Module: ActsAsPublishable::ClassMethods

Defined in:
lib/acts_as_publishable/acts_as_publishable.rb

Instance Method Summary collapse

Instance Method Details

#acts_as_publishable(options = {}) ⇒ Object 



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# File 'lib/acts_as_publishable/acts_as_publishable.rb', line 5

def acts_as_publishable(options = {})
  metaclass = (class << self; self; end)
  
  return if metaclass.included_modules.include?(ActsAsPublishable::InstanceMethods)
  
  cattr_accessor :publish_now_column, :published_from_column, :published_to_column, :default_published_now
  
  self.publish_now_column = options[:publish_now_column] || 'publish_now'
  self.published_from_column = options[:published_from_column] || 'published_from'
  self.published_to_column = options[:published_to_column] || 'published_to'
  self.default_published_now = (options[:default_published_now] == true)
  
  scope :published, where(["#{publish_now_column} = :published OR (#{published_from_column} <= :published_from AND #{published_to_column} >= :published_to)", {:published => true, :published_from => Time.now.utc, :published_to => Time.now.utc}])
  
  before_save { |publishable| publishable[publish_now_column.to_sym] = default_published_now if publishable[publish_now_column.to_sym].nil?; true }
  
  validate_chronology
  
  send :include, ActsAsPublishable::InstanceMethods
end

#validate_chronology ⇒ Object 



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# File 'lib/acts_as_publishable/acts_as_publishable.rb', line 26

def validate_chronology
  validates_each published_to_column do |publishable, attribute, value|
    unless value.blank? || publishable[published_from_column.to_sym].blank?
      publishable.errors.add(attribute, :earlier_than_published_from, :message => "cannot be set earlier than #{published_from_column.to_s.humanize}") unless publishable[published_from_column.to_sym] < value
    end
  end
end