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koffice/kexi/kexidb/utils.cpp

1263 lines
36 KiB

/* This file is part of the KDE project
Copyright (C) 2004-2007 Jaroslaw Staniek <js@iidea.pl>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "utils.h"
#include "cursor.h"
#include "drivermanager.h"
#include "lookupfieldschema.h"
#include <qmap.h>
#include <qthread.h>
#include <qdom.h>
#include <qintdict.h>
#include <qbuffer.h>
#include <kdebug.h>
#include <klocale.h>
#include <kstaticdeleter.h>
#include <kmessagebox.h>
#include <klocale.h>
#include <kiconloader.h>
#include "utils_p.h"
using namespace KexiDB;
//! Cache
struct TypeCache
{
QMap< uint, TypeGroupList > tlist;
QMap< uint, QStringList > nlist;
QMap< uint, QStringList > slist;
QMap< uint, Field::Type > def_tlist;
};
static KStaticDeleter<TypeCache> KexiDB_typeCacheDeleter;
TypeCache *KexiDB_typeCache = 0;
static void initList()
{
KexiDB_typeCacheDeleter.setObject( KexiDB_typeCache, new TypeCache() );
for (uint t=0; t<=KexiDB::Field::LastType; t++) {
const uint tg = KexiDB::Field::typeGroup( t );
TypeGroupList list;
QStringList name_list, str_list;
if (KexiDB_typeCache->tlist.find( tg )!=KexiDB_typeCache->tlist.end()) {
list = KexiDB_typeCache->tlist[ tg ];
name_list = KexiDB_typeCache->nlist[ tg ];
str_list = KexiDB_typeCache->slist[ tg ];
}
list+= t;
name_list += KexiDB::Field::typeName( t );
str_list += KexiDB::Field::typeString( t );
KexiDB_typeCache->tlist[ tg ] = list;
KexiDB_typeCache->nlist[ tg ] = name_list;
KexiDB_typeCache->slist[ tg ] = str_list;
}
KexiDB_typeCache->def_tlist[ Field::InvalidGroup ] = Field::InvalidType;
KexiDB_typeCache->def_tlist[ Field::TextGroup ] = Field::Text;
KexiDB_typeCache->def_tlist[ Field::IntegerGroup ] = Field::Integer;
KexiDB_typeCache->def_tlist[ Field::FloatGroup ] = Field::Double;
KexiDB_typeCache->def_tlist[ Field::BooleanGroup ] = Field::Boolean;
KexiDB_typeCache->def_tlist[ Field::DateTimeGroup ] = Field::Date;
KexiDB_typeCache->def_tlist[ Field::BLOBGroup ] = Field::BLOB;
}
const TypeGroupList KexiDB::typesForGroup(KexiDB::Field::TypeGroup typeGroup)
{
if (!KexiDB_typeCache)
initList();
return KexiDB_typeCache->tlist[ typeGroup ];
}
QStringList KexiDB::typeNamesForGroup(KexiDB::Field::TypeGroup typeGroup)
{
if (!KexiDB_typeCache)
initList();
return KexiDB_typeCache->nlist[ typeGroup ];
}
QStringList KexiDB::typeStringsForGroup(KexiDB::Field::TypeGroup typeGroup)
{
if (!KexiDB_typeCache)
initList();
return KexiDB_typeCache->slist[ typeGroup ];
}
KexiDB::Field::Type KexiDB::defaultTypeForGroup(KexiDB::Field::TypeGroup typeGroup)
{
if (!KexiDB_typeCache)
initList();
return (typeGroup <= Field::LastTypeGroup) ? KexiDB_typeCache->def_tlist[ typeGroup ] : Field::InvalidType;
}
void KexiDB::getHTMLErrorMesage(Object* obj, QString& msg, QString &details)
{
Connection *conn = 0;
if (!obj || !obj->error()) {
if (dynamic_cast<Cursor*>(obj)) {
conn = dynamic_cast<Cursor*>(obj)->connection();
obj = conn;
}
else {
return;
}
}
// if (dynamic_cast<Connection*>(obj)) {
// conn = dynamic_cast<Connection*>(obj);
//}
if (!obj || !obj->error())
return;
//lower level message is added to the details, if there is alread message specified
if (!obj->msgTitle().isEmpty())
msg += "<p>" + obj->msgTitle();
if (msg.isEmpty())
msg = "<p>" + obj->errorMsg();
else
details += "<p>" + obj->errorMsg();
if (!obj->serverErrorMsg().isEmpty())
details += "<p><b><nobr>" +i18n("Message from server:") + "</nobr></b><br>" + obj->serverErrorMsg();
if (!obj->recentSQLString().isEmpty())
details += "<p><b><nobr>" +i18n("SQL statement:") + QString("</nobr></b><br><tt>%1</tt>").arg(obj->recentSQLString());
int serverResult;
QString serverResultName;
if (obj->serverResult()!=0) {
serverResult = obj->serverResult();
serverResultName = obj->serverResultName();
}
else {
serverResult = obj->previousServerResult();
serverResultName = obj->previousServerResultName();
}
if (!serverResultName.isEmpty())
details += (QString("<p><b><nobr>")+i18n("Server result name:")+"</nobr></b><br>"+serverResultName);
if (!details.isEmpty()
&& (!obj->serverErrorMsg().isEmpty() || !obj->recentSQLString().isEmpty() || !serverResultName.isEmpty() || serverResult!=0) )
{
details += (QString("<p><b><nobr>")+i18n("Server result number:")+"</nobr></b><br>"+QString::number(serverResult));
}
if (!details.isEmpty() && !details.startsWith("<qt>")) {
if (details.startsWith("<p>"))
details = QString::fromLatin1("<qt>")+details;
else
details = QString::fromLatin1("<qt><p>")+details;
}
}
void KexiDB::getHTMLErrorMesage(Object* obj, QString& msg)
{
getHTMLErrorMesage(obj, msg, msg);
}
void KexiDB::getHTMLErrorMesage(Object* obj, ResultInfo *result)
{
getHTMLErrorMesage(obj, result->msg, result->desc);
}
int KexiDB::idForObjectName( Connection &conn, const QString& objName, int objType )
{
RowData data;
if (true!=conn.querySingleRecord(QString("select o_id from kexi__objects where lower(o_name)='%1' and o_type=%2")
