/// <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>NFT</returns>
public static NFT 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);
NFT e;
//byte[] bkey;
byte[] bsta = Neo.SmartContract.Framework.Services.Neo.Storage.Get(ctx, NeoStorageKey.StorageKey(nsk, index, _bSTA));
if (NeoTrace.RUNTIME)
{
TraceRuntime("Get(bkey).NFT.bsta", bsta.Length, bsta);
}
if (bsta.Length == 0)
{
e = NFT.Missing();
}
else // not MISSING
{
int ista = (int)bsta.AsBigInteger();
NeoEntityModel.EntityState sta = (NeoEntityModel.EntityState)ista;
if (sta == NeoEntityModel.EntityState.TOMBSTONED)
{
e = NFT.Tombstone();
}
else // not MISSING && not TOMBSTONED
{
e = new NFT();
string Uri = Neo.SmartContract.Framework.Services.Neo.Storage.Get(ctx, NeoStorageKey.StorageKey(nsk, index, _bUri)).AsString(); // Template: NPCLevel4CGetElement_cs.txt
string FirstName = Neo.SmartContract.Framework.Services.Neo.Storage.Get(ctx, NeoStorageKey.StorageKey(nsk, index, _bFirstName)).AsString(); // Template: NPCLevel4CGetElement_cs.txt
string LastName = Neo.SmartContract.Framework.Services.Neo.Storage.Get(ctx, NeoStorageKey.StorageKey(nsk, index, _bLastName)).AsString(); // Template: NPCLevel4CGetElement_cs.txt
e._uri = Uri; e._firstName = FirstName; e._lastName = LastName; // NPCLevel4DBuryElement_cs.txt
e._state = sta;
e._state = NeoEntityModel.EntityState.GETTED; /* OVERRIDE */
}
}
if (NeoTrace.RUNTIME)
{
LogExt("Get(bkey).NFT.e", e);
}
return(e);
}
/// <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>NFT</returns>
public static NFT BuryElement(NeoVersionedAppUser vau, byte[] domain, int index)
{
if (NeoVersionedAppUser.IsNull(vau)) // TODO - create NeoEntityModel.EntityState.BADKEY?
{
return(NFT.Null());
}
Neo.SmartContract.Framework.Services.Neo.StorageContext ctx = Neo.SmartContract.Framework.Services.Neo.Storage.CurrentContext;
NeoStorageKey nsk = NeoStorageKey.New(vau, domain, _bClassName);
//byte[] bkey;
NFT e;
byte[] bsta = Neo.SmartContract.Framework.Services.Neo.Storage.Get(ctx, NeoStorageKey.StorageKey(nsk, index, _bSTA));
if (NeoTrace.RUNTIME)
{
TraceRuntime("Bury(vau,index).NFT.bsta", bsta.Length, bsta);
}
if (bsta.Length == 0)
{
e = NFT.Missing();
}
else // not MISSING - bury it
{
e = NFT.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, _bUri), e._uri); // NPCLevel4EBuryElement_cs.txt
Neo.SmartContract.Framework.Services.Neo.Storage.Put(ctx, NeoStorageKey.StorageKey(nsk, index, _bFirstName), e._firstName); // NPCLevel4EBuryElement_cs.txt
Neo.SmartContract.Framework.Services.Neo.Storage.Put(ctx, NeoStorageKey.StorageKey(nsk, index, _bLastName), e._lastName); // NPCLevel4EBuryElement_cs.txt
} // Template: NPCLevel4Part2_cs.txt
if (NeoTrace.RUNTIME)
{
LogExt("Bury(vau,i).NFT", e);
}
return(e);
}
public static NFT 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;
NFT e;
byte[] bsta = Neo.SmartContract.Framework.Services.Neo.Storage.Get(ctx, _skeyTag + _sSTA);
if (NeoTrace.RUNTIME)
{
TraceRuntime("Bury(skey).NFT.bsta", bsta.Length, bsta);
}
if (bsta.Length == 0)
{
e = NFT.Missing();
}
else // not MISSING - bury it
{
e = NFT.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 + _sUri, e._uri); // Template: NPCLevel3CBury_cs.txt
//Neo.SmartContract.Framework.Services.Neo.Storage.Put(ctx, _skeyTag + _sFirstName, e._firstName); // Template: NPCLevel3CBury_cs.txt
//Neo.SmartContract.Framework.Services.Neo.Storage.Put(ctx, _skeyTag + _sLastName, e._lastName); // Template: NPCLevel3CBury_cs.txt
} // Template: NPCLevel3Part2_cs.txt
if (NeoTrace.RUNTIME)
{
LogExt("Bury(skey).NFT", e);
}
return(e); // return Entity e to signal if key is Missing or bad key
}
public static NFT Bury(byte[] key)
{
if (key.Length == 0)
{
return(Null());
}
Neo.SmartContract.Framework.Services.Neo.StorageContext ctx = Neo.SmartContract.Framework.Services.Neo.Storage.CurrentContext;
byte[] _bkeyTag = Helper.Concat(key, _bclassKeyTag);
NFT e;
byte[] bsta = Neo.SmartContract.Framework.Services.Neo.Storage.Get(ctx, Helper.Concat(_bkeyTag, _bSTA));
if (NeoTrace.RUNTIME)
{
TraceRuntime("Bury(bkey).bsta", bsta.Length, bsta);
}
if (bsta.Length == 0)
{
e = NFT.Missing();
}
else // not MISSING - bury it
{
e = NFT.Tombstone(); // but don't overwrite existing field values - just tombstone it
Neo.SmartContract.Framework.Services.Neo.Storage.Put(ctx, Helper.Concat(_bkeyTag, _bSTA), e._state.AsBigInteger());
//Neo.SmartContract.Framework.Services.Neo.Storage.Put(ctx, Helper.Concat(_bkeyTag, _bUri), e._uri); // Template: NPCLevel3ABury_cs.txt
//Neo.SmartContract.Framework.Services.Neo.Storage.Put(ctx, Helper.Concat(_bkeyTag, _bFirstName), e._firstName); // Template: NPCLevel3ABury_cs.txt
//Neo.SmartContract.Framework.Services.Neo.Storage.Put(ctx, Helper.Concat(_bkeyTag, _bLastName), e._lastName); // Template: NPCLevel3ABury_cs.txt
} // Template: NPCLevel3BBury_cs.txt
if (NeoTrace.RUNTIME)
{
LogExt("Bury(bkey).NFT", e);
}
return(e); // return Entity e to signal if key is Missing or bad key
}