1 | /****************************************************************************
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2 | **
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3 | ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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4 | ** All rights reserved.
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5 | ** Contact: Nokia Corporation ([email protected])
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6 | **
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7 | ** This file is part of the Qt Assistant of the Qt Toolkit.
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8 | **
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9 | ** $QT_BEGIN_LICENSE:LGPL$
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10 | ** Commercial Usage
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11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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12 | ** accordance with the Qt Commercial License Agreement provided with the
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13 | ** Software or, alternatively, in accordance with the terms contained in
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14 | ** a written agreement between you and Nokia.
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15 | **
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16 | ** GNU Lesser General Public License Usage
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17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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18 | ** General Public License version 2.1 as published by the Free Software
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19 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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20 | ** packaging of this file. Please review the following information to
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21 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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22 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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23 | **
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24 | ** In addition, as a special exception, Nokia gives you certain additional
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25 | ** rights. These rights are described in the Nokia Qt LGPL Exception
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26 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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27 | **
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28 | ** GNU General Public License Usage
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29 | ** Alternatively, this file may be used under the terms of the GNU
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30 | ** General Public License version 3.0 as published by the Free Software
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31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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32 | ** packaging of this file. Please review the following information to
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33 | ** ensure the GNU General Public License version 3.0 requirements will be
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34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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35 | **
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36 | ** If you have questions regarding the use of this file, please contact
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37 | ** Nokia at [email protected].
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38 | ** $QT_END_LICENSE$
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39 | **
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40 | ****************************************************************************/
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41 |
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42 | #include "qhelpdbreader_p.h"
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43 | #include "qhelp_global.h"
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44 |
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45 | #include <QtCore/QVariant>
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46 | #include <QtCore/QFile>
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47 | #include <QtSql/QSqlError>
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48 | #include <QtSql/QSqlQuery>
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49 |
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50 | QT_BEGIN_NAMESPACE
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51 |
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52 | QHelpDBReader::QHelpDBReader(const QString &dbName)
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53 | : QObject(0)
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54 | {
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55 | initObject(dbName,
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56 | QHelpGlobal::uniquifyConnectionName(QLatin1String("QHelpDBReader"),
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57 | this));
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58 | }
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59 |
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60 | QHelpDBReader::QHelpDBReader(const QString &dbName, const QString &uniqueId,
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61 | QObject *parent)
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62 | : QObject(parent)
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63 | {
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64 | initObject(dbName, uniqueId);
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65 | }
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66 |
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67 | void QHelpDBReader::initObject(const QString &dbName, const QString &uniqueId)
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68 | {
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69 | m_dbName = dbName;
