27 template <
class Key,
class T>
void mapToReversedLists(
const QMap< Key, T > &map, QList<Key> &ks, QList<T> &vs )
29 ks.reserve( map.size() );
30 vs.reserve( map.size() );
31 typename QMap<Key, T>::const_iterator i = map.constEnd();
32 while ( i-- != map.constBegin() )
35 vs.append( i.value() );
54 QgsDebugMsgLevel( QStringLiteral(
"undo index changed %1" ).arg( index ), 4 );
72 fields.
rename( renameIt.key(), renameIt.value() );
107 for ( QgsAttributeMap::const_iterator it = map.begin(); it != map.end(); ++it )
108 attrs[it.key()] = it.value();
142 for ( QgsFeatureList::iterator iter = features.begin(); iter != features.end(); ++iter )
157 QgsDebugMsg( QStringLiteral(
"Cannot delete features (missing DeleteFeature capability)" ) );
165 QgsDebugMsg( QStringLiteral(
"Cannot delete features (in the list of added features)" ) );
173 QgsDebugMsg( QStringLiteral(
"Cannot delete features (in the list of deleted features)" ) );
186 QgsDebugMsg( QStringLiteral(
"Cannot delete features (missing DeleteFeatures capability)" ) );
191 const auto constFids = fids;
223 for (
auto it = newValues.constBegin() ; it != newValues.constEnd(); ++it )
225 const int field = it.key();
226 const QVariant newValue = it.value();
229 if ( oldValues.contains(
field ) )
230 oldValue = oldValues[
field];
269 for (
const QgsField &updatedField : fields )
271 if ( updatedField.name() ==
field.
name() )
310 if ( newName.isEmpty() )
317 for (
const QgsField &updatedField : fields )
319 if ( updatedField.name() == newName )
331 commitErrors.clear();
350 if ( ( ! f.hasGeometry() ) ||
351 ( f.geometry().wkbType() == provider->
wkbType() ) )
356 commitErrors << tr(
"ERROR: %n feature(s) not added - geometry type is not compatible with the current layer.",
"not added features count",
mAddedFeatures.size() );
365 commitErrors << tr(
"ERROR: %n feature(s) not added - provider doesn't support adding features.",
"not added features count",
mAddedFeatures.size() );
377 commitErrors << tr(
"SUCCESS: %n geometries were changed.",
"changed geometries count",
mChangedGeometries.size() );
384 commitErrors << tr(
"ERROR: %n geometries not changed.",
"not changed geometries count",
mChangedGeometries.size() );
394 bool attributesChanged =
false;
399 commitErrors << tr(
"SUCCESS: %n attribute(s) deleted.",
"deleted attributes count",
mDeletedAttributeIds.size() );
404 attributesChanged =
true;
408 commitErrors << tr(
"ERROR: %n attribute(s) not deleted.",
"not deleted attributes count",
mDeletedAttributeIds.size() );
410 QString list =
"ERROR: Pending attribute deletes:";
412 for (
int idx : constMDeletedAttributeIds )
416 commitErrors << list;
427 commitErrors << tr(
"SUCCESS: %n attribute(s) renamed.",
"renamed attributes count",
mRenamedAttributes.size() );
432 attributesChanged =
true;
436 commitErrors << tr(
"ERROR: %n attribute(s) not renamed",
"not renamed attributes count",
mRenamedAttributes.size() );
448 commitErrors << tr(
"SUCCESS: %n attribute(s) added.",
"added attributes count",
mAddedAttributes.size() );
453 attributesChanged =
true;
457 commitErrors << tr(
"ERROR: %n new attribute(s) not added",
"not added attributes count",
mAddedAttributes.size() );
459 QString list =
"ERROR: Pending adds:";
461 for (
QgsField f : constMAddedAttributes )
463 list.append(
' ' + f.name() );
465 commitErrors << list;
474 bool attributeChangesOk =
true;
475 if ( success && attributesChanged )
482 commitErrors << tr(
"ERROR: the count of fields is incorrect after addition/removal of fields!" );
483 attributeChangesOk =
false;
486 for (
int i = 0; i < std::min( oldFields.
count(), newFields.
