Event Map Extension for Radiant

This extension adds mapping to the event_calendar. It will geocode your events automatically based on the address of the venue, or you can supply a postal code, UK postcode or grid reference for greater precision.

Events can be displayed on a google map and you can create links to bing or google maps that display the location of each event.

Installation

As of version 1.5.0 this extension is only compatible with radiant 1.0 and should be installed as a gem:

gem install radiant-event_map-extension

and then in your radiant application's Gemfile:

gem 'radiant-event_map-extension', '~> 1.4.0'

Requirements

These will be installed automatically when you install the gem:

event_calendar extension version 1.5 or greater
layouts or share_layouts extension
geokit gem

Configuration

There is one required config setting if you're using the full-page map controller:

event_map.layout is the name of the layout used by the controller

If you're only using the events:googlemap radius tag then this isn't required.

Basic Usage

Linking to maps

We override the url method of EventVenue to return a map link if no other url is defined. The format of those links is determined by the link template stored in the config setting event_map.link_format. The markers :lat, :lng and :title will be replaced with the the correct value for each event venue.

There are also two shortcuts:

'google' is the default and equivalent to http://maps.google.com/maps?q=:lat+:lng+(:title) and will drop a pin on a google map.
'bing' is equivalent to http://www.bing.com/maps/?v=2&cp=:lat~:lng&rtp=~pos.:lat_:lng_:title&lvl=15&sty=s&eo=0, which will display a 1:25000 ordnance survey map (if you're in the UK) with a destination flag at your chosen point.

Placing a map on one of your pages

For simple uses this radius tag might suffice:

<r:events:googlemap [calendar="slug"] />

For more searchability you need to use the full-page map controller.

Displaying a map page

Create a layout that includes a map_canvas div and these page parts:

map_js is required. It brings in the javascripts (and can be used in the header or at the end of the page as you prefer)
title is the page title and can also be shown with r:title
faceting gives the option to remove any date filters that have been applied. If you add the taggable_events extension it gets more useful.

Here's a starting point:

<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
  <head>
    <title><r:title /></title>
    <r:content part="map_js" />
  </head>
  <body>
   <h1 id="pagetitle"><r:title /></h1>
        <r:content part="faceting" />
        <div id="map_canvas" style="width: 600px; height 400px;"></div>
  </body>
</html>

Make sure that Radiant::Config['event_map.layout'] matches exactly the name of this layout.

custom markers

To display a different marker for (events in) each calendar, set Radiant::Config['event_map.use_calendar_icons?'] to true and then create shadow and marker files at paths like these:

/images/map_icons/slug.png
/images/map_icons/slug_shadow.png

where 'slug' is the slug of each calendar. Basic pin and shadow images are included for you to modify and name appropriately.

If a venue has several events then the first will event will set the marker.

NB. we're not doing anything fancy here with offsets or masks: if you need that kind of detail then a bit more javascript is required.

javascript compatibility

The map javascript is generated by the EventVenuesController using app/views/event_venues/index.js.erb. You should find that it automatically populates the map with or without jquery present.

JSON interface

If you don't want to use the included scripts, you can skip that whole mechanism and work with the event data instead. EventVenuesController provides a simple JSON interface. Usually it's at /map and looks for addresses like this:

    /map                                everything
    /map/2010                           events in 2010
    /map/2010/12/                       events in December 2010
    /map/2010/12/12                     events on 12 December 2010

If you're using taggable_events then we also inherit the tag-faceting interface here.

Bugs and features

Github issues please, or for little things an email or github message is fine.

Author & Copyright

Released under the same terms as Radiant and/or Rails.