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70 | m_uniqueId = uniqueId;
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71 | m_initDone = false;
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72 | m_query = 0;
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73 | m_useAttributesCache = false;
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74 | }
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75 |
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76 | QHelpDBReader::~QHelpDBReader()
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77 | {
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78 | if (m_initDone) {
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79 | delete m_query;
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80 | QSqlDatabase::removeDatabase(m_uniqueId);
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81 | }
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82 | }
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83 |
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84 | bool QHelpDBReader::init()
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85 | {
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86 | if (m_initDone)
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87 | return true;
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88 |
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89 | if (!QFile::exists(m_dbName))
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90 | return false;
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91 |
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92 | QSqlDatabase db = QSqlDatabase::addDatabase(QLatin1String("QSQLITE"), m_uniqueId);
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93 | db.setDatabaseName(m_dbName);
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94 | if (!db.open()) {
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95 | /*: The placeholders are: %1 - The name of the database which cannot be opened
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96 | %2 - The unique id for the connection
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97 | %3 - The actual error string */
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98 | m_error = tr("Cannot open database '%1' '%2': %3").arg(m_dbName, m_uniqueId, db.lastError().text());
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99 | QSqlDatabase::removeDatabase(m_uniqueId);
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100 | return false;
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101 | }
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102 |
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103 | m_initDone = true;
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104 | m_query = new QSqlQuery(db);
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105 |
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106 | return true;
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107 | }
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108 |
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109 | QString QHelpDBReader::databaseName() const
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110 | {
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111 | return m_dbName;
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112 | }
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113 |
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114 | QString QHelpDBReader::errorMessage() const
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115 | {
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116 | return m_error;
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117 | }
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118 |
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119 | QString QHelpDBReader::namespaceName() const
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120 | {
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121 | if (!m_namespace.isEmpty())
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122 | return m_namespace;
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123 | if (m_query) {
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124 | m_query->exec(QLatin1String("SELECT Name FROM NamespaceTable"));
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125 | if (m_query->next())
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126 | m_namespace = m_query->value(0).toString();
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127 | }
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128 | return m_namespace;
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129 | }
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130 |
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131 | QString QHelpDBReader::virtualFolder() const
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132 | {
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133 | if (m_query) {
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134 | m_query->exec(QLatin1String("SELECT Name FROM FolderTable WHERE Id=1"));
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135 | if (m_query->next())
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136 | return m_query->value(0).toString();
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137 | }
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138 | return QString();
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139 | }
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140 |
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141 | QList<QStringList> QHelpDBReader::filterAttributeSets() const
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142 | {
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143 | QList<QStringList> result;
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144 | if (m_query) {
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145 | m_query->exec(QLatin1String("SELECT a.Id, b.Name FROM FileAttributeSetTable a, "
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146 | "FilterAttributeTable b WHERE a.FilterAttributeId=b.Id ORDER BY a.Id"));
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147 | int oldId = -1;
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148 | while (m_query->next()) {
