从 Ruby 2.7 更新到 Ruby 3.0.1 后出现 ArgumentError

Question

将 ruby​​ 更新到 3.0.1 后，非常简单的代码无法执行 app_uninstalled_job.rb

class AppUninstalledJob < ActiveJob::Base
  def perform(shop_domain:, webhook:)
    shop = Shop.find_by(shopify_domain: shop_domain)

与错误

Error performing AppUninstalledJob (Job ID: ***) from Async(default) in 0.18ms: ArgumentError (wrong number of arguments (given 1, expected 0; required keywords: shop_domain, webhook)):
.../app/jobs/app_uninstalled_job.rb:2:in `perform'

数据接收正确

Started POST "/webhooks/app_uninstalled" for 34.69.74.99 at 2021-07-20 04:44:31 +0000
Processing by ShopifyApp::WebhooksController#receive as */*
  Parameters: {"id"=>876876876, "name"=>"shopname", "email"=>"***@gmail.com", "domain"=>"shop.myshopify.com", "province"=>.....}}
[ActiveJob] Enqueued AppUninstalledJob (Job ID: ) to Async(default) with arguments: {:shop_domain=>"shop.myshopify.com", :webhook=>{"id"=>876876876, "name"=>"shop", "email"=>"***@gmail.com", "domain"=>"shop.myshopify.com", "province"=>....}


[ActiveJob] [AppUninstalledJob] [****9] Performing AppUninstalledJob (Job ID: **99) from Async(default) enqueued at 2021-07-20T04:44:31Z with arguments: {:shop_domain=>"shop.myshopify.com", :webhook=>{"id"=>876876876, "name"=>"shop", "email"=>"***@gmail.com", "domain"=>"shop.myshopify.com", "province"....}
Completed 200 OK in 6ms (ActiveRecord: 0.0ms | Allocations: 2327)

它与处理参数委托有关https://www.ruby-lang.org/en/news/2019/12/12/separation-of-positional-and-keyword-arguments-in-ruby-3-0/

如何解决错误 ArgumentError（参数数量错误（给定 1，预期 0；必需关键字：shop_domain、webhook）

更新：webhook 控制器的代码

module ShopifyApp
  class MissingWebhookJobError < StandardError; end

  class WebhooksController < ActionController::Base
    include ShopifyApp::WebhookVerification

    def receive
      params.permit!
      job_args = { shop_domain: shop_domain, webhook: webhook_params.to_h }
      webhook_job_klass.perform_later(job_args)
      head(:ok)
    end

    private

    def webhook_params
      params.except(:controller, :action, :type)
    end

    def webhook_job_klass
      webhook_job_klass_name.safe_constantize || raise(ShopifyApp::MissingWebhookJobError)
    end

    def webhook_job_klass_name(type = webhook_type)
      [webhook_namespace, "#{type}_job"].compact.join('/').classify
    end

    def webhook_type
      params[:type]
    end

    def webhook_namespace
      ShopifyApp.configuration.webhook_jobs_namespace
    end
  end
end

Answer 1

由于您已经分享了有关 Ruby 3 中的更改的链接，答案就在链接本身中：

Ruby 3.0 中位置参数和关键字参数的分离：

在大多数情况下，您可以通过添加 double splat 运算符来避免不兼容。它显式指定传递关键字参数而不是哈希对象。同样，您可以添加大括号 {} 来显式传递 Hash 对象，而不是关键字参数。

现在看看你的代码，你正在这样做：

job_args = { shop_domain: shop_domain, webhook: webhook_params.to_h }
webhook_job_klass.perform_later(job_args)

即，将散列传递给方法，而不是传递关键字参数，您可以通过添加 double splat 运算符来修复该关键字参数：

webhook_job_klass.perform_later(**job_args)

有关错误的更多信息：

错误是：

ArgumentError (wrong number of arguments (given 1, expected 0; required keywords: shop_domain, webhook)):

这意味着shop_domain和webhook是必需的关键字参数，并且您正在传递单个参数，因为 Ruby 现在将哈希视为单个参数而不是关键字参数，直到您添加 double splat 运算符。