C++ GetGuidValue函数代码示例

Item* Item::CloneItem(uint32 count, Player const* player) const
{
    Item* newItem = CreateItem(GetEntry(), count, player, GetItemRandomPropertyId());
    if (!newItem)
        return NULL;

    newItem->SetGuidValue(ITEM_FIELD_CREATOR,     GetGuidValue(ITEM_FIELD_CREATOR));
    newItem->SetGuidValue(ITEM_FIELD_GIFTCREATOR, GetGuidValue(ITEM_FIELD_GIFTCREATOR));
    newItem->SetUInt32Value(ITEM_FIELD_FLAGS,     GetUInt32Value(ITEM_FIELD_FLAGS));
    newItem->SetUInt32Value(ITEM_FIELD_DURATION,  GetUInt32Value(ITEM_FIELD_DURATION));
    return newItem;
}

Item* Item::CloneItem(uint32 count, Player const* player /*= nullptr*/) const
{
    Item* newItem = CreateItem(GetEntry(), count, player);
    if (!newItem)
        return nullptr;

    newItem->SetGuidValue(ITEM_FIELD_CREATOR, GetGuidValue(ITEM_FIELD_CREATOR));
    newItem->SetGuidValue(ITEM_FIELD_GIFTCREATOR, GetGuidValue(ITEM_FIELD_GIFTCREATOR));
    newItem->SetUInt32Value(ITEM_FIELD_FLAGS,        GetUInt32Value(ITEM_FIELD_FLAGS) & ~(ITEM_FIELD_FLAG_REFUNDABLE | ITEM_FIELD_FLAG_BOP_TRADEABLE));
    newItem->SetUInt32Value(ITEM_FIELD_DURATION,     GetUInt32Value(ITEM_FIELD_DURATION));
    // player CAN be NULL in which case we must not update random properties because that accesses player's item update queue
    if (player)
        newItem->SetItemRandomProperties(GetItemRandomPropertyId());
    return newItem;
}

bool Item::LoadFromDB(uint32 guidLow, Field* fields, ObjectGuid ownerGuid)
{
    // create item before any checks for store correct guid
    // and allow use "FSetState(ITEM_REMOVED); SaveToDB();" for deleting item from DB
    Object::_Create(ObjectGuid(HIGHGUID_ITEM, guidLow));

    if (!LoadValues(fields[0].GetString()))
    {
        sLog.outError("Item::LoadFromDB: %s have broken data in `data` field. Can't be loaded.", GetGuidStr().c_str());
        return false;
    }

    SetText(fields[1].GetCppString());

    bool needSave = false;                                  // need explicit save data at load fixes

    // overwrite possible wrong/corrupted guid
    ObjectGuid new_item_guid = ObjectGuid(HIGHGUID_ITEM, guidLow);
    if (GetGuidValue(OBJECT_FIELD_GUID) != new_item_guid)
    {
        SetGuidValue(OBJECT_FIELD_GUID, new_item_guid);
        needSave = true;
    }

    ItemPrototype const* proto = GetProto();
    if (!proto)
        return false;

    // update max durability (and durability) if need
    if (proto->MaxDurability != GetUInt32Value(ITEM_FIELD_MAXDURABILITY))
    {
        SetUInt32Value(ITEM_FIELD_MAXDURABILITY, proto->MaxDurability);
        if (GetUInt32Value(ITEM_FIELD_DURABILITY) > proto->MaxDurability)
            SetUInt32Value(ITEM_FIELD_DURABILITY, proto->MaxDurability);

        needSave = true;
    }

    // recalculate suffix factor
    if (GetItemRandomPropertyId() < 0)
    {
        if (UpdateItemSuffixFactor())
            needSave = true;
    }

    // Remove bind flag for items vs NO_BIND set
    if (IsSoulBound() && proto->Bonding == NO_BIND)
    {
        ApplyModFlag(ITEM_FIELD_FLAGS, ITEM_DYNFLAG_BINDED, false);
        needSave = true;
    }

