How to indicate that specific entity attribute is not to be updated?

[arangari]

I would like to know if we can define if specific attribute of the entity is not to be updated. eg. public class myclass { public string col1; public string col2; publict int col3; myclass () { col1 = col2 = string.Empty, col3 = 0} }

I receive myclass object in through post/put request. I know that col3 is set to 0 by default. However while updating the db, i do not want to update col3 value if entity already exists.

can i define something like updategraph(myclass_obj, map=> map.donotmodify(obj=>obj.col3) )

if so, can we do something as below:

foo(myclass entity, Expression<> dontmodify) { updategraph(entity, mm=>mm.OwnerCollection().AddToMap(dontmodify)) }

where AddToMap adds into the the maps of IUpdateconfiguration.

[ghost]

Hi,

currently GraphDiff has no such feature, sorry.

[arangari]

Would we consider this as possible enhancement?