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| /*************************************************************************** | ||
| qgsrelation.sip | ||
| -------------------------------------- | ||
| Date : 29.4.2013 | ||
| Copyright : (C) 2013 Matthias Kuhn | ||
| Email : matthias at opengis dot ch | ||
| *************************************************************************** | ||
| * * | ||
| * This program is free software; you can redistribute it and/or modify * | ||
| * it under the terms of the GNU General Public License as published by * | ||
| * the Free Software Foundation; either version 2 of the License, or * | ||
| * (at your option) any later version. * | ||
| * * | ||
| ***************************************************************************/ | ||
| /************************************************************************ | ||
| * This file has been generated automatically from * | ||
| * * | ||
| * src/core/qgsrelation.h * | ||
| * * | ||
| * Do not edit manually ! Edit header and run scripts/sipify.pl again * | ||
| ************************************************************************/ | ||
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| class QgsRelation | ||
| { | ||
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| %TypeHeaderCode | ||
| #include <qgsrelation.h> | ||
| #include "qgsrelation.h" | ||
| %End | ||
| public: | ||
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| QgsRelation(); | ||
| static QgsRelation createFromXml( const QDomNode& node ); | ||
| %Docstring | ||
| Default constructor. Creates an invalid relation. | ||
| %End | ||
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| static QgsRelation createFromXml( const QDomNode &node ); | ||
| %Docstring | ||
| Creates a relation from an XML structure. Used for reading .qgs projects. | ||
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| \param node The dom node containing the relation information | ||
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| void writeXml( QDomNode& node, QDomDocument& doc ) const; | ||
| :return: A relation | ||
| :rtype: QgsRelation | ||
| %End | ||
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| void writeXml( QDomNode &node, QDomDocument &doc ) const; | ||
| %Docstring | ||
| Writes a relation to an XML structure. Used for saving .qgs projects | ||
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| \param node The parent node in which the relation will be created | ||
| \param doc The document in which the relation will be saved | ||
| %End | ||
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| void setId( const QString &id ); | ||
| %Docstring | ||
| Set an id for this relation | ||
| %End | ||
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| void setId( const QString& id ); | ||
| void setName( const QString &name ); | ||
| %Docstring | ||
| Set a name for this relation | ||
| %End | ||
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| void setName( const QString& name ); | ||
| void setReferencingLayer( const QString &id ); | ||
| %Docstring | ||
| Set the referencing (child) layer id. This layer will be searched in the registry. | ||
| %End | ||
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| void setReferencingLayer( const QString& id ); | ||
| void setReferencedLayer( const QString &id ); | ||
| %Docstring | ||
| Set the referenced (parent) layer id. This layer will be searched in the registry. | ||
| %End | ||
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| void setReferencedLayer( const QString& id ); | ||
| void addFieldPair( const QString& referencingField, const QString& referencedField ); | ||
| // void addFieldPair( const FieldPair& fieldPair ); | ||
| void addFieldPair( const QString &referencingField, const QString &referencedField ); | ||
| %Docstring | ||
| Add a field pairs which is part of this relation | ||
| The first element of each pair are the field names of the foreign key. | ||
| The second element of each pair are the field names of the matching primary key. | ||
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| QgsFeatureIterator getRelatedFeatures( const QgsFeature& feature ) const; | ||
| \param referencingField The field name on the referencing (child) layer (FK) | ||
| \param referencedField The field name on the referenced (parent) layer (PK) | ||
| %End | ||
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| QgsFeatureIterator getRelatedFeatures( const QgsFeature &feature ) const; | ||
| %Docstring | ||
| Creates an iterator which returns all the features on the referencing (child) layer | ||
| which have a foreign key pointing to the provided feature. | ||
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| \param feature A feature from the referenced (parent) layer | ||
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| :return: An iterator with all the referenced features | ||
| \see getRelatedFeaturesRequest() | ||
