event time fuckaduck

_form.html.haml

#event
  = error_messages_for @event
  .row
    = form_for @event, :class => 'form-vertical' do |form|
      .span8
        .row
          .span4
            = form.label 'Date'
            = form.date_select :start_date, {}, :class=>"span1"
          .span4
            = form.label 'Until (optional)'
            = form.date_select :end_date, {:include_blank => true}, :class=>"span1"


        .row
          .span4
            = form.label 'Time'
            = form.time_select :start_time, {}, :class=>"span1"
          .span4
            = form.label 'Until (optional)'
            = form.time_select :end_time, {:include_blank => true}, :class=>"span1"


        = form.label :time_zone
        = time_zone_select 'essentials_event', :time_zone, nil, {:default=>@event.time_zone}, :class=>"span4"

 
        %div
          = button_tag t('events.submit'), :class => 'btn', :style => 'margin-top:20px'

event.rb

class Essentials::Event
  include Mongoid::Document
  include Mongoid::Timestamps

  field :start_date, :type => Date
  field :end_date,   :type => Date
  field :start_time, :type => Time
  field :end_time,   :type => Time

  field :time_zone,  :type => String

  validates_presence_of :title, :body, :summary, :start_date, :start_time, :time_zone
  validate :date_range
  validate :time_range

  def get_date_range
    if start_date && end_date && (start_date != end_date)
      "#{start_date.strftime('%m/%d/%Y')} - #{end_date.strftime('%m/%d/%Y')}"
    else
      "#{start_date.strftime('%m/%d/%Y')}"
    end
  end

  def get_time_range
    start_with_zone = ActiveSupport::TimeWithZone.new(start_time.getutc, ActiveSupport::TimeZone.new(time_zone))

    if start_time && end_time
      end_with_zone = ActiveSupport::TimeWithZone.new(end_time.getutc, ActiveSupport::TimeZone.new(time_zone))
      "#{start_with_zone.strftime('%H:%M %Z')} - #{end_with_zone.strftime('%H:%M %Z')}"
    else
      "#{start_with_zone.strftime('%H:%M %Z')}"
    end
  end
  
  private

  def time_range
    # Get rid of day and year!
    self.start_time = Time.parse("#{self.start_time.hour}:#{self.start_time.min}") if self.start_time
    self.end_time = Time.parse("#{self.end_time.hour}:#{self.end_time.min}") if self.end_time

    if self.end_time
      errors.add(:end_time, I18n.t('errors.days.time.invalid_range', {:start_time => start_time})) if (start_time && end_time && (start_date == end_date) && (end_time <= start_time))
    end
  end
end

rails c

ree-1.8.7-2011.03 :001 > e = Essentials::Event.create( {:start_date => "Thu Jul 19 00:00:00 UTC 2012", :group_name => "Boston Sites Program", :group => "4f84bec18d5362c8ba000001", :location => "borkbork", :end_time => nil, :created_at => "Thu Jul 19 18:28:36 UTC 2012", :body => "                asdfasdf      ", :title => "bork", :updated_at => "Thu Jul 19 18:39:20 UTC 2012", :user_type => "grantee", :highlighted => false, :time_zone => "Mountain Time (US & Canada)", :program => nil, :summary => "asdfasdf", :start_time => "Thu Jul 19 19:00:00 UTC 2012", :active => false} )
 => #<Essentials::Event _id: 5008594bc97d7d1561000001, start_date: Thu Jul 19 00:00:00 UTC 2012, group_name: "Boston Sites Program", group: "4f84bec18d5362c8ba000001", location: "borkbork", end_time: nil, created_at: Thu Jul 19 18:28:36 UTC 2012, body: "                asdfasdf      ", title: "bork", updated_at: Thu Jul 19 18:39:20 UTC 2012, user_type: "administrator", _type: "Essentials::Event", highlighted: false, time_zone: "Mountain Time (US & Canada)", program: nil, summary: "asdfasdf", end_date: nil, start_time: Thu Jul 19 19:00:00 UTC 2012, active: false, grantee_id: nil> 
ree-1.8.7-2011.03 :002 > e.start_time.utc
 => Thu Jul 19 19:00:00 UTC 2012 
ree-1.8.7-2011.03 :003 > e.time_zone
 => "Mountain Time (US & Canada)" 
ree-1.8.7-2011.03 :004 > e.get_time_range
 => "13:00 MDT" 
ree-1.8.7-2011.03 :005 > e.start_time
 => Thu Jul 19 12:00:00 -0700 2012 

show.html.haml

#event
  .row
    .span8
      #event
        .time
          %b Event Date:
          = @event.get_date_range
              
          %b Event Time:
          = @event.get_time_range