Merge branch 'develop' of https://git.minedu.gov.gr/itminedu/e-epal into front_end_review

Code update

drupal/modules/epal/epal.routing.yml

@@ -7,7 +7,7 @@ epal.user.send_verification_code:
   requirements:
     _user_is_logged_in: 'TRUE'
 epal.user.verify_verification_code:
-  path: '/epal/user/verifyvercode' 
+  path: '/epal/user/verifyvercode'
   options:
     _auth: [ 'basic_auth' ]
   defaults:
@@ -148,7 +148,7 @@ epal.ministry.general_report:
     _controller: '\Drupal\epal\Controller\ReportsCreator::makegGeneralReport'
   requirements:
       _user_is_logged_in: 'TRUE'
-epal.ministry.report1:
+epal.ministry.report-completeness:
   path: '/ministry/report-completeness'
   options:
     _auth: [ 'basic_auth' ]
@@ -156,6 +156,22 @@ epal.ministry.report1:
     _controller: '\Drupal\epal\Controller\ReportsCreator::makeReportCompleteness'
   requirements:
       _user_is_logged_in: 'TRUE'
+epal.ministry.report-all-stat:
+  path: '/ministry/report-all-stat'
+  options:
+    _auth: [ 'basic_auth' ]
+  defaults:
+    _controller: '\Drupal\epal\Controller\ReportsCreator::makeReportAllStat'
+  requirements:
+      _user_is_logged_in: 'TRUE'
+epal.ministry.massive_mail:
+  path: '/ministry/send-massive-mail'
+  options:
+    _auth: [ 'basic_auth' ]
+  defaults:
+    _controller: '\Drupal\epal\Controller\InformUnlocatedStudents::sendMailToStudents'
+  requirements:
+      _user_is_logged_in: 'TRUE'
 regionview:
   path: '/epal/ScoolperPerf/{perfectureId}'
   options:
@@ -171,4 +187,4 @@ coursesperschools:
   defaults:
     _controller: '\Drupal\epal\Controller\DirectorView::getCoursesPerSchool'
   requirements:
-    _user_is_logged_in: 'TRUE'
\ No newline at end of file
+    _user_is_logged_in: 'TRUE'

drupal/modules/epal/src/Controller/CreateDemoData.php

@@ -36,7 +36,7 @@ class CreateDemoData extends ControllerBase {
 			$this->entityTypeManager = $entityTypeManager;
 			$this->entity_query = $entity_query;
 			$this->connection = $connection;
-			//$this->logger = $loggerChannel->get('oauthost');
+			$this->logger = $loggerChannel->get('epal');
     }
 
 	public static function create(ContainerInterface $container)
@@ -64,19 +64,20 @@ class CreateDemoData extends ControllerBase {
 
 	public function createData() {
 
-        $transaction = $this->connection->startTransaction();
+    $transaction = $this->connection->startTransaction();
+
 		try {
 			//insert demo records in entity: epal_student
 			$entity_manager = \Drupal::entityTypeManager();
 
 			$epaluserid = \Drupal::currentUser()->id();
 
-			for ($i = 1; $i <= 10000; $i++) {
+			for ($i = 1; $i <= 500; $i++) {
 				//srand($this->make_seed());
 
-				//$curclass = rand(1,3);
-				$curclass = 1;
-				$currentepal = rand(147,156);
+			  $curclass = rand(1,3);
+				//$curclass = 2;
+				$currentepal = rand(137,165);
 
