mirror of
https://github.com/TrinityCore/TrinityCore.git
synced 2026-01-18 08:28:32 +01:00
286 lines
7.0 KiB
C++
286 lines
7.0 KiB
C++
/*
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* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
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*
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* Copyright (C) 2008-2010 Trinity <http://www.trinitycore.org/>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "DatabaseEnv.h"
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#include "Log.h"
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ResultSet::ResultSet(MYSQL_RES *result, MYSQL_FIELD *fields, uint64 rowCount, uint32 fieldCount)
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: mFieldCount(fieldCount)
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, mRowCount(rowCount)
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, mResult(result)
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{
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mCurrentRow = new Field[mFieldCount];
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ASSERT(mCurrentRow);
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for (uint32 i = 0; i < mFieldCount; i++)
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mCurrentRow[i].SetType(ConvertNativeType(fields[i].type));
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}
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ResultSet::~ResultSet()
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{
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EndQuery();
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}
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bool ResultSet::NextRow()
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{
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MYSQL_ROW row;
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if (!mResult)
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return false;
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row = mysql_fetch_row(mResult);
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if (!row)
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{
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EndQuery();
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return false;
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}
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for (uint32 i = 0; i < mFieldCount; i++)
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mCurrentRow[i].SetValue(row[i]);
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return true;
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}
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void ResultSet::EndQuery()
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{
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if (mCurrentRow)
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{
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delete [] mCurrentRow;
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mCurrentRow = 0;
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}
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if (mResult)
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{
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mysql_free_result(mResult);
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mResult = 0;
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}
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}
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enum Field::DataTypes ResultSet::ConvertNativeType(enum_field_types mysqlType) const
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{
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switch (mysqlType)
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{
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case FIELD_TYPE_TIMESTAMP:
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case FIELD_TYPE_DATE:
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case FIELD_TYPE_TIME:
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case FIELD_TYPE_DATETIME:
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case FIELD_TYPE_YEAR:
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case FIELD_TYPE_STRING:
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case FIELD_TYPE_VAR_STRING:
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case FIELD_TYPE_BLOB:
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case FIELD_TYPE_SET:
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case FIELD_TYPE_NULL:
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return Field::DB_TYPE_STRING;
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case FIELD_TYPE_TINY:
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case FIELD_TYPE_SHORT:
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case FIELD_TYPE_LONG:
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case FIELD_TYPE_INT24:
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case FIELD_TYPE_LONGLONG:
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case FIELD_TYPE_ENUM:
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return Field::DB_TYPE_INTEGER;
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case FIELD_TYPE_DECIMAL:
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case FIELD_TYPE_FLOAT:
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case FIELD_TYPE_DOUBLE:
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return Field::DB_TYPE_FLOAT;
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default:
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return Field::DB_TYPE_UNKNOWN;
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}
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}
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void ResultBind::BindResult(uint32& num_rows)
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{
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FreeBindBuffer();
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m_res = mysql_stmt_result_metadata(m_stmt);
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if (!m_res)
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return;
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m_fieldCount = mysql_stmt_field_count(m_stmt);
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if (m_stmt->bind_result_done)
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{
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delete[] m_stmt->bind->length;
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delete[] m_stmt->bind->is_null;
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}
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m_rBind = new MYSQL_BIND[m_fieldCount];
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m_isNull = new my_bool[m_fieldCount];
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m_length = new unsigned long[m_fieldCount];
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memset(m_isNull, 0, sizeof(my_bool) * m_fieldCount);
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memset(m_rBind, 0, sizeof(MYSQL_BIND) * m_fieldCount);
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memset(m_length, 0, sizeof(unsigned long) * m_fieldCount);
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//- This is where we store the (entire) resultset
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if (mysql_stmt_store_result(m_stmt))
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{
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sLog.outSQLDriver("%s:mysql_stmt_store_result, cannot bind result from MySQL server. Error: %s", __FUNCTION__, mysql_stmt_error(m_stmt));
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return;
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}
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//- This is where we prepare the buffer based on metadata
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uint32 i = 0;
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MYSQL_FIELD* field;
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while ((field = mysql_fetch_field(m_res)))
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{
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size_t size = SizeForType(field);
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m_rBind[i].buffer_type = field->type;
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m_rBind[i].buffer = malloc(size);
