QgsDatabaseQueryLog Class Reference

Handles logging of database queries. More...

#include <qgsdbquerylog.h>

Inheritance diagram for QgsDatabaseQueryLog:

Public Slots
void	queryFinishedPrivate (const QgsDatabaseQueryLogEntry &query)
	Internal slot for logging queries as finished.
void	queryStartedPrivate (const QgsDatabaseQueryLogEntry &query)
	Internal slot for logging queries as start.

Signals
void	queryFinished (const QgsDatabaseQueryLogEntry &query)
	Emitted whenever a database query has finished executing.
void	queryStarted (const QgsDatabaseQueryLogEntry &query)
	Emitted whenever a database query is started.

Public Member Functions
	QgsDatabaseQueryLog (QObject *parent=nullptr)
	Creates a new query log.

Static Public Member Functions
static bool	enabled ()
	Returns true if logging is enabled.
static void	finished (const QgsDatabaseQueryLogEntry &query)
	Records that the database query has finished.
static void	log (const QgsDatabaseQueryLogEntry &query)
	Logs a database query as starting.
static void	setEnabled (bool enabled)
	Enables query logging.

Detailed Description

Handles logging of database queries.

QgsDatabaseQueryLog is not usually directly created, but rather accessed through QgsApplication::databaseQueryLog(). Generally, clients should only access the static log() method to register their queries.

Example

# Log a database query
QgsDatabaseQueryLog.log('SELECT * FROM my_table')

Since

QGIS 3.24

Definition at line 124 of file qgsdbquerylog.h.

Constructor & Destructor Documentation

QgsDatabaseQueryLog()

QgsDatabaseQueryLog::QgsDatabaseQueryLog

(

QObject *

parent = nullptr

)

Creates a new query log.

QgsDatabaseQueryLog is not usually directly created, but rather accessed through QgsApplication::databaseQueryLog().

Definition at line 42 of file qgsdbquerylog.cpp.

Member Function Documentation

enabled()

static bool QgsDatabaseQueryLog::enabled ( )

inlinestatic

Returns true if logging is enabled.

See also

setEnabled()

Definition at line 154 of file qgsdbquerylog.h.

finished()

void QgsDatabaseQueryLog::finished ( const QgsDatabaseQueryLogEntry &  query )

static

Records that the database query has finished.

This method can be safely called from any thread.

Definition at line 56 of file qgsdbquerylog.cpp.

log()

void QgsDatabaseQueryLog::log ( const QgsDatabaseQueryLogEntry &  query )

static

Logs a database query as starting.

This method can be safely called from any thread.

Definition at line 48 of file qgsdbquerylog.cpp.

queryFinished

void QgsDatabaseQueryLog::queryFinished ( const QgsDatabaseQueryLogEntry &  query )

signal

Emitted whenever a database query has finished executing.

Note

Not available in Python bindings

queryFinishedPrivate

void QgsDatabaseQueryLog::queryFinishedPrivate ( const QgsDatabaseQueryLogEntry &  query )

slot

Internal slot for logging queries as finished.

Note

Not available in Python bindings.

Definition at line 74 of file qgsdbquerylog.cpp.

queryStarted

void QgsDatabaseQueryLog::queryStarted ( const QgsDatabaseQueryLogEntry &  query )

signal

Emitted whenever a database query is started.

Note

Not available in Python bindings

queryStartedPrivate

void QgsDatabaseQueryLog::queryStartedPrivate ( const QgsDatabaseQueryLogEntry &  query )

slot

Internal slot for logging queries as start.

Note

Not available in Python bindings.

Definition at line 68 of file qgsdbquerylog.cpp.

setEnabled()

static void QgsDatabaseQueryLog::setEnabled ( bool  enabled )

inlinestatic

Enables query logging.

If disabled, no signals will be emitted by the log. By default the log is disabled, and clients must manually enable it.

Note

Not available in Python bindings

See also

enabled()

Definition at line 147 of file qgsdbquerylog.h.

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

• /build/qgis-3.41.0+git20241214+cea29feecf2+99sid/src/core/qgsdbquerylog.h
• /build/qgis-3.41.0+git20241214+cea29feecf2+99sid/src/core/qgsdbquerylog.cpp