Class: CalEvent

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
app/models/cal_event.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.create_or_update(attributes = {}) ⇒ Object

Raises:

  • (ActiveRecord::RecordInvalid) 


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# File 'app/models/cal_event.rb', line 19

def self.create_or_update(attributes = {})
  new_event = CalEvent.new(attributes)
  raise ActiveRecord::RecordInvalid unless new_event.valid?

  found = CalEvent.find_by_system_uid(new_event.system_uid)

  if found 
    if found.system_updated_at < new_event.system_updated_at
      found.update_attributes(
        name:              new_event.name,
        description:       new_event.description,
        system_updated_at: new_event.system_updated_at
      )
    end
    found
  else
    new_event.save
    new_event
  end
end

.import_from_ical(ical) ⇒ Object 



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# File 'app/models/cal_event.rb', line 40

def self.import_from_ical(ical)
  ids = []
  cals = Icalendar.parse(ical)
  cals.each do |cal|
    cal.events.each do |event|
      db_event = CalEvent.create_or_update(
        name:              event.summary.to_s,
        description:       event.description.to_s,
        system_uid:        event.uid.to_s,
        system_updated_at: event.last_modified.to_datetime,
      )
      if event.rdate.empty?
        db_event.rdate = [
          [event.dtstart.to_datetime, event.dtend.to_datetime]
        ].to_json
      else
        db_event.rdate = event.rdate[0].to_json
      end
      db_event.save
      ids << db_event.id
    end
  end 
  events = CalEvent.where(id: ids)
  events.months_affected.each do |year, month|
    data = events.for_month(year, month).to_event_data(year, month)
    CalMonth.create_or_update(
      year: year, month: month, event_data: data
    )
  end
  events
end

.months_affected ⇒ Object 



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# File 'app/models/cal_event.rb', line 15

def self.months_affected
  all.flat_map(&:months_affected).uniq.sort
end

.to_event_data(year, month) ⇒ Object 



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# File 'app/models/cal_event.rb', line 72

def self.to_event_data(year, month)
  all.each_with_object(Hash.new {|h,k| h[k] = []}) { |event, data| 
    event.to_event_data[[year, month]].each do |day, event_data|
      data[day] << event_data
    end 
  } 
end

Instance Method Details

#datetimes ⇒ Object

array of array [[start_datetime, end_datetime],…]



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# File 'app/models/cal_event.rb', line 96

def datetimes
  data = JSON.parse(rdate)
  data.map { |pair| pair.map { |str| DateTime.parse(str) } }
end

#months_affected ⇒ Object 



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# File 'app/models/cal_event.rb', line 101

def months_affected
  datetimes.flatten.map { |date| [date.year, date.month] }.uniq.sort
end

#to_event_data ⇒ Object 



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# File 'app/models/cal_event.rb', line 80

def to_event_data
  data = Hash.new { |h,k| h[k] = {} }
  datetimes.each {|start_datetime, end_datetime|
    (start_datetime..end_datetime).each do |day|
      data[[day.year, day.month]][day.day] = { 
        id:             id, 
        name:           name, 
        start_datetime: start_datetime, 
        end_datetime:   end_datetime
      }
    end
  }
  data
end