QgsJSONUtils Class Reference

Helper utilities for working with JSON and GeoJSON conversions. More...

#include <qgsjsonutils.h>

Static Public Member Functions
static QString	encodeValue (const QVariant &value)
	Encodes a value to a JSON string representation, adding appropriate quotations and escaping where required. More...
static QString	exportAttributes (const QgsFeature &feature)
	Exports all attributes from a QgsFeature as a JSON map type. More...
static QgsFeatureList	stringToFeatureList (const QString &string, const QgsFields &fields, QTextCodec *encoding)
	Attempts to parse a GeoJSON string to a collection of features. More...
static QgsFields	stringToFields (const QString &string, QTextCodec *encoding)
	Attempts to retrieve the fields from a GeoJSON string representing a collection of features. More...

Detailed Description

Helper utilities for working with JSON and GeoJSON conversions.

Note

Added in version 2.16

Definition at line 209 of file qgsjsonutils.h.

Member Function Documentation

encodeValue()

QString QgsJSONUtils::encodeValue ( const QVariant &  value )

static

Encodes a value to a JSON string representation, adding appropriate quotations and escaping where required.

Parameters

value

value to encode

Returns

encoded value

Definition at line 236 of file qgsjsonutils.cpp.

exportAttributes()

QString QgsJSONUtils::exportAttributes ( const QgsFeature &  feature )

static

Exports all attributes from a QgsFeature as a JSON map type.

Parameters

feature

feature to export

Definition at line 302 of file qgsjsonutils.cpp.

stringToFeatureList()

QgsFeatureList QgsJSONUtils::stringToFeatureList ( const QString &  string, const QgsFields &  fields, QTextCodec *  encoding  )

static

Attempts to parse a GeoJSON string to a collection of features.

Parameters

string	GeoJSON string to parse
fields	fields collection to use for parsed features
encoding	text encoding

Returns

list of parsed features, or an empty list if no features could be parsed

See also

stringToFields()

Note

this function is a wrapper around QgsOgrUtils::stringToFeatureList()

Definition at line 226 of file qgsjsonutils.cpp.

stringToFields()

QgsFields QgsJSONUtils::stringToFields ( const QString &  string, QTextCodec *  encoding  )

static

Attempts to retrieve the fields from a GeoJSON string representing a collection of features.

Parameters

string	GeoJSON string to parse
encoding	text encoding

Returns

retrieved fields collection, or an empty list if no fields could be determined from the string

See also

stringToFeatureList()

Note

this function is a wrapper around QgsOgrUtils::stringToFields()

Definition at line 231 of file qgsjsonutils.cpp.

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

• /tmp/buildd/qgis-2.18.21+99unstable/src/core/qgsjsonutils.h
• /tmp/buildd/qgis-2.18.21+99unstable/src/core/qgsjsonutils.cpp