QSqlQueryModelPrivate Class Reference

#include <qsqlquerymodel_p.h>

Inheritance diagram for QSqlQueryModelPrivate:

Public Functions
void	initColOffsets (int size)
void	prefetch (int)
	QSqlQueryModelPrivate ()
	~QSqlQueryModelPrivate ()
Public Functions inherited from QAbstractItemModelPrivate
bool	allowMove (const QModelIndex &srcParent, int srcFirst, int srcLast, const QModelIndex &destinationParent, int destinationChild, Qt::Orientation orientation)
	Returns whether a move operation is valid. More...
void	columnsAboutToBeInserted (const QModelIndex &parent, int first, int last)
void	columnsAboutToBeRemoved (const QModelIndex &parent, int first, int last)
void	columnsInserted (const QModelIndex &parent, int first, int last)
void	columnsRemoved (const QModelIndex &parent, int first, int last)
QModelIndex	createIndex (int row, int column, void *data=0) const
QModelIndex	createIndex (int row, int column, int id) const
bool	indexValid (const QModelIndex &index) const
void	invalidatePersistentIndex (const QModelIndex &index)
void	invalidatePersistentIndexes ()
void	itemsAboutToBeMoved (const QModelIndex &srcParent, int srcFirst, int srcLast, const QModelIndex &destinationParent, int destinationChild, Qt::Orientation)
void	itemsMoved (const QModelIndex &srcParent, int srcFirst, int srcLast, const QModelIndex &destinationParent, int destinationChild, Qt::Orientation orientation)
void	movePersistentIndexes (QVector< QPersistentModelIndexData *> indexes, int change, const QModelIndex &parent, Qt::Orientation orientation)
	Moves persistent indexes indexes by amount change. More...
	QAbstractItemModelPrivate ()
void	removePersistentIndexData (QPersistentModelIndexData *data)
void	rowsAboutToBeInserted (const QModelIndex &parent, int first, int last)
void	rowsAboutToBeRemoved (const QModelIndex &parent, int first, int last)
void	rowsInserted (const QModelIndex &parent, int first, int last)
void	rowsRemoved (const QModelIndex &parent, int first, int last)
Public Functions inherited from QObjectPrivate
void	_q_reregisterTimers (void *pointer)
void	addConnection (int signal, Connection *c)
void	cleanConnectionLists ()
void	connectNotify (const char *signal)
void	deleteChildren ()
void	disconnectNotify (const char *signal)
bool	isSender (const QObject *receiver, const char *signal) const
bool	isSignalConnected (uint signalIdx) const
	Returns true if the signal with index signal_index from object sender is connected. More...
void	moveToThread_helper ()
	QObjectPrivate (int version=QObjectPrivateVersion)
QObjectList	receiverList (const char *signal) const
QObjectList	senderList () const
void	setParent_helper (QObject *)
void	setThreadData_helper (QThreadData *currentData, QThreadData *targetData)
int	signalIndex (const char *signalName) const
	Returns the signal index used in the internal connectionLists vector. More...
virtual	~QObjectPrivate ()
Public Functions inherited from QObjectData
virtual	~QObjectData ()=0

Public Variables
uint	atEnd: 1
QModelIndex	bottom
QVarLengthArray< int, 56 >	colOffsets
QSqlError	error
QVector< QHash< int, QVariant > >	headers
QSqlQuery	query
QSqlRecord	rec
Public Variables inherited from QAbstractItemModelPrivate
QStack< Change >	changes
struct QAbstractItemModelPrivate::Persistent	persistent
QHash< int, QByteArray >	roleNames
Qt::DropActions	supportedDragActions
Public Variables inherited from QObjectPrivate
union {
QObject *   currentChildBeingDeleted
QAbstractDeclarativeData *   declarativeData
};
quint32	connectedSignals [2]
QObjectConnectionListVector *	connectionLists
Sender *	currentSender
QList< QPointer< QObject > >	eventFilters
ExtraData *	extraData
QString	objectName
Connection *	senders
QAtomicPointer< QtSharedPointer::ExternalRefCountData >	sharedRefcount
QThreadData *	threadData
void *	unused
Public Variables inherited from QObjectData
uint	blockSig: 1
QObjectList	children
uint	hasGuards: 1
uint	inEventHandler: 1
uint	inThreadChangeEvent: 1
uint	isWidget: 1
QMetaObject *	metaObject
uint	ownObjectName: 1
QObject *	parent
uint	pendTimer: 1
int	postedEvents
QObject *	q_ptr
uint	receiveChildEvents: 1
uint	sendChildEvents: 1
uint	unused: 22
uint	wasDeleted: 1