 				$student = array(
 					//'epaluser_id' => $aitisi[0][epaluser_id],
@@ -84,22 +85,33 @@ class CreateDemoData extends ControllerBase {
 					'name' => "firstname" . $i,
 					'studentsurname' => "surname" . $i,
 					//'birthdate' => $aitisi[0][birthdate],
+					'birthdate' => '01/01/1970',
 					//'fatherfirstname' => $aitisi[0][fatherfirstname],
+					'fatherfirstname' => "fatherfirstname" . $i,
 					//'fathersurname' => $aitisi[0][fathersurname],
+					'fathersurname' => "fathersurname" . $i,
 					//'motherfirstname' => $aitisi[0][motherfirstname],
+					'motherfirstname' => "motherfirstname" . $i,
 					//'mothersurname' => $aitisi[0][mothersurname],
+					'mothersurname' => "mothersurname" . $i,
 					//'studentamka' => $aitisi[0][studentamka],
 					//'regionaddress' => $aitisi[0][regionaddress],
+					'regionaddress' => "regionaddress" . $i,
 					//'regionarea' => $aitisi[0][regionarea],
+					'regionarea' => "regionarea" . $i,
 					//'regiontk' => $aitisi[0][regiontk],
+					'regiontk' => "tk" . $i,
 					//'certificatetype' => $aitisi[0][certificatetype],
+					'certificatetype' => 'Απολυτήριο Γυμνασίου',
 					//'lastam' => $aitisi[0][lastam],
 					'currentclass' => $curclass,
-					'currentepal' => $currentepal
+					'currentepal' => $currentepal,
 					//'currentsector' => $aitisi[0][currentsector],
 					//'relationtostudent' => $aitisi[0][relationtostudent],
+					'relationtostudent' => 'Μαθητής',
 					//'telnum' => $aitisi[0][telnum],
-					//'moria' => rand(0,10)
+					'telnum' => '6944123456',
+					'points' => rand(0,20)
         );
 
 				$entity_storage_student = $entity_manager->getStorage('epal_student');
@@ -109,85 +121,141 @@ class CreateDemoData extends ControllerBase {
 				$created_student_id = $entity_object->id();
 
 
-				//insert demo records in entity: epal_student_epal_chosen
 
-				//$epal_id = rand(147,149);	//TO BE REMOVED
+				//insert records in entity: 	epal_student_course_field (αφορά μαθητές Γ' Λυκείου)
+				//						or:		epal_student_sector_field (αφορά μαθητές Β' Λυκείου)
+				$availableSchools  = array();
 
-				$numEpalsChosen = rand(1,3);
-				$epal_id = $this->UniqueRandNum(147,156,$numEpalsChosen);
-				//for ($j = 1; $j <= $numEpalsChosen ; $j++) {
-					if ($curclass === 2 || $curclass === 3) {
-						//33% των μαθητών της Β' και Γ' Λυκείου δηλώνουν προτίμηση στο σχολείο που ήδη φοιτούν
-						if (rand(1,3) === 1) {
-
-							$epal_id[0] = $currentepal;
-							//$epal_id = array($currentepal ,$currentepal, $currentepal);
+				if ($curclass === 3)	{
+
+					do {
+						$coursefield_id = rand(1,54);
+						$course = array(
+							'student_id' => $created_student_id,
+							'coursefield_id' => $coursefield_id
+						);
+
+						$entity_storage_course = $entity_manager->getStorage('epal_student_course_field');
+						$entity_object = $entity_storage_course->create($course);
+						//$entity_storage_course->save($entity_object);
+
+						//εύρεση ΕΠΑΛ που διαθέτουν την αντίστοιχη ειδικότητα
+						print_r("<br> EIDIKOTHTA: " . $coursefield_id);
+						$eepalSpecialtiesInEpal_storage = $this->entityTypeManager->getStorage('eepal_specialties_in_epal');
+						//$eepalSpecialtiesInEpal = $eepalSpecialtiesInEpal_storage->loadByProperties(array('specialty_id' => $coursefield_id) );
+
+						$ids  =  $eepalSpecialtiesInEpal_storage->getQuery()
+							->condition('specialty_id', $coursefield_id, "=")
+							->condition('epal_id', 137, ">=")
+							->condition('epal_id', 165, "<=")
+							->execute();
+						$eepalSpecialtiesInEpal = $eepalSpecialtiesInEpal_storage->loadMultiple($ids);
+
+						print_r("<br> NUM_SCHOOLS: " . sizeof($eepalSpecialtiesInEpal));
+
+						foreach ($eepalSpecialtiesInEpal as $eepalSpecialInEp)	{
+							array_push($availableSchools, $eepalSpecialInEp->epal_id->getString());
 						}
-						else {
-							//$epal_id = rand(147,149);
 
+						if (sizeof($availableSchools) != 0)
+							$entity_storage_course->save($entity_object);
+					}	//end do
+					while (sizeof($availableSchools) == 0);
+
+					$entity_storage_course->resetCache();
+					$eepalSpecialtiesInEpal_storage->resetCache();
+				}
+
+				else if ($curclass === 2)	{
+
+					do {
+						$sectorfield_id = rand(1,9);
+						$sector = array(
+							'student_id' => $created_student_id,
+							'sectorfield_id' => $sectorfield_id
+						);
 
