DmytroLitvinov · September 13, 2021 22:18 · Feb 10, 2017 · Feb 9, 2017 · Feb 9, 2017
diff --git a/messages.html b/messages.html
@@ -0,0 +1,8 @@
+<div id="messages">
+    {% for message in messages %}
+        <div {% if message.tags %}class="alert alert-dismissable alert-{{ message.tags }}"{% endif %}>
+            <a class="close" data-dismiss="alert" href="#">&times;</a>
+            {{ message }}
+        </div>
+    {% endfor %}
+</div>
diff --git a/script.js b/script.js
@@ -0,0 +1,31 @@
+$(document).ready(function() {
+    function addMessage(text, extra_tags) {
+        var message = $(`
+            <div class="alert alert-dismissable alert-${extra_tags}">\n
+                <a class="close" data-dismiss="alert" href="#">&times;</a>\n
+                    ${text}\n
+            </div>`).hide();
+        $("#messages").append(message);
+        message.fadeIn(500);
+
+        setTimeout(function() {
+            message.fadeOut(500, function() {
+                message.remove();
+            });
+        }, 3000);
+    }
+
+    $(document).ajaxComplete(function (e, xhr, settings) {
+        var contentType = xhr.getResponseHeader("Content-Type");
+        if (contentType == "application/javascript" || contentType == "application/json") {
+            var json = $.evalJSON(xhr.responseText);
+            $.each(json.django_messages, function (i, item) {
+                addMessage(item.text, item.tags);
+            });
+
+        }
+    }).ajaxError(function (e, xhr, settings, exception) {
+        addMessage("There was an error processing your request, please try again.", "error");
+    })
+
+});
diff --git a/middleware.py b/middleware.py
@@ -0,0 +1,34 @@
+from django.contrib import messages
+import simplejson
+from .utils import get_message_dict
+
+
+class AjaxMessaging(object):
+    """
+    Middlware for JSON responses. It adds to each JSON response array with
+    messages from django.contrib.messages framework.
+    It allows handle messages on a page with javascript
+    """
+
+    def __init__(self, get_response):
+        self.get_response = get_response
+        # One-time configuration and initialization.
+
+    def __call__(self, request):
+        response = self.get_response(request)
+
+        if request.is_ajax():
+            if response['Content-Type'] in ["application/javascript",
+                                            "application/json"]:
+                try:
+                    content = simplejson.loads(response.content)
+                    assert isinstance(content, dict)
+                except (ValueError, AssertionError):
+                    return response
+
+                content['django_messages'] = [get_message_dict(message) for
+                                              message in
+                                              messages.get_messages(request)]
+
+                response.content = simplejson.dumps(content)
+        return response