Description of problem:
 Currently user can create custom materialized view (MTV) also on non slowly data changing objects (e.g. vm_device_view). This causes the AddVmCommand invokes the ActivateDeactivateVmCommand which fetch the VmDevice from the DB, but as the materialized view haven't refreshed yet, it doesn't contain that entry.

Possible solutions:
1) prevent user from creating MTV on fast changing data object (creating black/white list in DB) - preferred

2) list wrong/allowed objects on MTVwiki page


Version-Release number of selected component (if applicable):
sf17.2

How reproducible:
100%

Steps to Reproduce:
1. psql -U engine -d engine
2. SELECT CreateMaterializedViewAs('vm_device_view',50);
3. restart engine
4. create new VM with NIC (or add NIC to any VM)


Actual results:
Error while executing action:
MYNEWVM:
    Cannot add Interface. The VM Network Interface does not exist.


Expected results:
 Add new NIC to VM


Additional info:
be log:
===========
 2013-05-30 15:13:59,780 INFO  [org.ovirt.engine.core.bll.network.vm.AddVmInterfaceCommand] (http-/0.0.0.0:8443-16) [4f0c20db] Running command: AddVmInterfaceCommand internal: false. Entities affected :  ID: 5addd4aa-9827-4612-af3f-d1a16d5df8e9 Type: VM,  ID: 00000000-0000-0000-0000-000000000009 Type: Network
2013-05-30 15:13:59,801 WARN  [org.ovirt.engine.core.bll.network.vm.ActivateDeactivateVmNicCommand] (http-/0.0.0.0:8443-16) [4f0c20db] CanDoAction of action ActivateDeactivateVmNic failed. Reasons:VAR__ACTION__ACTIVATE,VAR__TYPE__INTERFACE,VM_INTERFACE_NOT_EXIST
2013-05-30 15:13:59,803 INFO  [org.ovirt.engine.core.bll.network.vm.AddVmInterfaceCommand] (http-/0.0.0.0:8443-16) [4f0c20db] Command [id=353000ce-aa81-4ea3-a98d-139b01e2aa6e]: Compensating NEW_ENTITY_ID of org.ovirt.engine.core.common.businessentities.VmDevice; snapshot: deviceId = 4ccc5d58-0886-46a0-b689-d726350cdceb, vmId = 5addd4aa-9827-4612-af3f-d1a16d5df8e9.
2013-05-30 15:13:59,804 INFO  [org.ovirt.engine.core.bll.network.vm.AddVmInterfaceCommand] (http-/0.0.0.0:8443-16) [4f0c20db] Command [id=353000ce-aa81-4ea3-a98d-139b01e2aa6e]: Compensating NEW_ENTITY_ID of org.ovirt.engine.core.common.businessentities.network.VmNetworkStatistics; snapshot: 4ccc5d58-0886-46a0-b689-d726350cdceb.
2013-05-30 15:13:59,805 INFO  [org.ovirt.engine.core.bll.network.vm.AddVmInterfaceCommand] (http-/0.0.0.0:8443-16) [4f0c20db] Command [id=353000ce-aa81-4ea3-a98d-139b01e2aa6e]: Compensating NEW_ENTITY_ID of org.ovirt.engine.core.common.businessentities.network.VmNetworkInterface; snapshot: 4ccc5d58-0886-46a0-b689-d726350cdceb.
2013-05-30 15:13:59,807 WARN  [org.ovirt.engine.core.compat.backendcompat.PropertyInfo] (http-/0.0.0.0:8443-16) Unable to get value of property: glusterVolume for class org.ovirt.engine.core.bll.network.vm.AddVmInterfaceCommand
2013-05-30 15:13:59,808 WARN  [org.ovirt.engine.core.compat.backendcompat.PropertyInfo] (http-/0.0.0.0:8443-16) Unable to get value of property: vds for class org.ovirt.engine.core.bll.network.vm.AddVmInterfaceCommand