草庐IT

javascript - 不变违规 : Objects are not valid as a React child

在我的组件的渲染函数中,我有:render(){constitems=['EN','IT','FR','GR','RU'].map((item)=>{return({item});});return(...{items}...);}一切都很好,但是当单击时元素我收到以下错误:UncaughtError:InvariantViolation:ObjectsarenotvalidasaReactchild(found:objectwithkeys{dispatchConfig,dispatchMarker,nativeEvent,target,currentTarget,type,even

java - @Valid 注解不验证子对象列表

主要模型类如下:publicclassUserAddressesForm{@NotEmptyprivateStringfirstName;@NotEmptyprivateStringlastName;privateListaddresses;//settersandgetters}publicclassAddressForm{@NotEmptyprivateStringcustomName;@NotEmptyprivateStringcity;@NotEmptyprivateStringstreetAn;@NotEmptyprivateStringstreetHn;@NotEmptyp

php - "Class XXX is not a valid entity or mapped super class"在文件系统中移动类后

我在Aib\PlatformBundle\Entity\User.php中有一个实体类我尝试通过创建它的表单类没有问题phpapp/consoledoctrine:generate:formAibPlatformBundle:User现在我已将命名空间更改为Aib\PlatformBundle\Entity\Identity\User,但是当我尝试使用我之前所说的任务生成表单时它说:"ClassAib\PlatformBundle\Entity\Userisnotavalidentityormappedsuperclass."这是文件内容:有什么想法吗?symfony2.0.4

python - pymongo.errors.CursorNotFound : cursor id '...' not valid at server

我正在尝试使用以下代码获取mongo数据库中存在的一些ID:client=MongoClient('xx.xx.xx.xx',xxx)db=client.test_databasedb=client['...']collection=db.test_collectioncollection=db["..."]forcursorincollection.find({"$and":[{"followers":{"$gt":2000}},{"followers":{"$lt":3000}},{"list_followers":{"$exists":False}}]}):printcursor

java - "PKIX path building failed"和 "unable to find valid certification path to requested target"

我正在尝试使用twitter4j库为我的java项目获取推文,该项目在java.net.HttpURLConnection下使用(如堆栈跟踪中所示)。在我第一次运行时,我收到关于证书sun.security.validator.ValidatorException和sun.security.provider.certpath.SunCertPathBuilderException的错误。然后我通过以下方式添加了twitter证书:C:\ProgramFiles\Java\jdk1.7.0_45\jre\lib\security>keytool-importcert-trustcacer

ruby - 无法推送 gem : Home does not appear to be a valid URL

我刚刚完成构建,尝试推送gem我收到以下错误:保存您的gem时出现问题:HomedoesnotappeartobeavalidURL.这是我的gem规范:#coding:utf-8lib=File.expand_path('../lib',__FILE__)$LOAD_PATH.unshift(lib)unless$LOAD_PATH.include?(lib)require'upkeeper/version'Gem::Specification.newdo|spec|spec.name="upkeeper"spec.version=Upkeeper::VERSIONspec.auth

ruby - gem 安装失败,显示 "ruby: invalid option -H (-h will show valid options) (RuntimeError)"

在OSXMountainlion上运行geminstallffi会产生以下错误。geminstallffiBuildingnativeextensions.Thiscouldtakeawhile...ERROR:Errorinstallingffi:ERROR:Failedtobuildgemnativeextension./beweiche.rvm/rubies/ruby-1.9.3-p374/bin/rubyextconf.rb/beweiche.rvm/rubies/ruby-1.9.3-p374/bin/ruby:invalidoption-H(-hwillshowvalido

javascript - Rails 抛出 "REXML::ParseException does not have a valid root"异常

我有一个JavaScript对象,并使用DouglasCrockford'sJSONutility将其转换为JSON.在发送AJAX后请求时,我得到:REXML::ParseExceptiondoesnothaveavalidrootREXML::ParseException(Thedocument"{\"name\":\"asda\",\"deadline\":\"May24,2011\"}"doesnothaveavalidroot):我无法继续处理此错误。 最佳答案 发出AJAX请求时,您可能发送了错误的Content-Typ

ruby-on-rails - rails : force a model to be not valid

我有一个非常特殊的情况,我想强制模型实例无效。像这样:user=User.newuser.valid?#trueuser.make_not_valid!user.valid?#false有什么办法可以实现吗?谢谢! 最佳答案 你可以这样做:validate:forced_to_be_invaliddefmake_not_valid!@not_valid=trueendprivatedefforced_to_be_invaliderrors.add(:base,'hasbeenforcedtobeinvalid')if@not_val

ruby-on-rails - 从 Meta_search 升级到 Ransack 时出现 "No valid predicate"错误?

我有一个ActiveRecord模型,其方法定义如下:defstateifdeleted?:deletedelse:expiredendend“search_method”在模型中定义为:search_method:state在View中:=form.select:state,{:expired=>'Expired',:deleted=>'Deleted'}.invert,:include_blank=>'All'对于Meta_search,此方法运行良好。但是当我用Ransack替换gem时,我在示例Controller中得到:ArgumentError没有有效的状态谓词。我正在遵循