Module: ROM::Commands::Graph::ClassInterface Private

Included in:
ROM::Commands::Graph
Defined in:
lib/rom/commands/graph/class_interface.rb

Overview

This module is part of a private API. You should avoid using this module if possible, as it may be removed or be changed in the future.

Class methods for command Graph

Instance Method Summary collapse

Instance Method Details

#build(registry, options, path = EMPTY_ARRAY) ⇒ Graph

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Build a command graph recursively

This is used by Container#command when array with options is passed in

Parameters:

  • registry (Registry) —

    The command registry from container

  • options (Array) —

    The options array

  • path (Array) (defaults to: EMPTY_ARRAY) —

    The path for input evaluator proc

Returns:



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# File 'lib/rom/commands/graph/class_interface.rb', line 23

def build(registry, options, path = EMPTY_ARRAY)
  options.reduce { |spec, other| build_command(registry, spec, other, path) }
end

#build_command(registry, spec, other, path) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/rom/commands/graph/class_interface.rb', line 28

def build_command(registry, spec, other, path)
  cmd_opts, nodes = other

  key, relation =
    if spec.is_a?(Hash)
      spec.to_a.first
    else
      [spec, spec]
    end

  name, opts =
    if cmd_opts.is_a?(Hash)
      cmd_opts.to_a.first
    else
      [cmd_opts]
    end

  command = registry[relation][name]
  tuple_path = Array[*path] << key
  input_proc = InputEvaluator.build(tuple_path, nodes)

  command = command.curry(input_proc, opts)

  if nodes
    if nodes.all? { |node| node.is_a?(Array) }
      command.combine(*nodes.map { |node| build(registry, node, tuple_path) })
    else
      command.combine(build(registry, nodes, tuple_path))
    end
  else
    command
  end
end