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149 | int id = m_query->value(0).toInt();
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150 | if (id != oldId) {
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151 | result.append(QStringList());
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152 | oldId = id;
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153 | }
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154 | result.last().append(m_query->value(1).toString());
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155 | }
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156 | }
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157 | return result;
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158 | }
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159 |
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160 | bool QHelpDBReader::fileExists(const QString &virtualFolder,
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161 | const QString &filePath,
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162 | const QStringList &filterAttributes) const
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163 | {
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164 | if (virtualFolder.isEmpty() || filePath.isEmpty() || !m_query)
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165 | return false;
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166 |
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167 | //SELECT COUNT(a.Name) FROM FileNameTable a, FolderTable b, FileFilterTable c, FilterAttributeTable d WHERE a.FolderId=b.Id AND b.Name='qtdoc' AND a.Name='qstring.html' AND a.FileId=c.FileId AND c.FilterAttributeId=d.Id AND d.Name='qtrefdoc'
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168 |
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169 | QString query;
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170 | namespaceName();
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171 | if (filterAttributes.isEmpty()) {
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172 | query = QString(QLatin1String("SELECT COUNT(a.Name) FROM FileNameTable a, FolderTable b "
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173 | "WHERE a.FolderId=b.Id AND b.Name=\'%1\' AND a.Name=\'%2\'")).arg(quote(virtualFolder)).arg(quote(filePath));
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174 | } else {
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175 | query = QString(QLatin1String("SELECT COUNT(a.Name) FROM FileNameTable a, FolderTable b, "
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176 | "FileFilterTable c, FilterAttributeTable d WHERE a.FolderId=b.Id "
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177 | "AND b.Name=\'%1\' AND a.Name=\'%2\' AND a.FileId=c.FileId AND "
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178 | "c.FilterAttributeId=d.Id AND d.Name=\'%3\'"))
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179 | .arg(quote(virtualFolder)).arg(quote(filePath))
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180 | .arg(quote(filterAttributes.first()));
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181 | for (int i=1; i<filterAttributes.count(); ++i) {
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182 | query.append(QString(QLatin1String(" INTERSECT SELECT COUNT(a.Name) FROM FileNameTable a, "
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183 | "FolderTable b, FileFilterTable c, FilterAttributeTable d WHERE a.FolderId=b.Id "
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184 | "AND b.Name=\'%1\' AND a.Name=\'%2\' AND a.FileId=c.FileId AND "
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185 | "c.FilterAttributeId=d.Id AND d.Name=\'%3\'"))
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186 | .arg(quote(virtualFolder)).arg(quote(filePath))
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187 | .arg(quote(filterAttributes.at(i))));
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188 | }
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189 | }
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190 | m_query->exec(query);
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191 | if (m_query->next() && m_query->isValid() && m_query->value(0).toInt())
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192 | return true;
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193 | return false;
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194 | }
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195 |
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196 | QByteArray QHelpDBReader::fileData(const QString &virtualFolder,
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197 | const QString &filePath) const
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198 | {
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199 | QByteArray ba;
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200 | if (virtualFolder.isEmpty() || filePath.isEmpty() || !m_query)
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201 | return ba;
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202 |
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203 | namespaceName();
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204 | m_query->prepare(QLatin1String("SELECT a.Data FROM FileDataTable a, FileNameTable b, FolderTable c, "
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205 | "NamespaceTable d WHERE a.Id=b.FileId AND (b.Name=? OR b.Name=?) AND b.FolderId=c.Id "
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206 | "AND c.Name=? AND c.NamespaceId=d.Id AND d.Name=?"));
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207 | m_query->bindValue(0, filePath);
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208 | m_query->bindValue(1, QLatin1String("./") + filePath);
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209 | m_query->bindValue(2, virtualFolder);
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210 | m_query->bindValue(3, m_namespace);
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211 | m_query->exec();
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212 | if (m_query->next() && m_query->isValid())
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213 | ba = qUncompress(m_query->value(0).toByteArray());
