Module: Rediska::SortMethod

Included in:
Connection
Defined in:
lib/rediska/sort_method.rb

Instance Method Summary collapse

Instance Method Details

#sort(key, *redis_options_array) ⇒ Object 



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# File 'lib/rediska/sort_method.rb', line 4

def sort(key, *redis_options_array)
  return [] if !key || type(key) == 'none'

  unless %w(list set zset).include? type(key)
    warn "Operation against a key holding the wrong kind of value: Expected list, set or zset at #{key}."
    raise Redis::CommandError.new('WRONGTYPE Operation against a key holding the wrong kind of value')
  end

  options = extract_options_from(redis_options_array)

  projected = project(data[key], options[:by], options[:get])
  sorted = sort_by(projected, options[:order])
  sliced = slice(sorted, options[:limit])

  options[:store] ? rpush(options[:store], sliced) : sliced.flatten(1)
end