fix slice_interactions locking up nav bar
[plstackapi.git] / planetstack / core / plus / views.py
index e37faef..407ad38 100644 (file)
@@ -7,13 +7,17 @@ from django.views.generic import TemplateView, View
 import datetime
 from pprint import pprint
 import json
+from syndicate.models import *
 from core.models import *
+from hpc.models import ContentProvider
 from operator import attrgetter
+from django import template
 from django.views.decorators.csrf import csrf_exempt
 from django.http import HttpResponse, HttpResponseServerError
 from django.core import urlresolvers
 from django.contrib.gis.geoip import GeoIP
 from ipware.ip import get_ip
+from operator import itemgetter, attrgetter
 import traceback
 import socket
 
@@ -24,38 +28,132 @@ if os.path.exists("/home/smbaker/projects/vicci/cdn/bigquery"):
 else:
     sys.path.append("/opt/planetstack/hpc_wizard")
 import hpc_wizard
-from planetstack_analytics import DoPlanetStackAnalytics
+from planetstack_analytics import DoPlanetStackAnalytics, PlanetStackAnalytics, RED_LOAD, BLUE_LOAD
 
 class DashboardWelcomeView(TemplateView):
     template_name = 'admin/dashboard/welcome.html'
 
     def get(self, request, *args, **kwargs):
         context = self.get_context_data(**kwargs)
-        userDetails = getUserSliceInfo(request.user)
-        #context['site'] = userDetails['site']
-
-        context['userSliceInfo'] = userDetails['userSliceInfo']
-        context['cdnData'] = userDetails['cdnData']
+        context = getDashboardContext(request.user, context)
         return self.render_to_response(context=context)
 
-def getUserSliceInfo(user, tableFormat = False):
-        userDetails = {}
-#        try:
-# //           site = Site.objects.filter(id=user.site.id)
-#  //      except:
-#   //         site = Site.objects.filter(name="Princeton")
-#    //    userDetails['sitename'] = site[0].name
-#     //   userDetails['siteid'] = site[0].id
+class DashboardDynamicView(TemplateView):
+    head_template = r"""{% extends "admin/dashboard/dashboard_base.html" %}
+       {% load admin_static %}
+       {% block content %}
+    """
+
+    tail_template = r"{% endblock %}"
+
+    def get(self, request, name="root", *args, **kwargs):
+        context = self.get_context_data(**kwargs)
+        context = getDashboardContext(request.user, context)
+
+        if name=="root":
+            return self.multiDashboardView(request, context)
+        else:
+            return self.singleDashboardView(request, name, context)
+
+    def readDashboard(self, fn):
+        try:
+            template= open("/opt/planetstack/templates/admin/dashboard/%s.html" % fn, "r").read()
+            if (fn=="tenant"):
+                # fix for tenant view - it writes html to a div called tabs-5
+                template = '<div id="tabs-5"></div>' + template
+            if (fn=="slice_interactions"):
+                # fix for slice_interactions - it gives its container div a 40px
+                # margin, and then positions it's header at -40px
+                template = '<style>#tabs-4 { margin: 40px; font-size: 24px; font-weight: bold;} </style><div id="tabs-4">' + template + '</div>'
+            return template
+        except:
+            return "failed to open %s" % fn
+
+    def multiDashboardView(self, request, context):
+        head_template = self.head_template
+        tail_template = self.tail_template
+
+        body = """
+         <div id="hometabs" >
+         <ul id="suit_form_tabs" class="nav nav-tabs nav-tabs-suit" data-tab-prefix="suit-tab">
+        """
+
+        dashboards = request.user.get_dashboards()
+
+        # customize is a special dashboard they always get
+        customize = DashboardView.objects.filter(name="Customize")
+        if customize:
+            dashboards.append(customize[0])
+
+        for i,view in enumerate(dashboards):
+            body = body + '<li><a href="#dashtab-%d">%s</a></li>\n' % (i, view.name)
+
+        body = body + "</ul>\n"
+
+        for i,view in enumerate(dashboards):
+            url = view.url
+            body = body + '<div id="dashtab-%d">\n' % i
+            if url.startswith("template:"):
+                fn = url[9:]
+                body = body + self.readDashboard(fn)
+            body = body + '</div>\n'
+
+        body=body+"</div>\n"
+
+        t = template.Template(head_template + body + self.tail_template)
+
+        response_kwargs = {}
+        response_kwargs.setdefault('content_type', self.content_type)
+        return self.response_class(\r
+            request = request,\r
+            template = t,\r
+            context = context,\r
+            **response_kwargs)
+
+    def singleDashboardView(self, request, name, context):
+        head_template = self.head_template
+        tail_template = self.tail_template
+
+        t = template.Template(head_template + self.readDashboard(fn) + self.tail_template)
+
+        response_kwargs = {}
+        response_kwargs.setdefault('content_type', self.content_type)
+        return self.response_class(\r
+            request = request,\r
+            template = t,\r
+            context = context,\r
+            **response_kwargs)
+
+def getDashboardContext(user, context={}, tableFormat = False):
+        context = {}
 