.arg(objName.lower()).arg(objType), data))
return 0;
bool ok;
int id = data[0].toInt(&ok);
return ok ? id : 0;
}
//-----------------------------------------
TableOrQuerySchema::TableOrQuerySchema(Connection *conn, const QCString& name)
: m_name(name)
{
m_table = conn->tableSchema(QString(name));
m_query = m_table ? 0 : conn->querySchema(QString(name));
if (!m_table && !m_query)
KexiDBWarn << "TableOrQuery(FieldList &tableOrQuery) : "
" tableOrQuery is neither table nor query!" << endl;
}
TableOrQuerySchema::TableOrQuerySchema(Connection *conn, const QCString& name, bool table)
: m_name(name)
, m_table(table ? conn->tableSchema(QString(name)) : 0)
, m_query(table ? 0 : conn->querySchema(QString(name)))
{
if (table && !m_table)
KexiDBWarn << "TableOrQuery(Connection *conn, const QCString& name, bool table) : "
"no table specified!" << endl;
if (!table && !m_query)
KexiDBWarn << "TableOrQuery(Connection *conn, const QCString& name, bool table) : "
"no query specified!" << endl;
}
TableOrQuerySchema::TableOrQuerySchema(FieldList &tableOrQuery)
: m_table(dynamic_cast<TableSchema*>(&tableOrQuery))
, m_query(dynamic_cast<QuerySchema*>(&tableOrQuery))
{
if (!m_table && !m_query)
KexiDBWarn << "TableOrQuery(FieldList &tableOrQuery) : "
" tableOrQuery is nether table nor query!" << endl;
}
TableOrQuerySchema::TableOrQuerySchema(Connection *conn, int id)
{
m_table = conn->tableSchema(id);
m_query = m_table ? 0 : conn->querySchema(id);
if (!m_table && !m_query)
KexiDBWarn << "TableOrQuery(Connection *conn, int id) : no table or query found for id=="
<< id << "!" << endl;
}
TableOrQuerySchema::TableOrQuerySchema(TableSchema* table)
: m_table(table)
, m_query(0)
{
if (!m_table)
KexiDBWarn << "TableOrQuery(TableSchema* table) : no table specified!" << endl;
}
TableOrQuerySchema::TableOrQuerySchema(QuerySchema* query)
: m_table(0)
, m_query(query)
{
if (!m_query)
KexiDBWarn << "TableOrQuery(QuerySchema* query) : no query specified!" << endl;
}
uint TableOrQuerySchema::fieldCount() const
{
if (m_table)
return m_table->fieldCount();
if (m_query)
return m_query->fieldsExpanded().size();
return 0;
}
const QueryColumnInfo::Vector TableOrQuerySchema::columns(bool unique)
{
if (m_table)
return m_table->query()->fieldsExpanded(unique ? QuerySchema::Unique : QuerySchema::Default);
if (m_query)
return m_query->fieldsExpanded(unique ? QuerySchema::Unique : QuerySchema::Default);
KexiDBWarn << "TableOrQuerySchema::column() : no query or table specified!" << endl;
return QueryColumnInfo::Vector();
}
QCString TableOrQuerySchema::name() const
{
if (m_table)
return m_table->name().latin1();
if (m_query)
return m_query->name().latin1();
return m_name;
}
QString TableOrQuerySchema::captionOrName() const
{
SchemaData *sdata = m_table ? static_cast<SchemaData *>(m_table) : static_cast<SchemaData *>(m_query);
if (!sdata)
return m_name;
return sdata->caption().isEmpty() ? sdata->name() : sdata->caption();
}
Field* TableOrQuerySchema::field(const QString& name)
{
if (m_table)
return m_table->field(name);
if (m_query)
return m_query->field(name);
return 0;
}
QueryColumnInfo* TableOrQuerySchema::columnInfo(const QString& name)
{
if (m_table)
return m_table->query()->columnInfo(name);
if (m_query)
return m_query->columnInfo(name);
return 0;
}
QString TableOrQuerySchema::debugString()
{
if (m_table)
return m_table->debugString();
else if (m_query)
return m_query->debugString();
return QString::null;
}
void TableOrQuerySchema::debug()
{
if (m_table)
return m_table->debug();
else if (m_query)
return m_query->debug();
}
Connection* TableOrQuerySchema::connection() const
{
if (m_table)
return m_table->connection();
else if (m_query)
return m_query->connection();
return 0;
}
//------------------------------------------
class ConnectionTestThread : public QThread {
public:
ConnectionTestThread(ConnectionTestDialog *dlg, const KexiDB::ConnectionData& connData);
virtual void run();
protected:
ConnectionTestDialog* m_dlg;
KexiDB::ConnectionData m_connData;
};
ConnectionTestThread::ConnectionTestThread(ConnectionTestDialog* dlg, const KexiDB::ConnectionData& connData)
: m_dlg(dlg), m_connData(connData)
{
}
void ConnectionTestThread::run()
{
KexiDB::DriverManager manager;
KexiDB::Driver* drv = manager.driver(m_connData.driverName);
// KexiGUIMessageHandler msghdr;
if (!drv || manager.error()) {
//move msghdr.showErrorMessage(&Kexi::driverManager());
m_dlg->error(&manager);
return;
}
KexiDB::Connection * conn = drv->createConnection(m_connData);
if (!conn || drv->error()) {
//move msghdr.showErrorMessage(drv);
delete conn;
m_dlg->error(drv);
return;
}
if (!conn->connect() || conn->error()) {
//move msghdr.showErrorMessage(conn);
m_dlg->error(conn);
delete conn;
return;
}
// SQL database backends like PostgreSQL require executing "USE database"
// if we really want to know connection to the server succeeded.
