write metadata with XML

Author: Gustry

python/core/metadata/qgslayermetadata.sip

@@ -382,6 +382,13 @@ class QgsLayerMetadata
  :rtype: QgsLayerMetadata.ConstraintList
 %End
 
+    void addConstraint( const QgsLayerMetadata::Constraint &constraint );
+%Docstring
+ Adds an individual constraint to the existing constraints.
+.. seealso:: constraints()
+.. seealso:: setConstraints()
+%End
+
     void setConstraints( const QgsLayerMetadata::ConstraintList &constraints );
 %Docstring
  Sets the list of ``constraints`` associated with using the resource.
@@ -641,6 +648,25 @@ class QgsLayerMetadata
 .. seealso:: saveToLayer()
 %End
 
+    bool readMetadataXml( const QDomElement &metadataElement );
+%Docstring
+ Sets state from Dom document
+ \param metadataElement The Dom element corresponding to ``resourceMetadata'' tag
+
+ :return: true if successful
+ :rtype: bool
+%End
+
+    bool writeMetadataXml( QDomElement &metadataElement, QDomDocument &document ) const;
+%Docstring
+ Stores state in Dom node
+ \param metadataElement is a Dom element corresponding to ``resourceMetadata'' tag
+ \param document is a the dom document being written
+
+ :return: true if successful
+ :rtype: bool
+%End
+
 };
 
 

resources/qgis-resource-metadata.xml

@@ -15,13 +15,21 @@
     </keywords>
     <fees>None</fees>
     <constraints type="access">None</constraints>
+    <constraints type="other">None</constraints>
     <rights>Copyright foo 2017</rights>
+    <license>License 1</license>
+    <license>License 2</license>
     <encoding>utf-8</encoding>
     <crs>EPSG:4326</crs>
     <extent>
         <spatial dimensions="2" crs="EPSG:4326" minx="-180" miny="-90" maxx="180" maxy="90"/>
+        <spatial dimensions="2" crs="EPSG:4326" minx="-180" miny="-90" maxx="180" maxy="90" minz="10" maxz="50"/>
         <temporal>
             <instant>2001-12-17T09:30:47Z</instant>
+            <period>
+              <start>2001-12-17T09:30:47Z</start>
+              <end>2020-12-17T09:30:47Z</end>
+            </period>
         </temporal>
     </extent>
     <contact>
@@ -46,4 +54,6 @@
         <link name="geonode:roads" type="OGC:WFS" description="my GeoNode road layer" url="http://example.org/wfs"/>
         <link name="roads" type="WWW:LINK" description="full dataset download" url="http://example.org/roads.tgz" format="ESRI Shapefile" mimeType="application/gzip" size="283676"/>
     </links>
+    <history>Buffering</history>
+    <history>Reprojecting</history>
 </ResourceMetadata>

resources/qgis-resource-metadata.xsd

@@ -84,7 +84,7 @@
       <xs:element name="license" type="xs:string" minOccurs="1" maxOccurs="unbounded">
 				<xs:annotation>
 					<xs:documentation>License associated with a given resource (examples: http://opendefinition.org/licenses/).</xs:documentation>
-				</xs:annotation>        
+				</xs:annotation>
       </xs:element>
 			<xs:element name="encoding" type="xs:string" minOccurs="0">
 				<xs:annotation>
@@ -122,7 +122,7 @@
         <xs:annotation>
     	    <xs:documentation>Freeform description of the history or lineage of the resource.</xs:documentation>
         </xs:annotation>
-      </xs:element> 
+      </xs:element>
 		</xs:sequence>
 		<xs:attribute name="version" use="required" fixed="1.0">
 			<xs:annotation>
@@ -339,11 +339,11 @@
 		<xs:attributeGroup ref="rm:linkAttrs"/>
 	</xs:complexType>
 	<xs:attributeGroup name="linkAttrs">
-		<xs:attribute name="name" type="xs:string"/>
-		<xs:attribute name="type" type="xs:string"/>
-		<xs:attribute name="description" type="xs:string" use="optional"/>
+		<xs:attribute name="name" type="xs:string" use="required"/>
+		<xs:attribute name="type" type="xs:string" use="required"/>
 		<xs:attribute name="url" type="xs:anyURI" use="required"/>
-		<xs:attribute name="format" type="xs:string" use="optional"/>
+    <xs:attribute name="description" type="xs:string" use="optional"/>
+    <xs:attribute name="format" type="xs:string" use="optional"/>
 		<xs:attribute name="mimeType" type="xs:string" use="optional"/>
 		<xs:attribute name="size" type="xs:string" use="optional"/>
 	</xs:attributeGroup>