| \see getRelatedFeaturesFilter() | ||
| :rtype: QgsFeatureIterator | ||
| %End | ||
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| QgsFeatureRequest getRelatedFeaturesRequest( const QgsFeature &feature ) const; | ||
| %Docstring | ||
| Creates a request to return all the features on the referencing (child) layer | ||
| which have a foreign key pointing to the provided feature. | ||
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| \param feature A feature from the referenced (parent) layer | ||
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| :return: A request for all the referencing features | ||
| \see getRelatedFeatures() | ||
| \see getRelatedFeaturesFilter() | ||
| :rtype: QgsFeatureRequest | ||
| %End | ||
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| QString getRelatedFeaturesFilter( const QgsFeature &feature ) const; | ||
| %Docstring | ||
| Returns a filter expression which returns all the features on the referencing (child) layer | ||
| which have a foreign key pointing to the provided feature. | ||
| \param feature A feature from the referenced (parent) layer | ||
| :return: expression filter string for all the referencing features | ||
| .. versionadded:: 2.16 | ||
| \see getRelatedFeatures() | ||
| \see getRelatedFeaturesRequest() | ||
| :rtype: str | ||
| %End | ||
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| QgsFeatureRequest getReferencedFeatureRequest( const QgsAttributes &attributes ) const; | ||
| %Docstring | ||
| Creates a request to return the feature on the referenced (parent) layer | ||
| which is referenced by the provided feature. | ||
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| \param attributes An attribute vector containing the foreign key | ||
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| :return: A request the referenced feature | ||
| .. note:: | ||
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| not available in Python bindings | ||
| :rtype: QgsFeatureRequest | ||
| %End | ||
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| QgsFeatureRequest getReferencedFeatureRequest( const QgsFeature &feature ) const; | ||
| %Docstring | ||
| Creates a request to return the feature on the referenced (parent) layer | ||
| which is referenced by the provided feature. | ||
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| \param feature A feature from the referencing (child) layer | ||
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| :return: A request the referenced feature | ||
| :rtype: QgsFeatureRequest | ||
| %End | ||
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| QgsFeature getReferencedFeature( const QgsFeature &feature ) const; | ||
| %Docstring | ||
| Creates a request to return the feature on the referenced (parent) layer | ||
| which is referenced by the provided feature. | ||
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| \param feature A feature from the referencing (child) layer | ||
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| :return: A request the referenced feature | ||
| :rtype: QgsFeature | ||
| %End | ||
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| QgsFeatureRequest getRelatedFeaturesRequest( const QgsFeature& feature ) const; | ||
| QString getRelatedFeaturesFilter( const QgsFeature& feature ) const; | ||
| QgsFeatureRequest getReferencedFeatureRequest( const QgsAttributes& attributes ) const; | ||
| QgsFeatureRequest getReferencedFeatureRequest( const QgsFeature& feature ) const; | ||
| QgsFeature getReferencedFeature( const QgsFeature& feature ) const; | ||
| QString name() const; | ||
| %Docstring | ||
| Returns a human readable name for this relation. Mostly used as title for the children. | ||
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| \see id() | ||
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| :return: A name | ||
| :rtype: str | ||
| %End | ||
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| QString id() const; | ||
| %Docstring | ||
| A (project-wide) unique id for this relation | ||
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| :return: The id | ||
| :rtype: str | ||
| %End | ||
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| void generateId(); | ||
| %Docstring | ||
| Generate a (project-wide) unique id for this relation | ||
| .. versionadded:: 3.0 | ||
| %End | ||
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| QString referencingLayerId() const; | ||
| %Docstring | ||
| Access the referencing (child) layer's id | ||
| This is the layer which has the field(s) which point to another layer | ||
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| :return: The id of the referencing layer | ||
| :rtype: str | ||
| %End | ||
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| QgsVectorLayer* referencingLayer() const; | ||
| QgsVectorLayer *referencingLayer() const; | ||
| %Docstring | ||
| Access the referencing (child) layer | ||
| This is the layer which has the field(s) which point to another layer | ||
