Error Message for no qrcodes selected.

qrcode/bulk_action.php

@@ -20,6 +20,14 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
     $files = [];
     $type = filter_var($json['type'], FILTER_SANITIZE_STRING);
 
+    if (count($params) == 0) {
+        echo json_encode([
+            'data' => 'No qrcodes were selected.',
+            'status' => 400
+        ]);
+        exit();
+    }
+
     foreach ($params as $param) {
         $row = $db->where('id', $param);
         $row = $db->getOne("{$type}_qrcodes");

qrcode/dist/css/custom.css

@@ -10,4 +10,8 @@
 
 .bulk-action-wrapper {
     padding: 10px 0;
+}
+#err-msg {
+    display: none;
+    color: red;
 }

qrcode/dist/js/custom.js

@@ -467,9 +467,19 @@
       success: (res) => {
         if (res.status == 200) {
           window.location.href = res.data;
+          $('#err-msg').css('display', 'none');
+        }
+
+        if (res.status == 400) {
+          $('#err-msg').empty();
+          $('#err-msg').append('<i class="fas fa-exclamation-circle"></i> ' + res.data);
+          $('#err-msg').css('display', 'block');
         }
       },
       error: (err) => {
+        $('#err-msg').empty();
+        $('#err-msg').append('<i class="fas fa-exclamation-circle"></i> ' + res.data);
+        $('#err-msg').css('display', 'block');
         console.log(err);
       }
     });

qrcode/forms/dynamic_table.php

@@ -1,5 +1,6 @@
 <div class="row">
     <div class="col-12">
+        <div id="err-msg"></div>
         <div class="bulk-action-wrapper">
             <form id="bulk-action" action="/bulk_action.php" method="POST"> 
                 <button type="submit" class="btn btn-primary">Bulk Action</button>

qrcode/forms/static_table.php

@@ -1,5 +1,6 @@
 <div class="row">
     <div class="col-12">
+        <div id="err-msg"></div>
         <div class="bulk-action-wrapper">
             <form id="bulk-action" action="/bulk_action.php" method="POST"> 
                 <button type="submit" class="btn btn-primary">Bulk Action</button>