QString tmpDbName;
if (!conn->useTemporaryDatabaseIfNeeded( tmpDbName )) {
m_dlg->error(conn);
delete conn;
return;
}
delete conn;
m_dlg->error(0);
}
ConnectionTestDialog::ConnectionTestDialog(QWidget* parent,
const KexiDB::ConnectionData& data,
KexiDB::MessageHandler& msgHandler)
: KProgressDialog(parent, "testconn_dlg",
i18n("Test Connection"), i18n("<qt>Testing connection to <b>%1</b> database server...</qt>")
.arg(data.serverInfoString(true)), true /*modal*/)
, m_thread(new ConnectionTestThread(this, data))
, m_connData(data)
, m_msgHandler(&msgHandler)
, m_elapsedTime(0)
, m_errorObj(0)
, m_stopWaiting(false)
{
showCancelButton(true);
progressBar()->setPercentageVisible(false);
progressBar()->setTotalSteps(0);
connect(&m_timer, SIGNAL(timeout()), this, SLOT(slotTimeout()));
adjustSize();
resize(250, height());
}
ConnectionTestDialog::~ConnectionTestDialog()
{
m_wait.wakeAll();
m_thread->terminate();
delete m_thread;
}
int ConnectionTestDialog::exec()
{
m_timer.start(20);
m_thread->start();
const int res = KProgressDialog::exec();
m_thread->wait();
m_timer.stop();
return res;
}
void ConnectionTestDialog::slotTimeout()
{
// KexiDBDbg << "ConnectionTestDialog::slotTimeout() " << m_errorObj << endl;
bool notResponding = false;
if (m_elapsedTime >= 1000*5) {//5 seconds
m_stopWaiting = true;
notResponding = true;
}
if (m_stopWaiting) {
m_timer.disconnect(this);
m_timer.stop();
slotCancel();
// reject();
// close();
if (m_errorObj) {
m_msgHandler->showErrorMessage(m_errorObj);
m_errorObj = 0;
}
else if (notResponding) {
KMessageBox::sorry(0,
i18n("<qt>Test connection to <b>%1</b> database server failed. The server is not responding.</qt>")
.arg(m_connData.serverInfoString(true)),
i18n("Test Connection"));
}
else {
KMessageBox::information(0,
i18n("<qt>Test connection to <b>%1</b> database server established successfully.</qt>")
.arg(m_connData.serverInfoString(true)),
i18n("Test Connection"));
}
// slotCancel();
// reject();
m_wait.wakeAll();
return;
}
m_elapsedTime += 20;
progressBar()->setProgress( m_elapsedTime );
}
void ConnectionTestDialog::error(KexiDB::Object *obj)
{
KexiDBDbg << "ConnectionTestDialog::error()" << endl;
m_stopWaiting = true;
m_errorObj = obj;
/* reject();
m_msgHandler->showErrorMessage(obj);
if (obj) {
}
else {
accept();
}*/
m_wait.wait();
}
void ConnectionTestDialog::slotCancel()
{
// m_wait.wakeAll();
m_thread->terminate();
m_timer.disconnect(this);
m_timer.stop();
KProgressDialog::slotCancel();
}
void KexiDB::connectionTestDialog(QWidget* parent, const KexiDB::ConnectionData& data,
KexiDB::MessageHandler& msgHandler)
{
ConnectionTestDialog dlg(parent, data, msgHandler);
dlg.exec();
}
int KexiDB::rowCount(Connection &conn, const QString& sql)
{
int count = -1; //will be changed only on success of querySingleNumber()
QString selectSql( QString::fromLatin1("SELECT COUNT() FROM (") + sql + ")" );
conn.querySingleNumber(selectSql, count);
return count;
}
int KexiDB::rowCount(const KexiDB::TableSchema& tableSchema)
{
//! @todo does not work with non-SQL data sources
if (!tableSchema.connection()) {
KexiDBWarn << "KexiDB::rowsCount(const KexiDB::TableSchema&): no tableSchema.connection() !" << endl;
return -1;
}
int count = -1; //will be changed only on success of querySingleNumber()
tableSchema.connection()->querySingleNumber(
QString::fromLatin1("SELECT COUNT(*) FROM ")
+ tableSchema.connection()->driver()->escapeIdentifier(tableSchema.name()),
count
);
return count;
}
int KexiDB::rowCount(KexiDB::QuerySchema& querySchema)
{
//! @todo does not work with non-SQL data sources
if (!querySchema.connection()) {
KexiDBWarn << "KexiDB::rowsCount(const KexiDB::QuerySchema&): no querySchema.connection() !" << endl;
return -1;
}
int count = -1; //will be changed only on success of querySingleNumber()
querySchema.connection()->querySingleNumber(
QString::fromLatin1("SELECT COUNT(*) FROM (")
+ querySchema.connection()->selectStatement(querySchema) + ")",
count
);
return count;
}
int KexiDB::rowCount(KexiDB::TableOrQuerySchema& tableOrQuery)
{
if (tableOrQuery.table())
