Nested lists

index.js

@@ -76,6 +76,7 @@ exports.DataTransform = function(data, map){
 				var list = this.getList();
 				var normalized = map.item ? _.map(list, _.bind(this.iterator, this, map.item)) : list;
 				normalized = _.bind(this.operate, this, normalized)();
+				normalized = _.bind(this.nested, this, normalized)();
 				normalized = this.each(normalized);
 			}
 		    return normalized;
@@ -102,6 +103,19 @@ exports.DataTransform = function(data, map){
 
 		},
 
+		nested: function (data) {
+			if (map.nested) {
+				_.each(map.nested, _.bind(function (nestDefinition) {
+					data = _.map(data, _.bind(function (item) {
+						var dataTransform = exports.DataTransform(item, nestDefinition);
+						this.setValue(item, nestDefinition.list, dataTransform.transform());
+						return item;
+					}, this));
+				}, this));
+			}
+			return data;
+		},
+
 		each: function(data){
 			if( map.each ) {
 				_.each(data, map.each);
@@ -138,4 +152,4 @@ exports.DataTransform = function(data, map){
 
 	};
 
-};
+};

test/nestedTester.js

@@ -0,0 +1,111 @@
+var DataTransform = require('../index.js').DataTransform,
+	_ = require("underscore");
+
+let map = {
+	list: 'items',
+	item: {
+		id: 'id',
+		sku: 'sku',
+		zero: 'zero',
+		toReplace: 'sku',
+		errorReplace: 'notFound',
+		simpleArray: ['id', 'sku', 'sku'],
+		complexArray: [{
+			node: 'id'
+		}, {
+			otherNode: 'sku'
+		}, {
+			toReplace: 'sku'
+		}],
+		subObject: {
+			node1: 'id',
+			node2: 'sku',
+			subSubObject: {
+				node1: 'id',
+				node2: 'sku',
+			}
+		},
+		others: 'duplicates',
+		deeplyNested: {
+			list: 'deep.duplicates'
+		},
+		nest: 'nested'
+	},
+	nested: [{
+		list: 'others',
+		item: {
+			newSKU: 'sku',
+			newID: 'id'
+		}
+
+	}, {
+		list: 'deeplyNested.list',
+		item: {
+			newSKU: 'sku',
+			newID: 'id'
+		}
+	}, {
+		list: 'nest',
+		item: {
+			skus: 'skus',
+			newID: 'id'
+		},
+		nested: [{
+			list: 'skus',
+			item: {
+				alternateSKU: 'subSKU',
+			}
+		}]
+	},
+	{
+		list: 'others',
+		item: {
+			newSKU: 'sku',
+			newID: 'id'
+		}
+
+	}]
+};
+
+let object = {
+	items: [{
+		id: 'books',
+		zero: 0,
+		sku: '10234-12312',
+		duplicates: [{
+			id: 'otherBook',
+			sku: '10234-12313'
+		}, {
+			id: 'thirdBook',
+			sku: '10234-12314'
+		}],
+		deep: {
+			duplicates: [{
+				id: 'otherBook',
+				sku: '10234-12313'
+			}, {
+				id: 'thirdBook',
+				sku: '10234-12314'
+			}]
+		},
+		nested: [{
+			id: 'otherBook',
+			skus: [{
+				subSKU: '1023'
+			}]
+		}, {
+			id: 'thirdBook',
+			skus: [{
+				subSKU: '1024'
+			},
+			{
+				subSKU: '1023'
+			}]
+		}]
+	}]
+}
+
+let dataTransform = new DataTransform(object, map);
+let result = dataTransform.transform();
+
+console.log(JSON.stringify(result, null, 4));