Module: Acts::AsSweepable::ClassMethods

Defined in:
lib/acts_as_sweepable.rb

Instance Method Summary collapse

Instance Method Details

#sweep(*sources) ⇒ Object 



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# File 'lib/acts_as_sweepable.rb', line 13

def sweep(*sources)
  # time_ago = nil, conditions = nil, created_or_updated = true
  options = sources.extract_options!.stringify_keys
  options = options.inject({}){|memo,(k,v)| memo[k.to_sym] = v; memo}

  time_ago = options.delete(:time)
  conditions = options.delete(:conditions)
  columns = [options.delete(:columns) || :updated_at].flatten
  remove_method = options.delete(:method) || :destroy_all
  time_format = options.delete(:format) || :db

  time = case time_ago
    when /^(\d+)s$/ then Time.now - $1.to_i.second
    when /^(\d+)m$/ then Time.now - $1.to_i.minute
    when /^(\d+)h$/ then Time.now - $1.to_i.hour
    when /^(\d+)d$/ then Time.now - $1.to_i.day
    else raise(InvalidTime, time_ago)
  end

  case time_format
    when :db then
      time = time.to_s(:db)
    when :integer then
      time = time.to_i
    else
      raise(InvalidFormat, time_format)
  end

  statement = []
  columns.each do |column|
    statement << "#{column}  < '#{time}'"
  end

  statement = "(#{statement.join(' OR ')})"

  conditions = "AND #{conditions} " if conditions

  # Run on each block of code
  if block_given?
    els = self.where("#{statement} #{conditions}")
    els.find_each {|el| yield el }
  end

  res = self.send(remove_method, "#{statement} #{conditions}")
  case res
    when Integer
      res
    when nil
      0
    when Array
      res.length
  end
end