    // update duration if need, and remove if not need
    if ((proto->Duration == 0) != (GetUInt32Value(ITEM_FIELD_DURATION) == 0))
    {
        SetUInt32Value(ITEM_FIELD_DURATION, proto->Duration);
        needSave = true;
    }

    // set correct owner
    if (ownerGuid && GetOwnerGuid() != ownerGuid)
    {
        SetOwnerGuid(ownerGuid);
        needSave = true;
    }

    // set correct wrapped state
    if (HasFlag(ITEM_FIELD_FLAGS, ITEM_DYNFLAG_WRAPPED))
    {
        // wrapped item must be wrapper (used version that not stackable)
        if (!(proto->Flags & ITEM_FLAG_WRAPPER) || GetMaxStackCount() > 1)
        {
            RemoveFlag(ITEM_FIELD_FLAGS, ITEM_DYNFLAG_WRAPPED);
            needSave = true;

            // also cleanup for sure gift table
            DeleteGiftsFromDB();
        }
    }

    if (needSave)                                          // normal item changed state set not work at loading
    {
        std::ostringstream ss;
        for (uint16 i = 0; i < m_valuesCount; ++i)
            ss << GetUInt32Value(i) << " ";

        static SqlStatementID updItem;
        SqlStatement stmt = CharacterDatabase.CreateStatement(updItem, "UPDATE item_instance SET owner_guid = ?, data = ? WHERE guid = ?");
        stmt.PExecute(GetOwnerGuid().GetCounter(), ss.str().c_str(), guidLow);
    }

    return true;
}

void Item::SaveToDB(SQLTransaction& trans)
{
    bool isInTransaction = bool(trans);
    if (!isInTransaction)
        trans = CharacterDatabase.BeginTransaction();

    ObjectGuid::LowType guid = GetGUID().GetCounter();
    switch (uState)
    {
        case ITEM_NEW:
        case ITEM_CHANGED:
        {
            uint8 index = 0;
            PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(uState == ITEM_NEW ? CHAR_REP_ITEM_INSTANCE : CHAR_UPD_ITEM_INSTANCE);
            stmt->setUInt32(  index, GetEntry());
            stmt->setUInt32(++index, GetOwnerGUID().GetCounter());
            stmt->setUInt32(++index, GetGuidValue(ITEM_FIELD_CREATOR).GetCounter());
            stmt->setUInt32(++index, GetGuidValue(ITEM_FIELD_GIFTCREATOR).GetCounter());
            stmt->setUInt32(++index, GetCount());
            stmt->setUInt32(++index, GetUInt32Value(ITEM_FIELD_DURATION));

            std::ostringstream ssSpells;
            for (uint8 i = 0; i < MAX_ITEM_PROTO_SPELLS; ++i)
                ssSpells << GetSpellCharges(i) << ' ';
            stmt->setString(++index, ssSpells.str());

            stmt->setUInt32(++index, GetUInt32Value(ITEM_FIELD_FLAGS));

            std::ostringstream ssEnchants;
            for (uint8 i = 0; i < MAX_ENCHANTMENT_SLOT; ++i)
            {
                ssEnchants << GetEnchantmentId(EnchantmentSlot(i)) << ' ';
                ssEnchants << GetEnchantmentDuration(EnchantmentSlot(i)) << ' ';
                ssEnchants << GetEnchantmentCharges(EnchantmentSlot(i)) << ' ';
            }
            stmt->setString(++index, ssEnchants.str());

            stmt->setInt16 (++index, GetItemRandomPropertyId());
            stmt->setUInt16(++index, GetUInt32Value(ITEM_FIELD_DURABILITY));
            stmt->setUInt32(++index, GetUInt32Value(ITEM_FIELD_CREATE_PLAYED_TIME));
            stmt->setString(++index, m_text);
            stmt->setUInt32(++index, guid);

            trans->Append(stmt);