return rowCount( *tableOrQuery.table() );
if (tableOrQuery.query())
return rowCount( *tableOrQuery.query() );
return -1;
}
int KexiDB::fieldCount(KexiDB::TableOrQuerySchema& tableOrQuery)
{
if (tableOrQuery.table())
return tableOrQuery.table()->fieldCount();
if (tableOrQuery.query())
return tableOrQuery.query()->fieldsExpanded().count();
return -1;
}
QMap<QString,QString> KexiDB::toMap( const ConnectionData& data )
{
QMap<QString,QString> m;
m["caption"] = data.caption;
m["description"] = data.description;
m["driverName"] = data.driverName;
m["hostName"] = data.hostName;
m["port"] = QString::number(data.port);
m["useLocalSocketFile"] = QString::number((int)data.useLocalSocketFile);
m["localSocketFileName"] = data.localSocketFileName;
m["password"] = data.password;
m["savePassword"] = QString::number((int)data.savePassword);
m["userName"] = data.userName;
m["fileName"] = data.fileName();
return m;
}
void KexiDB::fromMap( const QMap<QString,QString>& map, ConnectionData& data )
{
data.caption = map["caption"];
data.description = map["description"];
data.driverName = map["driverName"];
data.hostName = map["hostName"];
data.port = map["port"].toInt();
data.useLocalSocketFile = map["useLocalSocketFile"].toInt()==1;
data.localSocketFileName = map["localSocketFileName"];
data.password = map["password"];
data.savePassword = map["savePassword"].toInt()==1;
data.userName = map["userName"];
data.setFileName(map["fileName"]);
}
bool KexiDB::splitToTableAndFieldParts(const QString& string,
QString& tableName, QString& fieldName,
SplitToTableAndFieldPartsOptions option)
{
const int id = string.find('.');
if (option & SetFieldNameIfNoTableName && id==-1) {
tableName = QString::null;
fieldName = string;
return !fieldName.isEmpty();
}
if (id<=0 || id==int(string.length()-1))
return false;
tableName = string.left(id);
fieldName = string.mid(id+1);
return !tableName.isEmpty() && !fieldName.isEmpty();
}
bool KexiDB::supportsVisibleDecimalPlacesProperty(Field::Type type)
{
//! @todo add check for decimal type as well
return Field::isFPNumericType(type);
}
QString KexiDB::formatNumberForVisibleDecimalPlaces(double value, int decimalPlaces)
{
//! @todo round?
if (decimalPlaces < 0) {
QString s( QString::number(value, 'f', 10 /*reasonable precision*/));
uint i = s.length()-1;
while (i>0 && s[i]=='0')
i--;
if (s[i]=='.') //remove '.'
i--;
s = s.left(i+1).replace('.', KGlobal::locale()->decimalSymbol());
return s;
}
if (decimalPlaces == 0)
return QString::number((int)value);
return KGlobal::locale()->formatNumber(value, decimalPlaces);
}
KexiDB::Field::Type KexiDB::intToFieldType( int type )
{
if (type<(int)KexiDB::Field::InvalidType || type>(int)KexiDB::Field::LastType) {
KexiDBWarn << "KexiDB::intToFieldType(): invalid type " << type << endl;
return KexiDB::Field::InvalidType;
}
return (KexiDB::Field::Type)type;
}
static bool setIntToFieldType( Field& field, const QVariant& value )
{
bool ok;
const int intType = value.toInt(&ok);
if (!ok || KexiDB::Field::InvalidType == intToFieldType(intType)) {//for sanity
KexiDBWarn << "KexiDB::setFieldProperties(): invalid type" << endl;
return false;
}
field.setType((KexiDB::Field::Type)intType);
return true;
}
//! for KexiDB::isBuiltinTableFieldProperty()
static KStaticDeleter< QAsciiDict<char> > KexiDB_builtinFieldPropertiesDeleter;
//! for KexiDB::isBuiltinTableFieldProperty()
QAsciiDict<char>* KexiDB_builtinFieldProperties = 0;
bool KexiDB::isBuiltinTableFieldProperty( const QCString& propertyName )
{
if (!KexiDB_builtinFieldProperties) {
KexiDB_builtinFieldPropertiesDeleter.setObject( KexiDB_builtinFieldProperties, new QAsciiDict<char>(499) );
#define ADD(name) KexiDB_builtinFieldProperties->insert(name, (char*)1)
ADD("type");
ADD("primaryKey");
ADD("indexed");
ADD("autoIncrement");
ADD("unique");
ADD("notNull");
ADD("allowEmpty");
ADD("unsigned");
ADD("name");
ADD("caption");
ADD("description");
ADD("length");
ADD("precision");
ADD("defaultValue");
ADD("width");
ADD("visibleDecimalPlaces");
//! @todo always update this when new builtins appear!
