storage/base/aaFilterCondition.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) 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 "aaFilterCondition.h"
  23 #include "aaIColumnNameConverter.h"
  24
  25 NS_IMPL_ISUPPORTS2(aaFilterCondition, aaIFilterCondition, aaICondition)
  26
  27 aaFilterCondition::aaFilterCondition() {
  28 }
  29
  30
  31 NS_IMETHODIMP
  32   aaFilterCondition::AddFilter(const nsACString & column, const nsACString& compare)
  33 {
  34   NS_ENSURE_ARG(!column.IsEmpty() && !compare.IsEmpty());
  35   aaFilterCondition::FilterStruct fs;
  36   fs.mColumn = column;
  37   fs.mCompareStr = compare;
  38   if (mFilters.AppendElement(fs) != nsnull) {
  39     return NS_OK;
  40   }
  41   return NS_ERROR_FAILURE;
  42 }
  43
  44 NS_IMETHODIMP
  45   aaFilterCondition::GetConditionName(nsACString& condition)
  46 {
  47   condition.Append(FILTER_CONDITION_NAME);
  48   return NS_OK;
  49 }
  50
  51 nsCAutoString
  52   aaFilterCondition::FilterStructToString(const aaFilterCondition::FilterStruct& fs, const aaIColumnNameConverter* pConverter) const
  53 {
  54   nsCAutoString ret_str;
  55   ret_str.Append(pConverter->convertName(fs.mColumn));
  56   ret_str.Append(" LIKE '");
  57   ret_str.Append(fs.mCompareStr);
  58   ret_str.Append("'");
  59   return ret_str;
  60 }
  61
  62 void aaFilterCondition::ToString(const aaIColumnNameConverter * pConverter, nsACString & cond)
  63 {
  64   if (nsnull == pConverter || mFilters.IsEmpty()) return;
  65   cond.Append(this->FilterStructToString(mFilters[0], pConverter));
  66   for(nsTArray<aaFilterCondition::FilterStruct>::size_type i = 1; i < mFilters.Length(); ++ i)
  67   {
  68     cond.Append(" AND ");
  69     cond.Append(this->FilterStructToString(mFilters[i], pConverter));
  70   }
  71 }