rails 4，ajax partial view返回“gsub”错误？

时间：2016-08-30 11:38:24

标签： ruby-on-rails ruby ruby-on-rails-3 ruby-on-rails-4

我在我的表单中有一个下拉选择，当我更改我的下拉选择时，我触发一个带脚本响应的ajax函数， 我的目标是动态加载div以根据我的下拉列表显示一些html，如“checkbox”和“image”标签，所以我这样做：

我的js：

 $(document).ready(function() 
     {


          $('#apartements_select').change(function() {



                  $.ajax({
                          url: "/units/getfloorplans",
                          data: {
                            apt_id : $('#apartements_select').val()
                          },
                          dataType: "script"
                        });


          });

    });

我的控制器“units / getfloorplans”

 def getfloorplans

    floorplan = Floorplan.where(:apt_id => params[:apt_id])

    @imgs = floorplan
  end

我原来的部分js文件

alert("wei");

$('#divUnitplan').append("<%= escape_javascript( @imgs.each{|i| image_tag i.floorplanphoto.thumb.url}  ) %>
                        ");

我已将我的js文件更改为

$('#divUnitplan').append("<%= escape_javascript( @imgs.each{|i| puts image_tag i.floorplanphoto.thumb.url}  ) %>
                        ");

我的部分js文件被调用，但不知何故我得到了一个错误

这是我最新的错误跟踪：

NoMethodError in Units#getfloorplans

Showing C:/Users/lenovo/Documents/urbanace/urbanacecode/app/views/units/getfloorplans.js.erb where line #5 raised:
undefined method `gsub' for [#<Floorplan id: 96, floorplanphoto: "Desert.jpg">]:Array

Rails.root: C:/Users/lenovo/Documents/urbanace/urbanacecode

Application Trace
app/views/units/getfloorplans.js.erb:5:in `_app_views_units_getfloorplans_js_erb__484712465_176560632'

