GCal4Ruby

Introduction

GCal4Ruby is a full featured wrapper for the google calendar API. GCal4Ruby implements all of the functionality available through the Google Calnedar API, including permissions, attendees, reminders and event recurrence.

Author and Contact Information

GCal4Ruby was created and is maintained by Mike Reich and is licenses under the LGPL v3. Feel free to use and update, but be sure to contribute your code back to the project and attribute as required by the license. You can find the text of the LGPL here: www.gnu.org/licenses/lgpl.html.

Website

cookingandcoding.com/gcal4ruby/

Description

GCal4Ruby has three major components: the service, calendar and event objects. Each service has many calendars, which in turn have many events. Each service is the representation of a google account, and thus must be successfully authenticated using valid Google Calendar account credentials.

Examples

Below are some common usage examples. For more examples, check the documentation.

Service

# Authenticate with the AuthSub service (quickest, dirtiest)

service = Service.new
service.authenticate({:username => "user@gmail.com", :password => "password"})

# Authenticate using OAuth (more setup, easier for an app) service = Service.new(=> :OAuthService) service.authenticate(my_oauth_accesstoken)

# Get Calendar List

calendars = service.calendars

Calendar

All usages assume a successfully authenticated Service.

1. Create a new Calendar

   cal = Calendar.new(service)
   

2. Find a calendar by ID

   cal = Calendar.find(service, {:id => cal_id})
   

3. Get all calendar events

   cal = Calendar.find(service, {:id => cal_id})
   events = cal.events
   

4. Find an existing calendar by title

   cal = Calendar.find(service, {:title => "New Calendar"})
   

5. Find all calendars containing a search term

   cal = Calendar.find(service, "Soccer Team")
   

Event

All usages assume a successfully authenticated Service and valid Calendar.

1. Create a new Event

   event = Event.new(service, {:calendar => cal, :title => "Soccer Game", :start => Time.parse("12-06-2009 at 12:30 PM"), :end => Time.parse("12-06-2009 at 1:30 PM"), :where => "Merry Playfields"})
   event.save
   

2. Find an existing Event by title

   event = Event.find(service, {:title => "Soccer Game"})
   

3. Find an existing Event by ID

   event = Event.find(service, {:id => event.id})
   

4. Find all events containing the search term

   event = Event.find(service, "Soccer Game")
   

5. Find all events on a calendar containing the search term

   event = Event.find(service, "Soccer Game", {:calendar => cal.id})
   

6. Find events within a date range

   event = Event.find(service, "Soccer Game", {'start-min' => Time.parse("01/01/2010").utc.xmlschema, 'start-max' => Time.parse("06/01/2010").utc.xmlschema})
   

7. Create a recurring event for every saturday

   event = Event.new(service)
   event.title = "Baseball Game"
   event.calendar = cal
   event.where = "Municipal Stadium"
   event.recurrence = Recurrence.new
   event.recurrence.start_time = Time.parse("06/20/2009 at 4:30 PM")
   event.recurrence.end_time = Time.parse("06/20/2009 at 6:30 PM")
   event.recurrence.frequency = {"weekly" => ["SA"]}
   event.save
   

8. Create an event with a 15 minute email reminder

   event = Event.new(service)
   event.calendar = cal
   event.title = "Dinner with Kate"
   event.start_time = Time.parse("06/20/2009 at 5 pm")
   event.end_time = Time.parse("06/20/2009 at 8 pm")
   event.where = "Luigi's"
   event.reminder = {:minutes => 15, :method => 'email'}
   event.save
   

9. Create an event with attendees

   event = Event.new(service)
   event.calendar = cal
   event.title = "Dinner with Kate"
   event.start_time = Time.parse("06/20/2009 at 5 pm")
   event.end_time = Time.parse("06/20/2009 at 8 pm")
   event.attendees => {:name => "Kate", :email => "kate@gmail.com"}
   event.save