Method: Kiss::Action.action_instance_for_path

Defined in:
lib/kiss/action.rb

.action_instance_for_path(path, request, params) ⇒ Object 



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# File 'lib/kiss/action.rb', line 20

def action_instance_for_path(path, request, params)
  action_subdir = ''
  action_path = '/'
  action_found = false
  args = []
  objects = {}
  breadcrumbs = []
  object = nil
  object_part = nil
  collection = nil
  
  request.redirect_action('/') if path == ''
  
  action_class = self.get_child_class
  
  parts = path.sub(/\A\/*/, '').split(/\/+/)
  parts.push('') if path[-1, 1] == '/'
  
  while part = parts.shift
    action_path += part
    part = (object_part ? 'view' : @@controller.default_action) if part.empty?
    
    # =column syntax not yet supported
    # when adding this support, be sure to change Action#redirect_action also
    
    if part =~ /\A([\w\-\.\+\%]+)\=([\w\-\.\+\%]+)\Z/
      params[$1.url_unescape] = $2.url_unescape
      action_path += '/' + part
      next
    end
    
    if part !~ /\A[\w\-\.]*\Z/i
      raise Kiss::FileNotFoundError::InvalidAction, 'invalid action path'
    end
              
    if redirect = action_class.aliases[part]
      action, options = redirect
      request.redirect_action(
        absolute_uri( action + '/' + parts.join('/'), action_path ),
        options
      )
    end
    
    test_path = @@controller.action_dir + action_subdir + '/' + part
    if @@controller.directory_exists?(test_path)
      action_subdir += '/' + part
      action_class = action_class.get_child_class(part, true)
      object = object_part = nil
      
      collection = action_class.breadcrumb
      
      action_path += '/'
      if action_class.breadcrumbs.empty?
        if File.file?("#{@@controller.action_dir}#{action_class.name}index.rb") ||
            File.file?("#{@@controller.action_dir}#{action_class.name}index.rhtml")
          breadcrumbs << [action_class.breadcrumb, action_path]
        end
      else
        breadcrumbs.push(*action_class.breadcrumbs)
      end
    else
      # remove .rb extension, if any
      part.sub!(/(\.rb)+\Z/, '')
      
      # does part have an extension?
      if part =~ /\A(.+)\.(\w+)\Z/
        extension = $2
        part = $1
      else
        extension = 'rhtml'
      end
      
      test_path = @@controller.action_dir + action_subdir + '/' + part
      if File.file?("#{test_path}.rb") || File.file?("#{test_path}.#{(extension == 'xls') ? 'txt' : extension}")            
        action_found = true
        action_class = action_class.get_child_class(part)
        break
      else
        unless part =~ /\A[\w\.\-]+\Z/
          raise Kiss::FileNotFoundError, "invalid URI"
        end
        
        object_options = action_class.object_options
        if object_options && (object_options[:column] != :id || part =~ /\A\d+\Z/)
          object_part = part
          object = request.dbm[object_options[:class_name]].find(object_options[:column] => object_part)
          objects[object_options[:variable_name]] = object
          
          action_path += '/'
          
          if !object
            raise Kiss::FileNotFoundError, "resource '#{test_path.html_escape}' not found"
          end
          
          object_breadcrumb = action_class.object_breadcrumb
          object_display_name = object[object.class.display_column] ||
            (object.send(object.class.display_column) rescue nil)
          if (object_breadcrumb != false)
            breadcrumbs << [
              (object_breadcrumb.is_a?(Proc) ? object_breadcrumb.call(object) : object_breadcrumb) ||
                object_display_name,
              action_path
            ]
          end
        
          next
        else
          if part == 'view'
            request.redirect_action(path + '..')
          end
          raise Kiss::FileNotFoundError, "resource '#{test_path.html_escape}' not found"
        end
      end
    end
  end
  
  # if no action found, add a trailing slash and try again
  request.redirect_action(path + '/') unless action_found
  
  # keep rest of path_info in args
  args.push(*parts)
  
  action = action_class.new(request, action_path, extension, collection, object, object_part, object_display_name, breadcrumbs, args, params)
  objects.each_pair do |key, value|
    action.instance_variable_set(key, value)
  end
  action
end