Add support for WFS 1.0.0 to ol.format.WFS#writeTransaction

- Add a version property to olx.format.WFSWriteTransactionOptions to set
the WFS protocol version to use
- Use the specified version to use the correct schema and version in the
GML request
- Use the version to select the proper GML serializer

src/ol/format/wfs.js

@@ -2,6 +2,7 @@ goog.provide('ol.format.WFS');
 
 goog.require('ol');
 goog.require('ol.asserts');
+goog.require('ol.format.GML2');
 goog.require('ol.format.GML3');
 goog.require('ol.format.GMLBase');
 goog.require('ol.format.filter');
@@ -53,7 +54,8 @@ ol.format.WFS = function(opt_options) {
    * @type {string}
    */
   this.schemaLocation_ = options.schemaLocation ?
-      options.schemaLocation : ol.format.WFS.SCHEMA_LOCATION;
+      options.schemaLocation :
+          ol.format.WFS.SCHEMA_LOCATIONS[ol.format.WFS.DEFAULT_VERSION];
 
   ol.format.XMLFeature.call(this);
 };
@@ -88,12 +90,23 @@ ol.format.WFS.OGCNS = 'http://www.opengis.net/ogc';
 ol.format.WFS.WFSNS = 'http://www.opengis.net/wfs';
 
 
+/**
+ * @const
+ * @type {Object.<string, string>}
+ */
+ol.format.WFS.SCHEMA_LOCATIONS = {
+  '1.1.0': 'http://www.opengis.net/wfs ' +
+      'http://schemas.opengis.net/wfs/1.1.0/wfs.xsd',
+  '1.0.0': 'http://www.opengis.net/wfs ' +
+      'http://schemas.opengis.net/wfs/1.0.0/wfs.xsd'
+};
+
+
 /**
  * @const
  * @type {string}
  */
-ol.format.WFS.SCHEMA_LOCATION = 'http://www.opengis.net/wfs ' +
-    'http://schemas.opengis.net/wfs/1.1.0/wfs.xsd';
+ol.format.WFS.DEFAULT_VERSION = '1.1.0';
 
 
 /**
@@ -360,9 +373,14 @@ ol.format.WFS.writeFeature_ = function(node, feature, objectStack) {
   var context = objectStack[objectStack.length - 1];
   var featureType = context['featureType'];
   var featureNS = context['featureNS'];
+  var gmlVersion = context['gmlVersion'];
   var child = ol.xml.createElementNS(featureNS, featureType);
   node.appendChild(child);
-  ol.format.GML3.prototype.writeFeatureElement(child, feature, objectStack);
+  if (gmlVersion === 2) {
+    ol.format.GML2.prototype.writeFeatureElement(child, feature, objectStack);
+  } else {
+    ol.format.GML3.prototype.writeFeatureElement(child, feature, objectStack);
+  }
 };
 
