storage/aaLoadResource.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 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 <abstract/aacore.h>
  23
  24 #include "nsCOMPtr.h"
  25 #include "nsIMutableArray.h"
  26 #include "nsComponentManagerUtils.h"
  27 #include "nsStringAPI.h"
  28 #include "nsEmbedString.h"
  29
  30 /* Unfrozen API */
  31 #include "unstable/mozIStorageConnection.h"
  32 #include "unstable/mozIStorageStatement.h"
  33
  34 /* Project includes */
  35 #include <abstract/base/aaIResource.h>
  36 #include <abstract/storage/aaILoadQuery.h>
  37 #include "aaLoadResource.h"
  38
  39 #define AA_LOADRESOURCE_SELECT_QUERY "SELECT id,tag FROM resource"
  40 #define AA_RESOURCE_ITEM_CONTRACT "@aasii.org/base/resource;1"
  41
  42 aaLoadResource::aaLoadResource(nsISupports *aOuter)
  43   :aaLoadQuery(aOuter)
  44 {
  45 }
  46
  47 aaLoadResource::~aaLoadResource()
  48 {
  49 }
  50
  51 NS_IMPL_ISUPPORTS_INHERITED0(aaLoadResource,
  52                              aaLoadQuery)
  53
  54 /* Virtual methods */
  55 const char*
  56 aaLoadResource::getSelectQuery() const
  57 {
  58   return AA_LOADRESOURCE_SELECT_QUERY;
  59 }
  60
  61 aaIDataNode*
  62 aaLoadResource::fetchRow()
  63 {
  64   nsresult rv;
  65   PRInt64 resourceId;
  66   nsEmbedCString tag;
  67   rv = mStatement->GetInt64(0, &resourceId);
  68   if (NS_FAILED(rv))
  69     return nsnull;
  70
  71   rv = mStatement->GetUTF8String(1, tag);
  72   if (NS_FAILED(rv))
  73     return nsnull;
  74
  75   aaIResource* resource;
  76   CallCreateInstance("@aasii.org/base/resource;1", nsnull, &resource);
  77   if (! resource)
  78     return nsnull;
  79
  80   resource->SetId(resourceId);
  81   resource->SetTag(NS_ConvertUTF8toUTF16(tag));
  82
  83   return resource;
  84 }
  85