Provides SQL database error information. More...

Public Types
enum	ErrorType

Public Methods
	QSqlError (const QSqlError &other)

	QSqlError (const QString &driverText=QString (), const QString &databaseText=QString (), ErrorType type=NoError, const QString &errorCode=QString ())

	~QSqlError ()

QString	databaseText () const

QString	driverText () const

bool	isValid () const

QString	nativeErrorCode () const

QSqlError &	operator= (const QSqlError &other)

QString	text () const

ErrorType	type () const

Detailed Description

The QSqlError class provides SQL database error information.

A QSqlError object can provide database-specific error data, including the driverText() and databaseText() messages (or both concatenated together as text()), and the error number() and type(). The functions all have setters so that you can create and return QSqlError objects from your own classes, for example from your own SQL drivers.

See also: QSqlDatabase::lastError(), QSqlQuery::lastError()

Member Enumeration Documentation

enum QSqlError::ErrorType

This enum type describes the context in which the error occurred, e.g., a connection error, a statement error, etc.

Constant	Value	Description
`QSqlError::NoError`	`0`	No error occurred.
`QSqlError::ConnectionError`	`1`	Connection error.
`QSqlError::StatementError`	`2`	SQL statement syntax error.
`QSqlError::TransactionError`	`3`	Transaction failed error.
`QSqlError::UnknownError`	`4`	Unknown error.

Constructor & Destructor Documentation

QSqlError::QSqlError	(	const QString &	driverText = `QString()`,
		const QString &	databaseText = `QString()`,
		ErrorType	type = `NoError`,
		const QString &	errorCode = `QString()`
	)

Constructs an error containing the driver error text driverText, the database-specific error text databaseText, the type and the error code errorCode.

QSqlError::QSqlError ( const QSqlError & other )

Creates a copy of other.

QSqlError::~QSqlError ( )

Destroys the object and frees any allocated resources.

Method Documentation

QString QSqlError::databaseText ( ) const

Returns the text of the error as reported by the database. This may contain database-specific descriptions; it may be empty.

See also: driverText(), text()

QString QSqlError::driverText ( ) const

Returns the text of the error as reported by the driver. This may contain database-specific descriptions. It may also be empty.

See also: databaseText(), text()

bool QSqlError::isValid ( ) const

Returns true if an error is set, otherwise false.

QSqlQueryModel model;
model.setQuery("select * from myTable");
 
if (model.lastError().isValid()) {
    qDebug() << model.lastError();
}

See also: type()

QString QSqlError::nativeErrorCode ( ) const

Returns the database specific error code or an empty string if it can not be determined.

QSqlError & QSqlError::operator= ( const QSqlError & other )

Copy assigns from other and returns a reference to this object.

QString QSqlError::text ( ) const

This method returns the values for databaseText() and driverText() concatenated into a single string.

See also: driverText(), databaseText()

ErrorType QSqlError::type ( ) const

Returns the error type or -1 if the type can not be determined.

Public Types

Public Methods

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Method Documentation