->wwwroot, "samples/grade/index.php");
    $_SESSION['caliper'] = $caliper;
    $debug_log = array();
    $retval = LTIX::caliperSend($caliper, 'application/json', $debug_log);
    /*
    echo("<pre>\n");
    var_dump($caliper);
    echo("</pre>\n");
    die();
    */
    if ($retval) {
        $_SESSION['success'] = "Caliper sent.";
    } else {
        $_SESSION['error'] = "Caliper attempt failed.";
    }
    $_SESSION['debuglog'] = $debug_log;
    header('Location: ' . addSession('index.php'));

 /**
  * Send a grade and update our local copy
  *
  * Call the right LTI service to send a new grade up to the server.
  * update our local cached copy of the server_grade and the date
  * retrieved. This routine pulls the key and secret from the LTIX
  * session to avoid crossing cross tennant boundaries.
  *
  * @param $grade A new grade - floating point number between 0.0 and 1.0
  * @param $row An optional array with the data that has the result_id, sourcedid,
  * and service (url) if this is not present, the data is pulled from the LTI
  * session for the current user/link combination.
  * @param $debug_log An (optional) array (by reference) that returns the
  * steps that were taken.
  * Each entry is an array with the [0] element a message and an optional [1]
  * element as some detail (i.e. like a POST body)
  *
  * @return mixed If this works it returns true.  If not, you get
  * a string with an error.
  *
  */
 public function gradeSend($grade, $row = false, &$debug_log = false)
 {
     global $CFG, $USER;
     global $LastPOXGradeResponse;
     $LastPOXGradeResponse = false;
     $PDOX = LTIX::getConnection();
     // Secret and key from session to avoid crossing tenant boundaries
     $key_key = LTIX::sessionGet('key_key');
     $secret = LTIX::sessionGet('secret');
     if ($row !== false) {
         $result_url = isset($row['result_url']) ? $row['result_url'] : false;
         $sourcedid = isset($row['sourcedid']) ? $row['sourcedid'] : false;
         $service = isset($row['service']) ? $row['service'] : false;
         // Fall back to session if it is missing
         if ($service === false) {
             $service = LTIX::sessionGet('service');
         }
         $result_id = isset($row['result_id']) ? $row['result_id'] : false;
     } else {
         $result_url = LTIX::sessionGet('result_url');
         $sourcedid = LTIX::sessionGet('sourcedid');
         $service = LTIX::sessionGet('service');
         $result_id = LTIX::sessionGet('result_id');
     }
     // Update result in the database and in the LTI session area and
     // our local copy
     $_SESSION['lti']['grade'] = $grade;
     $this->grade = $grade;
     // Update the local copy of the grade in the lti_result table
     if ($PDOX !== false && $result_id !== false) {
         $stmt = $PDOX->queryReturnError("UPDATE {$CFG->dbprefix}lti_result SET grade = :grade,\n                    updated_at = NOW() WHERE result_id = :RID", array(':grade' => $grade, ':RID' => $result_id));
         if ($stmt->success) {
             $msg = "Grade updated result_id=" . $result_id . " grade={$grade}";
         } else {
             $msg = "Grade NOT updated result_id=" . $result_id . " grade={$grade}";
         }
         error_log($msg);
         if (is_array($debug_log)) {
             $debug_log[] = array($msg);
         }
     }
     if ($key_key == false || $secret === false || $sourcedid === false || $service === false || !isset($USER)) {
         error_log("Result::gradeSend stored data locally");
         return false;
     }
     // TODO: Fix this
     $comment = "";
     if (strlen($result_url) > 0) {
         $status = LTI::sendJSONGrade($grade, $comment, $result_url, $key_key, $secret, $debug_log);
     } else {
         $status = LTI::sendPOXGrade($grade, $sourcedid, $service, $key_key, $secret, $debug_log);
     }
     if ($status === true) {
         $msg = 'Grade sent ' . $grade . ' to ' . $sourcedid . ' by ' . $USER->id;
         if (is_array($debug_log)) {
             $debug_log[] = array($msg);
         }
         error_log($msg);
     } else {
         $msg = 'Grade failure ' . $grade . ' to ' . $sourcedid . ' by ' . $USER->id;
         if (is_array($debug_log)) {
             $debug_log[] = array($msg);
         }
         error_log($msg);
         return $status;
     }
     return $status;
 }

    function doAnalytics()
    {
        global $CFG;
        if ($CFG->analytics_key) {
            ?>
    <script type="text/javascript">
      var _gaq = _gaq || [];
      _gaq.push(['_setAccount', '<?php 
            echo $CFG->analytics_key;
            ?>
']);
      _gaq.push(['_trackPageview']);

      (function() {
        var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
        // ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
        ga.src = ('https:' == document.location.protocol ? 'https://' : 'http://') + 'stats.g.doubleclick.net/dc.js';

        var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
      })();

    <?php 
            if (LTIX::sessionGet('key_key')) {
                echo "_gaq.push(['_setCustomVar', 1, 'consumer_key', '" . $_SESSION['lti']['key_key'] . "', 2]);\n";
            }
            if (LTIX::sessionGet('context_id')) {
                echo "_gaq.push(['_setCustomVar', 2, 'context_id', '" . $_SESSION['lti']['context_id'] . "', 2]);\n";
            }
            if (LTIX::sessionGet('context_title')) {
                echo "_gaq.push(['_setCustomVar', 3, 'context_title', '" . $_SESSION['lti']['context_title'] . "', 2]);\n";
            }
            echo "</script>\n";
        }
        // if analytics is on...
    }