# Mikro Orm

> [![Martin Adámek](https://avatars1.githubusercontent.com/u/615580?s=460\&v=4)](https://github.com/B4nan)

## Pages

- [2](2.md): ·
- [abstractAbstractNamingStrategy<!-- -->](abstractnamingstrategy.md): * *AbstractNamingStrategy*
- [abstractAbstractSchemaGenerator<!-- --> \<D>](abstractschemagenerator.md): * *AbstractSchemaGenerator*
- [abstractAbstractSqlConnection<!-- -->](abstractsqlconnection.md): * [Connection](https://mikro-orm.io/api/core/class/Connection.md)
- [abstractAbstractSqlDriver<!-- --> \<Connection, Platform>](abstractsqldriver.md): * [DatabaseDriver](https://mikro-orm.io/api/core/class/DatabaseDriver.md)\
- [abstractAbstractSqlPlatform<!-- -->](abstractsqlplatform.md): * [Platform](https://mikro-orm.io/api/core/class/Platform.md)
- [AfterCreate<!-- -->](aftercreate.md): * ****AfterCreate**(): (target, method) => void
- [AfterDelete<!-- -->](afterdelete.md): * ****AfterDelete**(): (target, method) => void
- [AfterUpdate<!-- -->](afterupdate.md): * ****AfterUpdate**(): (target, method) => void
- [AfterUpsert<!-- -->](afterupsert.md): * ****AfterUpsert**(): (target, method) => void
- [Alias<!-- --> \<T>](alias.md): * **aliasName
- [ArrayCollection<!-- --> \<T, O>](arraycollection.md): * *ArrayCollection*
- [ArrayType<!-- --> \<T>](arraytype.md): * [Type](https://mikro-orm.io/api/core/class/Type.md)\
- [AssignOptions<!-- --> \<Convert>](assignoptions.md): * **convertCustomTypes
- [abstractBaseEntity<!-- -->](baseentity.md): * **constructor
- [abstractBaseSqliteConnection<!-- -->](basesqliteconnection.md): * [AbstractSqlConnection](https://mikro-orm.io/api/knex/class/AbstractSqlConnection.md)
- [abstractBaseSqlitePlatform<!-- -->](basesqliteplatform.md): * [AbstractSqlPlatform](https://mikro-orm.io/api/knex/class/AbstractSqlPlatform.md)
- [abstractBaseSqliteSchemaHelper<!-- -->](basesqliteschemahelper.md): * [SchemaHelper](https://mikro-orm.io/api/knex/class/SchemaHelper.md)
- [BeforeCreate<!-- -->](beforecreate.md): * ****BeforeCreate**(): (target, method) => void
- [BeforeDelete<!-- -->](beforedelete.md): * ****BeforeDelete**(): (target, method) => void
- [BeforeUpdate<!-- -->](beforeupdate.md): * ****BeforeUpdate**(): (target, method) => void
- [BeforeUpsert<!-- -->](beforeupsert.md): * ****BeforeUpsert**(): (target, method) => void
- [BetterSqliteConnection<!-- -->](bettersqliteconnection.md): * [BaseSqliteConnection](https://mikro-orm.io/api/knex/class/BaseSqliteConnection.md)
- [BetterSqliteDriver<!-- -->](bettersqlitedriver.md): * [AbstractSqlDriver](https://mikro-orm.io/api/knex/class/AbstractSqlDriver.md)<[BetterSqliteConnection](https://mikr...
- [BetterSqliteExceptionConverter<!-- -->](bettersqliteexceptionconverter.md): * [ExceptionConverter](https://mikro-orm.io/api/core/class/ExceptionConverter.md)
- [BetterSqliteKnexDialect<!-- -->](bettersqliteknexdialect.md): * BetterSqlite3Dialect
- [BetterSqlitePlatform<!-- -->](bettersqliteplatform.md): * [BaseSqlitePlatform](https://mikro-orm.io/api/knex/class/BaseSqlitePlatform.md)
- [BetterSqliteSchemaHelper<!-- -->](bettersqliteschemahelper.md): * [BaseSqliteSchemaHelper](https://mikro-orm.io/api/knex/class/BaseSqliteSchemaHelper.md)
- [BigIntType<!-- --> \<Mode>](biginttype.md): This type will automatically convert string values returned from the database to native JS bigints (default) or numbe...
