Updating VEG to current VSG and porting to 4.0

Change-Id: I96bfee869b1a137786413306dab80d7e257aee30
(cherry picked from commit 40731830c4a0c37006702647f49c625c369b1a77)
diff --git a/xos/admin.py b/xos/admin.py
index b743a15..4d1de3a 100644
--- a/xos/admin.py
+++ b/xos/admin.py
@@ -1,4 +1,3 @@
-
 # Copyright 2017-present Open Networking Foundation
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -13,7 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-
 from django.contrib import admin
 
 from services.veg.models import *
@@ -26,7 +24,7 @@
 from django.utils import timezone
 from django.contrib.contenttypes import generic
 from suit.widgets import LinkedSelect
-from core.admin import ServiceAppAdmin,SliceInline,ServiceAttrAsTabInline, ReadOnlyAwareAdmin, XOSTabularInline, ServicePrivilegeInline, TenantRootTenantInline, TenantRootPrivilegeInline
+from core.admin import ServiceAppAdmin,SliceInline,ServiceAttrAsTabInline, ReadOnlyAwareAdmin, XOSTabularInline, ServicePrivilegeInline, SubscriberLinkInline, ProviderLinkInline, ProviderDependencyInline,SubscriberDependencyInline
 from core.middleware import get_request
 
 from functools import update_wrapper
@@ -42,12 +40,12 @@
     list_display_links = ('backend_status_icon', 'name', )
     fieldsets = [(None,             {'fields': ['backend_status_text', 'name','enabled','versionNumber', 'description', "view_url", "icon_url", "service_specific_attribute", "node_label"],
                                      'classes':['suit-tab suit-tab-general']}),
-                 ("backend config", {'fields': ["url_filter_kind"],
+                 ("backend config", {'fields': [ "url_filter_kind" ],
                                      'classes':['suit-tab suit-tab-backend']}),
                  ("vEG config", {'fields': ["dns_servers", "docker_image_name", "docker_insecure_registry"],
                                      'classes':['suit-tab suit-tab-veg']}) ]
     readonly_fields = ('backend_status_text', "service_specific_attribute")
-    inlines = [SliceInline,ServiceAttrAsTabInline,ServicePrivilegeInline]
+    inlines = [SliceInline,ServiceAttrAsTabInline,ServicePrivilegeInline, ProviderDependencyInline,SubscriberDependencyInline]
 
     extracontext_registered_admins = True
 
@@ -60,6 +58,7 @@
         #('tools', 'Tools'),
         ('slices','Slices'),
         ('serviceattrs','Additional Attributes'),
+        ('servicetenants', 'Dependencies'),
         ('serviceprivileges','Privileges') ,
     )
 
@@ -67,7 +66,7 @@
                            ) #('hpctools.html', 'top', 'tools') )
 
     def get_queryset(self, request):
-        return VEGService.get_service_objects_by_user(request.user)
+        return VEGService.select_by_user(request.user)
 
 class VEGTenantForm(forms.ModelForm):
     last_ansible_hash = forms.CharField(required=False)
@@ -76,8 +75,7 @@
 
     def __init__(self,*args,**kwargs):
         super (VEGTenantForm,self ).__init__(*args,**kwargs)
-        self.fields['kind'].widget.attrs['readonly'] = True
-        self.fields['provider_service'].queryset = VEGService.objects.all()
+        self.fields['owner'].queryset = VEGService.objects.all()
         if self.instance:
             # fields for the attributes
             self.fields['last_ansible_hash'].initial = self.instance.last_ansible_hash
@@ -85,10 +83,9 @@
             self.fields['wan_container_mac'].initial = self.instance.wan_container_mac
         if (not self.instance) or (not self.instance.pk):
             # default fields for an 'add' form
-            self.fields['kind'].initial = VEG_KIND
             self.fields['creator'].initial = get_request().user
             if VEGService.objects.exists():
-               self.fields["provider_service"].initial = VEGService.objects.all()[0]
+               self.fields["owner"].initial = VEGService.objects.all()[0]
 
     def save(self, commit=True):
         self.instance.creator = self.cleaned_data.get("creator")
@@ -101,18 +98,20 @@
         fields = '__all__'
 
 class VEGTenantAdmin(ReadOnlyAwareAdmin):
-    list_display = ('backend_status_icon', 'id', 'subscriber_tenant' )
+    list_display = ('backend_status_icon', 'id', )
     list_display_links = ('backend_status_icon', 'id')
-    fieldsets = [ (None, {'fields': ['backend_status_text', 'kind', 'provider_service', 'subscriber_tenant', 'service_specific_id',
+    fieldsets = [ (None, {'fields': ['backend_status_text', 'owner', 'service_specific_id',
                                      'wan_container_ip', 'wan_container_mac', 'creator', 'instance', 'last_ansible_hash'],
                           'classes':['suit-tab suit-tab-general']})]
     readonly_fields = ('backend_status_text', 'service_specific_attribute', 'wan_container_ip', 'wan_container_mac')
+    inlines = (ProviderLinkInline, SubscriberLinkInline)
     form = VEGTenantForm
 
-    suit_form_tabs = (('general','Details'),)
+    suit_form_tabs = (('general','Details'),
+                      ('servicelinks','Links'),)
 
     def get_queryset(self, request):
-        return VEGTenant.get_tenant_objects_by_user(request.user)
+        return VEGTenant.select_by_user(request.user)
 
 
 admin.site.register(VEGService, VEGServiceAdmin)