-							//print_r("<br>". $epal_id[0] . $epal_id[1] . $epal_id[2]);
+						$entity_storage_sector = $entity_manager->getStorage('epal_student_sector_field');
+						$entity_object = $entity_storage_sector->create($sector);
+						//$entity_storage_sector->save($entity_object);
+
+						//εύρεση ΕΠΑΛ που διαθέτουν τον αντίστοιχο τομέα
+						print_r("<br> TOMEAS: " . $sectorfield_id);
+						$eepalSectorsInEpal_storage = $this->entityTypeManager->getStorage('eepal_sectors_in_epal');
+
+						$ids  =  $eepalSectorsInEpal_storage->getQuery()
+							->condition('sector_id', $sectorfield_id, "=")
+							->condition('epal_id', 137, ">=")
+							->condition('epal_id', 165, "<=")
+							->execute();
+						$eepalSectorsInEpal = $eepalSectorsInEpal_storage->loadMultiple($ids);
+
+						print_r("<br> NUM_SCHOOLS: " . sizeof($eepalSectorsInEpal));
+
+						foreach ($eepalSectorsInEpal as $eepalSecInEp)	{
+							array_push($availableSchools, $eepalSecInEp->epal_id->getString());
 						}
-					}
+						if (sizeof($availableSchools) != 0)
+							$entity_storage_sector->save($entity_object);
+					}	//end do
+					while (sizeof($availableSchools) == 0);
 
+					$entity_storage_sector->resetCache();
+					$eepalSectorsInEpal_storage->resetCache();
+				}
+
+				else if ($curclass === 1)	{
+					print_r("<br> CLASS A: ");
+					$school_id_start = 137;
+					for ($l=0; $l < 29; $l++)
+						array_push($availableSchools, $school_id_start + $l);
+				}
+
+				$numEpalsChosen = rand(1,3);
+				if ($numEpalsChosen > sizeof($availableSchools))
+					$numEpalsChosen =  sizeof($availableSchools);
+				print_r("<br> NUM_EPAL_CHOSEN " . $numEpalsChosen);
+
+				$epal_id_index = $this->UniqueRandNum(0,sizeof($availableSchools)-1,$numEpalsChosen);
+				for ($j=0; $j < $numEpalsChosen; $j++)	{
+					print_r("<br> EPAL_CHOSEN_ID: " . $epal_id_index[$j]);
+					print_r("<br> EPAL_CHOSEN_REAL_ID: " . $availableSchools[$epal_id_index[$j]]);
+				}
 
 				for ($j = 0; $j < $numEpalsChosen ; $j++) {
-//					print_r("<br>Data: Student" . $created_student_id . "EPAL" . $epal_id . "CHOICE"  . $j );
 						$epalchosen = array(
 							'student_id' => $created_student_id,
-							'epal_id' => $epal_id[$j],
+							'epal_id' => $availableSchools[$epal_id_index[$j]],
 							'choice_no' => $j+1
 						);
-						//print_r("<br>Test1");
 						$entity_storage_epalchosen = $entity_manager->getStorage('epal_student_epal_chosen');
-						//print_r("<br>Test2");
 						$entity_object = $entity_storage_epalchosen->create($epalchosen);
-						//print_r("<br>Test3");
 						$entity_storage_epalchosen->save($entity_object);
-						//print_r("<br>Test4");
 				}
 
+				$entity_storage_epalchosen->resetCache();
+				$entity_storage_student->resetCache();
 
-				//insert records in entity: 	epal_student_course_field (αφορά μαθητές Γ' Λυκείου)
-				//						or:		epal_student_sector_field (αφορά μαθητές Β' Λυκείου)
-				if ($curclass === 3)	{
-					$course = array(
-						//'name' => $aitisi[3][name],
-						//'student_id' => $aitis[3][student_i],
-						'student_id' => $created_student_id,
-						'coursefield_id' => rand(1,54)
-					);
-
-					$entity_storage_course = $entity_manager->getStorage('epal_student_course_field');
-					$entity_object = $entity_storage_course->create($course);
-					$entity_storage_course->save($entity_object);
-				}
 
