.net - RavenDB Migration: update property from string to array of strings -

i have collection of documents named actions. action in db looks this:

{     "name": "name1",     "actiontype": "typea" } 

i need migrate actions actiontype property contain array of strings:

{     "name": "name1",     "actiontype": ["typea"] } 

i don't want create converters in project mentioned here. should simple utility can run separately.

the idea load documents, made necessary changes , save them (like here). current code looks doesn't work correctly:

using system.collections; using system.collections.generic; using system.linq; using raven.client; using raven.client.document; using raven.client.linq; using raven.json.linq;  namespace ravendbmigration {     public class simplemigrator     {         private readonly idocumentstore _documentstore;          public simplemigrator(idocumentstore documentstore)         {             _documentstore = documentstore;         }          public void run()         {             using (idocumentsession session = _documentstore.opensession())             {                 var fullravenidslist = new list<string> {"1", "2", "3"};                  ravenjobject[] ravenjobjects = session.load<ravenjobject>(fullravenidslist); // problem here - ravenjobjects contains 3 null values instead of actions                 foreach (var ravenjobject in ravenjobjects)                 {                     var results = ravenjobject["actions"] ravenjarray;                     if (results != null)                     {                         foreach (var result in results)                         {                             if (result != null && result.containskey("actiontype"))                             {                                 var actiontypes = new list<string>();                                  var actiontype = result.value<string>("actiontype");                                 if (actiontype != null)                                 {                                     actiontypes.add(actiontype);                                 }                                 result["actiontype"] = new ravenjarray(actiontypes);                             }                         }                     }                 }                  session.savechanges();             }         }         } } 

i use ravendb.client of version 2.5.2700.

you can patch document collection "actions" either via raven studio or via code.

this.actiontype = [this.actiontype]; 

this result in document looking this:

"name": "name1", "actiontype": [   "typea" ] 

hope helps!