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author | Slávek Banko <slavek.banko@axis.cz> | 2014-05-24 16:19:30 +0200 |
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committer | Slávek Banko <slavek.banko@axis.cz> | 2014-05-24 16:19:30 +0200 |
commit | d738b733bddde7b7c17d990515c1e3c9eb22cf93 (patch) | |
tree | 54862e7b89d3e99997e543f302b2dd0ba5dfda2d | |
parent | 456dc48a97b1cd3ce8eb94eb6c61fa1948d3d6fa (diff) | |
download | qt3-d738b733bddde7b7c17d990515c1e3c9eb22cf93.tar.gz qt3-d738b733bddde7b7c17d990515c1e3c9eb22cf93.zip |
Add sqlite3 plugin
-rw-r--r-- | plugins/src/sqldrivers/sqldrivers.pro | 1 | ||||
-rw-r--r-- | plugins/src/sqldrivers/sqlite3/smain.cpp | 70 | ||||
-rw-r--r-- | plugins/src/sqldrivers/sqlite3/sqlite3.pro | 33 | ||||
-rw-r--r-- | src/sql/drivers/sqlite3/qsql_sqlite3.cpp | 494 | ||||
-rw-r--r-- | src/sql/drivers/sqlite3/qsql_sqlite3.h | 90 | ||||
-rw-r--r-- | src/sql/qsqldatabase.cpp | 12 | ||||
-rw-r--r-- | src/sql/qt_sql.pri | 6 |
7 files changed, 706 insertions, 0 deletions
diff --git a/plugins/src/sqldrivers/sqldrivers.pro b/plugins/src/sqldrivers/sqldrivers.pro index 616b23f..0f2e322 100644 --- a/plugins/src/sqldrivers/sqldrivers.pro +++ b/plugins/src/sqldrivers/sqldrivers.pro @@ -7,4 +7,5 @@ contains(sql-plugins, tds) : SUBDIRS += tds contains(sql-plugins, oci) : SUBDIRS += oci contains(sql-plugins, db2) : SUBDIRS += db2 contains(sql-plugins, sqlite) : SUBDIRS += sqlite +contains(sql-plugins, sqlite) : SUBDIRS += sqlite3 contains(sql-plugins, ibase) : SUBDIRS += ibase diff --git a/plugins/src/sqldrivers/sqlite3/smain.cpp b/plugins/src/sqldrivers/sqlite3/smain.cpp new file mode 100644 index 0000000..1124bb3 --- /dev/null +++ b/plugins/src/sqldrivers/sqlite3/smain.cpp @@ -0,0 +1,70 @@ +/**************************************************************************** +** +** Implementation of SQLite driver plugin +** +** Created : 031106 +** +** Copyright (C) 1992-2003 Trolltech AS. All rights reserved. +** +** This file is part of the sql module of the Qt GUI Toolkit. +** +** This file may be distributed under the terms of the Q Public License +** as defined by Trolltech AS of Norway and appearing in the file +** LICENSE.QPL included in the packaging of this file. +** +** This file may be distributed and/or modified under the terms of the +** GNU General Public License version 2 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. +** +** Licensees holding valid Qt Enterprise Edition licenses may use this +** file in accordance with the Qt Commercial License Agreement provided +** with the Software. +** +** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE +** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. +** +** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for +** information about Qt Commercial License Agreements. +** See http://www.trolltech.com/qpl/ for QPL licensing information. +** See http://www.trolltech.com/gpl/ for GPL licensing information. +** +** Contact info@trolltech.com if any conditions of this licensing are +** not clear to you. +** +**********************************************************************/ + +#include <qsqldriverplugin.h> +#include "../../../../src/sql/drivers/sqlite3/qsql_sqlite3.h" + +class QSQLite3DriverPlugin : public QSqlDriverPlugin +{ +public: + QSQLite3DriverPlugin(); + + QSqlDriver* create( const QString & ); + QStringList keys() const; +}; + +QSQLite3DriverPlugin::QSQLite3DriverPlugin() + : QSqlDriverPlugin() +{ +} + +QSqlDriver* QSQLite3DriverPlugin::create( const QString &name ) +{ + if ( name == "QSQLITE3" ) { + QSQLite3Driver* driver = new QSQLite3Driver(); + return driver; + } + return 0; +} + +QStringList QSQLite3DriverPlugin::keys() const +{ + QStringList l; + l << "QSQLITE3"; + return l; +} + +Q_EXPORT_PLUGIN( QSQLite3DriverPlugin ) diff --git a/plugins/src/sqldrivers/sqlite3/sqlite3.pro b/plugins/src/sqldrivers/sqlite3/sqlite3.pro new file mode 100644 index 0000000..c3184f9 --- /dev/null +++ b/plugins/src/sqldrivers/sqlite3/sqlite3.pro @@ -0,0 +1,33 @@ +TEMPLATE = lib +TARGET = qsqlite3 + +CONFIG += qt plugin +DESTDIR = ../../../sqldrivers + +HEADERS = ../../../../src/sql/drivers/sqlite3/qsql_sqlite3.h +SOURCES = smain.cpp \ + ../../../../src/sql/drivers/sqlite3/qsql_sqlite3.cpp + +unix { + OBJECTS_DIR = .obj + !contains( LIBS, .*sqlite3.* ) { + LIBS *= -lsqlite3 + } +} + +win32 { + OBJECTS_DIR = obj + LIBS *= sqlite3.lib +# win32-msvc: { +# LIBS *= delayimp.lib +# QMAKE_LFLAGS += /DELAYLOAD:sqlite3.dll +# } +# win32-borland: { +# QMAKE_LFLAGS += /dsqlite3.dll +# } +} + +REQUIRES = sql + +target.path += $$plugins.path/sqldrivers +INSTALLS += target diff --git a/src/sql/drivers/sqlite3/qsql_sqlite3.cpp b/src/sql/drivers/sqlite3/qsql_sqlite3.cpp new file mode 100644 index 0000000..0bd20d9 --- /dev/null +++ b/src/sql/drivers/sqlite3/qsql_sqlite3.cpp @@ -0,0 +1,494 @@ +/**************************************************************************** +** +** Implementation of SQLite driver classes. +** +** Copyright (C) 1992-2003 Trolltech AS. All rights reserved. +** +** This file is part of the sql module of the Qt GUI Toolkit. +** EDITIONS: FREE, ENTERPRISE +** +** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE +** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. +** +****************************************************************************/ + +#include "qsql_sqlite3.h" + +#include <qdatetime.h> +#include <qvaluevector.h> +#include <qregexp.h> +#include <qfile.h> +#include <sqlite3.h> + +#if (QT_VERSION-0 < 0x030200) +# include <qvector.h> +# if !defined Q_WS_WIN32 +# include <unistd.h> +# endif +#else +# include <qptrvector.h> +# if !defined Q_WS_WIN32 +# include <unistd.h> +# endif +#endif + +typedef struct sqlite3_stmt sqlite3_stmt; + +#define QSQLITE3_DRIVER_NAME "QSQLITE3" + +static QVariant::Type qSqliteType(int tp) +{ + switch (tp) { + case SQLITE_INTEGER: + return QVariant::Int; + case SQLITE_FLOAT: + return QVariant::Double; + case SQLITE_BLOB: + return QVariant::ByteArray; + case SQLITE_TEXT: + default: + return QVariant::String; + } +} + +static QSqlError qMakeError(sqlite3 *access, const QString &descr, QSqlError::Type type, + int errorCode = -1) +{ + return QSqlError(descr, + QString::fromUtf8(sqlite3_errmsg(access)), + type, errorCode); +} + +class QSQLite3DriverPrivate +{ +public: + QSQLite3DriverPrivate(); + sqlite3 *access; + bool utf8; +}; + +QSQLite3DriverPrivate::QSQLite3DriverPrivate() : access(0) +{ + utf8 = true; +} + +class QSQLite3ResultPrivate +{ +public: + QSQLite3ResultPrivate(QSQLite3Result *res); + void cleanup(); + bool