#undef ADD
}
return KexiDB_builtinFieldProperties->find( propertyName );
}
bool KexiDB::setFieldProperties( Field& field, const QMap<QCString, QVariant>& values )
{
QMapConstIterator<QCString, QVariant> it;
if ( (it = values.find("type")) != values.constEnd() ) {
if (!setIntToFieldType(field, *it))
return false;
}
#define SET_BOOLEAN_FLAG(flag, value) { \
constraints |= KexiDB::Field::flag; \
if (!value) \
constraints ^= KexiDB::Field::flag; \
}
uint constraints = field.constraints();
bool ok = true;
if ( (it = values.find("primaryKey")) != values.constEnd() )
SET_BOOLEAN_FLAG(PrimaryKey, (*it).toBool());
if ( (it = values.find("indexed")) != values.constEnd() )
SET_BOOLEAN_FLAG(Indexed, (*it).toBool());
if ( (it = values.find("autoIncrement")) != values.constEnd()
&& KexiDB::Field::isAutoIncrementAllowed(field.type()) )
SET_BOOLEAN_FLAG(AutoInc, (*it).toBool());
if ( (it = values.find("unique")) != values.constEnd() )
SET_BOOLEAN_FLAG(Unique, (*it).toBool());
if ( (it = values.find("notNull")) != values.constEnd() )
SET_BOOLEAN_FLAG(NotNull, (*it).toBool());
if ( (it = values.find("allowEmpty")) != values.constEnd() )
SET_BOOLEAN_FLAG(NotEmpty, !(*it).toBool());
field.setConstraints( constraints );
uint options = 0;
if ( (it = values.find("unsigned")) != values.constEnd()) {
options |= KexiDB::Field::Unsigned;
if (!(*it).toBool())
options ^= KexiDB::Field::Unsigned;
}
field.setOptions( options );
if ( (it = values.find("name")) != values.constEnd())
field.setName( (*it).toString() );
if ( (it = values.find("caption")) != values.constEnd())
field.setCaption( (*it).toString() );
if ( (it = values.find("description")) != values.constEnd())
field.setDescription( (*it).toString() );
if ( (it = values.find("length")) != values.constEnd())
field.setLength( (*it).isNull() ? 0/*default*/ : (*it).toUInt(&ok) );
if (!ok)
return false;
if ( (it = values.find("precision")) != values.constEnd())
field.setPrecision( (*it).isNull() ? 0/*default*/ : (*it).toUInt(&ok) );
if (!ok)
return false;
if ( (it = values.find("defaultValue")) != values.constEnd())
field.setDefaultValue( *it );
if ( (it = values.find("width")) != values.constEnd())
field.setWidth( (*it).isNull() ? 0/*default*/ : (*it).toUInt(&ok) );
if (!ok)
return false;
if ( (it = values.find("visibleDecimalPlaces")) != values.constEnd()
&& KexiDB::supportsVisibleDecimalPlacesProperty(field.type()) )
field.setVisibleDecimalPlaces( (*it).isNull() ? -1/*default*/ : (*it).toInt(&ok) );
if (!ok)
return false;
// set custom properties
typedef QMap<QCString, QVariant> PropertiesMap;
foreach( PropertiesMap::ConstIterator, it, values ) {
if (!isBuiltinTableFieldProperty( it.key() ) && !isExtendedTableFieldProperty( it.key() )) {
field.setCustomProperty( it.key(), it.data() );
}
}
return true;
#undef SET_BOOLEAN_FLAG
}
//! for KexiDB::isExtendedTableFieldProperty()
static KStaticDeleter< QAsciiDict<char> > KexiDB_extendedPropertiesDeleter;
//! for KexiDB::isExtendedTableFieldProperty()
QAsciiDict<char>* KexiDB_extendedProperties = 0;
bool KexiDB::isExtendedTableFieldProperty( const QCString& propertyName )
{
if (!KexiDB_extendedProperties) {
KexiDB_extendedPropertiesDeleter.setObject( KexiDB_extendedProperties, new QAsciiDict<char>(499, false) );
#define ADD(name) KexiDB_extendedProperties->insert(name, (char*)1)
ADD("visibleDecimalPlaces");
ADD("rowSource");
ADD("rowSourceType");
ADD("rowSourceValues");
ADD("boundColumn");
ADD("visibleColumn");
ADD("columnWidths");
ADD("showColumnHeaders");
ADD("listRows");
ADD("limitToList");
ADD("displayWidget");
#undef ADD
}
return KexiDB_extendedProperties->find( propertyName );
}
bool KexiDB::setFieldProperty( Field& field, const QCString& propertyName, const QVariant& value )
{
#define SET_BOOLEAN_FLAG(flag, value) { \
constraints |= KexiDB::Field::flag; \
if (!value) \
constraints ^= KexiDB::Field::flag; \
field.setConstraints( constraints ); \
return true; \
}
#define GET_INT(method) { \
const uint ival = value.toUInt(&ok); \
if (!ok) \
return false; \
field.method( ival ); \
return true; \
}
if (propertyName.isEmpty())
return false;
bool ok;
if (KexiDB::isExtendedTableFieldProperty(propertyName)) {
//a little speedup: identify extended property in O(1)
if ( "visibleDecimalPlaces" == propertyName
&& KexiDB::supportsVisibleDecimalPlacesProperty(field.type()) )
{
GET_INT( setVisibleDecimalPlaces );
}
else {
if (!field.table()) {
KexiDBWarn << QString("KexiDB::setFieldProperty() Cannot set \"%1\" property - no table assinged for field!")