Framework Trace
actionview (4.2.7) lib/action_view/helpers/javascript_helper.rb:27:in `escape_javascript'
actionview (4.2.7) lib/action_view/template.rb:145:in `block in render'
activesupport (4.2.7) lib/active_support/notifications.rb:166:in `instrument'
actionview (4.2.7) lib/action_view/template.rb:333:in `instrument'
actionview (4.2.7) lib/action_view/template.rb:143:in `render'
actionview (4.2.7) lib/action_view/renderer/template_renderer.rb:54:in `block (2 levels) in render_template'
actionview (4.2.7) lib/action_view/renderer/abstract_renderer.rb:39:in `block in instrument'
activesupport (4.2.7) lib/active_support/notifications.rb:164:in `block in instrument'
activesupport (4.2.7) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (4.2.7) lib/active_support/notifications.rb:164:in `instrument'
actionview (4.2.7) lib/action_view/renderer/abstract_renderer.rb:39:in `instrument'
actionview (4.2.7) lib/action_view/renderer/template_renderer.rb:53:in `block in render_template'
actionview (4.2.7) lib/action_view/renderer/template_renderer.rb:61:in `render_with_layout'
actionview (4.2.7) lib/action_view/renderer/template_renderer.rb:52:in `render_template'
actionview (4.2.7) lib/action_view/renderer/template_renderer.rb:14:in `render'
actionview (4.2.7) lib/action_view/renderer/renderer.rb:46:in `render_template'
actionview (4.2.7) lib/action_view/renderer/renderer.rb:27:in `render'
actionview (4.2.7) lib/action_view/rendering.rb:100:in `_render_template'
actionpack (4.2.7) lib/action_controller/metal/streaming.rb:217:in `_render_template'
actionview (4.2.7) lib/action_view/rendering.rb:83:in `render_to_body'
actionpack (4.2.7) lib/action_controller/metal/rendering.rb:32:in `render_to_body'
actionpack (4.2.7) lib/action_controller/metal/renderers.rb:37:in `render_to_body'
actionpack (4.2.7) lib/abstract_controller/rendering.rb:25:in `render'
actionpack (4.2.7) lib/action_controller/metal/rendering.rb:16:in `render'
actionpack (4.2.7) lib/action_controller/metal/instrumentation.rb:44:in `block (2 levels) in render'
activesupport (4.2.7) lib/active_support/core_ext/benchmark.rb:12:in `block in ms'
C:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/benchmark.rb:303:in `realtime'
activesupport (4.2.7) lib/active_support/core_ext/benchmark.rb:12:in `ms'
actionpack (4.2.7) lib/action_controller/metal/instrumentation.rb:44:in `block in render'
actionpack (4.2.7) lib/action_controller/metal/instrumentation.rb:87:in `cleanup_view_runtime'
activerecord (4.2.7) lib/active_record/railties/controller_runtime.rb:25:in `cleanup_view_runtime'
actionpack (4.2.7) lib/action_controller/metal/instrumentation.rb:43:in `render'
remotipart (1.2.1) lib/remotipart/render_overrides.rb:14:in `render_with_remotipart'
actionpack (4.2.7) lib/action_controller/metal/implicit_render.rb:10:in `default_render'
actionpack (4.2.7) lib/action_controller/metal/implicit_render.rb:5:in `send_action'
actionpack (4.2.7) lib/abstract_controller/base.rb:198:in `process_action'
actionpack (4.2.7) lib/action_controller/metal/rendering.rb:10:in `process_action'
actionpack (4.2.7) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
activesupport (4.2.7) lib/active_support/callbacks.rb:117:in `call'
activesupport (4.2.7) lib/active_support/callbacks.rb:117:in `call'
activesupport (4.2.7) lib/active_support/callbacks.rb:555:in `block (2 levels) in compile'
activesupport (4.2.7) lib/active_support/callbacks.rb:505:in `call'
activesupport (4.2.7) lib/active_support/callbacks.rb:505:in `call'
activesupport (4.2.7) lib/active_support/callbacks.rb:92:in `__run_callbacks__'
activesupport (4.2.7) lib/active_support/callbacks.rb:778:in `_run_process_action_callbacks'
activesupport (4.2.7) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (4.2.7) lib/abstract_controller/callbacks.rb:19:in `process_action'
actionpack (4.2.7) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (4.2.7) lib/action_controller/metal/instrumentation.rb:32:in `block in process_action'
activesupport (4.2.7) lib/active_support/notifications.rb:164:in `block in instrument'
activesupport (4.2.7) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (4.2.7) lib/active_support/notifications.rb:164:in `instrument'
actionpack (4.2.7) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
actionpack (4.2.7) lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
activerecord (4.2.7) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (4.2.7) lib/abstract_controller/base.rb:137:in `process'
actionview (4.2.7) lib/action_view/rendering.rb:30:in `process'
actionpack (4.2.7) lib/action_controller/metal.rb:196:in `dispatch'
actionpack (4.2.7) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
actionpack (4.2.7) lib/action_controller/metal.rb:237:in `block in action'
actionpack (4.2.7) lib/action_dispatch/routing/route_set.rb:74:in `call'
actionpack (4.2.7) lib/action_dispatch/routing/route_set.rb:74:in `dispatch'
actionpack (4.2.7) lib/action_dispatch/routing/route_set.rb:43:in `serve'
actionpack (4.2.7) lib/action_dispatch/journey/router.rb:43:in `block in serve'
actionpack (4.2.7) lib/action_dispatch/journey/router.rb:30:in `each'
actionpack (4.2.7) lib/action_dispatch/journey/router.rb:30:in `serve'
actionpack (4.2.7) lib/action_dispatch/routing/route_set.rb:817:in `call'
rack (1.6.4) lib/rack/etag.rb:24:in `call'
rack (1.6.4) lib/rack/conditionalget.rb:25:in `call'
rack (1.6.4) lib/rack/head.rb:13:in `call'
remotipart (1.2.1) lib/remotipart/middleware.rb:27:in `call'
actionpack (4.2.7) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
actionpack (4.2.7) lib/action_dispatch/middleware/flash.rb:260:in `call'
rack (1.6.4) lib/rack/session/abstract/id.rb:225:in `context'
rack (1.6.4) lib/rack/session/abstract/id.rb:220:in `call'
actionpack (4.2.7) lib/action_dispatch/middleware/cookies.rb:560:in `call'
activerecord (4.2.7) lib/active_record/query_cache.rb:36:in `call'
activerecord (4.2.7) lib/active_record/connection_adapters/abstract/connection_pool.rb:653:in `call'
activerecord (4.2.7) lib/active_record/migration.rb:377:in `call'
actionpack (4.2.7) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
activesupport (4.2.7) lib/active_support/callbacks.rb:88:in `__run_callbacks__'
activesupport (4.2.7) lib/active_support/callbacks.rb:778:in `_run_call_callbacks'
activesupport (4.2.7) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (4.2.7) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (4.2.7) lib/action_dispatch/middleware/reloader.rb:73:in `call'
actionpack (4.2.7) lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
actionpack (4.2.7) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
web-console (2.3.0) lib/web_console/middleware.rb:28:in `block in call'
web-console (2.3.0) lib/web_console/middleware.rb:18:in `catch'
web-console (2.3.0) lib/web_console/middleware.rb:18:in `call'
actionpack (4.2.7) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
railties (4.2.7) lib/rails/rack/logger.rb:38:in `call_app'
railties (4.2.7) lib/rails/rack/logger.rb:20:in `block in call'
activesupport (4.2.7) lib/active_support/tagged_logging.rb:68:in `block in tagged'
activesupport (4.2.7) lib/active_support/tagged_logging.rb:26:in `tagged'
activesupport (4.2.7) lib/active_support/tagged_logging.rb:68:in `tagged'
railties (4.2.7) lib/rails/rack/logger.rb:20:in `call'
actionpack (4.2.7) lib/action_dispatch/middleware/request_id.rb:21:in `call'
rack (1.6.4) lib/rack/methodoverride.rb:22:in `call'
rack (1.6.4) lib/rack/runtime.rb:18:in `call'
activesupport (4.2.7) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
rack (1.6.4) lib/rack/lock.rb:17:in `call'
actionpack (4.2.7) lib/action_dispatch/middleware/static.rb:120:in `call'
rack (1.6.4) lib/rack/sendfile.rb:113:in `call'
railties (4.2.7) lib/rails/engine.rb:518:in `call'
railties (4.2.7) lib/rails/application.rb:165:in `call'
rack (1.6.4) lib/rack/lock.rb:17:in `call'
rack (1.6.4) lib/rack/content_length.rb:15:in `call'
rack (1.6.4) lib/rack/handler/webrick.rb:88:in `service'
C:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/webrick/httpserver.rb:138:in `service'
C:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/webrick/httpserver.rb:94:in `run'
C:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/webrick/server.rb:294:in `block in start_thread'

