Rails 4允许嵌套属性不会创建/更新

我将我的rails应用程序（-v3.2.13）转换为rails 4.我使用继承的资源gem的覆盖操作（create！和update！）。参数，但它不创建/更新嵌套属性。我需要允许参数的整个散列。当我尝试时，我得到以下错误。帮助我解决这个问题。Rails 4允许嵌套属性不会创建/更新

PARAMS

 
{"foo"=>{"name"=>"[email protected]", "detail"=>"123", foo1_attributes"=>{"0"=>{"_destroy"=>"", "name"=>"John", "url"=>"johnsmith.blogspot.com",foo2_attributes"=>{"0"=>{"min_time"=>"0", "max_entry"=>"340"}}, "foo3_attributes"=>{"_destroy"=>"", "hours"=>"01", "minutes"=>"00"}, "status"=>"ACTIVE"}}, "foo4_attributes"=>{"0"=>{"image"=>"0","id"=>"1097"}}}, "commit"=>"Save", "foo_id"=>"13", "id"=>"1467"}

我控制器

def update 
update! do |success, failure| 
    success.html { redirect_to foo_path } 
end 
end 

protected 

def resource_params 
params.permit! 
end

富型号

跟踪：

Completed 500 Internal Server Error in 3686ms 

ArgumentError (wrong number of arguments (6 for 1..2)): 
    app/controllers/foo_controller.rb:160:in `update' 

