gmaps4rails version 2 build method

Question

I installed gmaps4rails for my Rails app, ran the generator, and required the two files like this in my application.js file, along with underscore.js

//= require underscore
//= require gmaps4rails/gmaps4rails.base
//= require gmaps4rails/gmaps4rails.googlemaps

adding, as instructed on github https://github.com/apneadiving/Google-Maps-for-Rails, these dependencies in layout.html.erb

 <script src="//maps.google.com/maps/api/js?v=3.13&amp;sensor=false&amp;libraries=geometry" type="text/javascript"></script>
<script src='//google-maps-utility-library-v3.googlecode.com/svn/tags/markerclustererplus/2.0.14/src/markerclusterer_packed.js' type='text/javascript'></script>

When I tried to create the demo map from the github page with this code, I got an error that the object doesn't have a build method.

Uncaught TypeError: Object # has no method 'build'

handler = Gmaps.build('Google');
handler.buildMap({ provider: {}, internal: {id: 'map'}}, function(){
  markers = handler.addMarkers([
    {
      "lat": 0,
      "lng": 0,
      "picture": {
        "url": "https://addons.cdn.mozilla.net/img/uploads/addon_icons/13/13028-64.png",
        "width":  36,
        "height": 36
      },
      "infowindow": "hello!"
    }
  ]);
  handler.bounds.extendWith(markers);
  handler.fitMapToBounds();
});

Indeed, when I look inside the base file that I require in the manifest file there is no build method for that object.

How does one create a map in the new version for gmaps4rails?

Update the github account for gmaps says to require gmaps this way, but when I do it says'couldn't find file 'gmaps/google'

//= require underscore
//= require gmaps/google

Answer 1

You should use these requires in the assets pipeline

//= require underscore
//= require gmaps/google

Remember that you will need to add underscore.js manually or using a gem in order to use it.

Answer 2

For the error:

couldn't find file 'gmaps/google'

I found I simply had to do a bundle update gmaps4rails, as I had been using a v1.5.6 instead of the more recent 2.0.4.

Answer 3

In your app directory use

rails g gmaps4rails:copy_js

or

rails g gmaps4rails:copy_coffee