public static NeoCounter Bury(string key)
{
if (key.Length == 0)
{
return(Null());
}
Neo.SmartContract.Framework.Services.Neo.StorageContext ctx = Neo.SmartContract.Framework.Services.Neo.Storage.CurrentContext;
string _skeyTag = key + _classKeyTag;
NeoCounter e;
byte[] bsta = Neo.SmartContract.Framework.Services.Neo.Storage.Get(ctx, _skeyTag + _sSTA);
if (NeoTrace.RUNTIME)
{
TraceRuntime("Bury(skey).NeoCounter.bsta", bsta.Length, bsta);
}
if (bsta.Length == 0)
{
e = NeoCounter.Missing();
}
else // not MISSING - bury it
{
e = NeoCounter.Tombstone(); // but don't overwrite existing field values - just tombstone it
Neo.SmartContract.Framework.Services.Neo.Storage.Put(ctx, _skeyTag + _sSTA, e._state.AsBigInteger());
//Neo.SmartContract.Framework.Services.Neo.Storage.Put(ctx, _skeyTag + _sCurrentNumber, e._currentNumber); // Template: NPCLevel3CBury_cs.txt
} // Template: NPCLevel3Part2_cs.txt
if (NeoTrace.RUNTIME)
{
LogExt("Bury(skey).NeoCounter", e);
}
return(e); // return Entity e to signal if key is Missing or bad key
}
/// <summary>
/// Bury an element of an array of entities in Storage based on a NeoStorageKey (NPC Level 4)
/// </summary>
/// <param name="vau">vau</param>
/// <param name="index">index</param>
/// <returns>NeoCounter</returns>
public static NeoCounter BuryElement(NeoVersionedAppUser vau, byte[] domain, int index)
{
if (NeoVersionedAppUser.IsNull(vau)) // TODO - create NeoEntityModel.EntityState.BADKEY?
{
return(NeoCounter.Null());
}
Neo.SmartContract.Framework.Services.Neo.StorageContext ctx = Neo.SmartContract.Framework.Services.Neo.Storage.CurrentContext;
NeoStorageKey nsk = NeoStorageKey.New(vau, domain, _bClassName);
//byte[] bkey;
NeoCounter e;
byte[] bsta = Neo.SmartContract.Framework.Services.Neo.Storage.Get(ctx, NeoStorageKey.StorageKey(nsk, index, _bSTA));
if (NeoTrace.RUNTIME)
{
TraceRuntime("Bury(vau,index).NeoCounter.bsta", bsta.Length, bsta);
}
if (bsta.Length == 0)
{
e = NeoCounter.Missing();
}
else // not MISSING - bury it
{
e = NeoCounter.Tombstone(); // TODO - should Bury() preserve the exist field values or re-initialize them? Preserve is cheaper but not as private
Neo.SmartContract.Framework.Services.Neo.Storage.Put(ctx, NeoStorageKey.StorageKey(nsk, index, _bSTA), e._state.AsBigInteger());
Neo.SmartContract.Framework.Services.Neo.Storage.Put(ctx, NeoStorageKey.StorageKey(nsk, index, _bCurrentNumber), e._currentNumber); // NPCLevel4EBuryElement_cs.txt
} // Template: NPCLevel4Part2_cs.txt
if (NeoTrace.RUNTIME)
{
LogExt("Bury(vau,i).NeoCounter", e);
}
return(e);
}
/// <summary>
/// Get an element of an array of entities from Storage based on a NeoStorageKey (NPC Level 4)
/// </summary>
/// <param name="vau">vau</param>
/// <param name="index">index</param>
/// <returns>NeoCounter</returns>
public static NeoCounter GetElement(NeoVersionedAppUser vau, byte[] domain, int index)
{
if (NeoVersionedAppUser.IsNull(vau))
{
return(Null());
}
Neo.SmartContract.Framework.Services.Neo.StorageContext ctx = Neo.SmartContract.Framework.Services.Neo.Storage.CurrentContext;
NeoStorageKey nsk = NeoStorageKey.New(vau, domain, _bClassName);
NeoCounter e;
//byte[] bkey;
byte[] bsta = Neo.SmartContract.Framework.Services.Neo.Storage.Get(ctx, NeoStorageKey.StorageKey(nsk, index, _bSTA));
if (NeoTrace.RUNTIME)
{
TraceRuntime("Get(bkey).NeoCounter.bsta", bsta.Length, bsta);
}
if (bsta.Length == 0)
{
e = NeoCounter.Missing();
}
else // not MISSING
{
int ista = (int)bsta.AsBigInteger();
NeoEntityModel.EntityState sta = (NeoEntityModel.EntityState)ista;
if (sta == NeoEntityModel.EntityState.TOMBSTONED)
{
e = NeoCounter.Tombstone();
}
else // not MISSING && not TOMBSTONED
{
e = new NeoCounter();
BigInteger CurrentNumber = Neo.SmartContract.Framework.Services.Neo.Storage.Get(ctx, NeoStorageKey.StorageKey(nsk, index, _bCurrentNumber)).AsBigInteger(); // Template: NPCLevel4CGetElement_cs.txt
e._currentNumber = CurrentNumber; // NPCLevel4DBuryElement_cs.txt
e._state = sta;
e._state = NeoEntityModel.EntityState.GETTED; /* OVERRIDE */
}
}
if (NeoTrace.RUNTIME)
{
LogExt("Get(bkey).NeoCounter.e", e);
}
return(e);
}