ruby-on-rails - Rails错误[:base] inside class method?

Question

好的，经过将近两个小时的搜索，没有找到我的问题的答案，我将在这里提出问题。

我有这种方法

类MatchesController

def import
 if Match.find_by_match_id(params[:match_id])
 redirect_to matches_url, notice: "Match already imported."
 else
 Match.import(params[:match_id], params[:league_id])
 # error handling here?
 redirect_to matches_url, :flash => { :success => "Match imported successfully." }
 end
end

在我的

类Match

def self.import(match,league)
    begin
      transaction do
        uri = URI('https://api.steampowered.com/IDOTA2Match_570/GetMatchDetails/V001/')
        params = { :match_id => match,
                   :key => "MY KEY" }

        uri.query = URI.encode_www_form(params)
        http = Net::HTTP.new(uri.host, uri.port)
        http.use_ssl = true
        http.verify_mode = OpenSSL::SSL::VERIFY_NONE
        request = Net::HTTP::Get.new(uri.request_uri)
        resp = http.request(request)

        data = resp.body

        result = JSON.parse(data)

        if result['result']['error']
          errors[:base] << "No Match with given ID found" 
          #self.errors.add_to_base("No Match with given ID found")
          break
        end

        match = result['result']
        players = match['players']
        pickban = match['picks_bans']
        leagueid = match['leagueid']

        if league != leagueid
          errors.add_to_base("This Match doesn't belong to the selected League")
          break
        end
      end
    rescue ActiveRecord::RecordInvalid => invalid
      # not yet implemented
    end
end

现在，当我导入一个匹配项但找不到该匹配项时，我想添加一个可以显示给用户的错误，但是出现此错误

undefined local variable or method `errors' for #<Class:0x007fde27cba478>

我在这里做错了什么？以及如何通过 flash向用户显示错误？

Answer 1

#errors是一个实例方法，您可以在Match类上调用它。您可以编写import方法以使其具有“匹配成功导入”或错误消息的返回值。