protected_attributes (1.0.3) lib/active_record/mass_assignment_security/persistence.rb:60:in `update_attributes' 
inherited_resources (1.3.1) lib/inherited_resources/base_helpers.rb:78:in `update_resource' 
inherited_resources (1.3.1) lib/inherited_resources/actions.rb:45:in `update' 
app/controllers/partner_modules_controller.rb:160:in `update' 
actionpack (4.0.0) lib/action_controller/metal/implicit_render.rb:4:in `send_action' 
actionpack (4.0.0) lib/abstract_controller/base.rb:189:in `process_action' 
actionpack (4.0.0) lib/action_controller/metal/rendering.rb:10:in `process_action' 
actionpack (4.0.0) lib/abstract_controller/callbacks.rb:18:in `block in process_action' 
activesupport (4.0.0) lib/active_support/callbacks.rb:445:in `block (2 levels) in _run__2668227825050344147__process_action__callbacks' 
activesupport (4.0.0) lib/active_support/callbacks.rb:212:in `block in _conditional_callback_around_4134' 
rails-observers (0.1.2) lib/rails/observers/action_controller/caching/sweeping.rb:73:in `around' 
activesupport (4.0.0) lib/active_support/callbacks.rb:283:in `_callback_around_4133' 
activesupport (4.0.0) lib/active_support/callbacks.rb:211:in `_conditional_callback_around_4134' 
activesupport (4.0.0) lib/active_support/callbacks.rb:444:in `block in _run__2668227825050344147__process_action__callbacks' 
activesupport (4.0.0) lib/active_support/callbacks.rb:215:in `_conditional_callback_around_4135' 
activesupport (4.0.0) lib/active_support/callbacks.rb:443:in `_run__2668227825050344147__process_action__callbacks' 
activesupport (4.0.0) lib/active_support/callbacks.rb:80:in `run_callbacks' 
actionpack (4.0.0) lib/abstract_controller/callbacks.rb:17:in `process_action' 
actionpack (4.0.0) lib/action_controller/metal/rescue.rb:29:in `process_action' 
actionpack (4.0.0) lib/action_controller/metal/instrumentation.rb:31:in `block in process_action' 
activesupport (4.0.0) lib/active_support/notifications.rb:159:in `block in instrument' 
activesupport (4.0.0) lib/active_support/notifications/instrumenter.rb:20:in `instrument' 
activesupport (4.0.0) lib/active_support/notifications.rb:159:in `instrument' 
actionpack (4.0.0) lib/action_controller/metal/instrumentation.rb:30:in `process_action' 
actionpack (4.0.0) lib/action_controller/metal/params_wrapper.rb:245:in `process_action' 
activerecord (4.0.0) lib/active_record/railties/controller_runtime.rb:18:in `process_action' 
actionpack (4.0.0) lib/abstract_controller/base.rb:136:in `process' 
actionpack (4.0.0) lib/abstract_controller/rendering.rb:44:in `process' 
actionpack (4.0.0) lib/action_controller/metal.rb:195:in `dispatch' 
actionpack (4.0.0) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch' 
actionpack (4.0.0) lib/action_controller/metal.rb:231:in `block in action' 
actionpack (4.0.0) lib/action_dispatch/routing/route_set.rb:80:in `call' 
actionpack (4.0.0) lib/action_dispatch/routing/route_set.rb:80:in `dispatch' 
actionpack (4.0.0) lib/action_dispatch/routing/route_set.rb:48:in `call' 
actionpack (4.0.0) lib/action_dispatch/journey/router.rb:71:in `block in call' 
actionpack (4.0.0) lib/action_dispatch/journey/router.rb:59:in `each' 
actionpack (4.0.0) lib/action_dispatch/journey/router.rb:59:in `call' 
actionpack (4.0.0) lib/action_dispatch/routing/route_set.rb:655:in `call' 
newrelic_rpm (3.6.6.147) lib/new_relic/rack/error_collector.rb:43:in `call' 
bullet (4.6.0) lib/bullet/rack.rb:13:in `call' 
newrelic_rpm (3.6.6.147) lib/new_relic/rack/error_collector.rb:43:in `call' 
newrelic_rpm (3.6.6.147) lib/new_relic/rack/agent_hooks.rb:22:in `call' 
newrelic_rpm (3.6.6.147) lib/new_relic/rack/browser_monitoring.rb:16:in `call' 
warden (1.2.3) lib/warden/manager.rb:35:in `block in call' 
warden (1.2.3) lib/warden/manager.rb:34:in `catch' 
warden (1.2.3) lib/warden/manager.rb:34:in `call' 
rack (1.5.2) lib/rack/etag.rb:23:in `call' 
rack (1.5.2) lib/rack/conditionalget.rb:35:in `call' 
rack (1.5.2) lib/rack/head.rb:11:in `call' 
remotipart (1.2.1) lib/remotipart/middleware.rb:27:in `call' 
actionpack (4.0.0) lib/action_dispatch/middleware/params_parser.rb:27:in `call' 
actionpack (4.0.0) lib/action_dispatch/middleware/flash.rb:241:in `call' 
rack (1.5.2) lib/rack/session/abstract/id.rb:225:in `context' 
rack (1.5.2) lib/rack/session/abstract/id.rb:220:in `call' 
actionpack (4.0.0) lib/action_dispatch/middleware/cookies.rb:486:in `call' 
activerecord (4.0.0) lib/active_record/query_cache.rb:36:in `call' 
activerecord (4.0.0) lib/active_record/connection_adapters/abstract/connection_pool.rb:626:in `call' 
actionpack (4.0.0) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call' 
activesupport (4.0.0) lib/active_support/callbacks.rb:373:in `_run__994999873434308059__call__callbacks' 
activesupport (4.0.0) lib/active_support/callbacks.rb:80:in `run_callbacks' 
actionpack (4.0.0) lib/action_dispatch/middleware/callbacks.rb:27:in `call' 
actionpack (4.0.0) lib/action_dispatch/middleware/reloader.rb:64:in `call' 
actionpack (4.0.0) lib/action_dispatch/middleware/remote_ip.rb:76:in `call' 
actionpack (4.0.0) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call' 
actionpack (4.0.0) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call' 
railties (4.0.0) lib/rails/rack/logger.rb:38:in `call_app' 
railties (4.0.0) lib/rails/rack/logger.rb:21:in `block in call' 
activesupport (4.0.0) lib/active_support/tagged_logging.rb:67:in `block in tagged' 
activesupport (4.0.0) lib/active_support/tagged_logging.rb:25:in `tagged' 
activesupport (4.0.0) lib/active_support/tagged_logging.rb:67:in `tagged' 
railties (4.0.0) lib/rails/rack/logger.rb:21:in `call' 
quiet_assets (1.0.2) lib/quiet_assets.rb:18:in `call_with_quiet_assets' 
actionpack (4.0.0) lib/action_dispatch/middleware/request_id.rb:21:in `call' 
rack (1.5.2) lib/rack/methodoverride.rb:21:in `call' 
rack (1.5.2) lib/rack/runtime.rb:17:in `call' 
rack (1.5.2) lib/rack/lock.rb:17:in `call' 
actionpack (4.0.0) lib/action_dispatch/middleware/static.rb:64:in `call' 
railties (4.0.0) lib/rails/engine.rb:511:in `call' 
railties (4.0.0) lib/rails/application.rb:97:in `call' 
rack (1.5.2) lib/rack/content_length.rb:14:in `call' 
thin (1.5.1) lib/thin/connection.rb:81:in `block in pre_process' 
thin (1.5.1) lib/thin/connection.rb:79:in `catch' 
thin (1.5.1) lib/thin/connection.rb:79:in `pre_process' 
thin (1.5.1) lib/thin/connection.rb:54:in `process' 
thin (1.5.1) lib/thin/connection.rb:39:in `receive_data' 
eventmachine (1.0.3) lib/eventmachine.rb:187:in `run_machine' 
eventmachine (1.0.3) lib/eventmachine.rb:187:in `run' 
thin (1.5.1) lib/thin/backends/base.rb:63:in `start' 
thin (1.5.1) lib/thin/server.rb:159:in `start' 
rack (1.5.2) lib/rack/handler/thin.rb:16:in `run' 
rack (1.5.2) lib/rack/server.rb:264:in `start' 
railties (4.0.0) lib/rails/commands/server.rb:84:in `start' 
railties (4.0.0) lib/rails/commands.rb:78:in `block in <top (required)>' 
railties (4.0.0) lib/rails/commands.rb:73:in `tap' 
railties (4.0.0) lib/rails/commands.rb:73:in `<top (required)>' 
script/rails:6:in `require' 
script/rails:6:in `<main>'

