Add missing docs

python/core/qgsmaplayer.sip

@@ -447,6 +447,12 @@ class QgsMapLayer : QObject
      */
     virtual QString loadNamedStyle( const QString& uri, bool &resultFlag /Out/ );
 
+    /** Retrieve a named style for this layer from a sqlite database.
+     * @param db path to sqlite database
+     * @param uri uri for table
+     * @param qml will be set to QML style content from database
+     * @returns true if style was successfully loaded
+     */
     virtual bool loadNamedStyleFromDb( const QString &db, const QString &uri, QString &qml /Out/ );
 
     /**
@@ -500,7 +506,22 @@ class QgsMapLayer : QObject
      */
     virtual QString saveNamedStyle( const QString &uri, bool &resultFlag /Out/ );
 
+    /** Saves the properties of this layer to an SLD format file.
+     * @param uri uri of destination for exported SLD file.
+     * @param resultFlag a reference to a flag that will be set to false if
+     * the SLD file could not be generated
+     * @returns a string with any status or error messages
+     * @see loadSldStyle()
+     */
     virtual QString saveSldStyle( const QString &uri, bool &resultFlag ) const;
+
+    /** Attempts to style the layer using the formatting from an SLD type file.
+     * @param uri uri of source SLD file
+     * @param resultFlag a reference to a flag that will be set to false if
+     * the SLD file could not be loaded
+     * @returns a string with any status or error messages
+     * @see saveSldStyle()
+     */
     virtual QString loadSldStyle( const QString &uri, bool &resultFlag );
 
     virtual bool readSld( const QDomNode &node, QString &errorMessage );

python/core/qgsvectorlayer.sip

@@ -1083,8 +1083,14 @@ class QgsVectorLayer : QgsMapLayer
      * so if a stage fails, it's difficult to roll back cleanly.
      * Therefore any error message also includes which stage failed so
      * that the user has some chance of repairing the damage cleanly.
+     * @see commitErrors()
      */
     bool commitChanges();
+
+    /** Returns a list containing any error messages generated when attempting
+     * to commit changes to the layer.
+     * @see commitChanges()
+     */
     QStringList commitErrors() const;
 
     /** Stop editing and discard the edits

src/core/qgsmaplayer.h

@@ -466,6 +466,12 @@ class CORE_EXPORT QgsMapLayer : public QObject
      */
     virtual QString loadNamedStyle( const QString& uri, bool &resultFlag );
 
+    /** Retrieve a named style for this layer from a sqlite database.
+     * @param db path to sqlite database
+     * @param uri uri for table
+     * @param qml will be set to QML style content from database
+     * @returns true if style was successfully loaded
+     */
     virtual bool loadNamedStyleFromDb( const QString &db, const QString &uri, QString &qml );
 
     /**
@@ -520,7 +526,22 @@ class CORE_EXPORT QgsMapLayer : public QObject
      */
     virtual QString saveNamedStyle( const QString &uri, bool &resultFlag );
 
+    /** Saves the properties of this layer to an SLD format file.
+     * @param uri uri of destination for exported SLD file.
+     * @param resultFlag a reference to a flag that will be set to false if
+     * the SLD file could not be generated
+     * @returns a string with any status or error messages
+     * @see loadSldStyle()
+     */
     virtual QString saveSldStyle( const QString &uri, bool &resultFlag ) const;
+
+    /** Attempts to style the layer using the formatting from an SLD type file.
+     * @param uri uri of source SLD file
+     * @param resultFlag a reference to a flag that will be set to false if
+     * the SLD file could not be loaded
+     * @returns a string with any status or error messages
+     * @see saveSldStyle()
+     */
     virtual QString loadSldStyle( const QString &uri, bool &resultFlag );
 
     virtual bool readSld( const QDomNode &node, QString &errorMessage )

src/core/qgsvectorlayer.h

@@ -1472,8 +1472,14 @@ class CORE_EXPORT QgsVectorLayer : public QgsMapLayer
      * so if a stage fails, it's difficult to roll back cleanly.
      * Therefore any error message also includes which stage failed so
      * that the user has some chance of repairing the damage cleanly.
+     * @see commitErrors()
      */
     bool commitChanges();
+
+    /** Returns a list containing any error messages generated when attempting
+     * to commit changes to the layer.
+     * @see commitChanges()
+     */
     QStringList commitErrors() const;
 
     /** Stop editing and discard the edits

src/core/qgsvectorlayerfeatureiterator.h

@@ -37,7 +37,12 @@ class QgsVectorLayerFeatureIterator;
 class QgsVectorLayerFeatureSource : public QgsAbstractFeatureSource
 {
   public:
+
+    /** Constructor for QgsVectorLayerFeatureSource.
+     * @param layer source layer
+     */
     explicit QgsVectorLayerFeatureSource( const QgsVectorLayer* layer );
+
     ~QgsVectorLayerFeatureSource();
 
     virtual QgsFeatureIterator getFeatures( const QgsFeatureRequest& request ) override;