diff --git a/canapEPFL/helpers.php b/canapEPFL/helpers.php
index 75482e53a689ccd17f8197c8c992bc65cb47aafa..33d5dc5959a7fffa134543fe8617b35dafb5468b 100644
--- a/canapEPFL/helpers.php
+++ b/canapEPFL/helpers.php
@@ -269,6 +269,16 @@ function validFileAccess ($pdo, $id, $sciper) {
   return $query->fetchAll();
 }
 
+function isAllInputsEmpty ($inputs) {
+  // check if items are empty
+  foreach ($inputs as $key => $value) {
+    if ($value != "" && $key != 'id') {
+      return false;
+    }
+  }
+  return true;
+}
+
 function deletePostulation ($pdo, $id, $sciper, $rep1, $rep2) {
   // delete scolarities
   $sqlreq = "DELETE FROM scolarity WHERE fk_applicant_id=:id";
@@ -444,14 +454,23 @@ function updatePostulation ($pdo, $posted_data) {
 
   foreach ($posted_data->activitesProfessionnelles as $activity) {
     if (isset($activity['id'])) {
-      $query = $pdo->prepare($sqlreq);
-      $query->bindParam(':applicant_id', $posted_data->id, PDO::PARAM_INT);
-      $query->bindParam(':professional_activity_id', $activity['id'], PDO::PARAM_INT);
-      $query->bindParam(':professional_activity_company', $activity['employeur'], PDO::PARAM_STR);
-      $query->bindParam(':professional_activity_location', $activity['lieu'], PDO::PARAM_STR);
-      $query->bindParam(':professional_activity_activity', $activity['activite'], PDO::PARAM_STR);
-      $query->bindParam(':professional_activity_years', $activity['annees'], PDO::PARAM_STR);
-      $query->execute();
+      if (isAllInputsEmpty($activity)) {
+        // data is empty, delete record
+        $sqlreq = "DELETE FROM professional_activity WHERE fk_applicant_id=:applicant_id AND professional_activity_id=:professional_activity_id";
+        $query = $pdo->prepare($sqlreq);
+        $query->bindParam(':applicant_id', $posted_data->id, PDO::PARAM_INT);
+        $query->bindParam(':professional_activity_id', $activity['id'], PDO::PARAM_INT);
+        $query->execute();
+      } else {
+        $query = $pdo->prepare($sqlreq);
+        $query->bindParam(':applicant_id', $posted_data->id, PDO::PARAM_INT);
+        $query->bindParam(':professional_activity_id', $activity['id'], PDO::PARAM_INT);
+        $query->bindParam(':professional_activity_company', $activity['employeur'], PDO::PARAM_STR);
+        $query->bindParam(':professional_activity_location', $activity['lieu'], PDO::PARAM_STR);
+        $query->bindParam(':professional_activity_activity', $activity['activite'], PDO::PARAM_STR);
+        $query->bindParam(':professional_activity_years', $activity['annees'], PDO::PARAM_STR);
+        $query->execute();
+      }
     } else {
       array_push($to_add, $activity);
     }
@@ -465,12 +484,21 @@ function updatePostulation ($pdo, $posted_data) {
 
   foreach ($posted_data->stages as $training) {
     if (isset($training['id'])) {
-      $query = $pdo->prepare($sqlreq);
-      $query->bindParam(':applicant_id', $posted_data->id, PDO::PARAM_INT);
-      $query->bindParam(':training_id', $training['id'], PDO::PARAM_INT);
-      $query->bindParam(':training_company', $training['metier'], PDO::PARAM_STR);
-      $query->bindParam(':training_job', $training['employeur'], PDO::PARAM_STR);
-      $query->execute();
+      if (isAllInputsEmpty($training)) {
+        // data is empty, delete record
+        $sqlreq = "DELETE FROM training WHERE fk_applicant_id=:applicant_id AND training_id=:training_id";
+        $query = $pdo->prepare($sqlreq);
+        $query->bindParam(':applicant_id', $posted_data->id, PDO::PARAM_INT);
+        $query->bindParam(':training_id', $training['id'], PDO::PARAM_INT);
+        $query->execute();
+      } else {
+        $query = $pdo->prepare($sqlreq);
+        $query->bindParam(':applicant_id', $posted_data->id, PDO::PARAM_INT);
+        $query->bindParam(':training_id', $training['id'], PDO::PARAM_INT);
+        $query->bindParam(':training_company', $training['metier'], PDO::PARAM_STR);
+        $query->bindParam(':training_job', $training['employeur'], PDO::PARAM_STR);
+        $query->execute();
+      }
     } else {
       array_push($to_add, $training);
     }
diff --git a/canapEPFL/script.js b/canapEPFL/script.js
index 0e90a07e6dfce4140aa9228c16ba6f24c5911ef9..a32f45d63dc9b5a06544ec3b66421dbd6f3abda6 100644
--- a/canapEPFL/script.js
+++ b/canapEPFL/script.js
@@ -250,7 +250,6 @@ function showOnFormReturn(lieu) {
         }
         showListJob(lieu);
         showPolyAndInfoDivs(selectedFormation);
-
     } else {
         var selectedFormation = $('#job').val();
         showPolyAndInfoDivs(selectedFormation);
@@ -287,16 +286,16 @@ function checkRequired() {
 
