Class: ActsAsEventOwner::EventSpecification

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
lib/acts_as_event_owner/event_specification.rb

Constant Summary collapse

ON_THE = 
{ :first => '1', :second => '2', :third => '3', :fourth => '4', :last => '-1' }
BYDAYS = 
{ :day => 'SU,MO,TU,WE,TH,FR,SA', :wkday => 'MO,TU,WE,TH,FR', :wkend => 'SU,SA'}

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#generate ⇒ Object

Returns the value of attribute generate.



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# File 'lib/acts_as_event_owner/event_specification.rb', line 25

def generate
  @generate
end

Class Method Details

.generate_events(options = {}) ⇒ Object 



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# File 'lib/acts_as_event_owner/event_specification.rb', line 143

def self.generate_events options={}
  self.all(:conditions => "until IS NULL OR until >= '#{Time.zone.now.to_s(:db)}'").each {|spec|
    spec.generate_events(options)
  }
end

Instance Method Details

#generate_events(options = {}) ⇒ Object

Raises:



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# File 'lib/acts_as_event_owner/event_specification.rb', line 96

def generate_events options={}
  raise ActsAsEventOwner::Exception.new("Invalid Event Specification") if !valid?

  opts = options.clone
  opts[:from] ||= Time.now
  opts[:to] ||= (opts[:from] + 30.days) if opts[:from]
  opts[:from] -= 1.second
  opts[:to] -= 1.second
  opts[:from] = opts[:to] = nil if opts[:count]
  attribute_overrides = opts[:attributes] || {}

  # puts "generate #{self.attributes.inspect} from #{opts[:from]} to #{opts[:to]} with #{attribute_overrides.inspect}"

  start_at = self.start_at
  end_at = self.end_at
  cal = RiCal.Calendar do |cal|
    cal.event do |event|
      event.description self.description
      event.dtstart(start_at.in_time_zone) if start_at
      event.dtend(end_at.in_time_zone) if end_at
      event.rrule = self.to_rrule if self.to_rrule
    end
  end
  event = cal.events.first
  # puts "event is #{event.inspect}"
  occurrences = event.occurrences(:starting => opts[:from], :before => opts[:to], :count => opts[:count])
  # puts "got #{occurrences.length} occurrences"
  occurrences.collect do |occurrence|
    @@OCCURRENCE_COLUMNS ||= (EventOccurrence.columns.collect(&:name) - EXCLUDED_COLUMNS)
    @@SPECIFICATION_COLUMNS ||= (EventSpecification.columns.collect(&:name) - EXCLUDED_COLUMNS)
    additional_columns = (@@SPECIFICATION_COLUMNS).inject({}) do |additional, column|
      additional[column] = self.attributes[column] if @@OCCURRENCE_COLUMNS.include?(column)
      additional
    end

    # puts "*********** #{occurrence.start_time} : #{occurrence.start_time.zone}"
    # puts "*********** #{Time.zone.at(occurrence.start_time.to_i)}"

    hash = {
      :owner_id => self.owner_id, :owner_type => self.owner_type, :event_specification_id => self.id,
      :description => occurrence.description, :start_at => occurrence.start_time.utc,
      :end_at => occurrence.finish_time.utc}.stringify_keys.merge(additional_columns).merge(attribute_overrides.stringify_keys)

    EventOccurrence.find_or_create_by_owner_id_and_owner_type_and_event_specification_id_and_start_at_and_end_at(hash)
  end
end

#repeat ⇒ Object 



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# File 'lib/acts_as_event_owner/event_specification.rb', line 149

def repeat
  self.attributes["repeat"].try(:to_sym)
end

#to_rrule ⇒ Object 



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# File 'lib/acts_as_event_owner/event_specification.rb', line 60

def to_rrule
  return nil if !self.valid? || self.repeat.nil?

  components = []
  repeat = self.repeat
  frequency = self.frequency

  case self.repeat
    when :by_hour
      repeat = "DAILY"
      components << "BYHOUR=#{self.target.join(',')}"
      frequency = nil

    when :daily

    when :weekly
      components << "BYDAY=#{self.on.join(',').upcase}" if self.on

    when :monthly
      if self.on_the
        components << "BYSETPOS=#{ON_THE[self.on_the]}"
        components << "BYDAY=#{byday}"
      end
      components << "BYMONTHDAY=#{self.on.join(',').upcase}" if self.on

    when :yearly
      components << "BYMONTH=#{self.on.join(',').upcase}" if self.on
      components << "BYSETPOS=#{ON_THE[self.on_the]};BYDAY=#{byday}" if self.on_the
  end

  components.unshift "INTERVAL=#{frequency}" if frequency
  components.unshift "FREQ=#{repeat.to_s.upcase}"
  components << "UNTIL=#{self.until.strftime("%Y%m%dT%H%M%S")}" if self.until
  components.join(';')
end

#validate_recurrence_rules ⇒ Object 



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# File 'lib/acts_as_event_owner/event_specification.rb', line 28

def validate_recurrence_rules
  case self.repeat
    when :by_hour
      errors.add(:target, "must be an array") if !self.target.present? || !self.target.is_a?(Array)
      [:on, :on_the].each {|v| errors.add(v, :present) if self.send(v)}

    when :daily
      [:on, :on_the, :target].each {|v| errors.add(v, :present) if self.send(v)}

    when :weekly
      errors.add(:on, "must be an array") if self.on.present? && !self.on.is_a?(Array)
      [:on_the, :target].each {|v| errors.add(v, :present) if self.send(v)}

    when :monthly
      if self.on_the
        errors.add(:target, "must be an array, :day, :wkday, or :wkend") if self.target.nil? || !(self.target.is_a?(Array) || BYDAYS.keys.include?(self.target))
        errors.add(:on, :present) if self.on.present?
      elsif self.on
        errors.add(:on, "must be an array") if !self.on.is_a?(Array)
        [:on_the, :target].each {|v| errors.add(v, :present) if self.send(v)}
      end

    when :yearly
      if self.on_the
        errors.add(:on, "must be an array") if !self.on.present? || !self.on.is_a?(Array)
        errors.add(:target, "must be an array, :day, :wkday, or :wkend") if self.target.nil? || !(self.target.is_a?(Array) || BYDAYS.keys.include?(self.target))
      elsif self.on
        errors.add(:on, "must be an array") if !self.on.present? || !self.on.is_a?(Array)
      end
  end
end