我将rails应用程序（-v3.2.13）转换为rails 4.I使用继承资源gem的覆盖操作（创建！并更新！）。我允许参数的整个哈希值，但它不会创建/更新嵌套属性。我需要允许参数的整个哈希。当我尝试时，我收到以下错误。帮我解决这个问题。
PARAMS
{"foo"=>{"name"=>"1@1", "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"}
我的控制器
def update
update! do |success, failure|
success.html { redirect_to foo_path }
end
end
protected
def resource_params
params.permit!
end
Foo模型
accepts_nested_attributes_for : foo1,foo2,foo3,foo4
has_many :foo1
has_many :foo2
has_many :foo3
has_many :foo4
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>'
答案 0 :(得分：6)
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。使用它来获得强大的参数。
def foo_params
params.require(:foo).permit(:foo1_attributes => [:bar1 , :bar2])
end
请按照更新。
def update
if @foo.update_attributes!(foo_params)
redirect_to foo_path
else
render foo1_edit_path
end
end
答案 1 :(得分：5)
嗨，你必须这样使用它：
params.require( :foo ).permit(
:name, :details,
foo1_attributes: [ :_destroy, :name, :url, :id ],
foo2_attributes: [ :_destroy, :min_time, :max_entry, :id ]
)
它可以解决您的问题。
答案 2 :(得分：4)
如Strong Parameters README中所述，您可以使用permit!方法将整个参数哈希列入白名单，如下所示：
params.require(:foo).permit!
在执行此操作时，请记住以下链接的README文档：
使用许可证时应格外小心！因为它将允许所有当前和未来的模型属性进行质量分配。
答案 3 :(得分：4)
这可能有点晚了，但我自己也只是面对这个问题。希望它能节省一些时间。
使用Rails 4.2.1
此处其他答案的问题在于，他们没有考虑到array的值foo1_attributes：
（来自OP的扩展示例）
foo1_attributes"=> {
"0"=> {
"_destroy"=>"", "name"=>"John", "url"=>"johnsmith.blogspot.com"
}
}
因此，您需要permit foo1_attributes和foo1_attributes[n]
以下是我在项目中成功实现类似功能的方法：
（形成OP以上的例子）
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...
)
其他一些注意事项......
permit id for each (see the top rated comment for this answer) has_many :through :_destroy，还需要包含Uncaught java.lang.ClassCastException Impl.java:99
(anonymous function) @ Impl.java:99
gwtOnLoad @ oldstar-0.js:87303
(anonymous function) @ ClassLiteralHolder.java:23
答案 4 :(得分：1)
用这个替换你当前强大的参数：
def permitted_params
params.permit(:widget => [:permitted_field, :other_permitted_field])
end
更多信息： https://github.com/josevalim/inherited_resources#strong-parameters
答案 5 :(得分：0)
我相信您的resource_params方法应该被称为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。
答案 6 :(得分：0)
我不认为这是一个强大的参数相关错误。在Rails 4.0中，如果参数未列入白名单，则会以静默方式失败，并且不会创建对象。我有一段时间没有这个错误，我不知道如何修复它，但是你可以发布你的routes.rb文件，并在你的控制器中包含new和create方法吗？我很确定你的错误在你的资源嵌套中。