3.times do
  2
end
1 if not_solved?

高深莫测

+1

+1

+----------------------+-------+-------+---------+---------+-----+-------+
| Name                 | Lines |   LOC | Classes | Methods | M/C | LOC/M |
+----------------------+-------+-------+---------+---------+-----+-------+
| Controllers          | 23878 | 13391 |     370 |    1760 |   4 |     5 |
| Helpers              |  2381 |  1989 |       1 |     300 | 300 |     4 |
| Models               | 21610 | 14640 |     335 |    1894 |   5 |     5 |
| Mailers              |   745 |   625 |      27 |      91 |   3 |     4 |
| Javascripts          | 18787 | 14934 |      35 |    2317 |  66 |     4 |
| Libraries            |   702 |   552 |      14 |      71 |   5 |     5 |
| Controller specs     | 11811 | 10239 |       2 |      17 |   8 |   600 |
| Decorator specs      |   476 |   409 |       0 |       0 |   0 |     0 |
| Feature specs        |  1082 |   910 |       0 |       1 |   0 |   908 |
| Form specs           |  1505 |  1363 |       0 |       0 |   0 |     0 |
| Helper specs         |   156 |    63 |       0 |       0 |   0 |     0 |
| Lib specs            |    48 |    41 |       0 |       0 |   0 |     0 |
| Mailer specs         |   393 |   329 |       0 |       0 |   0 |     0 |
| Model specs          | 18993 | 13438 |       0 |      10 |   0 |  1341 |
| Policy specs         |    36 |    31 |       0 |       0 |   0 |     0 |
| Presenter specs      |   239 |   214 |       0 |       0 |   0 |     0 |
| Query specs          |   174 |   156 |       0 |       0 |   0 |     0 |
| Request specs        |   713 |   600 |       0 |       0 |   0 |     0 |
| Serializer specs     |   784 |   419 |       0 |       0 |   0 |     0 |
| Service specs        |  5376 |  4762 |       1 |      15 |  15 |   315 |
| Uploader specs       |    51 |    41 |       0 |       0 |   0 |     0 |
| Validator specs      |    75 |    64 |       1 |       1 |   1 |    62 |
| Value specs          |   268 |   225 |       0 |       0 |   0 |     0 |
| View specs           |  7107 |  6745 |       0 |       4 |   0 |  1684 |
| Worker specs         |   114 |   101 |       0 |       0 |   0 |     0 |
| Wrapper specs        |    32 |    26 |       0 |       0 |   0 |     0 |
+----------------------+-------+-------+---------+---------+-----+-------+
| Total                | 117536 | 86307 |     786 |    6481 |   8 |    11 |
+----------------------+-------+-------+---------+---------+-----+-------+
  Code LOC: 46131     Test LOC: 40176     Code to Test Ratio: 1:0.9

分母＋1

我以为会一直嵌套呢

如果有A任务耗时多了怎么办 如果有A任务失败了怎么办

其实直接在rails route里面把你record的路由全部写出来就好了 一旦有新的记录就重新reload一次，

match your_record_url, to: 'controller#action', via: :all, defaults: { id: record_id }

如果 试着去用Rails内置的route方法解析和查找记录 或许可以这样用 ps: 如果路由记录太多话 可能需要考虑其他办法

require 'singleton'
require 'action_dispatch'
require 'active_support/all'
class RequestRoutes
  include Singleton

  def match(path, method)
    memos = simulate.simulate(path).try(:memos)
    return nil if memos.blank?
    memos.reverse.find { |memo| memo[:request_method] == method }
  end

  def add_route(api_request)
    append_to_ast(api_request)
    clear_cache
  end

  def clear_cache
    @simulate = nil
  end

  def reload
    @ast = nil
    @simulate = nil
  end

  private

  def simulate
    @simulate ||= begin
      builder = ActionDispatch::Journey::GTG::Builder.new ActionDispatch::Journey::Nodes::Or.new ast
      table = builder.transition_table
      ActionDispatch::Journey::GTG::Simulator.new table
    end
  end

  def ast
    @ast ||= []
    # 这里可以把你所有的记录全部转换成ast
    # YourRecord.all.map do |api_request|
    #   parse_to_nodes(api_request)
    #  end
  end

  def parse_to_nodes(api_request)
    memo = {
      request_id: api_request[:id],
      request_method: api_request[:method],
      pattern: ActionDispatch::Journey::Path::Pattern.from_string(api_request[:url])
    }
    nodes = parser.parse (api_request[:url])
    nodes.each { |n| n.memo = memo }
    nodes
  end

  def append_to_ast(api_request)
    @ast << parse_to_nodes(api_request)
  end

  def parser
    ActionDispatch::Journey::Parser.new
  end
end

request = {
    id: 1,
    method: 'GET',
    url: '/publishers/:p_id/magazines/:m_id/photos/:p_id'
}
RequestRoutes.instance.add_route(request)
memo =  RequestRoutes.instance.match('/publishers/1/magazines/2/photos/1', 'GET')
match_date = memo[:pattern].match('/publishers/1/magazines/2/photos/1')
match_date.names.zip(match_date.captures).to_h

吱