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214 | return ba;
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215 | }
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216 |
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217 | QStringList QHelpDBReader::customFilters() const
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218 | {
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219 | QStringList lst;
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220 | if (m_query) {
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221 | m_query->exec(QLatin1String("SELECT Name FROM FilterNameTable"));
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222 | while (m_query->next())
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223 | lst.append(m_query->value(0).toString());
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224 | }
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225 | return lst;
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226 | }
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227 |
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228 | QStringList QHelpDBReader::filterAttributes(const QString &filterName) const
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229 | {
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230 | QStringList lst;
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231 | if (m_query) {
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232 | if (filterName.isEmpty()) {
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233 | m_query->prepare(QLatin1String("SELECT Name FROM FilterAttributeTable"));
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234 | } else {
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235 | m_query->prepare(QLatin1String("SELECT a.Name FROM FilterAttributeTable a, "
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236 | "FilterTable b, FilterNameTable c WHERE c.Name=? "
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237 | "AND c.Id=b.NameId AND b.FilterAttributeId=a.Id"));
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238 | m_query->bindValue(0, filterName);
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239 | }
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240 | m_query->exec();
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241 | while (m_query->next())
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242 | lst.append(m_query->value(0).toString());
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243 | }
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244 | return lst;
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245 | }
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246 |
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247 | QStringList QHelpDBReader::indicesForFilter(const QStringList &filterAttributes) const
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248 | {
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249 | QStringList indices;
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250 | if (!m_query)
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251 | return indices;
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252 |
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253 | //SELECT DISTINCT a.Name FROM IndexTable a, IndexFilterTable b, FilterAttributeTable c WHERE a.Id=b.IndexId AND b.FilterAttributeId=c.Id AND c.Name in ('4.2.3', 'qt')
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254 |
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255 | QString query;
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256 | if (filterAttributes.isEmpty()) {
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257 | query = QLatin1String("SELECT DISTINCT Name FROM IndexTable");
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258 | } else {
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259 | query = QString(QLatin1String("SELECT DISTINCT a.Name FROM IndexTable a, "
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260 | "IndexFilterTable b, FilterAttributeTable c WHERE a.Id=b.IndexId "
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261 | "AND b.FilterAttributeId=c.Id AND c.Name='%1'")).arg(quote(filterAttributes.first()));
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262 | for (int i=1; i<filterAttributes.count(); ++i) {
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263 | query.append(QString(QLatin1String(" INTERSECT SELECT DISTINCT a.Name FROM IndexTable a, "
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264 | "IndexFilterTable b, FilterAttributeTable c WHERE a.Id=b.IndexId "
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265 | "AND b.FilterAttributeId=c.Id AND c.Name='%1'"))
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266 | .arg(quote(filterAttributes.at(i))));
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267 | }
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268 | }
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269 |
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270 | m_query->exec(query);
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271 | while (m_query->next()) {
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272 | if (!m_query->value(0).toString().isEmpty())
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273 | indices.append(m_query->value(0).toString());
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274 | }
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275 | return indices;
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276 | }
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277 |
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278 | void QHelpDBReader::linksForKeyword(const QString &keyword, const QStringList &filterAttributes,
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279 | QMap<QString, QUrl> &linkMap) const
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280 | {
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281 | if (!m_query)
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282 | return;
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283 |
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284 | QString query;