.arg(propertyName) << endl;
}
else {
LookupFieldSchema *lookup = field.table()->lookupFieldSchema(field);
const bool hasLookup = lookup != 0;
if (!hasLookup)
lookup = new LookupFieldSchema();
if (LookupFieldSchema::setProperty( *lookup, propertyName, value )) {
if (!hasLookup && lookup)
field.table()->setLookupFieldSchema( field.name(), lookup );
return true;
}
delete lookup;
}
}
}
else {//non-extended
if ( "type" == propertyName )
return setIntToFieldType(field, value);
uint constraints = field.constraints();
if ( "primaryKey" == propertyName )
SET_BOOLEAN_FLAG(PrimaryKey, value.toBool());
if ( "indexed" == propertyName )
SET_BOOLEAN_FLAG(Indexed, value.toBool());
if ( "autoIncrement" == propertyName
&& KexiDB::Field::isAutoIncrementAllowed(field.type()) )
SET_BOOLEAN_FLAG(AutoInc, value.toBool());
if ( "unique" == propertyName )
SET_BOOLEAN_FLAG(Unique, value.toBool());
if ( "notNull" == propertyName )
SET_BOOLEAN_FLAG(NotNull, value.toBool());
if ( "allowEmpty" == propertyName )
SET_BOOLEAN_FLAG(NotEmpty, !value.toBool());
uint options = 0;
if ( "unsigned" == propertyName ) {
options |= KexiDB::Field::Unsigned;
if (!value.toBool())
options ^= KexiDB::Field::Unsigned;
field.setOptions( options );
return true;
}
if ( "name" == propertyName ) {
if (value.toString().isEmpty())
return false;
field.setName( value.toString() );
return true;
}
if ( "caption" == propertyName ) {
field.setCaption( value.toString() );
return true;
}
if ( "description" == propertyName ) {
field.setDescription( value.toString() );
return true;
}
if ( "length" == propertyName )
GET_INT( setLength );
if ( "precision" == propertyName )
GET_INT( setPrecision );
if ( "defaultValue" == propertyName ) {
field.setDefaultValue( value );
return true;
}
if ( "width" == propertyName )
GET_INT( setWidth );
// last chance that never fails: custom field property
field.setCustomProperty(propertyName, value);
}
KexiDBWarn << "KexiDB::setFieldProperty() property \"" << propertyName << "\" not found!" << endl;
return false;
#undef SET_BOOLEAN_FLAG
#undef GET_INT
}
int KexiDB::loadIntPropertyValueFromDom( const QDomNode& node, bool* ok )
{
QCString valueType = node.nodeName().latin1();
if (valueType.isEmpty() || valueType!="number") {
if (ok)
*ok = false;
return 0;
}
const QString text( QDomNode(node).toElement().text() );
int val = text.toInt(ok);
return val;
}
QString KexiDB::loadStringPropertyValueFromDom( const QDomNode& node, bool* ok )
{
QCString valueType = node.nodeName().latin1();
if (valueType!="string") {
if (ok)
*ok = false;
return 0;
}
return QDomNode(node).toElement().text();
}
QVariant KexiDB::loadPropertyValueFromDom( const QDomNode& node )
{
QCString valueType = node.nodeName().latin1();
if (valueType.isEmpty())
return QVariant();
const QString text( QDomNode(node).toElement().text() );
bool ok;
if (valueType == "string") {
return text;
}
else if (valueType == "cstring") {
return QCString(text.latin1());
}
else if (valueType == "number") { // integer or double
if (text.find('.')!=-1) {
double val = text.toDouble(&ok);
if (ok)
return val;
}
else {
const int val = text.toInt(&ok);
if (ok)
return val;
const Q_LLONG valLong = text.toLongLong(&ok);
if (ok)
return valLong;
}
}
else if (valueType == "bool") {
return QVariant(text.lower()=="true" || text=="1", 1);
}
//! @todo add more QVariant types
KexiDBWarn << "loadPropertyValueFromDom(): unknown type '" << valueType << "'" << endl;
return QVariant();
}
QDomElement KexiDB::saveNumberElementToDom(QDomDocument& doc, QDomElement& parentEl,
const QString& elementName, int value)
{
QDomElement el( doc.createElement(elementName) );
parentEl.appendChild( el );
QDomElement numberEl( doc.createElement("number") );
el.appendChild( numberEl );
numberEl.appendChild( doc.createTextNode( QString::number(value) ) );
return el;
}
QDomElement KexiDB::saveBooleanElementToDom(QDomDocument& doc, QDomElement& parentEl,
const QString& elementName, bool value)
{
QDomElement el( doc.createElement(elementName) );
parentEl.appendChild( el );
QDomElement numberEl( doc.createElement("bool") );
