CODEWITHSUNDEEP
meteor
ndemoreau
ndemoreau

Reputation: 3869

meteor how to define class level methods?

I have a collection called "Articles". Each article has a category. I would like to have a global variable being an array with each distinct category value in my Articles collection.

I tried to do it this way:

/models/article.coffee:

@Articles = new Meteor.Collection "articles"

Articles.categories = ->
  Meteor.call "articleCategories", (e, r) ->
    unless e
      return r

/server/article_server.coffee:

Meteor.methods
  articleCategories: ->
    categories = _.uniq(Articles.find({}, {sort: {category: 1}, fields:
        {category: true}}).fetch().map (x) ->
        x.category
    , true)
    return categories

This doesn't work. The result is "undefined" when I call Articles.categories() from the console.

What am I doing wrong?

EDIT:

I want to do this because I want my article categories to be available everywhere in the website.

As Articles collection will not be published on every pages, I tought, I could just generate an array server side and pass it over to the client.

But maybe it's not a good idea...

Upvotes: 2

Views: 143

Answers (2)

saimeunt
saimeunt

Reputation: 22696

A Meteor.method will always return undefined on the client (unless a simulation/stub exists and it's called within another parent method) so this behavior is expected.

I'm not sure why you'd need a Meteor.method in this particular use case though, can't you just copy your method code inside your class method ?

EDIT :

To accomplish what you want to do, I'd suggest changing your model to create a Categories collection filled with every possible categories and just publish the entire content to the client.

Then just use a foreign key in your Articles collection.

An added benefit will be that your categories access client side will be reactive, contrary to using a Meteor.method.

Whether it's Telescope or even Wordpress I think this schema is very popular.

Upvotes: 1

Carlos Rodrigues
Carlos Rodrigues

Reputation: 160

Take a look at this package:

https://github.com/dburles/meteor-collection-helpers

And add something like this (I wrote in javascript) in your model:

Articles.helpers({
    categories: function(){
        return _.uniq(
           _.pluck(Articles.find({}, {sort: {category: 1}, fields:
               {category: true}}).fetch(), 'category'),
           true
        );
    }
});

Upvotes: 0

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