Full Trace
actionview (4.2.7) lib/action_view/helpers/javascript_helper.rb:27:in `escape_javascript'
app/views/units/getfloorplans.js.erb:5:in `_app_views_units_getfloorplans_js_erb__484712465_176560632'
actionview (4.2.7) lib/action_view/template.rb:145:in `block in render'
activesupport (4.2.7) lib/active_support/notifications.rb:166:in `instrument'
actionview (4.2.7) lib/action_view/template.rb:333:in `instrument'
actionview (4.2.7) lib/action_view/template.rb:143:in `render'
actionview (4.2.7) lib/action_view/renderer/template_renderer.rb:54:in `block (2 levels) in render_template'
actionview (4.2.7) lib/action_view/renderer/abstract_renderer.rb:39:in `block in instrument'
activesupport (4.2.7) lib/active_support/notifications.rb:164:in `block in instrument'
activesupport (4.2.7) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (4.2.7) lib/active_support/notifications.rb:164:in `instrument'
actionview (4.2.7) lib/action_view/renderer/abstract_renderer.rb:39:in `instrument'
actionview (4.2.7) lib/action_view/renderer/template_renderer.rb:53:in `block in render_template'
actionview (4.2.7) lib/action_view/renderer/template_renderer.rb:61:in `render_with_layout'
actionview (4.2.7) lib/action_view/renderer/template_renderer.rb:52:in `render_template'
actionview (4.2.7) lib/action_view/renderer/template_renderer.rb:14:in `render'
actionview (4.2.7) lib/action_view/renderer/renderer.rb:46:in `render_template'
actionview (4.2.7) lib/action_view/renderer/renderer.rb:27:in `render'
actionview (4.2.7) lib/action_view/rendering.rb:100:in `_render_template'
actionpack (4.2.7) lib/action_controller/metal/streaming.rb:217:in `_render_template'
actionview (4.2.7) lib/action_view/rendering.rb:83:in `render_to_body'
actionpack (4.2.7) lib/action_controller/metal/rendering.rb:32:in `render_to_body'
actionpack (4.2.7) lib/action_controller/metal/renderers.rb:37:in `render_to_body'
actionpack (4.2.7) lib/abstract_controller/rendering.rb:25:in `render'
actionpack (4.2.7) lib/action_controller/metal/rendering.rb:16:in `render'
actionpack (4.2.7) lib/action_controller/metal/instrumentation.rb:44:in `block (2 levels) in render'
activesupport (4.2.7) lib/active_support/core_ext/benchmark.rb:12:in `block in ms'
C:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/benchmark.rb:303:in `realtime'
activesupport (4.2.7) lib/active_support/core_ext/benchmark.rb:12:in `ms'
actionpack (4.2.7) lib/action_controller/metal/instrumentation.rb:44:in `block in render'
actionpack (4.2.7) lib/action_controller/metal/instrumentation.rb:87:in `cleanup_view_runtime'
activerecord (4.2.7) lib/active_record/railties/controller_runtime.rb:25:in `cleanup_view_runtime'
actionpack (4.2.7) lib/action_controller/metal/instrumentation.rb:43:in `render'
remotipart (1.2.1) lib/remotipart/render_overrides.rb:14:in `render_with_remotipart'
actionpack (4.2.7) lib/action_controller/metal/implicit_render.rb:10:in `default_render'
actionpack (4.2.7) lib/action_controller/metal/implicit_render.rb:5:in `send_action'
actionpack (4.2.7) lib/abstract_controller/base.rb:198:in `process_action'
actionpack (4.2.7) lib/action_controller/metal/rendering.rb:10:in `process_action'
actionpack (4.2.7) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
activesupport (4.2.7) lib/active_support/callbacks.rb:117:in `call'
activesupport (4.2.7) lib/active_support/callbacks.rb:117:in `call'
activesupport (4.2.7) lib/active_support/callbacks.rb:555:in `block (2 levels) in compile'
activesupport (4.2.7) lib/active_support/callbacks.rb:505:in `call'
activesupport (4.2.7) lib/active_support/callbacks.rb:505:in `call'
activesupport (4.2.7) lib/active_support/callbacks.rb:92:in `__run_callbacks__'
activesupport (4.2.7) lib/active_support/callbacks.rb:778:in `_run_process_action_callbacks'
activesupport (4.2.7) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (4.2.7) lib/abstract_controller/callbacks.rb:19:in `process_action'
actionpack (4.2.7) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (4.2.7) lib/action_controller/metal/instrumentation.rb:32:in `block in process_action'
activesupport (4.2.7) lib/active_support/notifications.rb:164:in `block in instrument'
