storage/base/aaLoadEntity.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim:set ts=2 sw=2 sts=2 et cindent tw=79 ft=cpp: */
   3 /*
   4  * Copyright (C) 2007,2008 Sergey Yanovich <ynvich@gmail.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public
  17  * License along with this program; if not, write to the
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  */
  21
  22 #include "xpcom-config.h"
  23
  24 #include "nsCOMPtr.h"
  25 #include "nsStringAPI.h"
  26
  27 /* Unfrozen API */
  28
  29 /* Project includes */
  30 #include "aaIHandler.h"
  31 #include "aaLoadEntity.h"
  32 #include "aaISqlFilter.h"
  33
  34 #include "aaIColumnNameConverter.h"
  35 #include "aaOrderCondition.h"
  36
  37 /************************************************************************/
  38 class CEntityNameConverter : public aaIColumnNameConverter
  39 {
  40 public:
  41   CEntityNameConverter() {}
  42   ~CEntityNameConverter() {}
  43 public:
  44   NS_IMETHOD_(nsCAutoString) convertName(const nsACString& name) const {
  45     if (name.Equals(NS_LITERAL_CSTRING("entity.tag"))) {
  46       return NS_LITERAL_CSTRING("tag");
  47     }
  48     return nsCAutoString();
  49   }
  50 };
  51 /************************************************************************/
  52
  53 #define AA_LOADENTITY_SELECT_QUERY "SELECT id,tag FROM entity"
  54 #define AA_LOADENTITY_SELECT_QUERY_FILTERED \
  55   "SELECT id,tag FROM entity" AA_SQL_WHERE_FILTER_MARK AA_SQL_ORDER_MARK
  56
  57 static struct aaLoadRequest::ColumnMap map[] = {
  58   { "id", 0 }
  59   ,{"tag", 1}
  60   ,{0, 0}
  61 };
  62
  63 aaLoadEntity::aaLoadEntity()
  64 {
  65   mSql = AA_LOADENTITY_SELECT_QUERY;
  66   mSqlFiltered = AA_LOADENTITY_SELECT_QUERY_FILTERED;
  67   mMap = &map[0];
  68 }
  69
  70 NS_IMPL_ISUPPORTS_INHERITED0(aaLoadEntity,
  71                              aaLoadRequest)
  72
  73 /* aaISqlRequest */
  74 NS_IMETHODIMP
  75 aaLoadEntity::GetParams(nsIArray * * aParams)
  76 {
  77   NS_ENSURE_ARG_POINTER(aParams);
  78   *aParams = nsnull;
  79
  80   return NS_OK;
  81 }
  82
  83 /* aaIDataNode */
  84 NS_IMETHODIMP
  85 aaLoadEntity::Accept(aaIHandler *aQuery)
  86 {
  87   return aQuery->HandleEntity(nsnull);
  88 }
  89
  90 NS_IMETHODIMP
  91   aaLoadEntity::GetCondition(aaICondition* pCondition, nsACString& aSql)
  92 {
  93   nsresult rc = NS_OK;
  94   CEntityNameConverter cnvrt;
  95   NS_ENSURE_ARG_POINTER(pCondition);
  96
  97   aSql.Truncate();
  98
  99   pCondition->ToString(&cnvrt, aSql);
 100
 101   return rc;
 102 }