prevent readonly user from saving deployment sites
diff --git a/planetstack/core/admin.py b/planetstack/core/admin.py
index 5aeb784..5c52578 100644
--- a/planetstack/core/admin.py
+++ b/planetstack/core/admin.py
@@ -65,7 +65,6 @@
         request.readonly = True
         return super(ReadOnlyAwareAdmin, self).change_view(request, object_id, extra_context=extra_context)
 
-
     def __user_is_readonly(self, request):
         return request.user.isReadOnlyUser()
 
@@ -499,13 +498,17 @@
 
       return deployment
 
+class DeploymentAdminROForm(DeploymentAdminForm):
+    def save(self, commit=True):
+        raise PermissionDenied
+
 class SiteAssocInline(PlStackTabularInline):
     model = Site.deployments.through
     extra = 0
     suit_classes = 'suit-tab suit-tab-sites'
 
 class DeploymentAdmin(PlanetStackBaseAdmin):
-    form = DeploymentAdminForm
+    #form = DeploymentAdminForm
     model = Deployment
     fieldList = ['name','sites']
     fieldsets = [(None, {'fields': fieldList, 'classes':['suit-tab suit-tab-sites']})]
@@ -516,6 +519,13 @@
 
     suit_form_tabs =(('sites','Deployment Details'),('nodes','Nodes'),('deploymentprivileges','Privileges'),('tags','Tags'))
 
+    def get_form(self, request, obj=None, **kwargs):
+        if request.user.isReadOnlyUser():
+            kwargs["form"] = DeploymentAdminROForm
+        else:
+            kwargs["form"] = DeploymentAdminForm
+        return super(DeploymentAdmin,self).get_form(request, obj, **kwargs)
+

 class ServiceAttrAsTabROInline(ReadOnlyTabularInline):
     model = ServiceAttribute
     fields = ['name','value']