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285 | if (filterAttributes.isEmpty()) {
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286 | query = QString(QLatin1String("SELECT d.Title, f.Name, e.Name, d.Name, a.Anchor "
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287 | "FROM IndexTable a, FileNameTable d, "
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288 | "FolderTable e, NamespaceTable f WHERE "
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289 | "a.FileId=d.FileId AND d.FolderId=e.Id AND a.NamespaceId=f.Id "
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290 | "AND a.Name='%1'")).arg(quote(keyword));
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291 | } else if (m_useAttributesCache) {
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292 | query = QString(QLatin1String("SELECT d.Title, f.Name, e.Name, d.Name, a.Anchor, a.Id "
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293 | "FROM IndexTable a, "
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294 | "FileNameTable d, FolderTable e, NamespaceTable f WHERE "
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295 | "a.FileId=d.FileId AND d.FolderId=e.Id "
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296 | "AND a.NamespaceId=f.Id AND a.Name='%1'"))
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297 | .arg(quote(keyword));
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298 | m_query->exec(query);
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299 | while (m_query->next()) {
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300 | if (m_indicesCache.contains(m_query->value(5).toInt())) {
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301 | linkMap.insertMulti(m_query->value(0).toString(), buildQUrl(m_query->value(1).toString(),
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302 | m_query->value(2).toString(), m_query->value(3).toString(),
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303 | m_query->value(4).toString()));
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304 | }
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305 | }
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306 | return;
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307 | } else {
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308 | query = QString(QLatin1String("SELECT d.Title, f.Name, e.Name, d.Name, a.Anchor "
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309 | "FROM IndexTable a, IndexFilterTable b, FilterAttributeTable c, "
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310 | "FileNameTable d, FolderTable e, NamespaceTable f "
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311 | "WHERE a.FileId=d.FileId AND d.FolderId=e.Id "
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312 | "AND a.NamespaceId=f.Id AND b.IndexId=a.Id AND b.FilterAttributeId=c.Id "
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313 | "AND a.Name='%1' AND c.Name='%2'")).arg(quote(keyword))
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314 | .arg(quote(filterAttributes.first()));
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315 | for (int i=1; i<filterAttributes.count(); ++i) {
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316 | query.append(QString(QLatin1String(" INTERSECT SELECT d.Title, f.Name, e.Name, d.Name, a.Anchor "
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317 | "FROM IndexTable a, IndexFilterTable b, FilterAttributeTable c, "
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318 | "FileNameTable d, FolderTable e, NamespaceTable f "
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319 | "WHERE a.FileId=d.FileId AND d.FolderId=e.Id "
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320 | "AND a.NamespaceId=f.Id AND b.IndexId=a.Id AND b.FilterAttributeId=c.Id "
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321 | "AND a.Name='%1' AND c.Name='%2'")).arg(quote(keyword))
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322 | .arg(quote(filterAttributes.at(i))));
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323 | }
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324 | }
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325 |
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326 | QString title;
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327 | m_query->exec(query);
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328 | while (m_query->next()) {
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329 | title = m_query->value(0).toString();
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330 | if (title.isEmpty()) // generate a title + corresponding path
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331 | title = keyword + QLatin1String(" : ") + m_query->value(3).toString();
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332 | linkMap.insertMulti(title, buildQUrl(m_query->value(1).toString(),
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333 | m_query->value(2).toString(), m_query->value(3).toString(),
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334 | m_query->value(4).toString()));
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335 | }
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336 | }
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337 |
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338 | void QHelpDBReader::linksForIdentifier(const QString &id,
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339 | const QStringList &filterAttributes,
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340 | QMap<QString, QUrl> &linkMap) const
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341 | {
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342 | if (!m_query)
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343 | return;
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344 |
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345 | QString query;
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346 | if (filterAttributes.isEmpty()) {
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347 | query = QString(QLatin1String("SELECT d.Title, f.Name, e.Name, d.Name, a.Anchor "
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348 | "FROM IndexTable a, FileNameTable d, FolderTable e, "
