76 lines
2.2 KiB
C++
76 lines
2.2 KiB
C++
/*
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* Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU GPL v2 license, you may redistribute it and/or modify it under version 2 of the License, or (at your option), any later version.
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* Copyright (C) 2021+ WarheadCore <https://github.com/WarheadCore>
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*/
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#ifndef _QUERYHOLDER_H
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#define _QUERYHOLDER_H
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#include "SQLOperation.h"
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#include <vector>
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class AC_DATABASE_API SQLQueryHolderBase
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{
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friend class SQLQueryHolderTask;
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private:
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std::vector<std::pair<PreparedStatementBase*, PreparedQueryResult>> m_queries;
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public:
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SQLQueryHolderBase() = default;
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virtual ~SQLQueryHolderBase();
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void SetSize(size_t size);
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PreparedQueryResult GetPreparedResult(size_t index) const;
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void SetPreparedResult(size_t index, PreparedResultSet* result);
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protected:
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bool SetPreparedQueryImpl(size_t index, PreparedStatementBase* stmt);
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};
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template<typename T>
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class SQLQueryHolder : public SQLQueryHolderBase
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{
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public:
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bool SetPreparedQuery(size_t index, PreparedStatement<T>* stmt)
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{
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return SetPreparedQueryImpl(index, stmt);
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}
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};
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class AC_DATABASE_API SQLQueryHolderTask : public SQLOperation
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{
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private:
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std::shared_ptr<SQLQueryHolderBase> m_holder;
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QueryResultHolderPromise m_result;
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public:
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explicit SQLQueryHolderTask(std::shared_ptr<SQLQueryHolderBase> holder)
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: m_holder(std::move(holder)) { }
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~SQLQueryHolderTask();
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bool Execute() override;
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QueryResultHolderFuture GetFuture() { return m_result.get_future(); }
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};
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class AC_DATABASE_API SQLQueryHolderCallback
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{
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public:
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SQLQueryHolderCallback(std::shared_ptr<SQLQueryHolderBase>&& holder, QueryResultHolderFuture&& future)
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: m_holder(std::move(holder)), m_future(std::move(future)) { }
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SQLQueryHolderCallback(SQLQueryHolderCallback&&) = default;
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SQLQueryHolderCallback& operator=(SQLQueryHolderCallback&&) = default;
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void AfterComplete(std::function<void(SQLQueryHolderBase const&)> callback) &
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{
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m_callback = std::move(callback);
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}
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bool InvokeIfReady();
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std::shared_ptr<SQLQueryHolderBase> m_holder;
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QueryResultHolderFuture m_future;
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std::function<void(SQLQueryHolderBase const&)> m_callback;
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};
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#endif
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