问题描述
我在使用 rails 中的 form_for 时遇到了 collection_select 问题。这个问题来自一种方法，该方法在我将路由命名为仅供管理员使用之前一直有效。据我所知，管理路由正在正常工作，但这是我能找到的唯一联系，说明此方法停止工作的原因。
错误：
undefined method `id' for #<Array:0x00007faf084c7048>
如果有帮助，这里是跟踪：
actionview (6.1.3.2) lib/action_view/helpers/tags/base.rb:41:in `public_send'
actionview (6.1.3.2) lib/action_view/helpers/tags/base.rb:41:in `value'
actionview (6.1.3.2) lib/action_view/helpers/tags/collection_select.rb:18:in `block in render'
actionview (6.1.3.2) lib/action_view/helpers/tags/collection_select.rb:18:in `fetch'
actionview (6.1.3.2) lib/action_view/helpers/tags/collection_select.rb:18:in `render'
actionview (6.1.3.2) lib/action_view/helpers/form_options_helper.rb:203:in `collection_select'
actionview (6.1.3.2) lib/action_view/helpers/form_options_helper.rb:835:in `collection_select'
app/views/admin/users/_edit_my_profile.html.erb:28
actionview (6.1.3.2) lib/action_view/helpers/capture_helper.rb:45:in `block in capture'
actionview (6.1.3.2) lib/action_view/helpers/capture_helper.rb:209:in `with_output_buffer'
actionview (6.1.3.2) lib/action_view/helpers/capture_helper.rb:45:in `capture'
actionview (6.1.3.2) lib/action_view/helpers/form_helper.rb:1004:in `fields_for'
actionview (6.1.3.2) lib/action_view/helpers/form_helper.rb:2195:in `fields_for'
app/views/admin/users/_edit_my_profile.html.erb:16
actionview (6.1.3.2) lib/action_view/helpers/capture_helper.rb:45:in `block in capture'
actionview (6.1.3.2) lib/action_view/helpers/capture_helper.rb:209:in `with_output_buffer'
actionview (6.1.3.2) lib/action_view/helpers/capture_helper.rb:45:in `capture'
actionview (6.1.3.2) lib/action_view/helpers/form_helper.rb:450:in `form_for'
app/views/admin/users/_edit_my_profile.html.erb:3
actionview (6.1.3.2) lib/action_view/base.rb:247:in `public_send'
actionview (6.1.3.2) lib/action_view/base.rb:247:in `_run'
actionview (6.1.3.2) lib/action_view/template.rb:154:in `block in render'
activesupport (6.1.3.2) lib/active_support/notifications.rb:205:in `instrument'
actionview (6.1.3.2) lib/action_view/template.rb:345:in `instrument_render_template'
actionview (6.1.3.2) lib/action_view/template.rb:152:in `render'
actionview (6.1.3.2) lib/action_view/renderer/partial_renderer.rb:285:in `block in render_partial_template'
activesupport (6.1.3.2) lib/active_support/notifications.rb:203:in `block in instrument'
activesupport (6.1.3.2) lib/active_support/notifications/instrumenter.rb:24:in `instrument'
activesupport (6.1.3.2) lib/active_support/notifications.rb:203:in `instrument'
actionview (6.1.3.2) lib/action_view/renderer/partial_renderer.rb:280:in `render_partial_template'
actionview (6.1.3.2) lib/action_view/renderer/partial_renderer.rb:271:in `render'
actionview (6.1.3.2) lib/action_view/renderer/renderer.rb:81:in `render_partial_to_object'
actionview (6.1.3.2) lib/action_view/renderer/renderer.rb:27:in `render_to_object'
actionview (6.1.3.2) lib/action_view/renderer/renderer.rb:22:in `render'
actionview (6.1.3.2) lib/action_view/helpers/rendering_helper.rb:38:in `block in render'
actionview (6.1.3.2) lib/action_view/base.rb:273:in `in_rendering_context'
actionview (6.1.3.2) lib/action_view/helpers/rendering_helper.rb:34:in `render'
app/views/admin/users/profile.html.erb:14
actionview (6.1.3.2) lib/action_view/base.rb:247:in `public_send'
actionview (6.1.3.2) lib/action_view/base.rb:247:in `_run'
actionview (6.1.3.2) lib/action_view/template.rb:154:in `block in render'