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349 | "NamespaceTable f WHERE a.FileId=d.FileId AND "
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350 | "d.FolderId=e.Id AND a.NamespaceId=f.Id AND a.Identifier='%1'"))
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351 | .arg(quote(id));
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352 | } else if (m_useAttributesCache) {
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353 | query = QString(QLatin1String("SELECT d.Title, f.Name, e.Name, d.Name, a.Anchor, a.Id "
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354 | "FROM IndexTable a,"
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355 | "FileNameTable d, FolderTable e, NamespaceTable f WHERE "
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356 | "a.FileId=d.FileId AND d.FolderId=e.Id "
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357 | "AND a.NamespaceId=f.Id AND a.Identifier='%1'"))
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358 | .arg(quote(id));
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359 | m_query->exec(query);
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360 | while (m_query->next()) {
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361 | if (m_indicesCache.contains(m_query->value(5).toInt())) {
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362 | linkMap.insertMulti(m_query->value(0).toString(), buildQUrl(m_query->value(1).toString(),
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363 | m_query->value(2).toString(), m_query->value(3).toString(),
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364 | m_query->value(4).toString()));
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365 | }
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366 | }
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367 | return;
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368 | } else {
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369 | query = QString(QLatin1String("SELECT d.Title, f.Name, e.Name, d.Name, a.Anchor "
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370 | "FROM IndexTable a, IndexFilterTable b, FilterAttributeTable c, "
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371 | "FileNameTable d, FolderTable e, NamespaceTable f "
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372 | "WHERE a.FileId=d.FileId AND d.FolderId=e.Id "
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373 | "AND a.NamespaceId=f.Id AND b.IndexId=a.Id AND b.FilterAttributeId=c.Id "
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374 | "AND a.Identifier='%1' AND c.Name='%2'")).arg(quote(id))
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375 | .arg(quote(filterAttributes.first()));
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376 | for (int i=0; i<filterAttributes.count(); ++i) {
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377 | query.append(QString(QLatin1String(" INTERSECT SELECT d.Title, f.Name, e.Name, "
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378 | "d.Name, a.Anchor FROM IndexTable a, IndexFilterTable b, "
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379 | "FilterAttributeTable c, FileNameTable d, "
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380 | "FolderTable e, NamespaceTable f WHERE "
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381 | "a.FileId=d.FileId AND d.FolderId=e.Id AND a.NamespaceId=f.Id "
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382 | "AND b.IndexId=a.Id AND b.FilterAttributeId=c.Id AND "
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383 | "a.Identifier='%1' AND c.Name='%2'")).arg(quote(id))
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384 | .arg(quote(filterAttributes.at(i))));
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385 | }
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386 | }
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387 |
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388 | m_query->exec(query);
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389 | while (m_query->next()) {
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390 | linkMap.insertMulti(m_query->value(0).toString(), buildQUrl(m_query->value(1).toString(),
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391 | m_query->value(2).toString(), m_query->value(3).toString(),
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392 | m_query->value(4).toString()));
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393 | }
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394 | }
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395 |
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396 | QUrl QHelpDBReader::buildQUrl(const QString &ns, const QString &folder,
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397 | const QString &relFileName, const QString &anchor) const
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398 | {
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399 | QUrl url;
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400 | url.setScheme(QLatin1String("qthelp"));
|
---|
401 | url.setAuthority(ns);
|
---|
402 | url.setPath(folder + QLatin1Char('/') + relFileName);
|
---|
403 | url.setFragment(anchor);
|
---|
404 | return url;
|
---|
405 | }
|
---|
406 |
|
---|
407 | QList<QByteArray> QHelpDBReader::contentsForFilter(const QStringList &filterAttributes) const
|
---|
408 | {
|
---|
409 | QList<QByteArray> contents;
|
---|
410 | if (!m_query)
|
---|
411 | return contents;
|
---|
412 |
|
---|
413 | //SELECT DISTINCT a.Data FROM ContentsTable a, ContentsFilterTable b, FilterAttributeTable c WHERE a.Id=b.ContentsId AND b.FilterAttributeId=c.Id AND c.Name='qt' INTERSECT SELECT DISTINCT a.Data FROM ContentsTable a, ContentsFilterTable b, FilterAttributeTable c WHERE a.Id=b.ContentsId AND b.FilterAttributeId=c.Id AND c.Name='3.3.8';
|
---|
414 |
|
---|
415 | QString query;
|
---|
416 | if (filterAttributes.isEmpty()) {
|
---|
417 | query = QLatin1String("SELECT Data from ContentsTable");
|
---|
418 | } else {
|
---|
419 | query = QString(QLatin1String("SELECT a.Data FROM ContentsTable a, "
|
---|
420 | "ContentsFilterTable b, FilterAttributeTable c "
|
---|
421 | "WHERE a.Id=b.ContentsId AND b.FilterAttributeId=c.Id "
|
---|