el.appendChild( numberEl );
numberEl.appendChild( doc.createTextNode(
value ? QString::fromLatin1("true") : QString::fromLatin1("false") ) );
return el;
}
//! Used in KexiDB::emptyValueForType()
static KStaticDeleter< QValueVector<QVariant> > KexiDB_emptyValueForTypeCacheDeleter;
QValueVector<QVariant> *KexiDB_emptyValueForTypeCache = 0;
QVariant KexiDB::emptyValueForType( KexiDB::Field::Type type )
{
if (!KexiDB_emptyValueForTypeCache) {
KexiDB_emptyValueForTypeCacheDeleter.setObject( KexiDB_emptyValueForTypeCache,
new QValueVector<QVariant>(int(Field::LastType)+1) );
#define ADD(t, value) (*KexiDB_emptyValueForTypeCache)[t]=value;
ADD(Field::Byte, 0);
ADD(Field::ShortInteger, 0);
ADD(Field::Integer, 0);
ADD(Field::BigInteger, 0);
ADD(Field::Boolean, QVariant(false, 0));
ADD(Field::Float, 0.0);
ADD(Field::Double, 0.0);
//! @todo ok? we have no better defaults
ADD(Field::Text, QString(" "));
ADD(Field::LongText, QString(" "));
ADD(Field::BLOB, QByteArray());
#undef ADD
}
const QVariant val( KexiDB_emptyValueForTypeCache->at(
(type<=Field::LastType) ? type : Field::InvalidType) );
if (!val.isNull())
return val;
else { //special cases
if (type==Field::Date)
return QDate::currentDate();
if (type==Field::DateTime)
return QDateTime::currentDateTime();
if (type==Field::Time)
return QTime::currentTime();
}
KexiDBWarn << "KexiDB::emptyValueForType() no value for type "
<< Field::typeName(type) << endl;
return QVariant();
}
//! Used in KexiDB::notEmptyValueForType()
static KStaticDeleter< QValueVector<QVariant> > KexiDB_notEmptyValueForTypeCacheDeleter;
QValueVector<QVariant> *KexiDB_notEmptyValueForTypeCache = 0;
QVariant KexiDB::notEmptyValueForType( KexiDB::Field::Type type )
{
if (!KexiDB_notEmptyValueForTypeCache) {
KexiDB_notEmptyValueForTypeCacheDeleter.setObject( KexiDB_notEmptyValueForTypeCache,
new QValueVector<QVariant>(int(Field::LastType)+1) );
#define ADD(t, value) (*KexiDB_notEmptyValueForTypeCache)[t]=value;
// copy most of the values
for (int i = int(Field::InvalidType) + 1; i<=Field::LastType; i++) {
if (i==Field::Date || i==Field::DateTime || i==Field::Time)
continue; //'current' value will be returned
if (i==Field::Text || i==Field::LongText) {
ADD(i, QVariant(QString("")));
continue;
}
if (i==Field::BLOB) {
//! @todo blobs will contain other mime types too
QByteArray ba;
QBuffer buffer( ba );
buffer.open( IO_WriteOnly );
QPixmap pm(SmallIcon("filenew"));
pm.save( &buffer, "PNG"/*! @todo default? */ );
ADD(i, ba);
continue;
}
ADD(i, KexiDB::emptyValueForType((Field::Type)i));
}
#undef ADD
}
const QVariant val( KexiDB_notEmptyValueForTypeCache->at(
(type<=Field::LastType) ? type : Field::InvalidType) );
if (!val.isNull())
return val;
else { //special cases
if (type==Field::Date)
return QDate::currentDate();
if (type==Field::DateTime)
return QDateTime::currentDateTime();
if (type==Field::Time)
return QTime::currentTime();
}
KexiDBWarn << "KexiDB::notEmptyValueForType() no value for type "
<< Field::typeName(type) << endl;
return QVariant();
}
QString KexiDB::escapeBLOB(const QByteArray& array, BLOBEscapingType type)
{
const int size = array.size();
if (size==0)
return QString::null;
int escaped_length = size*2;
if (type == BLOBEscape0xHex || type == BLOBEscapeOctal)
escaped_length += 2/*0x or X'*/;
else if (type == BLOBEscapeXHex)
escaped_length += 3; //X' + '
QString str;
str.reserve(escaped_length);
if (str.capacity() < (uint)escaped_length) {
KexiDBWarn << "KexiDB::Driver::escapeBLOB(): no enough memory (cannot allocate "<<
escaped_length<<" chars)" << endl;
return QString::null;
}
if (type == BLOBEscapeXHex)
str = QString::fromLatin1("X'");
else if (type == BLOBEscape0xHex)
str = QString::fromLatin1("0x");
else if (type == BLOBEscapeOctal)
str = QString::fromLatin1("'");
int new_length = str.length(); //after X' or 0x, etc.
if (type == BLOBEscapeOctal) {
// only escape nonprintable characters as in Table 8-7:
// http://www.postgresql.org/docs/8.1/interactive/datatype-binary.html
// i.e. escape for bytes: < 32, >= 127, 39 ('), 92(\).