fetchNext(QtSqlCachedResult::RowCache *row); + bool isSelect(); + // initializes the recordInfo and the cache + void initColumns(QtSqlCachedResult::RowCache **row = 0); + void finalize(); + + QSQLite3Result* q; + sqlite3 *access; + + sqlite3_stmt *stmt; + + uint skippedStatus: 1; // the status of the fetchNext() that's skipped + QtSqlCachedResult::RowCache *skipRow; + + uint utf8: 1; + QSqlRecord rInf; +}; + +static const uint initial_cache_size = 128; + +QSQLite3ResultPrivate::QSQLite3ResultPrivate(QSQLite3Result* res) : q(res), access(0), + stmt(0), skippedStatus(false), skipRow(0), utf8(false) +{ +} + +void QSQLite3ResultPrivate::cleanup() +{ + finalize(); + rInf.clear(); + skippedStatus = false; + delete skipRow; + skipRow = 0; + q->setAt(QSql::BeforeFirst); + q->setActive(false); + q->cleanup(); +} + +void QSQLite3ResultPrivate::finalize() +{ + if (!stmt) + return; + + sqlite3_finalize(stmt); + stmt = 0; +} + +// called on first fetch +void QSQLite3ResultPrivate::initColumns(QtSqlCachedResult::RowCache** row) +{ + rInf.clear(); + + int nCols = sqlite3_column_count(stmt); + if (nCols <= 0) + return; + + q->init(nCols); + + for (int i = 0; i < nCols; ++i) { + QString colName = QString::fromUtf8(sqlite3_column_name(stmt, i)); + + int dotIdx = colName.findRev('.'); + rInf.append(QSqlField(colName.mid(dotIdx == -1 ? 0 : dotIdx + 1), + qSqliteType(sqlite3_column_type(stmt, i)))); + } + + // skip the first fetch + if (row && !*row) { + *row = new QtSqlCachedResult::RowCache(nCols); + skipRow = *row; + } +} + +bool QSQLite3ResultPrivate::fetchNext(QtSqlCachedResult::RowCache* row) +{ + int res; + unsigned int i; + + if (skipRow) { + // already fetched + if (row) + *row = *skipRow; + delete skipRow; + skipRow = 0; + return skippedStatus; + } + + if (!stmt) + return false; + + // keep trying while busy, wish I could implement this better. + while ((res = sqlite3_step(stmt)) == SQLITE_BUSY) { + // sleep instead requesting result again immidiately. +#if defined Q_OS_WIN + Sleep(1000); +#else + sleep(1); +#endif + } + + switch(res) { + case SQLITE_ROW: + // check to see if should fill out columns + if (rInf.isEmpty()) + // must be first call. + initColumns(&row); + if (!row) + return true; + for (i = 0; i < rInf.count(); ++i) + // todo - handle other types + (*row)[i] = QString::fromUtf8((char *)(sqlite3_column_text(stmt, i))); + // values[i + idx] = utf8 ? QString::fromUtf8(fvals[i]) : QString::fromAscii(fvals[i]); + return true; + case SQLITE_DONE: + if (rInf.isEmpty()) + // must be first call. + initColumns(&row); + q->setAt(QSql::AfterLast); + return false; + case SQLITE_ERROR: + case SQLITE_MISUSE: + default: + // something wrong, don't get col info, but still return false + q->setLastError(qMakeError(access, "Unable to fetch row", QSqlError::Connection, res)); + finalize(); + q->setAt(QSql::AfterLast); + return false; + } + return false; +} + +QSQLite3Result::QSQLite3Result(const QSQLite3Driver* db) + : QtSqlCachedResult(db) +{ + d = new QSQLite3ResultPrivate(this); + d->access = db->d->access; +} + +QSQLite3Result::~QSQLite3Result() +{ + d->cleanup(); + delete d; +} + +/* + Execute \a query. +*/ +bool QSQLite3Result::reset (const QString &query) +{ + // this is where we build a query. + if (!driver() || !driver()->isOpen() || driver()->isOpenError()) + return