422 | "AND c.Name='%1'")).arg(quote(filterAttributes.first()));
|
---|
423 | for (int i=1; i<filterAttributes.count(); ++i) {
|
---|
424 | query.append(QString(QLatin1String(" INTERSECT SELECT a.Data FROM ContentsTable a, "
|
---|
425 | "ContentsFilterTable b, FilterAttributeTable c "
|
---|
426 | "WHERE a.Id=b.ContentsId AND b.FilterAttributeId=c.Id "
|
---|
427 | "AND c.Name='%1'")).arg(quote(filterAttributes.at(i))));
|
---|
428 | }
|
---|
429 | }
|
---|
430 |
|
---|
431 | m_query->exec(query);
|
---|
432 | while (m_query->next()) {
|
---|
433 | contents.append(m_query->value(0).toByteArray());
|
---|
434 | }
|
---|
435 | return contents;
|
---|
436 | }
|
---|
437 |
|
---|
438 | QUrl QHelpDBReader::urlOfPath(const QString &relativePath) const
|
---|
439 | {
|
---|
440 | QUrl url;
|
---|
441 | if (!m_query)
|
---|
442 | return url;
|
---|
443 |
|
---|
444 | m_query->exec(QLatin1String("SELECT a.Name, b.Name FROM NamespaceTable a, "
|
---|
445 | "FolderTable b WHERE a.id=b.NamespaceId and a.Id=1"));
|
---|
446 | if (m_query->next()) {
|
---|
447 | QString rp = relativePath;
|
---|
448 | QString anchor;
|
---|
449 | int i = rp.indexOf(QLatin1Char('#'));
|
---|
450 | if (i > -1) {
|
---|
451 | rp = relativePath.left(i);
|
---|
452 | anchor = relativePath.mid(i+1);
|
---|
453 | }
|
---|
454 | url = buildQUrl(m_query->value(0).toString(),
|
---|
455 | m_query->value(1).toString(), rp, anchor);
|
---|
456 | }
|
---|
457 | return url;
|
---|
458 | }
|
---|
459 |
|
---|
460 | QStringList QHelpDBReader::files(const QStringList &filterAttributes,
|
---|
461 | const QString &extensionFilter) const
|
---|
462 | {
|
---|
463 | QStringList lst;
|
---|
464 | if (!m_query)
|
---|
465 | return lst;
|
---|
466 |
|
---|
467 | QString query;
|
---|
468 | QString extension;
|
---|
469 | if (!extensionFilter.isEmpty())
|
---|
470 | extension = QString(QLatin1String("AND b.Name like \'%.%1\'")).arg(extensionFilter);
|
---|
471 |
|
---|
472 | if (filterAttributes.isEmpty()) {
|
---|
473 | query = QString(QLatin1String("SELECT a.Name, b.Name FROM FolderTable a, "
|
---|
474 | "FileNameTable b WHERE b.FolderId=a.Id %1"))
|
---|
475 | .arg(extension);
|
---|
476 | } else {
|
---|
477 | query = QString(QLatin1String("SELECT a.Name, b.Name FROM FolderTable a, "
|
---|
478 | "FileNameTable b, FileFilterTable c, FilterAttributeTable d "
|
---|
479 | "WHERE b.FolderId=a.Id AND b.FileId=c.FileId "
|
---|
480 | "AND c.FilterAttributeId=d.Id AND d.Name=\'%1\' %2"))
|
---|
481 | .arg(quote(filterAttributes.first())).arg(extension);
|
---|
482 | for (int i=1; i<filterAttributes.count(); ++i) {
|
---|
483 | query.append(QString(QLatin1String(" INTERSECT SELECT a.Name, b.Name FROM "
|
---|
484 | "FolderTable a, FileNameTable b, FileFilterTable c, "
|
---|
485 | "FilterAttributeTable d WHERE b.FolderId=a.Id AND "
|
---|
486 | "b.FileId=c.FileId AND c.FilterAttributeId=d.Id AND "
|
---|
487 | "d.Name=\'%1\' %2")).arg(quote(filterAttributes.at(i)))
|
---|
488 | .arg(extension));
|
---|
489 | }
|
---|
490 | }
|
---|
491 | m_query->exec(query);
|
---|
492 | while (m_query->next()) {
|
---|
493 | lst.append(m_query->value(0).toString() + QLatin1Char('/')
|
---|
494 | + m_query->value(1).toString());
|
---|
495 | }
|
---|
496 |
|
---|
497 | return lst;
|
---|
498 | }
|
---|
499 |
|
---|
500 | QVariant QHelpDBReader::metaData(const QString &name) const
|
---|
501 | {
|
---|
502 | QVariant v;
|
---|
503 | if (!m_query)
|
---|
504 | return v;
|
---|
505 |
|
---|
506 | m_query->prepare(QLatin1String("SELECT COUNT(Value), Value FROM MetaDataTable "
|
---|
507 | "WHERE Name=?"));
|
---|
508 | m_query->bindValue(0, name);
|
---|
509 | if (m_query->exec() && m_query->next()
|
---|
510 | && m_query->value(0).toInt() == 1)
|
---|
511 | v = m_query->value(1);
|
---|
512 | return v;
|
---|
513 | }
|
---|
514 |
|
---|
515 | QString QHelpDBReader::mergeList(const QStringList &list) const
|
---|
516 | {
|
---|
517 | QString str;
|
---|
518 | foreach (QString s, list)
|
---|
519 | str.append(QLatin1Char('\'') + quote(s) + QLatin1String("\', "));
|
---|
520 | if (str.endsWith(QLatin1String(", ")))
|
---|
521 | str = str.left(str.length()-2);
|
---|
522 | return str;
|
---|
523 | }
|
---|
524 |
|
---|
525 | QString QHelpDBReader::quote(const QString &string) const
|
---|
526 | {
|
---|
527 | QString s = string;
|
---|
528 | s.replace(QLatin1Char('\''), QLatin1String("\'\'"));
|
---|
529 | return s;
|
---|
530 | }
|
---|
531 |
|
---|
532 | QSet<int> QHelpDBReader::indexIds(const QStringList &attributes) const
|
---|
533 | {
|
---|
534 | QSet<int> ids;
|
---|
535 |
|
---|
536 | if (attributes.isEmpty())
|
---|
537 | return ids;
|
---|
538 |
|
---|
539 | QString query = QString(QLatin1String("SELECT a.IndexId FROM IndexFilterTable a, "
|
---|
540 | "FilterAttributeTable b WHERE a.FilterAttributeId=b.Id "
|
---|
541 | "AND b.Name='%1'")).arg(attributes.first());
|
---|
542 | for (int i=0; i<attributes.count(); ++i) {
|
---|
543 | query.append(QString(QLatin1String(" INTERSECT SELECT a.IndexId FROM "
|
---|
544 | "IndexFilterTable a, FilterAttributeTable b WHERE "
|
---|
545 | "a.FilterAttributeId=b.Id AND b.Name='%1'"))
|
---|
546 | .arg(attributes.at(i)));
|
---|
547 | }
|
---|
548 |
|
---|
549 | if (!m_query->exec(query))
|
---|
550 | return ids;
|
---|
551 |
|
---|
552 | while (m_query->next())
|
---|
553 | ids.insert(m_query->value(0).toInt());
|
---|
554 |
|
---|
555 | return ids;
|
---|
556 | }
|
---|
557 |
|
---|
558 | bool QHelpDBReader::createAttributesCache(const QStringList &attributes,
|
---|
559 | const QSet<int> &indexIds)
|
---|
560 | {
|
---|
561 | m_useAttributesCache = false;
|
---|
562 |
|
---|
563 | if (attributes.count() < 2) {
|
---|
564 | m_viewAttributes.clear();
|
---|
565 | return true;
|
---|
566 | }
|
---|
567 |
|
---|
568 | bool needUpdate = !m_viewAttributes.count();
|
---|
569 |
|
---|
570 | foreach (QString s, attributes)
|
---|
571 | m_viewAttributes.remove(s);
|
---|
572 |
|
---|
573 | if (m_viewAttributes.count() || needUpdate) {
|
---|
574 | m_viewAttributes.clear();
|
---|
575 | m_indicesCache = indexIds;
|
---|
576 | }
|
---|
577 | foreach (QString s, attributes)
|
---|
578 | m_viewAttributes.insert(s);
|
---|
579 | m_useAttributesCache = true;
|
---|
580 | return true;
|
---|
581 | }
|
---|
582 |
|
---|
583 | QT_END_NAMESPACE
|
---|