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/*
* Copyright (C) 2008-2010 Trinity <http://www.trinitycore.org/>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "Common.h"
#include "DatabaseEnv.h"
#include "SQLOperation.h"
#include "MySQLConnection.h"
/*! Basic, ad-hoc queries. */
BasicStatementTask::BasicStatementTask(const char* sql) :
m_has_result(false)
{
m_sql = strdup(sql);
}
BasicStatementTask::BasicStatementTask(const char* sql, QueryResultFuture result) :
m_has_result(true),
m_result(result)
{
m_sql = strdup(sql);
}
BasicStatementTask::~BasicStatementTask()
{
free((void*)m_sql);
}
bool BasicStatementTask::Execute()
{
if (m_has_result)
{
m_result.set(
m_conn->Query(m_sql)
);
return true;
}
return m_conn->Execute(m_sql);
}
bool SQLQueryHolder::SetQuery(size_t index, const char *sql)
{
if (m_queries.size() <= index)
{
sLog.outError("Query index (%zu) out of range (size: %u) for query: %s", index, (uint32)m_queries.size(), sql);
return false;
}
if (m_queries[index].first != NULL)
{
sLog.outError("Attempt assign query to holder index (%zu) where other query stored (Old: [%s] New: [%s])",
index, m_queries[index].first, sql);
return false;
}
/// not executed yet, just stored (it's not called a holder for nothing)
m_queries[index] = SQLResultPair(strdup(sql), QueryResult_AutoPtr(NULL));
return true;
}
bool SQLQueryHolder::SetPQuery(size_t index, const char *format, ...)
{
if (!format)
{
sLog.outError("Query (index: %zu) is empty.",index);
return false;
}
va_list ap;
char szQuery [MAX_QUERY_LEN];
va_start(ap, format);
int res = vsnprintf(szQuery, MAX_QUERY_LEN, format, ap);
va_end(ap);
if (res==-1)
{
sLog.outError("SQL Query truncated (and not execute) for format: %s",format);
return false;
}
return SetQuery(index, szQuery);
}
QueryResult_AutoPtr SQLQueryHolder::GetResult(size_t index)
{
if (index < m_queries.size())
{
/// the query strings are freed on the first GetResult or in the destructor
if (m_queries[index].first != NULL)
{
free((void*)(const_cast<char*>(m_queries[index].first)));
m_queries[index].first = NULL;
}
/// when you get a result aways remember to delete it!
return m_queries[index].second;
}
else
return QueryResult_AutoPtr(NULL);
}
void SQLQueryHolder::SetResult(size_t index, QueryResult_AutoPtr result)
{
/// store the result in the holder
if (index < m_queries.size())
m_queries[index].second = result;
}
SQLQueryHolder::~SQLQueryHolder()
{
for (size_t i = 0; i < m_queries.size(); i++)
{
/// if the result was never used, free the resources
/// results used already (getresult called) are expected to be deleted
if (m_queries[i].first != NULL)
free((void*)(const_cast<char*>(m_queries[i].first)));
}
}
void SQLQueryHolder::SetSize(size_t size)
{
/// to optimize push_back, reserve the number of queries about to be executed
m_queries.resize(size);
}
bool SQLQueryHolderTask::Execute()
{
if (!m_holder)
return false;
/// we can do this, we are friends
std::vector<SQLQueryHolder::SQLResultPair> &queries = m_holder->m_queries;
for (size_t i = 0; i < queries.size(); i++)
{
/// execute all queries in the holder and pass the results
char const *sql = queries[i].first;
if (sql)
m_holder->SetResult(i, m_conn->Query(sql));
}
m_result.set(m_holder);
return true;
}
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