-				else if ($curclass === 2)	{
-					$sector = array(
-						//'name' => $aitisi[3][name],
-						'student_id' => $created_student_id,
-						//'student_id' => $aitis[3][student_i],
-						'sectorfield_id' => rand(1,9)
-					);
-
-					$entity_storage_sector = $entity_manager->getStorage('epal_student_sector_field');
-					$entity_object = $entity_storage_sector->create($sector);
-					$entity_storage_sector->save($entity_object);
+				/*
+				//TO BE CONSIDERED
+				if ($curclass === 2 || $curclass === 3) {
+					//33% των μαθητών της Β' και Γ' Λυκείου δηλώνουν προτίμηση στο σχολείο που ήδη φοιτούν
+					if (rand(1,3) === 1) {
+						$epal_id[0] = $currentepal;
+					}
 				}
-
-
+				*/
 
 		}
 	}
 
 	catch (\Exception $e) {
-			//$this->logger->warning($e->getMessage());
+			$this->logger->warning($e->getMessage());
 
 			$returnmsg = "Αποτυχία καταχώρησης demo data!";
 			$response = new JsonResponse([$returnmsg]);
-            $transaction->rollback();
+    //  $transaction->rollback();
 			return $response;
 	}
 

drupal/modules/epal/src/Controller/Distribution.php

@@ -24,8 +24,6 @@ use Drupal\Core\TypedData\Plugin\DataType\TimeStamp;
 
 use Drupal\Core\Language\LanguageManagerInterface;
 
-
-
 class Distribution extends ControllerBase {
 
 	protected $entity_query;
@@ -112,7 +110,8 @@ class Distribution extends ControllerBase {
 			//initialize/empty epal_student_class if there are already data in it!
 			$this->connection->delete('epal_student_class')->execute();
 
-			$limitUp_class = $this->retrieveCapacityLimitUp("Α");
+			//$limitUp_class = $this->retrieveCapacityLimitUp("Α");
+			$limitUp_class = $this->retrieveCapacityLimitUp("1");
 			//print_r("<br> ΑΝΩΤΑΤΟ ΟΡΙΟ ΜΑΘΗΤΩΝ: " . $limitUp_class);
 
 			while ($this->choice_id <= $numDistributions)	 {
@@ -575,6 +574,7 @@ class Distribution extends ControllerBase {
 																	->condition('eStudent.id', $studentIds, 'NOT IN');
 				$numNoAllocated = $sCon->countQuery()->execute()->fetchField();
 
+				/*
 				$list[] = array(
 					 'num_applications' => $numTotal,
 				 	 'numchoice1' => $numData[0],
@@ -582,6 +582,26 @@ class Distribution extends ControllerBase {
 					 'numchoice3' => $numData[2],
 					 'num_noallocated' => $numNoAllocated,
 				 );
+				*/
+
+
+
+				 $list = array();
+
+				 //$record = new generalReportSchema;
+				 //$record->name = "nikos";
+				 //$record->numStudents = 20;
+
+				 array_push($list,(object) array('name' => "Αριθμός Αιτήσεων", 'numStudents' => $numTotal));
+				 // $record = (object) array('name' => "Αριθμός Αιτήσεων:", 'numStudents' => $numTotal);
+				 array_push($list,(object) array('name' => "Αριθμός μαθητών που τοποθετήθηκαν στην πρώτη τους προτίμηση", 'numStudents' => $numData[0]));
+				 //$record = (object) array('name' => "Αριθμός μαθητών που τοποθετήθηκαν στην πρώτη τους προτίμηση:", 'numStudents' => $numData[0]);
+				 array_push($list,(object) array('name' => "Αριθμός μαθητών που τοποθετήθηκαν στην δεύτερή τους προτίμηση", 'numStudents' => $numData[1]));
+				 //$record = (object) array('name' => "Αριθμός μαθητών που τοποθετήθηκαν στην δεύτερή τους προτίμηση:", 'numStudents' => $numData[1]);
+				 array_push($list,(object) array('name' => "Αριθμός μαθητών που τοποθετήθηκαν στην τρίτη τους προτίμηση", 'numStudents' => $numData[2]));
+				 //$record = (object) array('name' => "Αριθμός μαθητών που τοποθετήθηκαν στην τρίτη τους προτίμηση:", 'numStudents' => $numData[2]);
+				 array_push($list,(object) array('name' => "Αριθμός μαθητών που δεν τοποθετήθηκαν σε καμμία τους προτίμηση", 'numStudents' => $numNoAllocated));
+				 //$record = (object) array('name' => "Αριθμός μαθητών που δεν τοποθετήθηκαν σε καμμία τους προτίμηση:", 'numStudents' => $numNoAllocated);
 
 				 return $this->respondWithStatus(
 								 $list
@@ -599,5 +619,72 @@ class Distribution extends ControllerBase {
 