- [BlobType<!-- -->](blobtype.md): * [Uint8ArrayType](https://mikro-orm.io/api/core/class/Uint8ArrayType.md)
- [BooleanType<!-- -->](booleantype.md): * [Type](https://mikro-orm.io/api/core/class/Type.md)\
- [CacheAdapter<!-- -->](cacheadapter.md): * *CacheAdapter*
- [Cascade<!-- -->](cascade.md): * **ALL
- [ChangeSet<!-- --> \<T>](changeset.md): * **constructor
- [ChangeSetComputer<!-- -->](changesetcomputer.md): * **constructor
- [ChangeSetPersister<!-- -->](changesetpersister.md): * **constructor
- [ChangeSetType<!-- -->](changesettype.md): * **CREATE
- [CharacterType<!-- -->](charactertype.md): * [StringType](https://mikro-orm.io/api/core/class/StringType.md)
- [Check<!-- -->](check.md): * ****Check**\(options): (target, propertyName) => any
- [CheckConstraintViolationException<!-- -->](checkconstraintviolationexception.md): Exception for a check constraint violation detected in the driver.
- [CheckDef<!-- --> \<T>](checkdef.md): * **columnName
- [ClearDatabaseOptions<!-- -->](cleardatabaseoptions.md): * *ClearDatabaseOptions*
- [Collection<!-- --> \<T, O>](collection.md): * [ArrayCollection](https://mikro-orm.io/api/core/class/ArrayCollection.md)\
- [Column<!-- -->](column.md): * **autoincrement
- [ColumnDifference<!-- -->](columndifference.md): * **changedProperties
- [Configuration<!-- --> \<D, EM>](configuration.md): * **constructor
- [abstractConnection<!-- -->](connection.md): * *Connection*
- [ConnectionConfig<!-- -->](connectionconfig.md): * **database
- [ConnectionException<!-- -->](connectionexception.md): Base class for all connection related errors detected in the driver.
- [ConnectionOptions<!-- -->](connectionoptions.md): * *ConnectionOptions*
- [ConstraintViolationException<!-- -->](constraintviolationexception.md): Base class for all constraint violation related errors detected in the driver.
- [CountOptions<!-- --> \<T, P>](countoptions.md): * *CountOptions*
- [CountQueryBuilder<!-- --> \<Entity>](countquerybuilder.md): SQL query builder with fluent interface.
- [CreateContextOptions<!-- -->](createcontextoptions.md): * **loggerContext
- [CreateOptions<!-- --> \<Convert>](createoptions.md): * **convertCustomTypes
- [CreateRequestContext<!-- -->](createrequestcontext.md): * ****CreateRequestContext**\(context, respectExistingContext): MethodDecorator
- [CreateSchemaOptions<!-- -->](createschemaoptions.md): * *CreateSchemaOptions*
- [Cursor<!-- --> \<Entity, Hint, Fields, Excludes, IncludeCount>](cursor.md): As an alternative to the offset-based pagination with`limit`and`offset`, we can paginate based on a cursor. A curs...
- [CursorError<!-- --> \<T>](cursorerror.md): * [ValidationError](https://mikro-orm.io/api/core/class/ValidationError.md)\
- [abstractDatabaseDriver<!-- --> \<C>](databasedriver.md): * *DatabaseDriver*
- [DatabaseObjectExistsException<!-- -->](databaseobjectexistsexception.md): Base class for all already existing database object related errors detected in the driver.
- [DatabaseObjectNotFoundException<!-- -->](databaseobjectnotfoundexception.md): Base class for all unknown database object related errors detected in the driver.
- [DataloaderType<!-- -->](dataloadertype.md): * **ALL
- [DataloaderUtils<!-- -->](dataloaderutils.md): * **constructor
- [DateTimeType<!-- -->](datetimetype.md): * [Type](https://mikro-orm.io/api/core/class/Type.md)\
- [DateType<!-- -->](datetype.md): * [Type](https://mikro-orm.io/api/core/class/Type.md)\
- [DeadlockException<!-- -->](deadlockexception.md): Exception for a deadlock error of a transaction detected in the driver.
- [DecimalType<!-- --> \<Mode>](decimaltype.md): Type that maps an SQL DECIMAL to a JS string or number.