activesupport (6.1.3.2) lib/active_support/notifications.rb:205:in `instrument'
actionview (6.1.3.2) lib/action_view/template.rb:345:in `instrument_render_template'
actionview (6.1.3.2) lib/action_view/template.rb:152:in `render'
actionview (6.1.3.2) lib/action_view/renderer/template_renderer.rb:61:in `block (2 levels) in render_template'
activesupport (6.1.3.2) lib/active_support/notifications.rb:203:in `block in instrument'
activesupport (6.1.3.2) lib/active_support/notifications/instrumenter.rb:24:in `instrument'
activesupport (6.1.3.2) lib/active_support/notifications.rb:203:in `instrument'
actionview (6.1.3.2) lib/action_view/renderer/template_renderer.rb:56:in `block in render_template'
actionview (6.1.3.2) lib/action_view/renderer/template_renderer.rb:71:in `block in render_with_layout'
activesupport (6.1.3.2) lib/active_support/notifications.rb:203:in `block in instrument'
activesupport (6.1.3.2) lib/active_support/notifications/instrumenter.rb:24:in `instrument'
activesupport (6.1.3.2) lib/active_support/notifications.rb:203:in `instrument'
actionview (6.1.3.2) lib/action_view/renderer/template_renderer.rb:70:in `render_with_layout'
actionview (6.1.3.2) lib/action_view/renderer/template_renderer.rb:55:in `render_template'
actionview (6.1.3.2) lib/action_view/renderer/template_renderer.rb:11:in `render'
actionview (6.1.3.2) lib/action_view/renderer/renderer.rb:61:in `render_template_to_object'
actionview (6.1.3.2) lib/action_view/renderer/renderer.rb:29:in `render_to_object'
actionview (6.1.3.2) lib/action_view/rendering.rb:117:in `block in _render_template'
actionview (6.1.3.2) lib/action_view/base.rb:273:in `in_rendering_context'
actionview (6.1.3.2) lib/action_view/rendering.rb:116:in `_render_template'
actionpack (6.1.3.2) lib/action_controller/Metal/streaming.rb:218:in `_render_template'
actionview (6.1.3.2) lib/action_view/rendering.rb:103:in `render_to_body'
actionpack (6.1.3.2) lib/action_controller/Metal/rendering.rb:52:in `render_to_body'
actionpack (6.1.3.2) lib/action_controller/Metal/renderers.rb:142:in `render_to_body'
actionpack (6.1.3.2) lib/abstract_controller/rendering.rb:25:in `render'
actionpack (6.1.3.2) lib/action_controller/Metal/rendering.rb:36:in `render'
actionpack (6.1.3.2) lib/action_controller/Metal/instrumentation.rb:46:in `block (2 levels) in render'
/home/taylor/.rvm/rubies/ruby-2.6.1/lib/ruby/2.6.0/benchmark.rb:308:in `realtime'
activesupport (6.1.3.2) lib/active_support/core_ext/benchmark.rb:14:in `ms'
actionpack (6.1.3.2) lib/action_controller/Metal/instrumentation.rb:46:in `block in render'
actionpack (6.1.3.2) lib/action_controller/Metal/instrumentation.rb:86:in `cleanup_view_runtime'
activerecord (6.1.3.2) lib/active_record/railties/controller_runtime.rb:34:in `cleanup_view_runtime'
actionpack (6.1.3.2) lib/action_controller/Metal/instrumentation.rb:45:in `render'
actionpack (6.1.3.2) lib/action_controller/Metal/implicit_render.rb:35:in `default_render'
actionpack (6.1.3.2) lib/action_controller/Metal/basic_implicit_render.rb:6:in `block in send_action'
actionpack (6.1.3.2) lib/action_controller/Metal/basic_implicit_render.rb:6:in `tap'
actionpack (6.1.3.2) lib/action_controller/Metal/basic_implicit_render.rb:6:in `send_action'
actionpack (6.1.3.2) lib/abstract_controller/base.rb:228:in `process_action'
actionpack (6.1.3.2) lib/action_controller/Metal/rendering.rb:30:in `process_action'
