Method: Pacer::Routes::RouteOperations#make_pairs

Defined in:
lib/pacer/transform/make_pairs.rb

#make_pairs(other = nil, &block) ⇒ Object 



4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
 
# File 'lib/pacer/transform/make_pairs.rb', line 4

def make_pairs(other = nil, &block)
  if block
    # This would be cool if it could create a pair based on
    fail 'not implemented yet'
  elsif other
    if other.is_a? Route and [element_type, other.element_type].all? { |t| [:vertex, :edge].include? t }
      et = :path
    else
      et = :object
    end
    other = other.to_a
    if other.empty?
      empty(self)
    else
      flat_map(element_type: et, route_name: 'make_pairs') do |el|
        other.map { |o| [el, o] }
      end
    end
  else
    fail Pacer::ClientError, 'No source for pairs given to make_pairs'
  end
end