Additional Inherited Members
Public Types inherited from QObjectPrivate
typedef void(*	StaticMetaCallFunction) (QObject *, QMetaObject::Call, int, void **)
Static Public Functions inherited from QAbstractItemModelPrivate
static const QHash< int, QByteArray > &	defaultRoleNames ()
static QAbstractItemModel *	staticEmptyModel ()
static bool	variantLessThan (const QVariant &v1, const QVariant &v2)
	This function is used by our Q{Tree,Widget,Table}WidgetModel classes to sort. More...
Static Public Functions inherited from QObjectPrivate
static void	clearGuards (QObject *)
static QObjectPrivate *	get (QObject *o)
static void	resetCurrentSender (QObject *receiver, Sender *currentSender, Sender *previousSender)
static Sender *	setCurrentSender (QObject *receiver, Sender *sender)
static void	signalSignature (const QMetaMethod &signal, QVarLengthArray< char > *result)

Detailed Description

Definition at line 66 of file qsqlquerymodel_p.h.

Constructors and Destructors

QSqlQueryModelPrivate()

QSqlQueryModelPrivate::QSqlQueryModelPrivate ( )

inline

Definition at line 70 of file qsqlquerymodel_p.h.

: atEnd(false) {}

~QSqlQueryModelPrivate()

QSqlQueryModelPrivate::~QSqlQueryModelPrivate

(

)

Definition at line 89 of file qsqlquerymodel.cpp.

Referenced by QSqlQueryModelPrivate().

{
}

Functions

initColOffsets()

void QSqlQueryModelPrivate::initColOffsets

(

int

size

)

Definition at line 93 of file qsqlquerymodel.cpp.

Referenced by QSqlQueryModelPrivate().

{
    colOffsets.resize(size);
    memset(colOffsets.data(), 0, colOffsets.size() * sizeof(int));
}

prefetch()

void QSqlQueryModelPrivate::prefetch

(

int

limit

)

Definition at line 54 of file qsqlquerymodel.cpp.

Referenced by QSqlQueryModelPrivate().

{
    Q_Q(QSqlQueryModel);

    if (atEnd || limit <= bottom.row() || bottom.column() == -1)
        return;

    QModelIndex newBottom;
    const int oldBottomRow = qMax(bottom.row(), 0);

    // try to seek directly
    if (query.seek(limit)) {
        newBottom = q->createIndex(limit, bottom.column());
    } else {
        // have to seek back to our old position for MS Access
        int i = oldBottomRow;
        if (query.seek(i)) {
            while (query.next())
                ++i;
            newBottom = q->createIndex(i, bottom.column());
        } else {
            // empty or invalid query
            newBottom = q->createIndex(-1, bottom.column());
        }
        atEnd = true; // this is the end.
    }
    if (newBottom.row() >= 0 && newBottom.row() > bottom.row()) {
        q->beginInsertRows(QModelIndex(), bottom.row() + 1, newBottom.row());
        bottom = newBottom;
        q->endInsertRows();
    } else {
        bottom = newBottom;
    }
}

Properties

atEnd

uint QSqlQueryModelPrivate::atEnd

Definition at line 80 of file qsqlquerymodel_p.h.

Referenced by prefetch().

bottom

QModelIndex QSqlQueryModelPrivate::bottom

Definition at line 78 of file qsqlquerymodel_p.h.

Referenced by prefetch().

colOffsets

QVarLengthArray<int, 56> QSqlQueryModelPrivate::colOffsets

Definition at line 82 of file qsqlquerymodel_p.h.

Referenced by initColOffsets().

error

QSqlError QSqlQueryModelPrivate::error

mutable

Definition at line 77 of file qsqlquerymodel_p.h.

Referenced by QSqlTableModelPrivate::exec(), and QSqlTableModelPrivate::primaryValues().

headers

QVector<QHash<int, QVariant> > QSqlQueryModelPrivate::headers

Definition at line 81 of file qsqlquerymodel_p.h.

query

QSqlQuery QSqlQueryModelPrivate::query

mutable

Definition at line 76 of file qsqlquerymodel_p.h.

Referenced by QSqlTableModelPrivate::exec(), prefetch(), and QSqlTableModelPrivate::primaryValues().

rec

QSqlRecord QSqlQueryModelPrivate::rec

Definition at line 79 of file qsqlquerymodel_p.h.

Referenced by QSqlTableModelPrivate::clear(), QSqlTableModelPrivate::clearEditBuffer(), QSqlTableModelPrivate::initRecordAndPrimaryIndex(), QSqlTableModelPrivate::nameToIndex(), QSqlTableModelPrivate::primaryValues(), QSqlTableModelPrivate::QSqlTableModelPrivate(), and QSqlTableModelPrivate::record().

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The documentation for this class was generated from the following files:

• /src/sql/models/qsqlquerymodel_p.h
• /src/sql/models/qsqlquerymodel.cpp