来源

2013-08-19 Mano

'params.require（：富）.permit（：attr_of_foo，：another_attr_of_foo，：foo1_attributes => [：attr_of_foo1，：more_attr_of_foo1] ，等等）'不适合你？ – j03w

@ jo3w是的，我尝试了'params.requir（：foo）.permit（：name，：detail，foo1_attributes：[：name，：url]）'，但是我错误的参数数量错误。我需要允许整个散列。我在这里丢失了什么？ – Mano

可能的重复http://stackoverflow.com/questions/17371334/how-is-attr-accessible-used-in-rails-4/17371364#17371364 –

正如Strong Parameters README所述，您可以使用permit!方法添加到白名单参数的整个哈希如下：

params.require(:foo).permit!

请记住从链接的README文件中，以下报价执行此操作时：

使用许可证时应特别小心！因为它将允许所有当前和未来的模型属性被批量分配。

来源

2013-08-19 07:27:06 vee

它不起作用。即使我得到错误的数量的arumeuments错误。 – Mano

当发生此错误时，您可以在问题中发布完整跟踪吗？ – vee

@Mano，是吗？应该有更多，因为我没有看到你正在谈论的错误。 – vee

我相信你的resource_params方法应该叫permitted_params。有关如何处理强参数的更多详细信息，请参见the Inherited Resources documentation。

来源

2013-09-09 17:26:58

我改变了方法名称，因为你说。它不起作用。 – Mano

本替换当前的强劲PARAMS：

def permitted_params 
    params.permit(:widget => [:permitted_field, :other_permitted_field]) 
end

更多信息：

来源

2013-10-03 16:44:19

我不认为这是相关的错误强烈的参数。在Rails 4.0中，如果一个参数没有列入白名单，它会自动失败并且不会创建该对象。我曾经有过这个错误，我不知道如何解决它，但是你可以发布你的routes.rb文件，并在你的控制器中包含新的和创建的方法？我很确定你的错误是在你的资源嵌套。

来源

2013-11-01 16:58:42

嗨，你必须使用这种方式：

params.require(:foo).permit( :name, :details, foo1_attributes: [ :_destroy, :name, :url, :id ], foo2_attributes: [ :_destroy, :min_time, :max_entry, :id ] )

它可能会解决你的问题。

来源

2013-11-04 07:19:30 Akshat

这里记住，创建时不需要嵌套属性的id，但是在更新嵌套属性时它是强制性的，否则它会为你创建一个新的副本。这就是为什么我在嵌套属性允许字段中添加id字段 – Akshat

我遇到了类似的问题。尝试执行以下操作。假设你需要更新foo1。使用这个强大的参数。

def foo_params 
    params.require(:foo).permit(:foo1_attributes => [:bar1 , :bar2]) 
end

更新通过。

def update 
    if @foo.update_attributes!(foo_params)  
    redirect_to foo_path 
    else 
    render foo1_edit_path 
    end 
end

来源

2013-12-14 08:39:17 xvidun

这可能有点晚，但我自己只是面对这个。希望它能在一段时间内拯救别人。

使用Rails 4.2。1

与这里的其他答案的问题是，有对的foo1_attributes的价值array他们没有考虑到：

（扩大从OP例子）

foo1_attributes"=> { 
    "0"=> { 
    "_destroy"=>"", "name"=>"John", "url"=>"johnsmith.blogspot.com" 
    } 
}

正因为如此，你需要permit都foo1_attributes和foo1_attributes[n]

下面是我在我的项目成功implimented类似的功能：

（格式化以上OP的〔实施例）

def resource_params 
    params.require(:foo) 
    .permit(
     :id, 
     :name, 
     :detail, 

     # has_many: :foo1s (Nested Attributes) 
     { foo1_attributes: [ 
      # and the values for each `foo1` in `foo1_attributes` 
      [ 
      :name, 
      :url 
      ] 
     ]}, 

     # has_many: :foo2s (Nested Attributes) 
     { foo2_attributes: [ 
      # and the values for each `foo2` in `foo2_attributes` 
      [ 
      :min_time, 
      :max_entry 
      ] 
     ]} 

     # etc... 
    )

其他一些要注意的事情......

The code for nested attributes which are arrays may need to be placed at the end of the permit
Depending on your implementation, you may need to also include the id for each (see the top rated comment for this answer)
我的具体实施涉及has_many :through
您还需要包括:_destroy如果您打算将它们删除

来源

2015-07-07 16:34:19

Rails 4允许嵌套属性不会创建/更新

回答

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