false; + + d->cleanup(); + + setSelect(false); + + int res = sqlite3_prepare(d->access, query.utf8().data(), (query.length() + 1) * sizeof(QChar), + &d->stmt, 0); + + if (res != SQLITE_OK) { + setLastError(qMakeError(d->access, "Unable to execute statement", QSqlError::Statement, res)); + d->finalize(); + return false; + } + + d->skippedStatus = d->fetchNext(0); + + setSelect(!d->rInf.isEmpty()); + setActive(true); + return true; +} + +bool QSQLite3Result::gotoNext(QtSqlCachedResult::RowCache* row) +{ + return d->fetchNext(row); +} + +int QSQLite3Result::size() +{ + return -1; +} + +int QSQLite3Result::numRowsAffected() +{ + return sqlite3_changes(d->access); +} + +///////////////////////////////////////////////////////// + +QSQLite3Driver::QSQLite3Driver(QObject * parent, const char *name) + : QSqlDriver(parent, name) +{ + d = new QSQLite3DriverPrivate(); +} + +QSQLite3Driver::QSQLite3Driver(sqlite3 *connection, QObject *parent, const char *name) + : QSqlDriver(parent, name) +{ + d = new QSQLite3DriverPrivate(); + d->access = connection; + setOpen(true); + setOpenError(false); +} + + +QSQLite3Driver::~QSQLite3Driver() +{ + delete d; +} + +bool QSQLite3Driver::hasFeature(DriverFeature f) const +{ + switch (f) { + case Transactions: + case Unicode: + case BLOB: + return true; + default: + break; + } + return false; +} + +/* + SQLite dbs have no user name, passwords, hosts or ports. + just file names. +*/ +bool QSQLite3Driver::open(const QString & db, const QString &, const QString &, const QString &, int, const QString &) +{ + if (isOpen()) + close(); + + if (db.isEmpty()) + return false; + + if (sqlite3_open(QFile::encodeName(db), &d->access) == SQLITE_OK) { + setOpen(true); + setOpenError(false); + return true; + } else { + setLastError(qMakeError(d->access, "Error opening database", + QSqlError::Connection)); + setOpenError(true); + return false; + } +} + +void QSQLite3Driver::close() +{ + if (isOpen()) { + if (sqlite3_close(d->access) != SQLITE_OK) + setLastError(qMakeError(d->access, "Error closing database", + QSqlError::Connection)); + d->access = 0; + setOpen(false); + setOpenError(false); + } +} + +QSqlQuery QSQLite3Driver::createQuery() const +{ + return QSqlQuery(new QSQLite3Result(this)); +} + +bool QSQLite3Driver::beginTransaction() +{ + if (!isOpen() || isOpenError()) + return false; + + QSqlQuery q(createQuery()); + if (!q.exec("BEGIN")) { + setLastError(QSqlError("Unable to begin transaction", + q.lastError().databaseText(), QSqlError::Transaction)); + return false; + } + + return true; +} + +bool QSQLite3Driver::commitTransaction() +{ + if (!isOpen() || isOpenError()) + return false; + + QSqlQuery q(createQuery()); + if (!q.exec("COMMIT")) { + setLastError(QSqlError("Unable to begin transaction", + q.lastError().databaseText(), QSqlError::Transaction)); + return false; + } + + return true; +} + +bool QSQLite3Driver::rollbackTransaction() +{ + if (!isOpen() || isOpenError()) + return false; + + QSqlQuery q(createQuery()); + if (!q.exec("ROLLBACK")) { + setLastError(QSqlError("Unable to begin transaction", + q.lastError().databaseText(), QSqlError::Transaction)); + return false; + } + + return true; +} + +QStringList QSQLite3Driver::tables(const QString &typeName) const +{ + QStringList res; + if (!isOpen()) + return res; + int type = typeName.toInt(); + + QSqlQuery q = createQuery(); + q.setForwardOnly(TRUE); +#if (QT_VERSION-0 >= 0x030200) + if ((type & (int)QSql::Tables) && (type & (int)QSql::Views)) + q.exec("SELECT name FROM sqlite_master WHERE type='table' OR type='view'"); + else if (typeName.isEmpty() || (type & (int)QSql::Tables)) + q.exec("SELECT name FROM sqlite_master WHERE type='table'"); + else if (type & (int)QSql::Views) + q.exec("SELECT name FROM sqlite_master WHERE type='view'"); +#else + q.exec("SELECT name FROM sqlite_master WHERE type='table' OR type='view'"); +#endif + + + if (q.isActive()) { + while(q.next()) + res.append(q.value(0).toString()); + } + +#if (QT_VERSION-0 >= 0x030200) + if (type & (int)QSql::SystemTables) { + // there are no internal tables beside this one: + res.append("sqlite_master"); + } +#endif + + return res; +} + +QSqlIndex QSQLite3Driver::primaryIndex(const QString &tblname) const +{ + QSqlRecordInfo rec(recordInfo(tblname)); // expensive :( + + if (!isOpen()) + return QSqlIndex(); + + QSqlQuery q = createQuery(); + q.setForwardOnly(TRUE); + // finrst find a UNIQUE INDEX + q.exec("PRAGMA index_list('" + tblname + "');"); + QString indexname; + while(q.next()) { + if (q.value(2).toInt()==1) { + indexname = q.value(1).toString(); + break; + } + } + if (indexname.isEmpty()) + return QSqlIndex(); + + q.exec("PRAGMA index_info('" + indexname + "');"); + + QSqlIndex index(indexname); + while(q.next()) { + QString name = q.value(2).toString(); + QSqlVariant::Type type = QSqlVariant::Invalid; + if (rec.contains(name)) + type = rec.find(name).type(); + index.append(QSqlField(name, type)); + } + return index; +} + +QSqlRecordInfo QSQLite3Driver::recordInfo(const QString &tbl) const +{ + if (!isOpen()) + return QSqlRecordInfo(); + + QSqlQuery q = createQuery(); + q.setForwardOnly(TRUE); + q.exec("SELECT * FROM " + tbl + " LIMIT 1"); + return recordInfo(q); +} + +QSqlRecord QSQLite3Driver::record(const QString &tblname) const +{ + if (!isOpen()) + return QSqlRecord(); + + return recordInfo(tblname).toRecord(); +} + +QSqlRecord QSQLite3Driver::record(const QSqlQuery& query) const +{ + if (query.isActive() && query.driver() == this) { + QSQLite3Result* result = (QSQLite3Result*)query.result(); + return result->d->rInf; + } + return QSqlRecord(); +} + +QSqlRecordInfo QSQLite3Driver::recordInfo(const QSqlQuery& query) const +{ + if (query.isActive() && query.driver() == this) { + QSQLite3Result* result = (QSQLite3Result*)query.result(); + return QSqlRecordInfo(result->d->rInf); + } + return QSqlRecordInfo(); +} diff --git a/src/sql/drivers/sqlite3/qsql_sqlite3.h b/src/sql/drivers/sqlite3/qsql_sqlite3.h new file mode 100644 index 0000000..e92022f --- /dev/null +++ b/src/sql/drivers/sqlite3/qsql_sqlite3.h @@ -0,0 +1,90 @@ +/**************************************************************************** +** +** Definition of SQLite driver classes. +** +** Copyright (C) 1992-2003 Trolltech AS. All rights reserved. +** +** This file is part of the sql module of the Qt GUI Toolkit. +** EDITIONS: FREE, ENTERPRISE +** +** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE +** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. +** +****************************************************************************/ + +#ifndef