Havag Info

README.md

Havag Info

Preview

Description

Havag Info is a Dashing widget which displays information on trams and buses in Halle (Saale) / Germany operated by Havag.

Dependencies

httpclient

Add the following gem to the Gemfile:

gem 'httpclient'

and run bundle install.

Havag ruby library

ruby_on_havag

Clone repo (or download RAW from project page):

git clone https://github.com/Terminal21/ruby_on_havag.git

Copy to lib directory

cp ruby_on_havag/havag.rb PATH_TO_DASHBOARD/lib

Be careful, lib/havag.rb and job/havag.rb (see below) are different files! Do not mix them!

Usage

Copy havag.rb to the '/jobs' directory. Create a folder called havag under /widgets. Copy havag.coffee, havag.html and havag.scss into /widgets/havag. Copy havag.png into /assets/images/.

Add the following code snippet to your dashboard .erb file:

<li data-row="1" data-col="1" data-sizex="2" data-sizey="2">
   <div data-id="havag" data-view="Havag" data-title="Havag" style="background-color:#12B0C5;"> ></div>
</li>

Settings

Specify the tram station you want to display in the widget by setting the 'station' variable in job/havag.rb

You can figure out what stations are available by executing the library as a ruby program ruby lib/havag.rb

havag.coffee

class Dashing.Havag extends Dashing.Widget
  ready: ->

havag.html

<h1 class="train title" data-bind="station"></h1>
<table class="trains">
  <tr>
    <th>Line</th>
    <th>Destination</th>
    <th>Departure</th>
    <th>Delay</th>
  </tr>
  <tr data-id="next_trains" data-foreach-item="next_trains" class="next_trains">
    <td class="line" data-bind="item.line"></td>
    <td class="destination" data-bind="item.destination"></td>
    <td class="departure_scheduled" data-bind="item.departure_scheduled"></td>
    <td class="delay" data-bind="item.delay"></td>
  </tr>
</table>

havag.png

havag.rb

# encoding: utf-8

station = "Talstraße"
havag = Havag.new

SCHEDULER.every '20s', :first_in => 0 do |job|
    next_trains = havag.getNextTrains(station)
    next_trains.each do |train|
        delay = (train[:departure_real].to_time - train[:departure_scheduled].to_time).to_i
        train[:delay] = Time.at(delay).strftime("%M:%S")
        train[:departure_scheduled] = train[:departure_scheduled].strftime("%H:%M")
    end
    send_event('havag', {station: station, next_trains: next_trains[0..9]})
end

havag.scss

h1.train {
  background: url("/assets/havag.png") left center no-repeat;
  background-size: auto 100%;
  margin-left: 10px;
}

.trains td, .trains th {
  padding: 10px;
}

.next_trains {
  border-top: 1px solid #fff;
}

Hello!
Is it possible to adapt this for the VBN (Verkehrsverbund Bremen/Niedersachsen)? If yes, how ?
Thanks 👍