activesupport (4.2.7) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (4.2.7) lib/active_support/notifications.rb:164:in `instrument'
actionpack (4.2.7) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
actionpack (4.2.7) lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
activerecord (4.2.7) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (4.2.7) lib/abstract_controller/base.rb:137:in `process'
actionview (4.2.7) lib/action_view/rendering.rb:30:in `process'
actionpack (4.2.7) lib/action_controller/metal.rb:196:in `dispatch'
actionpack (4.2.7) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
actionpack (4.2.7) lib/action_controller/metal.rb:237:in `block in action'
actionpack (4.2.7) lib/action_dispatch/routing/route_set.rb:74:in `call'
actionpack (4.2.7) lib/action_dispatch/routing/route_set.rb:74:in `dispatch'
actionpack (4.2.7) lib/action_dispatch/routing/route_set.rb:43:in `serve'
actionpack (4.2.7) lib/action_dispatch/journey/router.rb:43:in `block in serve'
actionpack (4.2.7) lib/action_dispatch/journey/router.rb:30:in `each'
actionpack (4.2.7) lib/action_dispatch/journey/router.rb:30:in `serve'
actionpack (4.2.7) lib/action_dispatch/routing/route_set.rb:817:in `call'
rack (1.6.4) lib/rack/etag.rb:24:in `call'
rack (1.6.4) lib/rack/conditionalget.rb:25:in `call'
rack (1.6.4) lib/rack/head.rb:13:in `call'
remotipart (1.2.1) lib/remotipart/middleware.rb:27:in `call'
actionpack (4.2.7) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
actionpack (4.2.7) lib/action_dispatch/middleware/flash.rb:260:in `call'
rack (1.6.4) lib/rack/session/abstract/id.rb:225:in `context'
rack (1.6.4) lib/rack/session/abstract/id.rb:220:in `call'
actionpack (4.2.7) lib/action_dispatch/middleware/cookies.rb:560:in `call'
activerecord (4.2.7) lib/active_record/query_cache.rb:36:in `call'
activerecord (4.2.7) lib/active_record/connection_adapters/abstract/connection_pool.rb:653:in `call'
activerecord (4.2.7) lib/active_record/migration.rb:377:in `call'
actionpack (4.2.7) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
activesupport (4.2.7) lib/active_support/callbacks.rb:88:in `__run_callbacks__'
activesupport (4.2.7) lib/active_support/callbacks.rb:778:in `_run_call_callbacks'
activesupport (4.2.7) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (4.2.7) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (4.2.7) lib/action_dispatch/middleware/reloader.rb:73:in `call'
actionpack (4.2.7) lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
actionpack (4.2.7) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
web-console (2.3.0) lib/web_console/middleware.rb:28:in `block in call'
web-console (2.3.0) lib/web_console/middleware.rb:18:in `catch'
web-console (2.3.0) lib/web_console/middleware.rb:18:in `call'
actionpack (4.2.7) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
railties (4.2.7) lib/rails/rack/logger.rb:38:in `call_app'
railties (4.2.7) lib/rails/rack/logger.rb:20:in `block in call'
activesupport (4.2.7) lib/active_support/tagged_logging.rb:68:in `block in tagged'
activesupport (4.2.7) lib/active_support/tagged_logging.rb:26:in `tagged'
activesupport (4.2.7) lib/active_support/tagged_logging.rb:68:in `tagged'
railties (4.2.7) lib/rails/rack/logger.rb:20:in `call'
actionpack (4.2.7) lib/action_dispatch/middleware/request_id.rb:21:in `call'
rack (1.6.4) lib/rack/methodoverride.rb:22:in `call'
rack (1.6.4) lib/rack/runtime.rb:18:in `call'
activesupport (4.2.7) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
rack (1.6.4) lib/rack/lock.rb:17:in `call'
actionpack (4.2.7) lib/action_dispatch/middleware/static.rb:120:in `call'
rack (1.6.4) lib/rack/sendfile.rb:113:in `call'
railties (4.2.7) lib/rails/engine.rb:518:in `call'
railties (4.2.7) lib/rails/application.rb:165:in `call'
rack (1.6.4) lib/rack/lock.rb:17:in `call'
rack (1.6.4) lib/rack/content_length.rb:15:in `call'
rack (1.6.4) lib/rack/handler/webrick.rb:88:in `service'
C:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/webrick/httpserver.rb:138:in `service'
C:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/webrick/httpserver.rb:94:in `run'
C:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/webrick/server.rb:294:in `block in start_thread'