            if ((uState == ITEM_CHANGED) && HasFlag(ITEM_FIELD_FLAGS, ITEM_FIELD_FLAG_WRAPPED))
            {
                stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_GIFT_OWNER);
                stmt->setUInt32(0, GetOwnerGUID().GetCounter());
                stmt->setUInt32(1, guid);
                trans->Append(stmt);
            }
            break;
        }
        case ITEM_REMOVED:
        {
            PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_ITEM_INSTANCE);
            stmt->setUInt32(0, guid);
            trans->Append(stmt);

            if (HasFlag(ITEM_FIELD_FLAGS, ITEM_FIELD_FLAG_WRAPPED))
            {
                stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_GIFT);
                stmt->setUInt32(0, guid);
                trans->Append(stmt);
            }

            if (!isInTransaction)
                CharacterDatabase.CommitTransaction(trans);

            // Delete the items if this is a container
            if (!loot.isLooted())
                sLootItemStorage->RemoveStoredLootForContainer(GetGUID().GetCounter());

            delete this;
            return;
        }
        case ITEM_UNCHANGED:
            break;
    }

    SetState(ITEM_UNCHANGED);

    if (!isInTransaction)
        CharacterDatabase.CommitTransaction(trans);
}

bool Item::LoadFromDB(uint32 guidLow, uint64 owner_guid, QueryResult *result)
{
    // create item before any checks for store correct guid
    // and allow use "FSetState(ITEM_REMOVED); SaveToDB();" for deleting item from DB
    Object::_Create(guidLow, 0, HIGHGUID_ITEM);

    bool delete_result = false;
    if(!result)
    {
        result = CharacterDatabase.PQuery("SELECT data FROM item_instance WHERE guid = '%u'", guidLow);
        delete_result = true;
    }

    if (!result)
    {
        sLog.outError("Item (GUID: %u owner: %u) not found in table `item_instance`, can't load. ", guidLow, GUID_LOPART(owner_guid));
        return false;
    }

    Field *fields = result->Fetch();

    if (!LoadValues(fields[0].GetString()))
    {
        sLog.outError("Item #%d have broken data in `data` field. Can't be loaded.", guidLow);
        if (delete_result) delete result;
        return false;
    }

    bool need_save = false;                                 // need explicit save data at load fixes

    // overwrite possible wrong/corrupted guid
    ObjectGuid new_item_guid = ObjectGuid(HIGHGUID_ITEM, guidLow);
    if (GetGuidValue(OBJECT_FIELD_GUID) != new_item_guid)
    {
        SetGuidValue(OBJECT_FIELD_GUID, new_item_guid);
        need_save = true;
    }

    if (delete_result)
        delete result;

    ItemPrototype const* proto = GetProto();
    if(!proto)
        return false;

    // update max durability (and durability) if need
    if(proto->MaxDurability!= GetUInt32Value(ITEM_FIELD_MAXDURABILITY))
    {
        SetUInt32Value(ITEM_FIELD_MAXDURABILITY,proto->MaxDurability);
        if(GetUInt32Value(ITEM_FIELD_DURABILITY) > proto->MaxDurability)
            SetUInt32Value(ITEM_FIELD_DURABILITY,proto->MaxDurability);

        need_save = true;
    }

    // recalculate suffix factor
    if(GetItemRandomPropertyId() < 0)
    {
        if(UpdateItemSuffixFactor())
            need_save = true;
    }

    // Remove bind flag for items vs NO_BIND set
    if (IsSoulBound() && proto->Bonding == NO_BIND)
    {
        ApplyModFlag(ITEM_FIELD_FLAGS,ITEM_FLAGS_BINDED, false);
        need_save = true;
    }

    // update duration if need, and remove if not need
    if ((proto->Duration == 0) != (GetUInt32Value(ITEM_FIELD_DURATION) == 0))
    {
        SetUInt32Value(ITEM_FIELD_DURATION, proto->Duration);
        need_save = true;
    }