actionpack (6.1.3.2) lib/abstract_controller/callbacks.rb:42:in `block in process_action'
activesupport (6.1.3.2) lib/active_support/callbacks.rb:117:in `block in run_callbacks'
actiontext (6.1.3.2) lib/action_text/rendering.rb:20:in `with_renderer'
actiontext (6.1.3.2) lib/action_text/engine.rb:55:in `block (4 levels) in <class:Engine>'
activesupport (6.1.3.2) lib/active_support/callbacks.rb:126:in `instance_exec'
activesupport (6.1.3.2) lib/active_support/callbacks.rb:126:in `block in run_callbacks'
activesupport (6.1.3.2) lib/active_support/callbacks.rb:137:in `run_callbacks'
actionpack (6.1.3.2) lib/abstract_controller/callbacks.rb:41:in `process_action'
actionpack (6.1.3.2) lib/action_controller/Metal/rescue.rb:22:in `process_action'
actionpack (6.1.3.2) lib/action_controller/Metal/instrumentation.rb:34:in `block in process_action'
activesupport (6.1.3.2) lib/active_support/notifications.rb:203:in `block in instrument'
activesupport (6.1.3.2) lib/active_support/notifications/instrumenter.rb:24:in `instrument'
activesupport (6.1.3.2) lib/active_support/notifications.rb:203:in `instrument'
actionpack (6.1.3.2) lib/action_controller/Metal/instrumentation.rb:33:in `process_action'
actionpack (6.1.3.2) lib/action_controller/Metal/params_wrapper.rb:249:in `process_action'
activerecord (6.1.3.2) lib/active_record/railties/controller_runtime.rb:27:in `process_action'
actionpack (6.1.3.2) lib/abstract_controller/base.rb:165:in `process'
actionview (6.1.3.2) lib/action_view/rendering.rb:39:in `process'
actionpack (6.1.3.2) lib/action_controller/Metal.rb:190:in `dispatch'
actionpack (6.1.3.2) lib/action_controller/Metal.rb:254:in `dispatch'
actionpack (6.1.3.2) lib/action_dispatch/routing/route_set.rb:50:in `dispatch'
actionpack (6.1.3.2) lib/action_dispatch/routing/route_set.rb:33:in `serve'
actionpack (6.1.3.2) lib/action_dispatch/journey/router.rb:50:in `block in serve'
actionpack (6.1.3.2) lib/action_dispatch/journey/router.rb:32:in `each'
actionpack (6.1.3.2) lib/action_dispatch/journey/router.rb:32:in `serve'
actionpack (6.1.3.2) lib/action_dispatch/routing/route_set.rb:842:in `call'
rack (2.2.3) lib/rack/tempfile_reaper.rb:15:in `call'
rack (2.2.3) lib/rack/etag.rb:27:in `call'
rack (2.2.3) lib/rack/conditional_get.rb:27:in `call'
rack (2.2.3) lib/rack/head.rb:12:in `call'
actionpack (6.1.3.2) lib/action_dispatch/http/permissions_policy.rb:22:in `call'
actionpack (6.1.3.2) lib/action_dispatch/http/content_security_policy.rb:18:in `call'
rack (2.2.3) lib/rack/session/abstract/id.rb:266:in `context'
rack (2.2.3) lib/rack/session/abstract/id.rb:260:in `call'
actionpack (6.1.3.2) lib/action_dispatch/middleware/cookies.rb:689:in `call'
activerecord (6.1.3.2) lib/active_record/migration.rb:601:in `call'
actionpack (6.1.3.2) lib/action_dispatch/middleware/callbacks.rb:27:in `block in call'
activesupport (6.1.3.2) lib/active_support/callbacks.rb:98:in `run_callbacks'
actionpack (6.1.3.2) lib/action_dispatch/middleware/callbacks.rb:26:in `call'
actionpack (6.1.3.2) lib/action_dispatch/middleware/executor.rb:14:in `call'
actionpack (6.1.3.2) lib/action_dispatch/middleware/actionable_exceptions.rb:18:in `call'
actionpack (6.1.3.2) lib/action_dispatch/middleware/debug_exceptions.rb:29:in `call'
web-console (4.1.0) lib/web_console/middleware.rb:132:in `call_app'
web-console (4.1.0) lib/web_console/middleware.rb:28:in `block in call'
web-console (4.1.0) lib/web_console/middleware.rb:17:in `catch'
