Class ActionController::Routing::Optimisation::PositionalArguments
In: vendor/rails/actionpack/lib/action_controller/routing_optimisation.rb
Parent: Optimiser

Given a route: map.person ’/people/:id‘

If the user calls person_url(@person), we can simply return a string like "/people/#{@person.to_param}" rather than triggering the expensive logic in url_for

Methods

Public Instance methods

[Source]

    # File vendor/rails/actionpack/lib/action_controller/routing_optimisation.rb, line 69
69:         def generation_code
70:           elements = []
71:           idx = 0
72: 
73:           if kind == :url
74:             elements << '#{request.protocol}'
75:             elements << '#{request.host_with_port}'
76:           end
77: 
78:           elements << '#{request.relative_url_root if request.relative_url_root}'
79: 
80:           # The last entry in route.segments appears to # *always* be a
81:           # 'divider segment' for '/' but we have assertions to ensure that
82:           # we don't include the trailing slashes, so skip them.
83:           (route.segments.size == 1 ? route.segments : route.segments[0..-2]).each do |segment|
84:             if segment.is_a?(DynamicSegment)
85:               elements << segment.interpolation_chunk("args[#{idx}].to_param")
86:               idx += 1
87:             else
88:               elements << segment.interpolation_chunk
89:             end
90:           end
91:           %("#{elements * ''}")
92:         end

[Source]

    # File vendor/rails/actionpack/lib/action_controller/routing_optimisation.rb, line 58
58:         def guard_condition
59:           number_of_arguments = route.segment_keys.size
60:           # if they're using foo_url(:id=>2) it's one 
61:           # argument, but we don't want to generate /foos/id2
62:           if number_of_arguments == 1
63:             "defined?(request) && request && args.size == 1 && !args.first.is_a?(Hash)"
64:           else
65:             "defined?(request) && request && args.size == #{number_of_arguments}"
66:           end
67:         end

[Validate]