fix #634: build attributes with oneListGroup and attributesGroupName (#653)

Don't ignore attributes when building to xml with oneListGroup and
attributesGroupName enabled.

Co-authored-by: Andreas Naziris <[email protected]>

Author: a-rasin

spec/j2x_spec.js

@@ -496,6 +496,30 @@ describe("XMLBuilder", function() {
         expect(result).toEqual(expected);
     });
 
+    it("should handle attributes with oneListGroup", function() {
+        const jObj = {
+            "a": [
+                {
+                    "b": "1"
+                },
+                {
+                    "b": "2"
+                },
+                {
+                    "@": {
+                        "foo": "bar",
+                        "baz": "foo",
+                        "bar": "baz"
+                    }
+                }
+            ],
+        };
+        const builder = new XMLBuilder({oneListGroup:"true", attributesGroupName: "@"});
+        const result = builder.build(jObj);
+        const expected = `<a foo="bar" baz="foo" bar="baz"><b>1</b><b>2</b></a>`;
+        expect(result).toEqual(expected);
+    });
+
     it('should build tag with only text node', async () => {
         const schema_obj = {
           field: {

src/xmlbuilder/json2xml.js

@@ -115,6 +115,7 @@ Builder.prototype.j2x = function(jObj, level) {
       //repeated nodes
       const arrLen = jObj[key].length;
       let listTagVal = "";
+      let listTagAttr = "";
       for (let j = 0; j < arrLen; j++) {
         const item = jObj[key][j];
         if (typeof item === 'undefined') {
@@ -124,8 +125,12 @@ Builder.prototype.j2x = function(jObj, level) {
           else val += this.indentate(level) + '<' + key + '/' + this.tagEndChar;
           // val += this.indentate(level) + '<' + key + '/' + this.tagEndChar;
         } else if (typeof item === 'object') {
-          if(this.options.oneListGroup ){
-            listTagVal += this.j2x(item, level + 1).val;
+          if(this.options.oneListGroup){
+            const result = this.j2x(item, level + 1);
+            listTagVal += result.val;
+            if (this.options.attributesGroupName && item.hasOwnProperty(this.options.attributesGroupName)) {
+              listTagAttr += result.attrStr
+            }
           }else{
             listTagVal += this.processTextOrObjNode(item, key, level)
           }
@@ -140,7 +145,7 @@ Builder.prototype.j2x = function(jObj, level) {
         }
       }
       if(this.options.oneListGroup){
-        listTagVal = this.buildObjectNode(listTagVal, key, '', level);
+        listTagVal = this.buildObjectNode(listTagVal, key, listTagAttr, level);
       }
       val += listTagVal;
     } else {