[英]After upgrading from Rails 4.0.3 to 4.1, WEBrick no longer prints anything to server console
[英]Custom error handling no longer works after upgrading from Rails 4 to Rails 5
我們使用config.exceptions_app
將異常路由到客戶錯誤 controller( 在此處描述)。 這在我們的 Rails 4 應用程序中運行良好,但自從我們升級到 Rails 5 后,此設置不再有效,並且在處理 function 時出現錯誤“未定義的局部變量或方法 `env'”。
應用程序.rb
module MyApp
class Application < Rails::Application
# Route errors to our custom error controller
# (See https://coderwall.com/p/w3ghqq)
config.exceptions_app = lambda do |env|
ExceptionsController.action(:render_error).call(env)
end
end
end
exceptions_controller.rb
class ExceptionsController < BaseController
def render_error
@exception = env["action_dispatch.exception"] # RAILS 5 RAISES ERROR HERE: "undefined local variable or method `env'"
exception_wrapper = ActionDispatch::ExceptionWrapper.new(request.env, @exception)
@status_code = exception_wrapper.status_code
trace = exception_wrapper.application_trace
# Custom notifications and stuff...
end
end
感謝@zakariah1 的幫助(如果您想發布答案,我會給您信任)。
事實證明,我必須對 render_error function 進行一些更改才能使一切正常。 我在下面發布了 Rails 4 和 Rails 5 版本供參考:
def render_error
# --- FOR RAILS 4: ---
## @exception = env["action_dispatch.exception"]
## exception_wrapper = ActionDispatch::ExceptionWrapper.new(env, @exception)
# --- FOR RAILS 5: ---
@exception = request.env["action_dispatch.exception"]
exception_wrapper = ActionDispatch::ExceptionWrapper.new(request.env['action_dispatch.backtrace_cleaner'], @exception)
trace = exception_wrapper.application_trace
# Custom notifications and stuff...
end
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