diff --git a/dta.zip b/dta.zip
index 5281b7ce18750addae2502aa0df9ed896949b248..bdb9859ebaca4577abcbe870fbff54544d49ca43 100644
Binary files a/dta.zip and b/dta.zip differ
diff --git a/dta/lib.php b/dta/lib.php
index 7b20a632f69190d4be9bd8ea8683779c59f3a9d1..b412fe9b7b9e31cc56aaa7831434f779484bd8ce 100644
--- a/dta/lib.php
+++ b/dta/lib.php
@@ -49,9 +49,7 @@ function assignsubmission_dta_pluginfile(
     require_login($course, false, $cm);
     $itemid = (int)array_shift($args);
     $record = $DB->get_record('assign_submission',
-        [
-		    'id' => $itemid,
-        ],
+        ['id' => $itemid],
         'userid, assignment, groupid',
         MUST_EXIST);
     $userid = $record->userid;
diff --git a/dta/locallib.php b/dta/locallib.php
index c0f9559065e828dbf1b5dc8688d2c8d7ea66eba8..5ff5bcd9ec6b4472710eb71ec1a9c0fc555e553d 100644
--- a/dta/locallib.php
+++ b/dta/locallib.php
@@ -100,9 +100,7 @@ class assign_submission_dta extends assign_submission_plugin {
             self::COMPONENT_NAME,
             self::ASSIGNSUBMISSION_DTA_FILEAREA_TEST,
             0,
-            [
-			    'subdirs' => 0,
-            ]
+            ['subdirs' => 0]
         );
 
         $defaultvalues[self::ASSIGNSUBMISSION_DTA_DRAFT_FILEAREA_TEST] = $draftitemid;
diff --git a/dta/utils/backend.php b/dta/utils/backend.php
index 9d8e17f5291126e73fc1ca0a6547b31381d401d9..8ce7b1ef0180e9f5e0a1ec7b39e3297aa9826078 100644
--- a/dta/utils/backend.php
+++ b/dta/utils/backend.php
@@ -78,10 +78,10 @@ class DtaBackendUtils {
         $url = $backendaddress . "/v1/task";
 
         // Prepare params.
-        $params = array(
+        $params = [
             "taskFile" => $file,
-            "assignmentId" => $assignment->get_instance()->id
-        );
+            "assignmentId" => $assignment->get_instance()->id,
+        ];
 
         return self::post($url, $params);
     }
diff --git a/dta/utils/database.php b/dta/utils/database.php
index 0821d41b3c51628ef971e9efd8a33198bfb065bf..eba6791edae06c71c97bfe5816bba632d3bcb952 100644
--- a/dta/utils/database.php
+++ b/dta/utils/database.php
@@ -14,6 +14,8 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
+defined('MOODLE_INTERNAL') || die();
+
 class DbUtils {
 
     // Summary database table name.
@@ -38,7 +40,7 @@ class DbUtils {
         $summaryrecord = $DB->get_record(self::TABLE_SUMMARY, [
             "assignment_id" => $assignmentid,
             "submission_id" => $submissionid,
-        });
+        ]);
 
         $resultsarray = $DB->get_records(self::TABLE_RESULT, [
             "assignment_id" => $assignmentid,