Represents a list of OrderByClauses, with the most important first and the least important last. More...

#include <qgsfeaturerequest.h>

Inheritance diagram for QgsFeatureRequest::OrderBy:

Public Member Functions
CORE_EXPORT	OrderBy ()
	Create a new empty order by. More...

CORE_EXPORT	OrderBy (const QList< QgsFeatureRequest::OrderByClause > &other)
	Create a new order by from a list of clauses. More...

QString CORE_EXPORT	dump () const
	Dumps the content to an SQL equivalent syntax. More...

QList< QgsFeatureRequest::OrderByClause > CORE_EXPORT	list () const
	Gets a copy as a list of OrderByClauses. More...

void CORE_EXPORT	load (const QDomElement &elem)
	Deserialize from XML. More...

void CORE_EXPORT	save (QDomElement &elem) const
	Serialize to XML. More...

QSet< int > CORE_EXPORT	usedAttributeIndices (const QgsFields &fields) const
	Returns a set of used, validated attribute indices. More...

QSet< QString > CORE_EXPORT	usedAttributes () const
	Returns a set of used attributes. More...

Detailed Description

Represents a list of OrderByClauses, with the most important first and the least important last.

Since: QGIS 2.14

Definition at line 231 of file qgsfeaturerequest.h.

Constructor & Destructor Documentation

◆ OrderBy() [1/2]

QgsFeatureRequest::OrderBy::OrderBy ( )

default

Create a new empty order by.

◆ OrderBy() [2/2]

QgsFeatureRequest::OrderBy::OrderBy ( const QList< QgsFeatureRequest::OrderByClause > & other )

Create a new order by from a list of clauses.

Definition at line 434 of file qgsfeaturerequest.cpp.

Member Function Documentation

◆ dump()

QString QgsFeatureRequest::OrderBy::dump ( ) const

Dumps the content to an SQL equivalent syntax.

Definition at line 514 of file qgsfeaturerequest.cpp.

◆ list()

QList< QgsFeatureRequest::OrderByClause > QgsFeatureRequest::OrderBy::list ( ) const

Gets a copy as a list of OrderByClauses.

This is only required in Python where the inheritance is not properly propagated and this makes it usable.

Definition at line 443 of file qgsfeaturerequest.cpp.

◆ load()

void QgsFeatureRequest::OrderBy::load ( const QDomElement & elem )

Deserialize from XML.

Definition at line 464 of file qgsfeaturerequest.cpp.

◆ save()

void QgsFeatureRequest::OrderBy::save ( QDomElement & elem ) const

Serialize to XML.

Definition at line 448 of file qgsfeaturerequest.cpp.

◆ usedAttributeIndices()

QSet< int > QgsFeatureRequest::OrderBy::usedAttributeIndices ( const QgsFields & fields ) const

Returns a set of used, validated attribute indices.

Since: QGIS 3.8

Definition at line 496 of file qgsfeaturerequest.cpp.

◆ usedAttributes()

QSet< QString > QgsFeatureRequest::OrderBy::usedAttributes ( ) const

Returns a set of used attributes.

Note: The returned attributes names are NOT guaranteed to be valid.

Definition at line 481 of file qgsfeaturerequest.cpp.

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

/build/qgis-3.18.1+99unstable/src/core/qgsfeaturerequest.h
/build/qgis-3.18.1+99unstable/src/core/qgsfeaturerequest.cpp

Public Member Functions