docs: update populate notes

README.md

@@ -104,10 +104,10 @@ parser.parse('filter={"$or":[{"key1":"value1"},{"key2":"value2"}]}&name=Telstra'
 #### Populate operators
 
 - Useful to populate sub-document(s) in query. Works with `MongooseJS`. Please see [Mongoose Populate](http://mongoosejs.com/docs/populate.html) for more details
-- Supports deep populate with delimiter ":" 
+- Supports deep populate with delimiter ":" to indicate deep populate
   - Below example & `test-populate.spec.ts` for more details
   - See [Mongoose Docs](https://mongoosejs.com/docs/populate.html#deep-populate)
-- Allows to populate with only selected fields
+- Allows to populate with only selected fields with "." to indicate field selection
 - Default operator key is `populate`
 
 ```js
@@ -117,7 +117,8 @@ parser.parse('populate=createdBy:friends.name,createdBy.name,likedBy.name');
 //     path: 'createdBy',
 //     select: 'name',
 //     populate: {
-//       path: 'name',
+//       path: 'friends',
+//       select: 'name',
 //     }
 //   }, {
 //     path: 'likedBy',

package.json

@@ -1,6 +1,6 @@
 {
   "name": "mongoose-query-parser",
-  "version": "1.3.0",
+  "version": "1.3.1",
   "description": "Convert url query string to MongooseJs friendly query object including advanced filtering, sorting, population, string template, type casting and many more...",
   "main": "./lib/index.js",
   "types": "./lib/index.d.ts",

src/test.spec.ts

@@ -113,15 +113,15 @@ class Tester {
   @test('should parse deep populate')
   deepPopulateParse() {
     const parser = new MongooseQueryParser();
-    const qry = '_id=1&populate=p1,p2:p3.p4,p2:p3.p5,p6:p7';
+    const qry = '_id=1&populate=p1,p2:p3.p4,p2:p3:p5,p6:p7';
     const parsed = parser.parse(qry);
     assert.isNotEmpty(parsed.populate);
     assert.isTrue(parsed.populate.length === 3);
     for (const p of parsed.populate) {
       if (p.path === 'p2') {
         assert.isTrue(p.populate.path === 'p3');
         assert.isTrue(p.populate.select.includes('p4'));
-        assert.isTrue(p.populate.select.includes('p5'));
+        assert.isTrue(p.populate.populate.path === 'p5');
       }
       if (p.path === 'p6') {
         assert.isTrue(p.populate.path === 'p7');