Module: Stepstepstep::ClassMethods

Defined in:
lib/stepstepstep.rb

Instance Method Summary collapse

Instance Method Details

#step(opts, opts2 = nil, &blk) ⇒ Object 



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# File 'lib/stepstepstep.rb', line 24

def step(opts, opts2 = nil, &blk)
  # adjust params
  opts = opts2.merge(opts => nil) if opts2.is_a?(Hash)

  # prepare data
  __opts = {}
  if opts.is_a?(Hash)
    [:only, :except, :if].each do |symbol|
      __opts[symbol] = opts.delete(symbol) if opts[symbol]
    end
    step_name, __deps = opts.first
    step_name = step_name.to_sym
    add_step_to_dep step_name, __deps
    self._before_filter_opts_hash[step_name] = __opts
  elsif opts.is_a?(Symbol) || opts.is_a?(String)
    step_name = opts.to_sym
    add_step_to_dep step_name
  else
    raise "Please use Hash, Symbol, String for opts"
  end

  # define method
  if self._steps_set.include?(step_name)
    if not self.instance_methods.include?(step_name)
      blk ||= (Proc.new {})
      define_method(step_name, blk)
    else
      Rails.logger.info "#{self.class.name}##{step_name} is already defined!"
    end
  end

  # 1. append first
  send(:before_filter, step_name, self._before_filter_opts_hash[step_name])

  # 2. extract all
  self._steps_set.each {|n1| self.skip_before_filter n1 }

  # 3. resort
  _steps = self._step_to_deps.tsort
  _steps.each do |n1|
    # 4. reappend all
    if self.instance_methods.include?(n1)
      puts "filter to opts: #{n1}, #{self._before_filter_opts_hash}" if ENV['DEBUG_STEPSTEPSTE']
      self.send(:before_filter, n1, self._before_filter_opts_hash[n1])
    end
  end
end