geocoding

google_autocomplete.js

var geocoder = new google.maps.Geocoder()

$("#tour_address").autocomplete({
      minLength: 3,
      source: function(input, callback){
        try{
          var results = geocoder.geocode({address: input.term}, function(results, status){
            if(status == google.maps.GeocoderStatus.OK){
              callback(_(results).pluck('formatted_address'))
            } else {
              callback([])
            }
          })
        }catch(e){
          callback([])
        }
      }
    })

migration.rb

     add_column :branches, :latitude, :decimal, :precision => 15, :scale => 10
     add_column :branches, :longitude, :decimal, :precision => 15, :scale => 10