ruby-on-rails - 当我有一个自定义页面时，得到一个 404 Not Found 默认错误页面 "Active Record::RecordNotFound"

Question

我有一个 404 和 500 状态代码的自定义错误页面，当我放置 localhost:3000/something.html 时它工作正常。但是当我放置 localhost:3000/controller/element_of_a_model 时不起作用。

路线.rb:

if Rails.env.production? then
  unless Rails.application.config.consider_all_requests_local
    get '*not_found', to: 'errors#error_404'
    get '*internal_server_error', to: 'errors#error_500'
  end
else
  unless
    get '*not_found', to: 'errors#error_404'
    get '*internal_server_error', to: 'errors#error_500'
  end
end

错误 Controller :

def error_404
    render_error 404
end

def error_500
    render_error 500
end

private
   def render_error(status)
       respond_to do |format|
           format.html { render 'error_' + status.to_s() + '.html', :status => status, :layout => 'errors'}
           format.all { render :nothing => true, :status => status }
   end
end

Answer 1

你必须把它放在应用程序 Controller 中:

rescue_from ActiveRecord::RecordNotFound do |exception|
  render_error 404
end


def render_error(status)
  respond_to do |format|
    format.html { render 'error_' + status.to_s() + '.html', :status => status, :layout => 'errors'}
    format.all { render :nothing => true, :status => status }
  end
end

实际上你的 ErrorController 会被路由触发，但是你必须为异常添加逻辑。