 
 
+		/*
+		public function makeReport1(Request $request) {
+
+			try  {
+				if (!$request->isMethod('GET')) {
+					 return $this->respondWithStatus([
+							"message" => t("Method Not Allowed")
+							 ], Response::HTTP_METHOD_NOT_ALLOWED);
+				}
+
+				//user validation
+				$authToken = $request->headers->get('PHP_AUTH_USER');
+				$users = $this->entityTypeManager->getStorage('user')->loadByProperties(array('name' => $authToken));
+				$user = reset($users);
+				if (!$user) {
+						return $this->respondWithStatus([
+										'message' => t("User not found"),
+								], Response::HTTP_FORBIDDEN);
+				}
+
+				//user role validation
+				$roles = $user->getRoles();
+				$validRole = false;
+				foreach ($roles as $role)
+					if ($role === "ministry") {
+						$validRole = true;
+						break;
+					}
+				if (!$validRole) {
+						return $this->respondWithStatus([
+										'message' => t("User Invalid Role"),
+								], Response::HTTP_FORBIDDEN);
+				}
+
+				$list = array();
+
+				$sCon = $this->connection->select('eepal_school_field_data', 'eSchool')
+																	->fields('eSchool', array('id', 'name'));
+				$epalSchools = $sCon->execute()->fetchAll(\PDO::FETCH_OBJ);
+				//$schoolIds = array();
+				foreach ($epalSchools as $epalSchool)	{
+					//array_push($schoolIds, $schoolId->id);
+					$sCon = $this->connection->select('epal_student_class', 'eStudent')
+																		->fields('eStudent', array('id', 'epal_id'))
+																		->condition('eStudent.epal_id', $epalSchool->id , '=');
+					$num = $sCon->countQuery()->execute()->fetchField();
+					if ($num !== "0")
+						array_push($list,(object) array('schoolName' => $epalSchool->name, 'numStudents' => $num));
+				}
+
+				 return $this->respondWithStatus(
+								 $list
+						 , Response::HTTP_OK);
+			}	 //end try
+
+			catch (\Exception $e) {
+				$this->logger->warning($e->getMessage());
+				return $this->respondWithStatus([
+							"message" => t("An unexpected problem occured in makeReport1 Method")
+						], Response::HTTP_INTERNAL_SERVER_ERROR);
+			}
+
+		}
+		*/
+
+
+
 