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| :return: The referencing layer | ||
| :rtype: QgsVectorLayer | ||
| %End | ||
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| QString referencedLayerId() const; | ||
| %Docstring | ||
| Access the referenced (parent) layer's id | ||
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| QgsVectorLayer* referencedLayer() const; | ||
| :return: The id of the referenced layer | ||
| :rtype: str | ||
| %End | ||
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| QgsVectorLayer *referencedLayer() const; | ||
| %Docstring | ||
| Access the referenced (parent) layer | ||
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| :return: referenced layer | ||
| :rtype: QgsVectorLayer | ||
| %End | ||
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| /** | ||
| * Returns the field pairs which form this relation | ||
| * The first element of each pair are the field names fo the foreign key. | ||
| * The second element of each pair are the field names of the matching primary key. | ||
| * | ||
| * @return The fields forming the relation | ||
| */ | ||
| QMap< QString, QString > fieldPairs() const; | ||
| %Docstring | ||
| Returns the field pairs which form this relation | ||
| The first element of each pair are the field names of the foreign key. | ||
| The second element of each pair are the field names of the matching primary key. | ||
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| :return: The fields forming the relation | ||
| :rtype: QMap< str, QString > | ||
| %End | ||
| %MethodCode | ||
| const QList< QgsRelation::FieldPair >& pairs = sipCpp->fieldPairs(); | ||
| const QList< QgsRelation::FieldPair > &pairs = sipCpp->fieldPairs(); | ||
| sipRes = new QMap< QString, QString >(); | ||
| Q_FOREACH( const QgsRelation::FieldPair& pair, pairs ) | ||
| Q_FOREACH ( const QgsRelation::FieldPair &pair, pairs ) | ||
| { | ||
| sipRes->insert( pair.first, pair.second ); | ||
| sipRes->insert( pair.first, pair.second ); | ||
| } | ||
| %End | ||
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| QgsAttributeList referencedFields() const; | ||
| %Docstring | ||
| Returns a list of attributes used to form the referenced fields | ||
| (most likely primary key) on the referenced (parent) layer. | ||
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| :return: A list of attributes | ||
| :rtype: QgsAttributeList | ||
| %End | ||
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| QgsAttributeList referencingFields() const; | ||
| %Docstring | ||
| Returns a list of attributes used to form the referencing fields | ||
| (foreign key) on the referencing (child) layer. | ||
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| :return: A list of attributes | ||
| :rtype: QgsAttributeList | ||
| %End | ||
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| bool isValid() const; | ||
| bool hasEqualDefinition( const QgsRelation& other ) const; | ||
| %Docstring | ||
| Returns the validity of this relation. Don't use the information if it's not valid. | ||
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| :return: true if the relation is valid | ||
| :rtype: bool | ||
| %End | ||
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| bool hasEqualDefinition( const QgsRelation &other ) const; | ||
| %Docstring | ||
| Compares the two QgsRelation, ignoring the name and the ID. | ||
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| \param other The other relation | ||
| :return: true if they are similar | ||
| .. versionadded:: 3.0 | ||
| :rtype: bool | ||
| %End | ||
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| QString resolveReferencedField( const QString &referencingField ) const; | ||
| %Docstring | ||
| Get the referenced field counterpart given a referencing field. | ||
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| .. versionadded:: 3.0 | ||
| :rtype: str | ||
| %End | ||
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| QString resolveReferencingField( const QString &referencedField ) const; | ||
| %Docstring | ||
| Get the referencing field counterpart given a referenced field. | ||
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| .. versionadded:: 3.0 | ||
| :rtype: str | ||
| %End | ||
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| QString resolveReferencedField( const QString& referencingField ) const; | ||
| QString resolveReferencingField( const QString& referencedField ) const; | ||
| }; | ||
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| /************************************************************************ | ||
| * This file has been generated automatically from * | ||
| * * | ||
| * src/core/qgsrelation.h * | ||
| * * | ||
| * Do not edit manually ! Edit header and run scripts/sipify.pl again * | ||
| ************************************************************************/ |
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