         userSliceData = getSliceInfo(user)
         if (tableFormat):
-#            pprint("*******      GET USER SLICE INFO")
-            userDetails['userSliceInfo'] = userSliceTableFormatter(userSliceData)
+            context['userSliceInfo'] = userSliceTableFormatter(userSliceData)
         else:
-            userDetails['userSliceInfo'] = userSliceData
-        userDetails['cdnData'] = getCDNOperatorData();
-#        pprint( userDetails)
-        return userDetails
+            context['userSliceInfo'] = userSliceData
+        context['cdnData'] = getCDNOperatorData(wait=False)
+        context['cdnContentProviders'] = getCDNContentProviderData()
+
+        (dashboards, unusedDashboards)= getDashboards(user)
+        unusedDashboards=[x for x in unusedDashboards if x!="Customize"]
+        context['dashboards'] = dashboards
+        context['unusedDashboards'] = unusedDashboards
+
+        return context
+
+def getDashboards(user):
+    #dashboards = sorted(list(user.dashboardViews.all()), key=attrgetter('order'))
+    dashboards = user.get_dashboards()
+
+    dashboard_names = [d.name for d in dashboards]
+
+    unused_dashboard_names = []
+    for dashboardView in DashboardView.objects.all():
+        if not dashboardView.name in dashboard_names:
+            unused_dashboard_names.append(dashboardView.name)
+
+    return (dashboard_names, unused_dashboard_names)
 
 class TenantCreateSlice(View):
     def post(self, request, *args, **kwargs):
@@ -63,16 +161,37 @@ class TenantCreateSlice(View):
         serviceClass = request.POST.get("serviceClass", "0")
         imageName = request.POST.get("imageName", "0")
         actionToDo = request.POST.get("actionToDo", "0")
-        print sliceName
+        #network = request.POST.get("network","0")
+        mountDataSets = request.POST.get("mountDataSets","0")
         if (actionToDo == "add"):
            serviceClass = ServiceClass.objects.get(name=serviceClass)
            site = request.user.site
-           #image = Image.objects.get(name=imageName)
-           newSlice = Slice(name=sliceName,serviceClass=serviceClass,site=site,imagePreference=imageName)
+           image = Image.objects.get(name=imageName)
+           newSlice = Slice(name=sliceName,serviceClass=serviceClass,site=site,imagePreference=image,mountDataSets=mountDataSets)
            newSlice.save()
-        return newSlice
-
-
+        return HttpResponse("Slice created")
+
+class TenantUpdateSlice(View):
+    def post(self, request, *args, **kwargs):\r
+        sliceName = request.POST.get("sliceName", "0")\r
+        serviceClass = request.POST.get("serviceClass", "0")\r
+        imageName = request.POST.get("imageName", "0")\r
+        actionToDo = request.POST.get("actionToDo", "0")\r
+        #network = request.POST.get("network","0")\r
+        dataSet = request.POST.get("dataSet","0")\r
+        slice = Slice.objects.all()\r
+        for entry in slice:\r
+                serviceClass = ServiceClass.objects.get(name=serviceClass)\r
+                if(entry.name==sliceName):\r
+                         if (actionToDo == "update"):\r
+                                setattr(entry,'serviceClass',serviceClass)\r
+                                setattr(entry,'imagePreference',imageName)\r
+                                #setattr(entry,'network',network)\r
+                                setattr(entry,'mountDataSets',dataSet)\r
+                                entry.save()\r
+                                break\r
+        return HttpResponse("Slice updated")\r
+\r
 def getTenantSliceInfo(user, tableFormat = False):
     tenantSliceDetails = {}
     tenantSliceData = getTenantInfo(user)
@@ -84,12 +203,13 @@ def getTenantSliceInfo(user, tableFormat = False):
        tenantSliceDetails['userSliceInfo'] = tenantSliceData
     tenantSliceDetails['sliceServiceClass']=userSliceTableFormatter(tenantServiceClassData)
     tenantSliceDetails['image']=userSliceTableFormatter(getImageInfo(user))
-    tenantSliceDetails['network']=userSliceTableFormatter(getNetworkInfo(user))
+    #tenantSliceDetails['network']=userSliceTableFormatter(getNetworkInfo(user))
     tenantSliceDetails['deploymentSites']=userSliceTableFormatter(getDeploymentSites())
-    tenantSliceDetails['sites'] = userSliceTableFormatter(getTenantSitesInfo());
+    tenantSliceDetails['sites'] = userSliceTableFormatter(getTenantSitesInfo())
+    tenantSliceDetails['mountDataSets'] = userSliceTableFormatter(getMountDataSets())
+    tenantSliceDetails['publicKey'] = getPublicKey(user)
     return tenantSliceDetails
 