 }

drupal/modules/epal/src/Controller/InformUnlocatedStudents.php

+<?php
+/**
+ * @file
+ * Contains \Drupal\query_example\Controller\QueryExampleController.
+ */
+
+namespace Drupal\epal\Controller;
+
+use Drupal\Core\Entity\Query\QueryFactory;
+use Drupal\Core\Entity\EntityTypeManagerInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Drupal\Core\Controller\ControllerBase;
+
+use Symfony\Component\HttpFoundation\RedirectResponse;
+use Drupal\Core\Database\Database;
+use Drupal\Core\Database\Connection;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Drupal\Core\Logger\LoggerChannelFactoryInterface;
+
+//use Drupal\Core\Datetime\DrupalDateTime;
+use Drupal\Core\TypedData\Plugin\DataType\TimeStamp;
+
+use Drupal\Core\Language\LanguageManagerInterface;
+
+class InformUnlocatedStudents extends ControllerBase {
+
+	protected $entity_query;
+  protected $entityTypeManager;
+  protected $logger;
+  protected $connection;
+
+	public function __construct(
+		EntityTypeManagerInterface $entityTypeManager,
+		QueryFactory $entity_query,
+		Connection $connection,
+
+		LoggerChannelFactoryInterface $loggerChannel)
+		{
+			$this->entityTypeManager = $entityTypeManager;
+			$this->entity_query = $entity_query;
+			$connection = Database::getConnection();
+			$this->connection = $connection;
+			$this->logger = $loggerChannel->get('epal');
+    }
+
+	public static function create(ContainerInterface $container)
+    {
+        return new static(
+          $container->get('entity_type.manager'),
+          $container->get('entity.query'),
+          $container->get('database'),
+          $container->get('logger.factory')
+      );
+    }
+
+
+	public function sendMailToStudents(Request $request) {
+
+		 try {
+				if (!$request->isMethod('GET')) {
+					 return $this->respondWithStatus([
+							"message" => t("Method Not Allowed")
+							 ], Response::HTTP_METHOD_NOT_ALLOWED);
+				}
+
+				//user validation
+				$authToken = $request->headers->get('PHP_AUTH_USER');
+				$users = $this->entityTypeManager->getStorage('user')->loadByProperties(array('name' => $authToken));
+				$user = reset($users);
+				if (!$user) {
+						return $this->respondWithStatus([
+										'message' => t("User not found"),
+								], Response::HTTP_FORBIDDEN);
+				}
+
+				//user role validation
+				$roles = $user->getRoles();
+				$validRole = false;
+				foreach ($roles as $role)
+					if ($role === "ministry") {
+						$validRole = true;
+						break;
+					}
+				if (!$validRole) {
+						return $this->respondWithStatus([
+										'message' => t("User Invalid Role"),
+								], Response::HTTP_FORBIDDEN);
+				}
+
+				// εύρεση μαθητών που η αίτησή τους ΔΕΝ ικανοποιήθηκε
+				$sCon = $this->connection->select('epal_student_class', 'eStudent')
+																	->fields('eStudent', array('student_id'));
+				$epalStudents = $sCon->execute()->fetchAll(\PDO::FETCH_OBJ);
+				$studentIds = array();
+				foreach ($epalStudents as $epalStudent)
+					array_push($studentIds, $epalStudent->student_id);
+				$sCon = $this->connection->select('epal_student', 'eStudent')
+																	->fields('eStudent', array('id', 'user_id', 'created'))
+																	->condition('eStudent.id', $studentIds, 'NOT IN');
+				//$numNoAllocated = $sCon->countQuery()->execute()->fetchField();
+				$epalNonLocatedStudents = $sCon->execute()->fetchAll(\PDO::FETCH_OBJ);
+
+				$cnt_success = 0;
+				$cnt_fail = 0;
+				foreach ($epalNonLocatedStudents as $epalNonLocatedStudent)	{
+					$epalUsers = $this->entityTypeManager->getStorage('epal_users')->loadByProperties(array('user_id' => $epalNonLocatedStudent->user_id));
+					$epalUser = reset($epalUsers);
+
+					if ($epalUser) {
+	            $user = $this->entityTypeManager->getStorage('user')->load($epalUser->user_id->target_id);
+							//$users = $this->entityTypeManager->getStorage('user')->loadByProperties(array('uid' => $epalUser->user_id));
+							//$user = reset($users);
+	            if ($user) {
+											$langcode = $user->getPreferredLangcode();
+											if ($this->sendEmail($user->getEmail(), $epalNonLocatedStudent->id, $epalNonLocatedStudent->created, $langcode))
+												$cnt_success++;
+	             }
+	            else {
+	                return $this->respondWithStatus([
+	                    'message' => t("user not found"),
+	                ], Response::HTTP_INTERNAL_SERVER_ERROR);
+	            }
+
+	        } else {
+						/*
+	            return $this->respondWithStatus([
+	                    'message' => t("EPAL user not found"),
+	                ], Response::HTTP_FORBIDDEN);
+						*/
+						$cnt_fail++;
+	        }
+
+
+				} //end foreach
+
+				return $this->respondWithStatus([
+						'message' => t("post successful"),
+						'num_success_mail' => $cnt_success,
+						'num_fail_mail' => $cnt_fail,
+						//'test' => $test,
+				], Response::HTTP_OK);
+
+
+			}	 //end try
+
+			catch (\Exception $e) {
+				$this->logger->warning($e->getMessage());
+				return $this->respondWithStatus([
+							"message" => t("An unexpected problem occured during  sendMailToStudents Method ")
+						], Response::HTTP_INTERNAL_SERVER_ERROR);
+			}
+
+		}
+
+		//sendEmail(e-mail address, A/A, application Date, lang)
+		private function sendEmail($email, $appId, $appDate, $langcode) {
+				$mailManager = \Drupal::service('plugin.manager.mail');
+
+				$module = 'epal';
+				$key = 'massive_mail';	//to be checked..
+				$to = $email;
+
+				$params['message']