feat: build paths with nested query parameters

Issue router5/router5#19

Author: troch

modules/RouteNode.js

@@ -159,7 +159,15 @@ export default class RouteNode {
     }
 
     buildPathFromSegments(segments, params = {}) {
-        return segments ? segments.map(segment => segment.parser.build(params)).join('') : null
+        let searchPart = segments
+            .filter(s => s.parser.hasQueryParams)
+            .map(s => s.parser.queryParams)
+            .reduce((queryParams, params) => queryParams.concat(params))
+            .filter(p => Object.keys(params).indexOf(p) !== -1)
+            .map(p => p + '=' + params[p])
+            .join('&')
+
+        return segments ? segments.map(segment => segment.parser.build(params, {ignoreSearch: true})).join('') + (searchPart ? '?' + searchPart : '') : null
     }
 
     buildPath(routeName, params = {}) {

package.json

@@ -32,6 +32,6 @@
     "async": "^1.3.0"
   },
   "dependencies": {
-    "path-parser": "~0.2.4"
+    "path-parser": "~0.3.0"
   }
 }

test/main.js

@@ -123,6 +123,21 @@ describe('RouteNode', function () {
         should.not.exists(node.matchPath('/users/view/profile/1'));
     });
 
+    it('should find build a path with nested query parameters', function () {
+        var node = new RouteNode('', '', [
+            new RouteNode('grandParent', '/grand-parent?nickame', [
+                new RouteNode('parent', '/parent?name', [
+                    new RouteNode('child', '/child?age')
+                ])
+            ])
+        ]);
+
+        node.buildPath('grandParent', {nickame: 'gran'}).should.equal('/grand-parent?nickame=gran');
+        node.buildPath('grandParent.parent', {nickame: 'gran', name: 'maman'}).should.equal('/grand-parent/parent?nickame=gran&name=maman');
+        node.buildPath('grandParent.parent', {nickame: 'gran'}).should.equal('/grand-parent/parent?nickame=gran');
+        node.buildPath('grandParent.parent', {name: 'maman'}).should.equal('/grand-parent/parent?name=maman');
+    });
+
     it('should find a nested route by matching a path with a splat', function () {
         var node = getRoutesWithSplat();
         // Building paths