QSQL_SQLITE3_H +#define QSQL_SQLITE3_H + +#include <qsqldriver.h> +#include <qsqlresult.h> +#include <qsqlrecord.h> +#include <qsqlindex.h> +#include "qsqlcachedresult.h" + +#if (QT_VERSION-0 >= 0x030200) +typedef QVariant QSqlVariant; +#endif + +#if defined (Q_OS_WIN32) +# include <qt_windows.h> +#endif + +class QSQLite3DriverPrivate; +class QSQLite3ResultPrivate; +class QSQLite3Driver; +struct sqlite3; + +class QSQLite3Result : public QtSqlCachedResult +{ + friend class QSQLite3Driver; + friend class QSQLite3ResultPrivate; +public: + QSQLite3Result(const QSQLite3Driver* db); + ~QSQLite3Result(); + +protected: + bool gotoNext(QtSqlCachedResult::RowCache* row); + bool reset (const QString& query); + int size(); + int numRowsAffected(); + +private: + QSQLite3ResultPrivate* d; +}; + +class QSQLite3Driver : public QSqlDriver +{ + friend class QSQLite3Result; +public: + QSQLite3Driver(QObject *parent = 0, const char *name = 0); + QSQLite3Driver(sqlite3 *connection, QObject *parent = 0, const char *name = 0); + ~QSQLite3Driver(); + bool hasFeature(DriverFeature f) const; + bool open(const QString & db, + const QString & user, + const QString & password, + const QString & host, + int port, + const QString & connOpts); + bool open( const QString & db, + const QString & user, + const QString & password, + const QString & host, + int port ) { return open (db, user, password, host, port, QString()); } + void close(); + QSqlQuery createQuery() const; + bool beginTransaction(); + bool commitTransaction(); + bool rollbackTransaction(); + QStringList tables(const QString &user) const; + + QSqlRecord record(const QString& tablename) const; + QSqlRecordInfo recordInfo(const QString& tablename) const; + QSqlIndex primaryIndex(const QString &table) const; + QSqlRecord record(const QSqlQuery& query) const; + QSqlRecordInfo recordInfo(const QSqlQuery& query) const; + +private: + QSQLite3DriverPrivate* d; +}; +#endif diff --git a/src/sql/qsqldatabase.cpp b/src/sql/qsqldatabase.cpp index af069a4..8a4f885 100644 --- a/src/sql/qsqldatabase.cpp +++ b/src/sql/qsqldatabase.cpp @@ -68,6 +68,9 @@ #ifdef QT_SQL_SQLITE #include "drivers/sqlite/qsql_sqlite.h" #endif +#ifdef QT_SQL_SQLITE3 +#include "drivers/sqlite3/qsql_sqlite3.h" +#endif #ifdef QT_SQL_IBASE #include "drivers/ibase/qsql_ibase.h" #endif @@ -525,6 +528,10 @@ QStringList QSqlDatabase::drivers() if ( !l.contains( "QSQLITE" ) ) l << "QSQLITE"; #endif +#ifdef QT_SQL_SQLITE3 + if ( !l.contains( "QSQLITE3" ) ) + l << "QSQLITE3"; +#endif #ifdef QT_SQL_IBASE if ( !l.contains( "QIBASE" ) ) l << "QIBASE"; @@ -665,6 +672,11 @@ void QSqlDatabase::init( const QString& type, const QString& ) d->driver = new QSQLiteDriver(); #endif +#ifdef QT_SQL_SQLITE3 + if ( type == "QSQLITE3" ) + d->driver = new QSQLite3Driver(); +#endif + #ifdef QT_SQL_IBASE if ( type == "QIBASE" ) d->driver = new QIBaseDriver(); diff --git a/src/sql/qt_sql.pri b/src/sql/qt_sql.pri index 17a6d40..5ccbf3f 100644 --- a/src/sql/qt_sql.pri +++ b/src/sql/qt_sql.pri @@ -250,5 +250,11 @@ sql { SOURCES += $$SQL_CPP/drivers/sqlite/qsql_sqlite.cpp DEFINES += QT_SQL_SQLITE } + + contains(sql-drivers, sqlite3) { + HEADERS += $$SQL_CPP/drivers/sqlite3/qsql_sqlite3.h + SOURCES += $$SQL_CPP/drivers/sqlite3/qsql_sqlite3.cpp + DEFINES += QT_SQL_SQLITE3 + } } |