-
 def getTenantInfo(user):
     slices =Slice.objects.all()
     userSliceInfo = []
@@ -98,17 +218,21 @@ def getTenantInfo(user):
        slice = Slice.objects.get(name=Slice.objects.get(id=entry.id).name)
        sliceServiceClass = entry.serviceClass.name
        preferredImage =  entry.imagePreference
+       sliceDataSet = entry.mountDataSets
+       #sliceNetwork = entry.network
        numSliver = 0
        sliceImage=""
        sliceSite = {}
+       sliceNode = {}
+       sliceInstance= {}
        for sliver in slice.slivers.all():
-            numSliver +=sliver.numberCores
-           # sliceSite[sliver.deploymentNetwork.name] =sliceSite.get(sliver.deploymentNetwork.name,0) + 1
            if sliver.node.site.name in BLESSED_SITES:
-                print "equal",sliver.node.site.name
                 sliceSite[sliver.node.site.name] = sliceSite.get(sliver.node.site.name,0) + 1
                 sliceImage = sliver.image.name
-       userSliceInfo.append({'sliceName': sliceName,'sliceServiceClass': sliceServiceClass,'preferredImage':preferredImage, 'sliceSite':sliceSite,'sliceImage':sliceImage,'numOfSlivers':numSliver})
+                sliceNode[str(sliver)] = sliver.node.name
+       numSliver = sum(sliceSite.values())
+       numSites = len(sliceSite)
+       userSliceInfo.append({'sliceName': sliceName,'sliceServiceClass': sliceServiceClass,'preferredImage':preferredImage,'numOfSites':numSites, 'sliceSite':sliceSite,'sliceImage':sliceImage,'numOfSlivers':numSliver,'sliceDataSet':sliceDataSet,'instanceNodePair':sliceNode})
     return userSliceInfo
 
 def getTenantSitesInfo():
@@ -125,6 +249,13 @@ def userSliceTableFormatter(data):
                     }
     return formattedData
 
+def getPublicKey(user):
+       users=User.objects.all()\r
+        for key in users:\r
+               if (str(key.email)==str(user)):\r
+                       sshKey = key.public_key\r
+        return sshKey
+
 def getServiceClassInfo(user):
     serviceClassList = ServiceClass.objects.all()
     sliceInfo = []
@@ -134,11 +265,67 @@ def getServiceClassInfo(user):
 
 def getImageInfo(user):
     imageList = Image.objects.all()
+    #imageList = ['Fedora 16 LXC rev 1.3','Hadoop','MPI']
     imageInfo = []
     for imageEntry in imageList:
           imageInfo.append({'Image':imageEntry.name})
+          #imageInfo.append({'Image':imageEntry})
     return imageInfo
 