         $($(this).find("[data-required]")).each(function () {
             if ($(this).val() == '') {
-                $(this).addClass('is-invalid')
+                $(this).addClass('is-invalid');
                 e.preventDefault();
                 errsNumber++;
             } else {
-                $(this).removeClass('is-invalid')
+                $(this).removeClass('is-invalid');
             }
         });
         // no error
         if (errsNumber) {
-            alert('Certains champs requis n\'ont pas été remplis')
+            alert('Certains champs requis n\'ont pas été remplis');
         }
         return errsNumber === 0;
     });
diff --git a/canapEPFL/templates/formParts/edit/proactivities.php b/canapEPFL/templates/formParts/edit/proactivities.php
index 86413a0e52b8ea3b11adc3b481abff1249b4df31..1971573e8becd5563a1fe7c6161a91df1d678cfa 100644
--- a/canapEPFL/templates/formParts/edit/proactivities.php
+++ b/canapEPFL/templates/formParts/edit/proactivities.php
@@ -12,16 +12,16 @@
   <tr>
   <input type="text" name="pro_id<?= $i ?>" value="<?= $activity['professional_activity_id'] ?>" hidden readonly>
     <td>
-      <input type="text" name="employeurPro<?= $i ?>" placeholder="Employeur" class="form-control" value="<?php echo $activity['professional_activity_company'] != '' ? $activity['professional_activity_company'] : ''; ?>" data-required/>
+      <input type="text" name="employeurPro<?= $i ?>" placeholder="Employeur" class="form-control" value="<?php echo $activity['professional_activity_company'] != '' ? $activity['professional_activity_company'] : ''; ?>"/>
     </td>
     <td>
-      <input type="text" name="lieuPro<?= $i ?>" placeholder="Lieu" class="form-control" value="<?php echo $activity['professional_activity_location'] != '' ? $activity['professional_activity_location'] : ''; ?>" data-required/>
+      <input type="text" name="lieuPro<?= $i ?>" placeholder="Lieu" class="form-control" value="<?php echo $activity['professional_activity_location'] != '' ? $activity['professional_activity_location'] : ''; ?>"/>
     </td>
     <td>
-      <input type="text" name="activitePro<?= $i ?>" placeholder="Activité" class="form-control" value="<?php echo $activity['professional_activity_activity'] != '' ? $activity['professional_activity_activity'] : ''; ?>" data-required/>
+      <input type="text" name="activitePro<?= $i ?>" placeholder="Activité" class="form-control" value="<?php echo $activity['professional_activity_activity'] != '' ? $activity['professional_activity_activity'] : ''; ?>"/>
     </td>
     <td>
-      <input type="text" name="anneesPro<?= $i ?>" placeholder="de-à (années)" class="form-control" value="<?php echo $activity['professional_activity_years'] != '' ? $activity['professional_activity_years'] : ''; ?>" data-required/>
+      <input type="text" name="anneesPro<?= $i ?>" placeholder="de-à (années)" class="form-control" value="<?php echo $activity['professional_activity_years'] != '' ? $activity['professional_activity_years'] : ''; ?>"/>
     </td>
   </tr>
   <?php } ?>
diff --git a/canapEPFL/templates/head.php b/canapEPFL/templates/head.php
index 1639fee1e890710af5bd45e719291deb740c5fa5..1169763e9f74a6e079bc1f4715b99e895e93022a 100644
--- a/canapEPFL/templates/head.php
+++ b/canapEPFL/templates/head.php
@@ -23,8 +23,8 @@
 <?php
   ini_set("display_errors", 0);
   error_reporting(0);
-  // ini_set("display_errors", 1);
-  // error_reporting(E_ALL);
+  ini_set("display_errors", 1);
+  error_reporting(E_ALL);
   require_once('configs/config.php');
   require('configs/db.php');
   if (!isset($_SESSION)) { session_start(); }