Branched by Reenhanced for Rails 3.1 compatibility
Easily show multiple, overlapping events across calendar days and rows.
See http://dev.elevationblog.com/2009/7/23/event-calendar-rails-plugin for a screenshot.
After install, the "calendar" method will be available within your views.
To customize the look, modify the included stylesheet and/or change the default options.
script/plugin install git://github.com/excid3/event_calendar.git
To generate the necessary static files AND the example below:
script/generate event_calendar
Add this to your Gemfile:
gem 'event-calendar', :require => 'event_calendar', :git => 'git://github.com/excid3/event_calendar.git'
Or as a plugin:
rails plugin install git://github.com/excid3/event_calendar.git
To generate the necessary static files AND the example below:
rails generate event_calendar
Add to your Gemfile":
gem 'event-calendar', :require => 'event_calendar', :git => 'git://github.com/excid3/event_calendar.git'
Run:
bundle install
Add to your application.js asset:
//= require event_calendar
Add to your application.css asset:
*= require event_calendar
Rails 2 script/generate event_calendar --help
Rails 3 rails generate event_calendar --help
Options --static-only: Only generate the stylesheet and javascript --use-jquery: Generate jQuery javascript --use-mootools: Generate MooTools javascript --use-all-day: Include an 'all_day' field on events, and display appropriately
You can change the default event model name (Event) and controller/view name (Calendar) by passing in two name arguments:
rails generate event_calendar EventModel ControllerName
Example:
rails generate event_calendar Event Calendar
Make sure to include the stylesheet and javascript in your layout/view.
public/stylesheets/event_calendar.css
public/javascripts/event_calendar.js
Unless the --static-only option is given, the following will be generated. Names will differ if name arguments were passed to the generator.
db/migrate/XXXX_create_events.rb
class CreateEvents < ActiveRecord::Migration
def self.up
create_table :events do |t|
t.string :name
t.datetime :start_at
t.datetime :end_at
t.timestamps
end
end
def self.down
drop_table :events
end
end
At minimum we need to have start_at and end_at fields. Altnernatively, you can configure the columns to be used by passing options to has_event_calendar.
If the '--use-all-day' option is passed to the generator, it will also add a boolean all_day field. Set :start_at to be any time on the day of the event and set :all_day to true.
An event can also have a color field (any string which is a valid CSS color) which determines the color of the event. Or simply override the default virtual attribute on the model. For example, if events are associated to a calendar model, then the events can get their color from the calendar.
app/models/event.rb
class Event < ActiveRecord::Base
has_event_calendar
# To specify the columns to use call it like this:
#
# has_event_calendar :start_at_field => 'custom_start_at', :end_at_field => 'custom_end_at'
#
end
config/routes.rb
Rails 2:
map.calendar '/calendar/:year/:month', :controller => 'calendar', :action => 'index', :requirements => {:year => /\d{4}/, :month => /\d{1,2}/}, :year => nil, :month => nil
Rails 3:
match '/calendar(/:year(/:month))' => 'calendar#index', :as => :calendar, :constraints => {:year => /\d{4}/, :month => /\d{1,2}/}
app/controllers/calendar_controller.rb
class CalendarController < ApplicationController
def index
@month = (params[:month] || Time.zone.now.month).to_i
@year = (params[:year] || Time.zone.now.year).to_i
@shown_month = Date.civil(@year, @month)
@event_strips = Event.event_strips_for_month(@shown_month)
# To restrict what events are included in the result you can pass additional find options like this:
#
# @event_strips = Event.event_strips_for_month(@shown_month, :include => :some_relation, :conditions => 'some_relations.some_column = true')
#
end
end
app/helpers/calendar_helper.rb
Some helper methods are created, but you could put this in the view. The key is our calendar method, which takes some options.
module CalendarHelper
def month_link(month_date)
link_to(I18n.localize(month_date, :format => "%B"), {:month => month_date.month, :year => month_date.year})
end
# custom options for this calendar
def event_calendar_options
{
:year => @year,
:month => @month,
:event_strips => @event_strips,
:month_name_text => I18n.localize(@shown_month, :format => "%B %Y"),
:previous_month_text => "<< " + month_link(@shown_month.prev_month),
:next_month_text => month_link(@shown_month.next_month) + " >>"
}
end
def event_calendar
calendar event_calendar_options do |args|
event = args[:event]
%(<a href="/events/#{event.id}" title="#{h(event.name)}">#{h(event.name)}</a>)
end
end
end
Notice you can pass in a block to the calendar method. In this example I'm passing a link to the event details, and displaying the event's name. If you are using the MooTools javascript, a Tip will be created with the content of the link's title attribute for displaying additional information.
