From f9ce1e01ab2f98fbcc40bfdd3ec9d70b9de15ac6 Mon Sep 17 00:00:00 2001
From: prashantsinalkar
Date: Wed, 18 Dec 2019 17:40:40 +0530
Subject: added api connection check call

---
 website/static/website/js/cloud.js          | 19 +++++++++++++++++++
 website/static/website/templates/index.html |  3 +++
 website/views.py                            | 20 ++++++++++++++------
 3 files changed, 36 insertions(+), 6 deletions(-)

diff --git a/website/static/website/js/cloud.js b/website/static/website/js/cloud.js
index a34f359..43f035f 100644
--- a/website/static/website/js/cloud.js
+++ b/website/static/website/js/cloud.js
@@ -1,3 +1,7 @@
+window.setInterval(function(){
+  checkserver();
+}, 5000);
+
 /* Ajax loader */
 function ajax_loader(key) {
     if (key == "clear") {
@@ -38,6 +42,8 @@ function checkInput(){
 /**************************** math captcha function end *******************/
 $(document.body).ready(function() {
 
+    checkserver();
+
     var editor = CodeMirror.fromTextArea(document.getElementById(
         "code"), {
         lineNumbers: true,
@@ -651,6 +657,7 @@ $(document.body).ready(function() {
     $plotbox = $("#plotbox");
 
     $(document).on("click", "#execute", function() {
+        checkserver();
         if(editor.getValue() != ""){
         ajax_loader(this);
         $("#execute-inner").html("Executing...");
@@ -1060,3 +1067,15 @@ function doSubmit(){
     }
 }
 
+function checkserver(){
+
+    $.ajax({url: api_url,
+            dataType: "jsonp",
+            statusCode: {
+                404: function (response) {
+                    alert("Oops! R cloud server is not available, please try after some time");
+                }
+            }
+     });
+}
+
diff --git a/website/static/website/templates/index.html b/website/static/website/templates/index.html
index fe31f5b..18dd01b 100644
--- a/website/static/website/templates/index.html
+++ b/website/static/website/templates/index.html
@@ -624,6 +624,9 @@
     <script src="{% static 'website/js/javascript.js'%}"></script>
     <script src="{% static 'website/js/fullscreen.js'%}"></script>
     <script src="{% static 'website/js/placeholder.js'%}"></script>
+    <script>
+        var api_url = "{{ api_url }}";
+    </script>
     <script src="{% static 'website/js/cloud.js' %}"></script>
     <script src="{% static 'website/js/jsdiff.js'%}"></script>
     {% csrf_token %}
diff --git a/website/views.py b/website/views.py
index d6646f4..e554ef4 100644
--- a/website/views.py
+++ b/website/views.py
@@ -3,7 +3,8 @@ from django.http import HttpResponse
 from django.template import loader
 import requests
 import uuid
-from R_on_Cloud.config import (API_URL_UPLOAD, API_URL_RESET, AUTH_KEY)
+from R_on_Cloud.config import (API_URL_UPLOAD, API_URL_RESET, AUTH_KEY,
+                               API_URL_SERVER)
 from website.models import *
 from django.db.models import Q
 import json as simplejson
@@ -83,6 +84,7 @@ def index(request):
     user_id = uuid.uuid4()
     context['api_url_upload'] = API_URL_UPLOAD
     context['reset_req_url'] = API_URL_RESET
+    context['api_url'] = API_URL_SERVER
     book_id = request.GET.get('book_id')
     user = request.user
     if not 'user_id' in request.session:
@@ -140,6 +142,7 @@ def index(request):
             'api_url_upload': API_URL_UPLOAD,
             'user_id': request.session['user_id'],
             'key': AUTH_KEY,
+            'api_url': API_URL_SERVER,
         }
         template = loader.get_template('index.html')
         return HttpResponse(template.render(context, request))
@@ -172,6 +175,7 @@ def index(request):
             }
             context['api_url_upload'] = API_URL_UPLOAD
             context['reset_req_url'] = API_URL_RESET
+            context['api_url'] = API_URL_SERVER
             template = loader.get_template('index.html')
             return HttpResponse(template.render(context, request))
 
@@ -212,6 +216,7 @@ def index(request):
             }
             context['api_url_upload'] = API_URL_UPLOAD
             context['reset_req_url'] = API_URL_RESET
+            context['api_url'] = API_URL_SERVER
             template = loader.get_template('index.html')
             return HttpResponse(template.render(context, request))
 
@@ -241,7 +246,7 @@ def index(request):
                     preference_id = cursor.fetchone()
                 with connections['r'].cursor() as cursor:
                     rows_count = cursor.execute(GET_TBC_PREFERENCE_DETAIL_CATEGORY_SQL,
-                                   params=[preference_id[0]])
+                                                params=[preference_id[0]])
                     if rows_count > 0:
                         books_detail = cursor.fetchone()
                         books = get_books(books_detail[1])
@@ -252,10 +257,11 @@ def index(request):
                         context = {
                             'catg': catg_all,
                             'err_msg': """This book is not supported by R on Cloud."""
-                                    """ You are redirected to home page."""
+                            """ You are redirected to home page."""
                         }
                         context['api_url_upload'] = API_URL_UPLOAD
                         context['reset_req_url'] = API_URL_RESET
+                        context['api_url'] = API_URL_SERVER
                         template = loader.get_template('index.html')
                         return HttpResponse(template.render(context, request))
 
@@ -296,6 +302,7 @@ def index(request):
                                """ scilab on cloud."""
                 }
                 context['api_url_upload'] = API_URL_UPLOAD
+                context['api_url'] = API_URL_SERVER
                 template = loader.get_template('index.html')
                 return HttpResponse(template.render(context, request))
             subcateg_all = get_subcategories(maincat_id)
@@ -330,6 +337,7 @@ def index(request):
             #    context['user'] = user
             context['api_url_upload'] = API_URL_UPLOAD
             context['reset_req_url'] = API_URL_RESET
+            context['api_url'] = API_URL_SERVER
             template = loader.get_template('index.html')
             return HttpResponse(template.render(context, request))
 
@@ -359,11 +367,11 @@ def reset(request):
         for key, value in list(request.session.items()):
             if key != 'user_id':
                 del request.session[key]
-            response = {"data" : "ok"}
+            response = {"data": "ok"}
             return HttpResponse(simplejson.dumps(response),
-                        content_type='application/json')
+                                content_type='application/json')
     except KeyError:
         pass
-    response = {"data" : "ok"}
+    response = {"data": "ok"}
     return HttpResponse(simplejson.dumps(response),
                         content_type='application/json')
-- 
cgit