+def createPrivateVolume(user, sliceName):
+    caps = Volume.CAP_READ_DATA | Volume.CAP_WRITE_DATA | Volume.CAP_HOST_DATA
+    getattr(Volume.default_gateway_caps,"read data") | \
+           getattr(Volume.default_gateway_caps,"write data") | \
+           getattr(Volume.default_gateway_caps,"host files")
+    v = Volume(name="private_" + sliceName, owner_id=user, description="private volume for %s" % sliceName, blocksize=61440, private=True, archive=False, default_gateway_caps = caps)
+    v.save()
+
+SYNDICATE_REPLICATE_PORTNUM = 1025
+
+def get_free_port():
+    inuse={}
+    inuse[SYNDICATE_REPLICATE_PORTNUM] = True
+    for vs in VolumeSlice.objects.all():
+        inuse[vs.peer_portnum]=True
+        inuse[vs.replicate_portnum]=True
+    for network in Network.objects.all():
+        network_ports = [x.strip() for x in network.ports.split(",")]
+        for network_port in network_ports:
+            try:
+                inuse[int(network_port)] = True
+            except:
+                # in case someone has put a malformed port number in the list
+                pass
+    for i in range(1025, 65535):
+        if not inuse.get(i,False):
+            return i
+    return False
+
+def mountVolume(sliceName, volumeName, readWrite):
+    slice = Slice.objects.get(name=sliceName)
+    volume = Volume.objects.get(name=volumeName)
+    # choose some unused port numbers
+    flags = Volume.CAP_READ_DATA
+    if readWrite:
+        flags = flags | Volume.CAP_WRITE_DATA
+    vs = VolumeSlice(volume_id = volume, slice_id = slice, gateway_caps=flags, peer_portnum = get_free_port(), replicate_portnum = SYNDICATE_REPLICATE_PORTNUM)
+    vs.save()
+
+def hasPrivateVolume(sliceName):
+     slice = Slice.objects.get(name=sliceName)
+     for vs in VolumeSlice.objects.filter(slice_id=slice):
+         if vs.volume_id.private:
+             return True
+     return False
+
+def getMountDataSets():
+        dataSetInfo=[]\r
+        for volume in Volume.objects.all():\r
+            if not volume.private:\r
+                dataSetInfo.append({'DataSet': volume.name})\r
+\r
+        return dataSetInfo
+
 def getNetworkInfo(user):
    #networkList = Network.objects.all()
     networkList = ['Private Only','Private and Publicly Routable']
@@ -191,15 +378,89 @@ def getSliceInfo(user):
 
     return userSliceInfo
 
-def getCDNOperatorData(randomizeData = False):
-    return hpc_wizard.get_hpc_wizard().get_sites_for_view()
+def getCDNContentProviderData():
+    cps = []
+    for dm_cp in ContentProvider.objects.all():
+        cp = {"name": dm_cp.name,
+              "account": dm_cp.account}
+        cps.append(cp)
+
+    return cps
+
+def getCDNOperatorData(randomizeData = False, wait=True):
+    HPC_SLICE_NAME = "HyperCache"
+
+    bq = PlanetStackAnalytics()
+
+    rows = bq.get_cached_query_results(bq.compose_cached_query(), wait)
+
+    # wait=False on the first time the Dashboard is opened. This means we might
+    # not have any rows yet. The dashboard code polls every 30 seconds, so it
+    # will eventually pick them up.
+
+    if rows:
+        rows = bq.postprocess_results(rows, filter={"event": "hpc_heartbeat"}, maxi=["cpu"], count=["hostname"], computed=["bytes_sent/elapsed"], groupBy=["Time","site"], maxDeltaTime=80)
+
+        # dictionaryize the statistics rows by site name
+        stats_rows = {}
+        for row in rows:
+            stats_rows[row["site"]] = row
+    else:
+        stats_rows = {}
+
+    slice = Slice.objects.filter(name=HPC_SLICE_NAME)
+    if slice:
+        slice_slivers = list(slice[0].slivers.all())
+    else:
+        slice_slivers = []
+
+    new_rows = {}
+    for site in Site.objects.all():
+        # compute number of slivers allocated in the data model
+        allocated_slivers = 0
+        for sliver in slice_slivers:
+            if sliver.node.site == site:
+                allocated_slivers = allocated_slivers + 1
+
+        stats_row = stats_rows.get(site.name,{})
+
+        max_cpu = stats_row.get("max_avg_cpu", stats_row.get("max_cpu",0))
+        cpu=float(max_cpu)/100.0
+        hotness = max(0.0, ((cpu*RED_LOAD) - BLUE_LOAD)/(RED_LOAD-BLUE_LOAD))
+
+        # format it to what that CDN Operations View is expecting
+        new_row = {"lat": float(site.location.longitude),
+               "long": float(site.location.longitude),
+               "lat": float(site.location.latitude),
+               "health": 0,
+               "numNodes": int(site.nodes.count()),
+               "activeHPCSlivers": int(stats_row.get("count_hostname", 0)),     # measured number of slivers, from bigquery statistics
+               "numHPCSlivers": allocated_slivers,                              # allocated number of slivers, from data model
+               "siteUrl": str(site.site_url),
+               "bandwidth": stats_row.get("sum_computed_bytes_sent_div_elapsed",0),
+               "load": max_cpu,
+               "hot": float(hotness)}
+        new_rows[str(site.name)] = new_row
+
+    # get rid of sites with 0 slivers that overlap other sites with >0 slivers
+    for (k,v) in new_rows.items():
+        bad=False
+        if v["numHPCSlivers"]==0:
+            for v2 in new_rows.values():
+                if (v!=v2) and (v2["numHPCSlivers"]>=0):
+                    d = haversine(v["lat"],v["long"],v2["lat"],v2["long"])
+                    if d<100:
+                         bad=True
+            if bad:
+                del new_rows[k]
+
+    return new_rows
 
