git.maemo.org Git - jenirok/blob - src/common/settings.cpp

   1 /*
   2  * This file is part of Jenirok.
   3  *
   4  * Jenirok 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 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * Jenirok 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 Jenirok.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 #include <QtSql/QSqlQuery>
  20 #include <QtCore/QVariant>
  21 #include "settings.h"
  22 #include "db.h"
  23
  24 Settings* Settings::instance_ = 0;
  25
  26 Settings* Settings::instance()
  27 {
  28         if(!instance_)
  29         {
  30                 instance_ = new Settings;
  31         }
  32
  33         return instance_;
  34 }
  35
  36 bool Settings::set(QString const& name, QString const& value)
  37 {
  38         bool connected = DB::connected();
  39
  40         if(!connected)
  41         {
  42                 if(!DB::connect())
  43                 {
  44                         return false;
  45                 }
  46         }
  47
  48         QSqlQuery deleteQuery;
  49         deleteQuery.prepare("DELETE FROM settings WHERE name = :name");
  50         deleteQuery.bindValue(":name", QVariant(name));
  51         deleteQuery.exec();
  52
  53         QSqlQuery query;
  54         query.prepare("INSERT INTO settings(name, value) VALUES(:name, :value)");
  55         query.bindValue(":name", QVariant(name));
  56         query.bindValue(":value", QVariant(value));
  57
  58         bool returnValue = query.exec();
  59
  60         if(!connected)
  61         {
  62                 DB::disconnect();
  63         }
  64
  65         return returnValue;
  66 }
  67
  68 QString Settings::get(QString const& name)
  69 {
  70         QString result = "";
  71
  72         bool connected = DB::connected();
  73
  74         if(!connected)
  75         {
  76                 if(!DB::connect())
  77                 {
  78                         return result;
  79                 }
  80         }
  81
  82         QSqlQuery query;
  83
  84         query.prepare("SELECT value FROM settings WHERE name = :name");
  85         query.bindValue(":name", name);
  86
  87         if(query.exec() && query.next())
  88         {
  89                 result = query.value(0).toString();
  90         }
  91         else
  92         {
  93                 result = getDefaultValue(name);
  94         }
  95
  96         if(!connected)
  97         {
  98                 DB::disconnect();
  99         }
 100
 101         return result;
 102
 103 }
 104
 105 QString Settings::getDefaultValue(QString const& name)
 106 {
 107         static bool defaultValuesLoaded = false;
 108         static QMap <QString, QString> defaultValues;
 109
 110         if(!defaultValuesLoaded)
 111         {
 112                 defaultValues["autostart"] = "1";
 113                 defaultValues["eniro_site"] = tr("fi");
 114                 defaultValues["cache_size"] = "200";
 115                 defaultValuesLoaded = true;
 116         }
 117
 118         QMap<QString, QString>::const_iterator it = defaultValues.find(name);
 119
 120         if(it != defaultValues.end())
 121         {
 122                 return it.value();
 123         }
 124
 125         return "";
 126
 127 }
 128
 129 bool Settings::reset()
 130 {
 131         bool connected = DB::connected();
 132
 133         if(!connected)
 134         {
 135                 if(!DB::connect())
 136                 {
 137                         return false;
 138                 }
 139         }
 140
 141         QSqlQuery query;
 142
 143         bool ret = query.exec("DELETE FROM settings");
 144
 145         if(!connected)
 146         {
 147                 DB::disconnect();
 148         }
 149
 150         return ret;
 151 }
 152
 153 Settings::Settings()
 154 {
 155 }