for (int i = 0; i < size; i++) {
const unsigned char val = array[i];
if (val<32 || val>=127 || val==39 || val==92) {
str[new_length++] = '\\';
str[new_length++] = '\\';
str[new_length++] = '0' + val/64;
str[new_length++] = '0' + (val % 64) / 8;
str[new_length++] = '0' + val % 8;
}
else {
str[new_length++] = val;
}
}
}
else {
for (int i = 0; i < size; i++) {
const unsigned char val = array[i];
str[new_length++] = (val/16) < 10 ? ('0'+(val/16)) : ('A'+(val/16)-10);
str[new_length++] = (val%16) < 10 ? ('0'+(val%16)) : ('A'+(val%16)-10);
}
}
if (type == BLOBEscapeXHex || type == BLOBEscapeOctal)
str[new_length++] = '\'';
return str;
}
QByteArray KexiDB::pgsqlByteaToByteArray(const char* data, int length)
{
QByteArray array;
int output=0;
for (int pass=0; pass<2; pass++) {//2 passes to avoid allocating buffer twice:
// 0: count #of chars; 1: copy data
const char* s = data;
const char* end = s + length;
if (pass==1) {
KexiDBDbg << "processBinaryData(): real size == " << output << endl;
array.resize(output);
output=0;
}
for (int input=0; s < end; output++) {
// KexiDBDbg<<(int)s[0]<<" "<<(int)s[1]<<" "<<(int)s[2]<<" "<<(int)s[3]<<" "<<(int)s[4]<<endl;
if (s[0]=='\\' && (s+1)<end) {
//special cases as in http://www.postgresql.org/docs/8.1/interactive/datatype-binary.html
if (s[1]=='\'') {// \'
if (pass==1)
array[output] = '\'';
s+=2;
}
else if (s[1]=='\\') { // 2 backslashes
if (pass==1)
array[output] = '\\';
s+=2;
}
else if ((input+3)<length) {// \\xyz where xyz are 3 octal digits
if (pass==1)
array[output] = char( (int(s[1]-'0')*8+int(s[2]-'0'))*8+int(s[3]-'0') );
s+=4;
}
else {
KexiDBDrvWarn << "processBinaryData(): no octal value after backslash" << endl;
s++;
}
}
else {
if (pass==1)
array[output] = s[0];
s++;
}
// KexiDBDbg<<output<<": "<<(int)array[output]<<endl;
}
}
return array;
}
QString KexiDB::variantToString( const QVariant& v )
{
if (v.type()==QVariant::ByteArray)
return KexiDB::escapeBLOB(v.toByteArray(), KexiDB::BLOBEscapeHex);
return v.toString();
}
QVariant KexiDB::stringToVariant( const QString& s, QVariant::Type type, bool &ok )
{
if (s.isNull()) {
ok = true;
return QVariant();
}
if (QVariant::Invalid==type) {
ok = false;
return QVariant();
}
if (type==QVariant::ByteArray) {//special case: hex string
const uint len = s.length();
QByteArray ba(len/2 + len%2);
for (uint i=0; i<(len-1); i+=2) {
int c = s.mid(i,2).toInt(&ok, 16);
if (!ok) {
KexiDBWarn << "KexiDB::stringToVariant(): Error in digit " << i << endl;
return QVariant();
}
ba[i/2] = (char)c;
}
ok = true;
return ba;
}
QVariant result(s);
if (!result.cast( type )) {
ok = false;
return QVariant();
}
ok = true;
return result;
}
bool KexiDB::isDefaultValueAllowed( KexiDB::Field* field )
{
return field && !field->isUniqueKey();
}
void KexiDB::getLimitsForType(Field::Type type, int &minValue, int &maxValue)
{
switch (type) {
case Field::Byte:
//! @todo always ok?
minValue = 0;
maxValue = 255;
break;
case Field::ShortInteger:
minValue = -32768;
maxValue = 32767;
break;
case Field::Integer:
case Field::BigInteger: //cannot return anything larger
default:
minValue = (int)-0x07FFFFFFF;
maxValue = (int)(0x080000000-1);
}
}
void KexiDB::debugRowData(const RowData& rowData)
{
KexiDBDbg << QString("ROW DATA (%1 columns):").arg(rowData.count()) << endl;
foreach(RowData::ConstIterator, it, rowData)
KexiDBDbg << "- " << (*it) << endl;
}
Field::Type KexiDB::maximumForIntegerTypes(Field::Type t1, Field::Type t2)
{
if (!Field::isIntegerType(t1) || !Field::isIntegerType(t2))
return Field::InvalidType;
if (t1==t2)
return t2;
if (t1==Field::ShortInteger && t2!=Field::Integer && t2!=Field::BigInteger)
return t1;
if (t1==Field::Integer && t2!=Field::BigInteger)
return t1;
if (t1==Field::BigInteger)
return t1;
return KexiDB::maximumForIntegerTypes(t2, t1); //swap
}
QString KexiDB::simplifiedTypeName(const Field& field)
{
if (field.isNumericType())
return i18n("Number"); //simplify
else if (field.type() == Field::BLOB)
//! @todo support names of other BLOB subtypes
return i18n("Image"); //simplify
return field.typeGroupName();
}
#include "utils_p.moc"