    // set correct owner
    if (owner_guid != 0 && GetOwnerGUID() != owner_guid)
    {
        SetOwnerGUID(owner_guid);
        need_save = true;
    }

    if (need_save)                                          // normal item changed state set not work at loading
    {
        std::ostringstream ss;
        ss << "UPDATE item_instance SET data = '";
        for(uint16 i = 0; i < m_valuesCount; ++i )
            ss << GetUInt32Value(i) << " ";
        ss << "', owner_guid = '" << GUID_LOPART(GetOwnerGUID()) << "' WHERE guid = '" << guidLow << "'";

        CharacterDatabase.Execute( ss.str().c_str() );
    }

    return true;
}

bool Item::LoadFromDB(uint32 guidLow, uint64 owner_guid, Field *fields)
{
    // create item before any checks for store correct guid
    // and allow use "FSetState(ITEM_REMOVED); SaveToDB();" for deleting item from DB
    Object::_Create(guidLow, 0, HIGHGUID_ITEM);

    if (!LoadValues(fields[0].GetString()))
    {
        sLog.outError("Item #%d have broken data in `data` field. Can't be loaded.", guidLow);
        return false;
    }

    bool need_save = false;                                 // need explicit save data at load fixes

    // overwrite possible wrong/corrupted guid
    ObjectGuid new_item_guid = ObjectGuid(HIGHGUID_ITEM, guidLow);
    if (GetGuidValue(OBJECT_FIELD_GUID) != new_item_guid)
    {
        SetGuidValue(OBJECT_FIELD_GUID, new_item_guid);
        need_save = true;
    }

    ItemPrototype const* proto = GetProto();
    if(!proto)
        return false;

    // update max durability (and durability) if need
    if(proto->MaxDurability!= GetUInt32Value(ITEM_FIELD_MAXDURABILITY))
    {
        SetUInt32Value(ITEM_FIELD_MAXDURABILITY,proto->MaxDurability);
        if(GetUInt32Value(ITEM_FIELD_DURABILITY) > proto->MaxDurability)
            SetUInt32Value(ITEM_FIELD_DURABILITY,proto->MaxDurability);

        need_save = true;
    }

    // Remove bind flag for items vs NO_BIND set
    if (IsSoulBound() && proto->Bonding == NO_BIND)
    {
        ApplyModFlag(ITEM_FIELD_FLAGS, ITEM_DYNFLAG_BINDED, false);
        need_save = true;
    }

    // update duration if need, and remove if not need
    if ((proto->Duration == 0) != (GetUInt32Value(ITEM_FIELD_DURATION) == 0))
    {
        SetUInt32Value(ITEM_FIELD_DURATION, proto->Duration);
        need_save = true;
    }

    // set correct owner
    if (owner_guid != 0 && GetOwnerGUID() != owner_guid)
    {
        SetOwnerGUID(owner_guid);
        need_save = true;
    }

    // set correct wrapped state
    if (HasFlag(ITEM_FIELD_FLAGS, ITEM_DYNFLAG_WRAPPED))
    {
        // wrapped item must be wrapper (used version that not stackable)
        if (!(proto->Flags & ITEM_FLAG_WRAPPER) || GetMaxStackCount() > 1)
        {
            RemoveFlag(ITEM_FIELD_FLAGS, ITEM_DYNFLAG_WRAPPED);
            need_save = true;

            // also cleanup for sure gift table
            CharacterDatabase.PExecute("DELETE FROM character_gifts WHERE item_guid = '%u'", GetGUIDLow());
        }
    }

    if (need_save)                                          // normal item changed state set not work at loading
    {
        std::ostringstream ss;
        ss << "UPDATE item_instance SET data = '";
        for(uint16 i = 0; i < m_valuesCount; ++i )
            ss << GetUInt32Value(i) << " ";
        ss << "', owner_guid = '" << GUID_LOPART(GetOwnerGUID()) << "' WHERE guid = '" << guidLow << "'";

        CharacterDatabase.Execute( ss.str().c_str() );
    }

    return true;
}