Display an error message when there is no column for a project

assets/css/app.css

@@ -426,6 +426,10 @@ nav .active a {
     text-align: right;
 }
 
+.public-board {
+    margin-top: 5px;
+}
+
 #board th a {
     text-decoration: none;
     font-size: 150%;

locales/fr_FR/translations.php

@@ -180,4 +180,5 @@ return array(
     '%d closed tasks' => '%d tâches terminées',
     'no task for this project' => 'aucune tâche pour ce projet',
     'Public link' => 'Accès public',
+    'There is no column in your project!' => 'Il n\'y a aucune colonne dans votre projet !',
 );

locales/pl_PL/translations.php

@@ -180,4 +180,8 @@ return array(
     '%d closed tasks' => '%d zamkniętych zadań',
     'no task for this project' => 'brak zadań dla tego projektu',
     'Public link' => 'Link publiczny',
+
+    /* Missing translations:
+    'There is no column in your project!' => '',
+    */
 );

templates/board_index.php

@@ -21,6 +21,10 @@
         </ul>
     </div>
 
+    <?php if (empty($columns)): ?>
+        <p class="alert alert-error"><?= t('There is no column in your project!') ?></p>
+    <?php else: ?>
+
         <table id="board" data-project-id="<?= $current_project_id ?>">
             <tr>
                 <?php $column_with = round(100 / count($columns), 2); ?>
@@ -60,6 +64,8 @@
             </tr>
         </table>
 
+    <?php endif ?>
+
 </section>
 
 <script type="text/javascript" src="assets/js/board.js"></script>

templates/board_public.php

@@ -1,5 +1,8 @@
-<section id="main">
+<section id="main" class="public-board">
 
+    <?php if (empty($columns)): ?>
+        <p class="alert alert-error"><?= t('There is no column in your project!') ?></p>
+    <?php else: ?>
         <table id="board">
             <tr>
                 <?php $column_with = round(100 / count($columns), 2); ?>
@@ -37,5 +40,6 @@
                 <?php endforeach ?>
             </tr>
         </table>
+    <?php endif ?>
 
 </section>