Ruby-模块:: NoMethodError

self.

module Prober
  def probe_invoke(type, data = {})
    p = Probe.new({:probe_type => type.to_s,
        :data => data.to_json, :probe_status => 0, :retries => 0})
    p.save
  end
end

require \'prober\'
include Prober
probe_invoke(\"send_sms\", sms_text)

module Prober
  def Prober.probe_invoke(type, data = {})
    p = Probe.new({:probe_type => type.to_s,
        :data => data.to_json, :probe_status => 0, :retries => 0})
    p.save
  end
end

def self.probe_invoke

self

module Prober
  class << self
    def probe_invoke(type, data = {})
      p = Probe.new({:probe_type => type.to_s,
          :data => data.to_json, :probe_status => 0, :retries => 0})
      p.save
    end

    # more module instance methods ...
  end
end

def Prober.mymethod ...

def self.mymethod ...

module_function

module Prober
  module_function # <-- preferred style nowadays

  def probe_invoke(type, data = {})
    Probe.new(probe_type:   type.to_s,
              data:         data.to_json,
              probe_status: 0,
              retries:      0)
      .save # no need for a temporary variable
  end

  # more module methods ...
end

extend self

class << self

module Prober
  def Prober.probe_invoke(type, data = {})
    p = Probe.new({:probe_type => type.to_s,
        :data => data.to_json, :probe_status => 0, :retries => 0})
    p.save
  end
end

Prober.probe_invoke(\"send_sms\", sms_text)