count() ); ++i )
490 if ( attributeChangesOk && oldField != newField )
493 << tr(
"ERROR: field with index %1 is not the same!" ).arg( i )
496 << QStringLiteral(
"%1: name=%2 type=%3 typeName=%4 len=%5 precision=%6" )
497 .arg( tr(
"expected field" ),
499 QVariant::typeToName( oldField.
type() ),
503 << QStringLiteral(
"%1: name=%2 type=%3 typeName=%4 len=%5 precision=%6" )
504 .arg( tr(
"retrieved field" ),
506 QVariant::typeToName( newField.
type() ),
510 attributeChangesOk =
false;
515 if ( success && attributeChangesOk )
544 commitErrors << tr(
"SUCCESS: %n attribute value(s) changed.",
"changed attribute values count",
mChangedAttributeValues.size() );
551 commitErrors << tr(
"ERROR: %n attribute value change(s) not applied.",
"not changed attribute values count",
mChangedAttributeValues.size() );
553 QString list =
"ERROR: pending changes:";
559 for (
int idx : constKeys )
565 commitErrors << list;
579 commitErrors << tr(
"SUCCESS: %n feature(s) deleted.",
"deleted features count",
mDeletedFeatureIds.size() );
593 commitErrors << tr(
"ERROR: %n feature(s) not deleted.",
"not deleted features count",
mDeletedFeatureIds.size() );
595 QString list =
"ERROR: pending deletes:";
601 commitErrors << list;
614 QList<QgsFeatureId> ids;
622 for (
int i = 0; i < featuresToAdd.count(); ++i )
627 if ( provider->
addFeatures( featuresToAdd, QgsFeatureSink::Flag::RollBackOnErrors ) )
629 commitErrors << tr(
"SUCCESS: %n feature(s) added.",
"added features count", featuresToAdd.size() );
634 for (
int i = 0; i < featuresToAdd.count(); ++i )
636 if ( featuresToAdd[i].
id() != ids[i] )
639 if (
L->mSelectedFeatureIds.contains( ids[i] ) )
641 L->mSelectedFeatureIds.remove( ids[i] );
642 L->mSelectedFeatureIds.insert( featuresToAdd[i].
id() );
653 commitErrors << tr(
"ERROR: %n feature(s) not added.",
"not added features count",
mAddedFeatures.size() );
655 QString list =
"ERROR: pending adds:";
660 for (
int i = 0; i <
L->
fields().size(); i++ )
662 list.append( QString(
" %1:%2" ).arg(
L->
fields().
at( i ).
name() ).arg( f.attributes()[i].toString() ) );
666 commitErrors << list;
673 commitErrors << tr(
"ERROR: %n feature(s) not added - provider doesn't support adding features.",
"not added features count",
mAddedFeatures.size() );
685 commitErrors << tr(
"\n Provider errors:" );
686 const auto constErrors = provider->
errors();
687 for ( QString e : constErrors )
689 commitErrors <<
" " + e.replace(
'\n', QLatin1String(
"\n " ) );
720 QString QgsVectorLayerEditBuffer::dumpEditBuffer()
725 msg +=
"CHANGED GEOMETRIES:\n";
729 msg += QString(
"- FID %1: %2" ).arg( it.key() ).arg( it.value().to );
750 attrs.insert( index, QVariant() );
751 featureIt->setAttributes( attrs );
757 std::sort( sortedRenamedIndices.begin(), sortedRenamedIndices.end(), std::greater< int >() );
758 const auto constSortedRenamedIndices = sortedRenamedIndices;
759 for (
int renameIndex : constSortedRenamedIndices )
761 if ( renameIndex >= index )
778 if ( attrMap.contains( index ) )
779 attrMap.remove( index );
790 attrs.remove( index );
791 featureIt->setAttributes( attrs );
797 std::sort( sortedRenamedIndices.begin(), sortedRenamedIndices.end() );
800 const auto constSortedRenamedIndices = sortedRenamedIndices;
801 for (
int renameIndex : constSortedRenamedIndices )
803 if ( renameIndex > index )
819 for ( QgsAttributeMap::const_iterator it = map.constBegin(); it != map.constEnd(); ++it )
821 int attrIndex = it.key();
822 updatedMap.insert( attrIndex < index ? attrIndex : attrIndex + offset, it.value() );
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
void setAttributes(const QgsAttributes &attrs)
Sets the feature's attributes.
void setGeometry(const QgsGeometry &geometry)
Set the feature's geometry.
Encapsulate a field in an attribute table or data source.
QString typeName() const
Gets the field type.
Container of fields for a vector layer.
bool append(const QgsField &field, FieldOrigin origin=OriginProvider, int originIndex=-1)
Appends a field. The field must have unique name, otherwise it is rejected (returns false)
void remove(int fieldIdx)
Removes the field with the given index.
@ OriginExpression
Field is calculated from an expression.
