找不到“破坏”动作，但它在那里......奇怪的错误

Posted 2023-02-25

【中文标题】找不到“破坏”动作，但它在那里......奇怪的错误

【英文标题】：Can't find the the 'destroy' action, but it's there... weird error

【发布时间】：2011-07-21 20:07:27

【问题描述】：

我的应用似乎无法在我的 Sessions 控制器中找到“销毁”操作。很奇怪，因为它就在那里。

我有一个这样的链接：

<%= link_to "Logout", logout_path %>

我在routes.rb 中路由到我的销毁操作：

match '/logout' => "sessions#destroy", :as => "logout"

这是我的会话控制器中的“销毁”操作：

def destroy
  reset_session
  redirect_to videos_path
end

当我单击链接时，我的日志中出现此错误：

Started GET "/logout" for 127.0.0.1 at Thu Mar 24 02:58:36 -0700 2011

AbstractController::ActionNotFound (The action 'destroy' could not be found for SessionsController):

这是怎么回事？

更新：

这是我的 routes.rb 文件：

root :to => "videos#new"
resources :videos
resources :video_votes
resources :users
resource :session
match '/login' => "sessions#new", :as => "login"
match '/logout' => "sessions#destroy", :as => "logout"

SessionsController.instance_methods的输出：

[“protected_instance_variables”，“asset_path”，“hidden_​​actions？”，“with_warnings”，“inspect”，“content_type”，“new_polymorphic_url”，“authenticate_with_http_basic”，“new_user_path”，“details_for_lookup”，“allow_forgery_protection=”， "view_context"、"protected_instance_variables="、"asset_path="、"default_url_options"、"authenticate_with_http_token"、"id"、"content_type="、"assign_shortcuts"、"_routes"、"_save_fragment"、 “default_url_options=”，“hash_for_new_session_path”，“redirect_to_facebox”，“edit_video_path”，“_layout_conditions”，“enable_warnings”，“new_polymorphic_path”，“request_http_basic_authentication”，“hash_for_new_user_url”，“方法”，“append_view_path”，“request_http_token_authentication”， hash_for_logout_path", "hidden_​​actions", "_layout_conditions=", "send", "hash_for_edit_video_vote_path", "handler_for_rescue", "expire_action", "new_session_path", "hidden_​​actions=", "gem", "caching_allowed ?", "hash_for_edit_video_url", "asset_host ", "_renderers?", "to_json", "singleton_methods", "page_cache_extension", "authenticate", "new_user_url", "nil?", "asset_host=", "responder", "logout_path", "action_methods", "格式”，“prepend_view_path”，“edit_video_vote_path”，“_handle_method_missing”，“page_cache_extension =”，“_one_time_conditions_valid_16？”，“protect_against_forgery？”，“rescue_handlers”，“responder =”，“hash_for_new_session_url”，“断点”，“格式= "、"perform_caching"、"require_dependency"、"verify_authenticity_token"、"edit_video_url"、"to_yaml_properties"、"form_authenticity_token"、"rescue_handlers="、"with_options"、"protected_methods"、"silence_stderr"、"perform_caching="、"equal ?”、“可重复？”、“hash_for_logout_url”、“mimes_for_respond_to”、“hash_for_edit_video_vote_url”、“_render_option_json”、“record_key_for_dom_id”、“class_eval”、“append_info_to_payload”、“new_session_url”、“mimes_for_respond_to=”、“回调”、“响应者？”、“private_methods”、“silence_stream”、“hash_for_edit_user_path”、“send”、“ha sh_for_root_path”、“html_safe?”、“执行？”、“eql?”、“current_user”、“to_yaml”、“decode_b”、“logout_url”、“id”、“edit_video_vote_url”、“_render_option_js”、“verified_request？” 、“sanitize_dom_id”、“hash_for_video_path”、“_render_template”、“handle_unverified_request”、“instance_eval”、“render”、“edit_user_path”、“public_methods”、“cache_page”、“hash_for_root_url”、“respond_to”、“type”、“ _render_option_xml”、“hash_for_edit_session_path”、“action_has_layout?”、“hash_for_video_url”、“mimes_for_respond_to?”、“translate”、“instance_exec”、“hash_for_edit_user_url”、“抑制”、“instance_variables”、“空白？”、“hash_for_videos_path”、 “method_for_action”、“b64encode”、“class”、“_render_option_update”、“url_options”、“hash_for_video_vote_path”、“singleton_class”、“lookup_context”、“edit_session_path”、“reset_session”、“video_url”、“unloadable”、“instance_variable_get ", "encode64", "dispatch", "present?", "edit_user_url", "videos_path", "==", "hash_for_rails_info_properties_path", "presence", "h ead”、“_view_paths?”、“===”、“clone”、“session”、“fresh_when”、“video_vote_path”、“_normalize_options”、“config”、“find_template”、“view_context_class”、“response_body”、 “fragment_cache_key”、“hash_for_edit_session_url”、“form_authenticity_param”、“hash_for_video_votes_path”、“view_context_class=”、“logged_in？”、“调试器”、“instance_variable_set”、“response_body=”、“locale”、“authenticate_or_request_with_http_digest”、“_hash_for_user ，“=〜”，“_helper_methods”，“access_denied”，“hash_for_videos_url”，“创建”，“rails_info_properties_path”，“dup”，“cache_store”，“polymorphic_path”，“locale =”，“hash_for_video_vote_url”，“_helper_methods= "、"instrument_fragment_cache"、"edit_session_url"、"进程"、"cache_store="、"_renderers"、"object_id"、"video_votes_path"、"_process_action_callbacks"、"fragment_exist?"、"as_json"、"user_path"、"respond_to ?", "_renderers=", "expires_in", "stale?", "render_to_facebox", "read_fragment", "videos_url", "acts_like?", "allow_concurrency", "hash_for_ra ils_info_properties_url"、"template_exists?"、"send_action"、"returning"、"taint"、"expires_now"、"video_vote_url"、"t"、"assets_dir"、"view_paths"、"_helpers"、"allow_concurrency="、" params”、“redirect_to”、“middleware_stack”、“to_enum”、“hash_for_video_votes_url”、“assets_dir=”、“instance_variable_defined？”、“require_or_load”、“_prefix”、“_helpers=”、“params=”、“authenticate_with_http_digest” ，“hash_for_user_url”，“middleware_stack=”，“dom_class”，“write_fragment”，“new_video”，“retrieve_response_from_mimes”，“_layout_conditions？”，“rails_info_properties_url”，“to_param”，“hash_for_users_path”，“javascripts_dir”，“缓存” ，“root_url”，“扩展”，“新”，“enum_for”，“video_votes_url”，“javascripts_dir =”，“localize”，“request_http_digest_authentication”，“user_url”，“send_file”，“dom_id”，“污染？” ，“通知”，“hash_for_new_video_path”，“respond_with”，“env”，“to_query”，“load”，“consider_all_requests_local”，“untaint”，“users_path”，“render_to_string”，“try”，“env =”， “标题”，“hash_for _login_path"、"consider_all_requests_local="、"instance_of?"、"view_runtime"、"`"、"require_association"、"headers="、"hash_for_session_path"、"send_data"、"decode64"、"new_video_path"、"default_url_options?" , "view_runtime=", "_helpers?", "logger", "instance_values", "require", "hash_for_users_url", "freeze", "stylesheets_dir", "rescue_handlers?", "login_path", "logger=", " kind_of?”、“status”、“hash_for_new_video_vote_path”、“stylesheets_dir=”、“response”、“suppress_warnings”、“session_path”、“controller_name”、“hash_for_new_video_url”、“status=”、“controller_path”、“response=” ，“action_has_layout=”，“instance_variable_names”，“collect_mimes_from_class_level”，“users_url”，“l”，“edit_polymorphic_url”，“authenticate_or_request_with_http_basic”，“request_forgery_protection_token”，“render_to_body”，“run_callbacks”，“hash_for_login_url”，“video_path”， “is_a?”、“new_video_vote_path”、“方法”、“request_forgery_protection_token=”、“load_dependency”、“db_runtime”、“hash_for_session_url”、“t ap”，“冻结？”，“new_video_url”，“_helper_methods？”，“copy_instance_variables_from”，“url_for”，“alert”，“to_a”，“page_cache_directory”，“db_runtime=”，“flash”，“login_url”， “rescue_action”、“page_cache_directory=”、“_handle_render_options”、“polymorphic_url”、“hash_for_new_video_vote_url”、“display”、“expire_fragment”、“taguri”、“cleanup_view_runtime”、“session_url”、“close_facebox”、“location”、“ default_render"、"to_s"、"silence_warnings"、"taguri="、"helpers_path"、"request"、"edit_polymorphic_path"、"hash_for_new_user_path"、"action_name"、"_view_paths"、"location="、"hash"、" authenticate_or_request_with_http_token"、"initialize_template_class"、"helpers_path="、"request="、"new_video_vote_url"、"action_name="、"_view_paths="、"rescue_with_handler"、"require_library_or_gem"、"expire_page"、"to_yaml_style"、"middleware_stack? "、"redirect_from_facebox"、"root_path"、"allow_forgery_protection"、"hash_for_edit_video_path"]

