src/shared/Database/QueryResultPostgre.cpp

   1 /*
   2  * Copyright (C) 2005-2008 MaNGOS <http://getmangos.com/>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #ifdef DO_POSTGRESQL
  20
  21 #include "DatabaseEnv.h"
  22
  23 QueryResultPostgre::QueryResultPostgre(PGresult *result, uint64 rowCount, uint32 fieldCount) :
  24 QueryResult(rowCount, fieldCount), mResult(result),  mTableIndex(0)
  25 {
  26
  27     mCurrentRow = new Field[mFieldCount];
  28     ASSERT(mCurrentRow);
  29
  30     for (uint32 i = 0; i < mFieldCount; i++)
  31     {
  32         mFieldNames[i] = PQfname(result, i);
  33         mCurrentRow[i].SetType(ConvertNativeType(PQftype( result, i )));
  34     }
  35 }
  36
  37 QueryResultPostgre::~QueryResultPostgre()
  38 {
  39     EndQuery();
  40 }
  41
  42 bool QueryResultPostgre::NextRow()
  43 {
  44     if (!mResult)
  45         return false;
  46
  47     if (mTableIndex >= mRowCount)
  48     {
  49         EndQuery();
  50         return false;
  51     }
  52
  53     char* pPQgetvalue;
  54     for (int j = 0; j < mFieldCount; j++)
  55     {
  56         pPQgetvalue = PQgetvalue(mResult, mTableIndex, j);
  57         if(pPQgetvalue && !(*pPQgetvalue))
  58             pPQgetvalue = NULL;
  59
  60         mCurrentRow[j].SetValue(pPQgetvalue);
  61     }
  62     ++mTableIndex;
  63
  64     return true;
  65 }
  66
  67 void QueryResultPostgre::EndQuery()
  68 {
  69     if (mCurrentRow)
  70     {
  71         delete [] mCurrentRow;
  72         mCurrentRow = 0;
  73     }
  74
  75     if (mResult)
  76     {
  77         PQclear(mResult);
  78         mResult = 0;
  79     }
  80 }
  81
  82 // see types in #include <postgre/pg_type.h>
  83 enum Field::DataTypes QueryResultPostgre::ConvertNativeType(Oid  pOid ) const
  84 {
  85     switch (pOid)
  86     {
  87         case BPCHAROID:
  88         case CIDOID:
  89         case CIDROID:
  90         case CIRCLEOID:
  91         case INETOID:
  92         case NAMEOID:
  93         case TEXTOID:
  94         case VARCHAROID:
  95             return Field::DB_TYPE_STRING;
  96         case CASHOID:
  97         case FLOAT4OID:
  98         case FLOAT8OID:
  99         case NUMERICOID:
 100             return Field::DB_TYPE_FLOAT;
 101         case DATEOID:                                       // Date
 102         case RELTIMEOID:                                    // Date
 103         case TIMEOID:                                       // Time
 104         case TIMETZOID:                                     // Time
 105         case ABSTIMEOID:                                    // DateTime
 106         case INTERVALOID:                                   // DateTime
 107         case TIMESTAMPOID:                                  // DateTime
 108         case TIMESTAMPTZOID:                                // DateTime
 109         case INT2OID:                                       // Int
 110         case INT2VECTOROID:                                 // Int
 111         case INT4OID:                                       // Int
 112         case OIDOID:                                        // Int
 113         case CHAROID:                                       // UInt
 114         case INT8OID:                                       // LongLong
 115             return Field::DB_TYPE_INTEGER;
 116         case BOOLOID:
 117             return Field::DB_TYPE_BOOL;                     // Bool
 118 /*
 119         case BOXOID:    Rect;
 120         case LINEOID:   Rect;
 121         case VARBITOID: BitArray;
 122         case BYTEAOID:  ByteArray;
 123 */
 124         case LSEGOID:
 125         case OIDVECTOROID:
 126         case PATHOID:
 127         case POINTOID:
 128         case POLYGONOID:
 129         case REGPROCOID:
 130         case TIDOID:
 131         case TINTERVALOID:
 132         case UNKNOWNOID:
 133         case XIDOID:
 134         default:
 135             return Field::DB_TYPE_UNKNOWN;
 136     }
 137     return Field::DB_TYPE_UNKNOWN;
 138 }
 139 #endif