@ OriginEdit
Field has been temporarily added in editing mode (originIndex = index in the list of added attributes...
@ OriginJoin
Field comes from a joined layer (originIndex / 1000 = index of the join, originIndex % 1000 = index w...
@ OriginProvider
Field comes from the underlying data provider of the vector layer (originIndex = index in provider's ...
int count() const
Returns number of items.
FieldOrigin fieldOrigin(int fieldIdx) const
Returns the field's origin (value from an enumeration).
QgsField at(int i) const
Returns the field at particular index (must be in range 0..N-1).
int fieldOriginIndex(int fieldIdx) const
Returns the field's origin index (its meaning is specific to each type of origin).
bool rename(int fieldIdx, const QString &name)
Renames a name of field.
A geometry is the spatial representation of a feature.
QString providerType() const
Returns the provider type (provider key) for this layer.
QString id() const
Returns the layer's unique ID, which is used to access this layer from QgsProject.
QUndoStack * undoStack()
Returns pointer to layer's undo stack.
static void logMessage(const QString &message, const QString &tag=QString(), Qgis::MessageLevel level=Qgis::MessageLevel::Warning, bool notifyUser=true)
Adds a message to the log instance (and creates it if necessary).
This is the base class for vector data providers.
@ ChangeFeatures
Supports joint updates for attributes and geometry. Providers supporting this should still define Cha...
@ ChangeGeometries
Allows modifications of geometries.
@ DeleteAttributes
Allows deletion of attributes (fields)
@ DeleteFeatures
Allows deletion of features.
@ AddAttributes
Allows addition of new attributes (fields)
@ RenameAttributes
Supports renaming attributes (fields). Since QGIS 2.16.
@ ChangeAttributeValues
Allows modification of attribute values.
@ AddFeatures
Allows adding features.
QgsWkbTypes::Type wkbType() const override=0
Returns the geometry type which is returned by this layer.
bool supportedType(const QgsField &field) const
check if provider supports type of field
virtual bool changeGeometryValues(const QgsGeometryMap &geometry_map)
Changes geometries of existing features.
void clearErrors()
Clear recorded errors.
QStringList errors() const
Gets recorded errors.
virtual bool doesStrictFeatureTypeCheck() const
Returns true if the provider is strict about the type of inserted features (e.g.
QgsGeometry convertToProviderType(const QgsGeometry &geom) const
Converts the geometry to the provider type if possible / necessary.
virtual bool changeFeatures(const QgsChangedAttributesMap &attr_map, const QgsGeometryMap &geometry_map)
Changes attribute values and geometries of existing features.
virtual bool changeAttributeValues(const QgsChangedAttributesMap &attr_map)
Changes attribute values of existing features.
virtual bool deleteFeatures(const QgsFeatureIds &id)
Deletes one or more features from the provider.
bool addFeatures(QgsFeatureList &flist, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags()) override
Adds a list of features to the sink.
QgsFields fields() const override=0
Returns the fields associated with this data provider.
virtual bool addAttributes(const QList< QgsField > &attributes)
Adds new attributes to the provider.
virtual Q_INVOKABLE QgsVectorDataProvider::Capabilities capabilities() const
Returns flags containing the supported capabilities.
virtual bool renameAttributes(const QgsFieldNameMap &renamedAttributes)
Renames existing attributes.
virtual bool deleteAttributes(const QgsAttributeIds &attributes)
Deletes existing attributes from the provider.
bool hasErrors() const
Provider has errors to report.
void committedAttributesDeleted(const QString &layerId, const QgsAttributeList &deletedAttributes)
Signals emitted after committing changes.
virtual bool deleteFeature(QgsFeatureId fid)
Delete a feature from the layer (but does not commit it)
QgsFeatureMap mAddedFeatures
New features which are not committed.
void committedAttributeValuesChanges(const QString &layerId, const QgsChangedAttributesMap &changedAttributesValues)
friend class QgsVectorLayerUndoCommandAddFeature
virtual bool renameAttribute(int attr, const QString &newName)
Renames an attribute field (but does not commit it)
void updateFeatureGeometry(QgsFeature &f)
Update feature with uncommitted geometry updates.
virtual bool deleteFeatures(const QgsFeatureIds &fid)
Deletes a set of features from the layer (but does not commit it)
void handleAttributeDeleted(int index)
Update added and changed features after removal of an attribute.
virtual bool addAttribute(const QgsField &field)
Adds an attribute field (but does not commit it) returns true if the field was added.
void committedAttributesAdded(const QString &layerId, const QList< QgsField > &addedAttributes)
virtual bool addFeatures(QgsFeatureList &features)
Insert a copy of the given features into the layer (but does not commit it)
QgsVectorLayerEditBuffer()=default
Constructor for QgsVectorLayerEditBuffer.