 def getPageSummary(request):
     slice = request.GET.get('slice', None)
     site = request.GET.get('site', None)
     node = request.GET.get('node', None)
 
-
 class SimulatorView(View):
     def get(self, request, **kwargs):
         sim = json.loads(file("/tmp/simulator.json","r").read())
@@ -219,12 +480,26 @@ class SimulatorView(View):
 
 class DashboardUserSiteView(View):
     def get(self, request, **kwargs):
-        return HttpResponse(json.dumps(getUserSliceInfo(request.user, True)), mimetype='application/javascript')
+        return HttpResponse(json.dumps(getDashboardContext(request.user, tableFormat=True)), mimetype='application/javascript')
 
 class TenantViewData(View):
     def get(self, request, **kwargs):
         return HttpResponse(json.dumps(getTenantSliceInfo(request.user, True)), mimetype='application/javascript')
 
+def haversine(site_lat, site_lon, lat, lon):
+    d=0
+    if lat and lon and site_lat and site_lon:
+        site_lat = float(site_lat)
+        site_lon = float(site_lon)
+        lat = float(lat)
+        lon = float(lon)
+        R = 6378.1
+        a = math.sin( math.radians((lat - site_lat)/2.0) )**2 + math.cos( math.radians(lat) )*math.cos( math.radians(site_lat) )*(math.sin( math.radians((lon - site_lon)/2.0 ) )**2)
+        c = 2 * math.atan2( math.sqrt(a), math.sqrt(1 - a) )
+        d = R * c
+
+    return d
+
 def siteSortKey(site, slice=None, count=None, lat=None, lon=None):
     # try to pick a site we're already using
     has_slivers_here=False
@@ -234,16 +509,7 @@ def siteSortKey(site, slice=None, count=None, lat=None, lon=None):
                 has_slivers_here=True
 
     # Haversine method
-    d = 0
-    site_lat = site.location.latitude
-    site_lon = site.location.longitude
-    if lat and lon and site_lat and site_lon:
-        site_lat = float(site_lat)
-        site_lon = float(site_lon)
-        R = 6378.1
-        a = math.sin( math.radians((lat - site_lat)/2.0) )**2 + math.cos( math.radians(lat) )*math.cos( math.radians(site_lat) )*(math.sin( math.radians((lon - site_lon)/2.0 ) )**2)
-        c = 2 * math.atan2( math.sqrt(a), math.sqrt(1 - a) )
-        d = R * c
+    d = haversine(site.location.latitude, site.location.longitude, lat, lon)
 
     return (-has_slivers_here, d)
 
@@ -276,7 +542,7 @@ def slice_increase_slivers(user, user_ip, siteList, slice, count, noAct=False):
             node.sliverCount = 0
             for sliver in node.slivers.all():
                  if sliver.slice.id == slice.id:
-                     node.sliverCount = node.sliverCount +1
+                     node.sliverCount = node.sliverCount + 1
 