app/views/calendar/index.html.erb
Then in calendar view, simply:
<%= event_calendar %>
In Rails 3, use raw(event_calendar)
The default options for the calendar are:
defaults = {
:year => Time.zone.now.year,
:month => Time.zone.now.month,
:abbrev => true,
:first_day_of_week => 0, # See note below when setting this
:show_today => true,
:show_header => true,
:month_name_text => Time.zone.now.strftime("%B %Y"),
:previous_month_text => nil,
:next_month_text => nil,
:event_strips => [],
# it would be nice to have these in the CSS file
# but they are needed to perform height calculations
:width => nil,
:height => 500,
:day_names_height => 18,
:day_nums_height => 18,
:event_height => 18,
:event_margin => 1,
:event_padding_top => 1,
:use_all_day => false,
:use_javascript => true,
:link_to_day_action => false
}
You can override any of these by passing your options to the calendar method. In the above example, update the event_calendar_options helper method.
-
See the notes in the plugin's calendar_helper.rb for more info.
-
width: Optional, if none is given it will stretch to the containing element.
-
height: Defaults to 500px. This is the approx minimum total height of the calendar. It could be greater if a calendar row(s) need to stretch to fit additional events.
-
use_all_day: If set to true, will check for an 'all_day' boolean field when displaying an event. If it is an all day event, or the event is multiple days, then it will display as usual. Otherwise it will display without a background color bar.
Helper/View:
:use_all_day => true
If using this option, you probably want to also show times for non-all-day events:
calendar event_calendar_options do |args|
event, day = args[:event], args[:day]
html = %(<a href="/events/#{event.id}" title="#{h(event.name)}">)
html << display_event_time(event, day)
html << %(#{h(event.name)}</a>)
html
end
-
use_javascript: If set to false, it won't add custom HTML data attributes that are needed for javascript highlighting. (Note, custom attributes will be valid in HTML 5.) The actual javascript is unobtrusive and found in the event_calendar.js file.
-
link_to_day_action: Will make the calendar's day numbers links to the given Rails action. Note, you'll probably want a corresponding route, controller action, and view to go with this action. Example:
Helper/View calendar option:
:link_to_day_action => "day"
Route (the controller is the same as your other calendar route):
map.calendar_day "/calendar/:year/:month/:day", :controller => "calendar", :action => "day"
- If you want to change the first day of the week from the default of Sunday (0), then set the new value in an instance variable and pass it to event_strips_for_month (in the controller), and to the event calendar options (in the helper/view).
Controller:
@first_day_of_week = 1
@event_strips = Event.event_strips_for_month(@shown_month, @first_day_of_week)
Helper/View calendar options:
:first_day_of_week => @first_day_of_week
-
If you need access to the events, not just the event strips, then instead of calling event_strips_for_month call these 3 methods:
start_d, end_d = Event.get_start_and_end_dates(@shown_month) # optionally pass in @first_day_of_week @events = Event.events_for_date_range(start_d, end_d) @event_strips = Event.create_event_strips(start_d, end_d, @events)
-
The event select color is set in the event_calendar.js file.
Mongoid is supported out of the box with no additional lines of code in the model. Use the has_event_calendar method as you do with ActiveRecord.
To localize month and day names, add the following to your localization file(s) in config/locales:
date -> formats, day_names, abbr_day_names, month_names, abbr_month_names
For example, in es.yml:
es:
date:
formats:
default: "%e/%m/%Y"
day_names: [Domingo, Lunes, Martes, Miércoles, Jueves, Viernes, Sábado]
abbr_day_names: [Dom, Lun, Mar, Mie, Jue, Vie, Sab]
# Don't forget the nil at the beginning; there's no such thing as a 0th month
month_names: [~, Enero, Febrero, Marzo, Abril, Mayo, Junio, Julio, Agosto, Septiembre, Octubre, Noviembre, Diciembre]
abbr_month_names: [~, Ene, Feb, Mar, Abr, May, Jun, Jul, Ago, Sep, Oct, Nov, Dic]
- Jeff Schuil
- See commit history for list of additional contributors.
- Thanks to those who have added features, fixed bugs, and/or reported issues.
- Though EventCalendar has diverged greatly, it was originally based off of James Urquhart's http://www.cuppadev.co.uk/webdev/making-a-real-calendar-in-rails/
- This in turn started as Geoffrey Grosenbach's CalendarHelper.
Copyright (c) 2009 Elevation, released under the MIT license