这是我的整个 Sessions 控制器：

class SessionsController < ApplicationController

  def create
    if user = User.authenticate(params[:email], params[:password])
      session[:user_id] = user.id
      redirect_to videos_path
    else
      flash.now[:alert] = "Invalid login/password combination"
      render :action => 'new'
    end

    def destroy
      reset_session
      redirect_to videos_path
    end
  end
end

【问题讨论】：

你试过重启你的服务器吗？还要仔细检查您的销毁操作是否意外放入私有内部。我之前犯过几次这个错误

是的，我已经重启了，方法不是私有的...

hmm wierd.... 看不出有什么问题

呵呵。当然。我会看看我能不能弄明白。

谢谢！如果您想查看更多代码，请告诉我。

【参考方案1】：

看起来我在我的 Sessions 控制器中弄乱了end 的位置，导致我的销毁方法不起作用...

我不得不将我的 Sessions 控制器更改为：

class SessionsController < ApplicationController

def create
  if user = User.authenticate(params[:email], params[:password])
    session[:user_id] = user.id
    redirect_to videos_path
  else
    flash.now[:alert] = "Invalid login/password combination"
    render :action => 'new'
  end
end

  def destroy
    reset_session
    redirect_to videos_path
  end
end

【参考方案2】：

尝试改变这一行：

match '/logout' => "sessions#destroy", :as => "logout"

让它看起来像这样：

get '/logout' => "sessions#destroy", :as => "logout"

这是相同的路由，但它只会响应获取此特定操作的请求。

【讨论】：

它实际上是delete 方法（这是自然的post）但不是get

【参考方案3】：

好的，我想我明白了

将 routes.rb 更改为

resources :sessions