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memset(m_rBind[i].buffer, 0, size);
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m_rBind[i].buffer_length = size;
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m_rBind[i].length = &m_length[i];
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m_rBind[i].is_null = &m_isNull[i];
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m_rBind[i].error = NULL;
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m_rBind[i].is_unsigned = field->flags & UNSIGNED_FLAG;
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++i;
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}
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//- This is where we bind the bind the buffer to the statement
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if (mysql_stmt_bind_result(m_stmt, m_rBind))
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{
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sLog.outSQLDriver("%s:mysql_stmt_bind_result, cannot bind result from MySQL server. Error: %s", __FUNCTION__, mysql_stmt_error(m_stmt));
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delete[] m_rBind;
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delete[] m_isNull;
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delete[] m_length;
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return;
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}
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num_rows = mysql_stmt_num_rows(m_stmt);
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}
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void ResultBind::FreeBindBuffer()
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{
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for (uint32 i = 0; i < m_fieldCount; ++i)
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free (m_rBind[i].buffer);
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}
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void ResultBind::CleanUp()
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{
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FreeBindBuffer();
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mysql_stmt_free_result(m_stmt);
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}
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uint8 PreparedResultSet::GetUInt8(uint32 index)
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{
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if (!CheckFieldIndex(index))
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return 0;
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return *reinterpret_cast<uint8*>(rbind->m_rBind[index].buffer);
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}
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int8 PreparedResultSet::GetInt8(uint32 index)
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{
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if (!CheckFieldIndex(index))
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return 0;
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return *reinterpret_cast<int8*>(rbind->m_rBind[index].buffer);
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}
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uint16 PreparedResultSet::GetUInt16(uint32 index)
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{
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if (!CheckFieldIndex(index))
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return 0;
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return *reinterpret_cast<uint16*>(rbind->m_rBind[index].buffer);
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}
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int16 PreparedResultSet::GetInt16(uint32 index)
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{
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if (!CheckFieldIndex(index))
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return 0;
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return *reinterpret_cast<int16*>(rbind->m_rBind[index].buffer);
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}
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uint32 PreparedResultSet::GetUInt32(uint32 index)
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{
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if (!CheckFieldIndex(index))
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return 0;
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return *reinterpret_cast<uint32*>(rbind->m_rBind[index].buffer);
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}
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int32 PreparedResultSet::GetInt32(uint32 index)
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{
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if (!CheckFieldIndex(index))
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return 0;
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return *reinterpret_cast<int32*>(rbind->m_rBind[index].buffer);
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}
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float PreparedResultSet::GetFloat(uint32 index)
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{
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if (!CheckFieldIndex(index))
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return 0;
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return *reinterpret_cast<float*>(rbind->m_rBind[index].buffer);
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}
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uint64 PreparedResultSet::GetUInt64(uint32 index)
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{
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if (!CheckFieldIndex(index))
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return 0;
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return *reinterpret_cast<uint64*>(rbind->m_rBind[index].buffer);
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}
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int64 PreparedResultSet::GetInt64(uint32 index)
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{
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if (!CheckFieldIndex(index))
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return 0;
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return *reinterpret_cast<int64*>(rbind->m_rBind[index].buffer);
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}
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std::string PreparedResultSet::GetString(uint32 index)
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{
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if (!CheckFieldIndex(index))
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return std::string("");
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return std::string(static_cast<char const*>(rbind->m_rBind[index].buffer), *rbind->m_rBind[index].length);
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}
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const char* PreparedResultSet::GetCString(uint32 index)
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{
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if (!CheckFieldIndex(index))
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return '\0';
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return static_cast<char const*>(rbind->m_rBind[index].buffer);
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}
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bool PreparedResultSet::NextRow()
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{
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if (row_position >= num_rows)
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return false;
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int retval = mysql_stmt_fetch( rbind->m_stmt );
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if (!retval || retval == MYSQL_DATA_TRUNCATED)
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retval = true;
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if (retval == MYSQL_NO_DATA)
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retval = false;
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++row_position;
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return retval;
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} |