 
@@ -433,7 +451,8 @@ ol.format.WFS.writeUpdate_ = function(node, feature, objectStack) {
       }
     }
     ol.xml.pushSerializeAndPop(/** @type {ol.XmlNodeStackItem} */ (
-        {node: node, 'srsName': context['srsName']}),
+      {'gmlVersion': context['gmlVersion'], node: node,
+        'srsName': context['srsName']}),
         ol.format.WFS.TRANSACTION_SERIALIZERS_,
         ol.xml.makeSimpleNodeFactory('Property'), values,
         objectStack);
@@ -450,14 +469,21 @@ ol.format.WFS.writeUpdate_ = function(node, feature, objectStack) {
  */
 ol.format.WFS.writeProperty_ = function(node, pair, objectStack) {
   var name = ol.xml.createElementNS(ol.format.WFS.WFSNS, 'Name');
+  var context = objectStack[objectStack.length - 1];
+  var gmlVersion = context['gmlVersion'];
   node.appendChild(name);
   ol.format.XSD.writeStringTextNode(name, pair.name);
   if (pair.value !== undefined && pair.value !== null) {
     var value = ol.xml.createElementNS(ol.format.WFS.WFSNS, 'Value');
     node.appendChild(value);
     if (pair.value instanceof ol.geom.Geometry) {
-      ol.format.GML3.prototype.writeGeometryElement(value,
-          pair.value, objectStack);
+      if (gmlVersion === 2) {
+        ol.format.GML2.prototype.writeGeometryElement(value,
+            pair.value, objectStack);
+      } else {
+        ol.format.GML3.prototype.writeGeometryElement(value,
+            pair.value, objectStack);
+      }
     } else {
       ol.format.XSD.writeStringTextNode(value, pair.value);
     }
@@ -851,8 +877,11 @@ ol.format.WFS.prototype.writeTransaction = function(inserts, updates, deletes,
     options) {
   var objectStack = [];
   var node = ol.xml.createElementNS(ol.format.WFS.WFSNS, 'Transaction');
+  var version = options.version ?
+        options.version : ol.format.WFS.DEFAULT_VERSION;
+  var gmlVersion = version === '1.0.0' ? 2 : 3;
   node.setAttribute('service', 'WFS');
-  node.setAttribute('version', '1.1.0');
+  node.setAttribute('version', version);
   var baseObj;
   /** @type {ol.XmlNodeStackItem} */
   var obj;
@@ -862,12 +891,13 @@ ol.format.WFS.prototype.writeTransaction = function(inserts, updates, deletes,
       node.setAttribute('handle', options.handle);
     }
   }
+  var schemaLocation = ol.format.WFS.SCHEMA_LOCATIONS[version];
   ol.xml.setAttributeNS(node, 'http://www.w3.org/2001/XMLSchema-instance',
-      'xsi:schemaLocation', this.schemaLocation_);
+      'xsi:schemaLocation', schemaLocation);
   if (inserts) {
     obj = {node: node, 'featureNS': options.featureNS,
       'featureType': options.featureType, 'featurePrefix': options.featurePrefix,
-      'srsName': options.srsName};
+      'gmlVersion': gmlVersion, 'srsName': options.srsName};
     ol.obj.assign(obj, baseObj);
     ol.xml.pushSerializeAndPop(obj,
         ol.format.WFS.TRANSACTION_SERIALIZERS_,
@@ -877,7 +907,7 @@ ol.format.WFS.prototype.writeTransaction = function(inserts, updates, deletes,
   if (updates) {
     obj = {node: node, 'featureNS': options.featureNS,
       'featureType': options.featureType, 'featurePrefix': options.featurePrefix,
-      'srsName': options.srsName};
+      'gmlVersion': gmlVersion, 'srsName': options.srsName};
     ol.obj.assign(obj, baseObj);
     ol.xml.pushSerializeAndPop(obj,
         ol.format.WFS.TRANSACTION_SERIALIZERS_,
@@ -887,7 +917,7 @@ ol.format.WFS.prototype.writeTransaction = function(inserts, updates, deletes,
   if (deletes) {
     ol.xml.pushSerializeAndPop({node: node, 'featureNS': options.featureNS,
       'featureType': options.featureType, 'featurePrefix': options.featurePrefix,
-      'srsName': options.srsName},
+      'gmlVersion': gmlVersion, 'srsName': options.srsName},
     ol.format.WFS.TRANSACTION_SERIALIZERS_,
     ol.xml.makeSimpleNodeFactory('Delete'), deletes,
     objectStack);
@@ -895,7 +925,7 @@ ol.format.WFS.prototype.writeTransaction = function(inserts, updates, deletes,
   if (options.nativeElements) {
     ol.xml.pushSerializeAndPop({node: node, 'featureNS': options.featureNS,
       'featureType': options.featureType, 'featurePrefix': options.featurePrefix,
-      'srsName': options.srsName},
+      'gmlVersion': gmlVersion, 'srsName': options.srsName},
     ol.format.WFS.TRANSACTION_SERIALIZERS_,
     ol.xml.makeSimpleNodeFactory('Native'), options.nativeElements,
     objectStack);