web-console (4.1.0) lib/web_console/middleware.rb:17:in `call'
actionpack (6.1.3.2) lib/action_dispatch/middleware/show_exceptions.rb:33:in `call'
railties (6.1.3.2) lib/rails/rack/logger.rb:37:in `call_app'
railties (6.1.3.2) lib/rails/rack/logger.rb:26:in `block in call'
activesupport (6.1.3.2) lib/active_support/tagged_logging.rb:99:in `block in tagged'
activesupport (6.1.3.2) lib/active_support/tagged_logging.rb:37:in `tagged'
activesupport (6.1.3.2) lib/active_support/tagged_logging.rb:99:in `tagged'
railties (6.1.3.2) lib/rails/rack/logger.rb:26:in `call'
sprockets-rails (3.2.2) lib/sprockets/rails/quiet_assets.rb:13:in `call'
actionpack (6.1.3.2) lib/action_dispatch/middleware/remote_ip.rb:81:in `call'
actionpack (6.1.3.2) lib/action_dispatch/middleware/request_id.rb:26:in `call'
rack (2.2.3) lib/rack/method_override.rb:24:in `call'
rack (2.2.3) lib/rack/runtime.rb:22:in `call'
activesupport (6.1.3.2) lib/active_support/cache/strategy/local_cache_middleware.rb:29:in `call'
actionpack (6.1.3.2) lib/action_dispatch/middleware/executor.rb:14:in `call'
actionpack (6.1.3.2) lib/action_dispatch/middleware/static.rb:24:in `call'
rack (2.2.3) lib/rack/sendfile.rb:110:in `call'
actionpack (6.1.3.2) lib/action_dispatch/middleware/host_authorization.rb:98:in `call'
webpacker (5.4.0) lib/webpacker/dev_server_proxy.rb:25:in `perform_request'
rack-proxy (0.6.5) lib/rack/proxy.rb:57:in `call'
railties (6.1.3.2) lib/rails/engine.rb:539:in `call'
puma (5.3.2) lib/puma/configuration.rb:249:in `call'
puma (5.3.2) lib/puma/request.rb:77:in `block in handle_request'
puma (5.3.2) lib/puma/thread_pool.rb:338:in `with_force_shutdown'
puma (5.3.2) lib/puma/request.rb:76:in `handle_request'
puma (5.3.2) lib/puma/server.rb:438:in `process_client'
puma (5.3.2) lib/puma/thread_pool.rb:145:in `block in spawn_thread'
这里是完整的方法：
<%= user_builder.fields_for :team_attributes,[:admin,@team] do |team_builder| %>
<%= team_builder.hidden_field :profile,:value => "profile" %>
<% if @company.teams.all == [] %>
<br><h3>Create a New Team:</h3>
Team Name: <%= team_builder.text_field :name %>
Team Description: <%= team_builder.text_area :description %><br><br>
<% else %>
<% if @show_form == "new-position" %>
Change Team: <%= team_builder.collection_select :id,@company.teams,:id,:name,{:include_blank => true} %>
Or <%= link_to "Create a new Team","/admin/profile/#{@user.id}/edit/new-team-and-new-position" %><br><br>
<% elsif @show_form == "new-team" %>
<% else %>
Change Team: <%= team_builder.collection_select :id,"/admin/profile/#{@user.id}/edit/new-team" %><br><br>
<% end %>
<% end %>
这里抛出错误：
Change Team: <%= team_builder.collection_select :id,{:include_blank => true} %>
我撬了一下，返回了@company 的值和@company.teams 的值：
#<Company:0x00007faf085aa668
id: 1,name: "My Company",industry: "Retail",address: "1546 Jefferson Dr.",city: "Townesville",state: "AA",phone_number: "1232345678",email: "info@info.com",user_id: 1,created_at: Mon,07 Jun 2021 22:31:22.169619000 UTC +00:00,updated_at: Mon,07 Jun 2021 22:31:22.169619000 UTC +00:00>
[#<Team:0x00007faf00375170
id: 2,name: "Marketing",description:
"Develops and implements marketing campaigns from prevIoUsly developed strategies.",company_id: 1,07 Jun 2021 22:52:15.767441000 UTC +00:00,07 Jun 2021 22:52:15.767441000 UTC +00:00>]
这试图创建一个公司团队的下拉列表，具体取决于该公司是否有团队以及用户点击了哪些链接以显示完整表单的部分内容。基本上这个错误阻止了一些实质性的功能和完成这个应用程序的进展。如果有人需要更多信息来帮助，请告诉我。感谢您的帮助。
解决方法
解决了：/当原始 form_for 已经命名空间时，我不需要在 fields_for 中命名@teams。不要去快的人哈哈