     # Allocate slivers to nodes
     # for now, assume we want to allocate all slivers from the same site
@@ -309,27 +575,36 @@ def slice_increase_slivers(user, user_ip, siteList, slice, count, noAct=False):
 
 def slice_decrease_slivers(user, siteList, slice, count, noAct=False):
     sitesChanged = {}
-
+    sliverList ={}
     if siteList:
         siteNames = [site.name for site in siteList]
     else:
         siteNames = None
 
     for sliver in slice.slivers.all():
-        if (count <= 0):
-            break
-
-        node = sliver.node
-        if (not siteNames) or (node.site.name in siteNames):
-            print "deleting sliver", sliver, "at node", node.name, "of site", node.site.name
-            if not noAct:
-                sliver.delete()
-            count = count -1
-
-            sitesChanged[node.site.name] = sitesChanged.get(node.site.name,0) - 1
-
+        if(not siteNames) or (sliver.node.site.name in siteNames):\r
+                node = sliver.node\r
+                sliverList[sliver.name]=node.name
+
+    for key in sliverList:
+        if count>0:
+            sliver = Sliver.objects.filter(name=key)[0]\r
+            sliver.delete()\r
+            print "deleting sliver",sliverList[key],"at node",sliver.node.name\r
+            count=count-1\r
+            sitesChanged[sliver.node.site.name] = sitesChanged.get(sliver.node.site.name,0) - 1\r
+\r
     return sitesChanged
 
+class TenantDeleteSliceView(View):
+        def post(self,request):\r
+                sliceName = request.POST.get("sliceName",None)\r
+                slice = Slice.objects.get(name=sliceName)\r
+                #print slice, slice.id\r
+                sliceToDel=Slice(name=sliceName, id=slice.id)\r
+                sliceToDel.delete()
+                return HttpResponse("Slice deleted")
+
 class TenantAddOrRemoveSliverView(View):
     """ Add or remove slivers from a Slice
 
@@ -395,7 +670,24 @@ class TenantPickSitesView(View):
 
 class DashboardSummaryAjaxView(View):
     def get(self, request, **kwargs):
-        return HttpResponse(json.dumps(hpc_wizard.get_hpc_wizard().get_summary_for_view()), mimetype='application/javascript')
+        def avg(x):
+            if len(x)==0:
+                return 0
+            return float(sum(x))/len(x)
+
+        sites = getCDNOperatorData().values()
+
+        sites = [site for site in sites if site["numHPCSlivers"]>0]
+
+        total_slivers = sum( [site["numHPCSlivers"] for site in sites] )
+        total_bandwidth = sum( [site["bandwidth"] for site in sites] )
+        average_cpu = int(avg( [site["load"] for site in sites] ))
+
+        result= {"total_slivers": total_slivers,
+                "total_bandwidth": total_bandwidth,
+                "average_cpu": average_cpu}
+
+        return HttpResponse(json.dumps(result), mimetype='application/javascript')
 
 class DashboardAddOrRemoveSliverView(View):
     # TODO: deprecate this view in favor of using TenantAddOrRemoveSliverView
@@ -426,7 +718,7 @@ class DashboardAnalyticsAjaxView(View):
         if (name == "hpcSummary"):
             return HttpResponse(json.dumps(hpc_wizard.get_hpc_wizard().get_summary_for_view()), mimetype='application/javascript')
         elif (name == "hpcUserSite"):
-            return HttpResponse(json.dumps(getUserSliceInfo(request.user, True)), mimetype='application/javascript')
+            return HttpResponse(json.dumps(getDashboardContext(request.user, tableFormat=True)), mimetype='application/javascript')
         elif (name == "hpcMap"):
             return HttpResponse(json.dumps(getCDNOperatorData(True)), mimetype='application/javascript')
         elif (name == "bigquery"):
@@ -435,3 +727,20 @@ class DashboardAnalyticsAjaxView(View):
         else:
             return HttpResponse(json.dumps("Unknown"), mimetype='application/javascript')
 
+class DashboardCustomize(View):
+    def post(self, request, *args, **kwargs):\r
+        dashboards = request.POST.get("dashboards", None)\r
+        if not dashboards:\r
+            dashboards=[]\r
+        else:\r
+            dashboards = [x.strip() for x in dashboards.split(",")]\r
+            dashboards = [DashboardView.objects.get(name=x) for x in dashboards]\r
+\r
+        request.user.dashboardViews.all().delete()\r
+\r
+        for i,dashboard in enumerate(dashboards):\r
+            udbv = UserDashboardView(user=request.user, dashboardView=dashboard, order=i)\r
+            udbv.save()\r
+\r
+        return HttpResponse("updated")\r
+