Request parameters
{"apt_id"=>"122",
 "_"=>"1472560007787"}

Session dump
_csrf_token: "xxxx="
session_id: "xxx"

Env dump
GATEWAY_INTERFACE: "CGI/1.1"
HTTP_ACCEPT: "text/javascript, application/javascript, application/ecmascript, application/x-ecmascript, */*; q=0.01"
HTTP_ACCEPT_ENCODING: "gzip, deflate, sdch"
HTTP_ACCEPT_LANGUAGE: "en-US,en;q=0.8"
REMOTE_ADDR: "127.0.0.1"
REMOTE_HOST: "127.0.0.1"
SERVER_NAME: "localhost"
SERVER_PROTOCOL: "HTTP/1.1"

Response headers
None

作为@katafrakt回答，我将我的js文件更新为

$('#divUnitplan').append("<%= escape_javascript(@imgs.map{|i| image_tag i.floorplanphoto.thumb.url}.join) %>");

这是我最新的回复：

$('#divUnitplan').append("


                                &lt;img src=\&quot;/uploads/floorplan/floorplanphoto/96/thumb_Desert.jpg\&quot; alt=\&quot;Thumb desert\&quot; /&gt;
                        ");

我真的不知道出了什么问题，需要一些帮助才能让它发挥作用。

哦，顺便说一下，如果你有更好的解决方案，我真的很开心，请提供一个例子。非常感谢

1 个答案:

答案 0 :(得分：3)

您正在使用模型数组作为参数调用escape_javascript（each返回一个数组）。但是，escape_javascript旨在以字符串作为参数运行。

我认为你需要的是：

<%= escape_javascript(@imgs.map{|i| image_tag i.floorplanphoto.thumb.url}.join) %>
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