草庐IT

node.js - Mongoose {严格: throw} doesn't throw error

我试图到处寻找这个问题的答案,但似乎我运气不好。我有一个非常简单的Mongoose模型varuserObject={profile:{username:{type:String,required:true,lowercase:true},firstname:{type:String,required:true},lastname:{type:String,required:true},img:{type:String,required:true,match:/^(https?:\/\/)/i},email:{type:String,match:/^[a-zA-Z0-9.!#$%&’*+

MongoDB/珀尔 : find_one doesn't return data after unrelated code

mongodb是v4.0.5Perl是5.26.3MongoDBPerl驱动程序是2.0.3这个Data::Dumper输出显示是什么让我发疯INFO-$VAR1=['2753692498269306891',{'conf'=>{'param'=>'argument'},'id'=>'275369249826930689','lastmsg'=>'604195211232139552','_id'=>bless({'oid'=>']:\',&�h�GeR'},'BSON::OID')}];352832438449209345275369249826930689INFO-$VAR1=['

MongoDB : array element projection with findOneAndUpdate doesn't work?

我正在使用Mongoose,我正在尝试更新数组元素并将其恢复更新。这是我的文档结构:{name:String,friends:[{name:String,age:Number}]}当我执行以下查询时,我得到了结果中的所有friend,但我只想找回25岁的friend:theCollection.findOneAndUpdate({name:'cherif','friends.name':'kevin'},{$set:{'friends.$.age':25}},{friends:{$elemMatch:{age:25}}},function(err,result){if(!err){co

adb server version (41) doesn‘t match this client (39)

异常:adbserverversion(41)doesn'tmatchthisclient(39);killing...ADBserverdidn'tACK安装ADB后:查看版本$adbversionAndroidDebugBridgeversion1.0.39Version1:8.1.1-1+r23-5.4-1+eagleInstalledas/usr/lib/android-sdk/platform-tools/adb确定当前系统安装目录:/usr/lib/android-sdk/platform-tools/adb版本为:39和远程设备版本不匹配解决:找一个41的版本,替换该目录(/us

regex - MongoDB 正则表达式查询 : Why doesn't this work?

请查看倒数第二个输入。注意:我使用的是http://try.mongodb.org/>person={fullname:"DerekLitz"}{
 "fullname":"DerekLitz"
 }>db.people.save(person)"ok">db.people.find()
[
 { "_id":{ "$oid":"4df3b39ccc93747e68039f08" }, "fullname":"DerekLitz" }
]>db.people.find({fullname:'DerekLitz'})
[
 { "_id":{ "$oid":"4df3b39ccc9374

ruby-on-rails - :method => 'delete' in link_to doesn't seem to work in Rails 3?

我正在开发的Rails3应用程序中有这样的代码">'edit'%>|'Areyousureyouwanttodeletethisitem?',:method=>'delete'%>编辑链接工作正常,但删除链接一直把我带到表演Action。知道问题出在哪里吗?PS:我将formtastic与Mongoid结合使用,并且ActiveRecord未加载到我的config/application.rb文件中。 最佳答案 Rails3使用简洁的javascript来处理删除,因此您可能需要将以下内容添加到您的布局中:查看railscasts2

mysql - FlywaySqlException : Unable to insert row for version `11` in Schema History table `schema_version` : Field `version_rank` doesn't have a default value 错误

我在使用新迁移运行我的SpringBoot应用程序时遇到此错误。到目前为止,它已经完成了10次迁移。该字段确实没有默认值。不需要默认值,因为Flyway应该在该字段中插入值11。Causedby:org.flywaydb.core.internal.exception.FlywaySqlException:Unabletoinsertrowforversion'11'inSchemaHistorytable`app`.`schema_version`---------------------------------------------------------------------

java - com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException : Table doesn't exist

当我在http://localhost:8080/api/projects访问它时,我猜它连接到我的MySQL数据库,我有一个表PROJECTS(ID,TITLE),但显示以下错误com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException:Table'bugtrackerdb.projects'doesn'texistatsun.reflect.NativeConstructorAccessorImpl.newInstance0(NativeMethod)~[na:1.8.0_40]atsun.reflect.NativeCons

mysql错误: 1292 Incorrect datetime value showing a date that doesn't exist

此存储过程出现错误:DELIMITER$$CREATEDEFINER=`root`@`localhost`PROCEDURE`populateTimeTable`(INtable_nameVARCHAR(45),INstart_dateDATE,INend_dateDATE)BEGINDECLAREfull_dateDATE;SET@query_create=CONCAT('CREATETABLEIFNOTEXISTS',table_name,'(idDateINT(8)UNSIGNEDNOTNULL,dateDATENOTNULL,yearSMALLINT(4)UNSIGNEDNOT

php - 一般错误 : 1364 Field 'identifier' doesn't have a default value

Schema::create('users',function(Blueprint$table){$table->increments('id');$table->integer('identifier')->unique();$table->string('username')->unique();$table->string('name');$table->string('avatar');$table->string('trade')->nullable();$table->decimal('funds')->default(0);$table->enum('visibility