QgsFieldNameMap mRenamedAttributes
Renamed attributes which are not committed.
QgsFeatureIds allAddedOrEditedFeatures() const
Returns a list of the features IDs for all newly added or edited features in the buffer.
QgsGeometryMap mChangedGeometries
Changed geometries which are not committed.
void committedAttributesRenamed(const QString &layerId, const QgsFieldNameMap &renamedAttributes)
Emitted after committing an attribute rename.
virtual bool changeAttributeValues(QgsFeatureId fid, const QgsAttributeMap &newValues, const QgsAttributeMap &oldValues)
Changes values of attributes (but does not commit it).
QgsAttributeList mDeletedAttributeIds
Deleted attributes fields which are not committed. The list is kept sorted.
QgsFeatureIds mDeletedFeatureIds
Deleted feature IDs which are not committed.
virtual bool isModified() const
Returns true if the provider has been modified since the last commit.
void updateFields(QgsFields &fields)
Updates fields.
void committedFeaturesAdded(const QString &layerId, const QgsFeatureList &addedFeatures)
void featureDeleted(QgsFeatureId fid)
void committedGeometriesChanges(const QString &layerId, const QgsGeometryMap &changedGeometries)
virtual bool addFeature(QgsFeature &f)
Adds a feature.
virtual void rollBack()
Stop editing and discard the edits.
friend class QgsVectorLayerUndoCommandRenameAttribute
friend class QgsVectorLayerUndoCommandChangeGeometry
void undoIndexChanged(int index)
friend class QgsVectorLayerUndoCommandDeleteAttribute
void featureAdded(QgsFeatureId fid)
QgsChangedAttributesMap mChangedAttributeValues
Changed attributes values which are not committed.
virtual bool commitChanges(QStringList &commitErrors)
Attempts to commit any changes to disk.
friend class QgsVectorLayerUndoCommandChangeAttribute
friend class QgsVectorLayerUndoCommandAddAttribute
void handleAttributeAdded(int index)
Update added and changed features after addition of an attribute.
virtual bool deleteAttribute(int attr)
Deletes an attribute field (but does not commit it)
virtual bool changeAttributeValue(QgsFeatureId fid, int field, const QVariant &newValue, const QVariant &oldValue=QVariant())
Changed an attribute value (but does not commit it)
void updateAttributeMapIndex(QgsAttributeMap &attrs, int index, int offset) const
Updates an index in an attribute map to a new value (for updates of changed attributes)
QList< QgsField > mAddedAttributes
Added attributes fields which are not committed.
virtual bool changeGeometry(QgsFeatureId fid, const QgsGeometry &geom)
Change feature's geometry.
void layerModified()
Emitted when modifications has been done on layer.
void updateChangedAttributes(QgsFeature &f)
Update feature with uncommitted attribute updates.
void committedFeaturesRemoved(const QString &layerId, const QgsFeatureIds &deletedFeatureIds)
friend class QgsVectorLayerUndoCommandDeleteFeature
static void matchAttributesToFields(QgsFeature &feature, const QgsFields &fields)
Matches the attributes in feature to the specified fields.
Represents a vector layer which manages a vector based data sets.
void updateFields()
Will regenerate the fields property of this layer by obtaining all fields from the dataProvider,...
bool isSpatial() const FINAL
Returns true if this is a geometry layer and false in case of NoGeometry (table only) or UnknownGeome...
QgsFields fields() const FINAL
Returns the list of fields of this layer.
QString storageType() const
Returns the permanent storage type for this layer as a friendly name.
virtual void updateExtents(bool force=false)
Update the extents for the layer.
QgsVectorDataProvider * dataProvider() FINAL
Returns the layer's data provider, it may be nullptr.
QMap< int, QVariant > QgsAttributeMap
QList< QgsFeature > QgsFeatureList
QSet< QgsFeatureId > QgsFeatureIds
#define FID_TO_STRING(fid)
qint64 QgsFeatureId
64 bit feature ids negative numbers are used for uncommitted/newly added features
#define QgsDebugMsgLevel(str, level)
void mapToReversedLists(const QMap< Key, T > &map, QList< Key > &ks, QList< T > &vs)
populate two lists (ks, vs) from map - in reverse order