Iron-router nested routes with multiple parameters

Question

I have two models: sites and articles. Each site can have multiple articles. I would like to view the article in the route like this: /siteName/articleFriendlyTitleUrl. At the moment I have helper method to make friendly urls like this:

getFriendlyUrl = function(urlString){
  urlString = urlString.toLowerCase();
  urlString = str.replace(/[^a-z0-9\s]/gi, '').replace(/[_\s]/g, '-');
  return urlString;
}

And my router.js file:

this.route('showArticle', {
  path: '/article/:title'),
  layoutTemplate: 'artLayout',
  data: function(){
  viewData = {
    title: Articles.findOne({title: this.params.title}),
    site:  Sites.findOne({name: this.name})
  }
  return viewData;
});

Anyone have any idea how to implement this? I've also tried achieve this path:

/:siteName/:articleId

but without success - any suggestions?

Answer 1

I recommend to save slug inside article document. App can generate slug from title using Underscore.String.slugify function (https://github.com/epeli/underscore.string) when user add/edit article.

Route with multiple params are valid:

this.route('showArticle', {
  path: '/:siteName/:articleSlug'),
  ...
  data: function(){

     viewData = {
       title: Articles.findOne({slug: this.params.articleSlug}).title,
       site:  Sites.findOne({name: this.params.siteName})
     }
     return viewData;
  }
});

Answer 2

Finally I've solved this problem: I've followed suggestions and added friendlyTitle field to object from Articles collection that contains parsed article title (without special characters).

And this is my route:

this.route('showArticle', {
    path: '/:site/:friendlyTitle',
    layoutTemplate: 'artLayout',
    data: function(){
        return Articles.findOne({friendlyTitle: this.params.friendlyTitle});
    }
});

:site field contains name of the object from Sites collection that has this article assigned (when creating new article I can assing/publish it to/on the specific site).