本文整理汇总了C++中SQLTransaction::null方法的典型用法代码示例。如果您正苦于以下问题：C++ SQLTransaction::null方法的具体用法？C++ SQLTransaction::null怎么用？C++ SQLTransaction::null使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类SQLTransaction的用法示例。
在下文中一共展示了SQLTransaction::null方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: SaveToDB
void Item::SaveToDB(SQLTransaction& trans)
{
bool isInTransaction = !(trans.null());
if(!isInTransaction)
trans = CharacterDatabase.BeginTransaction();
uint32 guid = GetGUIDLow();
switch(uState)
{
case ITEM_NEW:
case ITEM_CHANGED:
{
uint8 index = 0;
PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(uState == ITEM_NEW ? CHAR_ADD_ITEM_INSTANCE : CHAR_UPDATE_ITEM_INSTANCE);
stmt->setUInt32( index, GetEntry());
stmt->setUInt32(++index, GUID_LOPART(GetOwnerGUID()));
stmt->setUInt32(++index, GUID_LOPART(GetUInt64Value(ITEM_FIELD_CREATOR)));
stmt->setUInt32(++index, GUID_LOPART(GetUInt64Value(ITEM_FIELD_GIFTCREATOR)));
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->setInt32 (++index, GetItemRandomPropertyId());
stmt->setUInt32(++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_FLAG_WRAPPED))
{
stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPDATE_GIFT_OWNER);
stmt->setUInt32(0, GUID_LOPART(GetOwnerGUID()));
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_FLAG_WRAPPED))
{
stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_GIFT);
stmt->setUInt32(0, guid);
trans->Append(stmt);
}
if(!isInTransaction)
CharacterDatabase.CommitTransaction(trans);
delete this;
return;
}
case ITEM_UNCHANGED:
break;
}
SetState(ITEM_UNCHANGED);
if(!isInTransaction)
CharacterDatabase.CommitTransaction(trans);
}