- [DefaultLogger<!-- -->](defaultlogger.md): * *DefaultLogger*
- [DeferMode<!-- -->](defermode.md): * **INITIALLY\_DEFERRED
- [DefineConfig<!-- -->](defineconfig.md): * [**Brand](https://mikro-orm.io/api/core/namespace/DefineConfig.md#Brand)
- [DefineEntityHooks<!-- --> \<T>](defineentityhooks.md): * Partial\, keyof
- [DeleteOptions<!-- --> \<T>](deleteoptions.md): * [DriverMethodOptions](https://mikro-orm.io/api/core/interface/DriverMethodOptions.md)
- [DeleteQueryBuilder<!-- --> \<T>](deletequerybuilder.md): * [RunQueryBuilder](https://mikro-orm.io/api/knex/interface/RunQueryBuilder.md)\
- [DoubleType<!-- -->](doubletype.md): Type that maps an SQL DOUBLE to a JS string or number.
- [DriverException<!-- -->](driverexception.md): Base class for all errors detected in the driver.
- [DriverMethodOptions<!-- -->](drivermethodoptions.md): * *DriverMethodOptions*
- [DropSchemaOptions<!-- -->](dropschemaoptions.md): * **dropDb
- [DynamicPassword<!-- -->](dynamicpassword.md): * **expirationChecker
- [Edge<!-- -->](edge.md): * **from
- [Embeddable<!-- -->](embeddable.md): * ****Embeddable**(options): \(target) => T & [Dictionary](https://mikro-orm.io/api/core.md#Dictionary)
- [Embedded<!-- -->](embedded.md): * ****Embedded**\(type, options): (target, propertyName) => any
- [EmbeddedOptions<!-- --> \<Owner, Target>](embeddedoptions.md): * [PropertyOptions](https://mikro-orm.io/api/core/interface/PropertyOptions.md)\
- [EmptyOptions<!-- -->](emptyoptions.md): * Partial\>
- [EnsureDatabaseOptions<!-- -->](ensuredatabaseoptions.md): * [CreateSchemaOptions](https://mikro-orm.io/api/core/interface/CreateSchemaOptions.md)
- [EnsureIndexesOptions<!-- -->](ensureindexesoptions.md): * **ensureCollections
- [EnsureRequestContext<!-- -->](ensurerequestcontext.md): * ****EnsureRequestContext**\(context): MethodDecorator
- [Entity<!-- -->](entity.md): * ****Entity**\(options): (target) => void
- [EntityAssigner<!-- -->](entityassigner.md): * **constructor
- [EntityCaseNamingStrategy<!-- -->](entitycasenamingstrategy.md): This strategy keeps original entity/property names for table/column.
- [EntityComparator<!-- -->](entitycomparator.md): * **constructor
- [EntityFactory<!-- -->](entityfactory.md): * **constructor
- [EntityGenerator<!-- -->](entitygenerator.md): * **constructor
- [EntityLoader<!-- -->](entityloader.md): * **constructor
- [EntityManager<!-- --> \<Driver>](entitymanager.md): The EntityManager is the central access point to ORM functionality. It is a facade to all different ORM subsystems su...
- [EntityMetadata<!-- --> \<T>](entitymetadata.md): * **constructor
- [EntityProperty<!-- --> \<Owner, Target>](entityproperty.md): * **accessor
- [EntityRepository<!-- --> \<Entity>](entityrepository.md): * *EntityRepository*
- [EntitySchema<!-- --> \<Entity, Base>](entityschema.md): * **constructor
- [EntitySerializer<!-- -->](entityserializer.md): * **constructor
- [EntityTransformer<!-- -->](entitytransformer.md): * **constructor
- [EntityValidator<!-- -->](entityvalidator.md): * **constructor
- [Enum<!-- -->](enum.md): * ****Enum**\(options): (target, propertyName) => any
- [EnumArrayType<!-- --> \<T>](enumarraytype.md): * [ArrayType](https://mikro-orm.io/api/core/class/ArrayType.md)\
- [EnumOptions<!-- --> \<T>](enumoptions.md): * [PropertyOptions](https://mikro-orm.io/api/core/interface/PropertyOptions.md)\
- [EnumType<!-- -->](enumtype.md): * [Type](https://mikro-orm.io/api/core/class/Type.md)\
- [EventArgs<!-- --> \<T>](eventargs.md): * **changeSet
- [EventManager<!-- -->](eventmanager.md): * **constructor
- [EventSubscriber<!-- --> \<T>](eventsubscriber.md): * **afterCreate
- [EventType<!-- -->](eventtype.md): * **afterCreate
- [ExceptionConverter<!-- -->](exceptionconverter.md): * *ExceptionConverter*
- [ExecuteOptions<!-- -->](executeoptions.md): * **mapResults
- [abstractFactory<!-- --> \<TEntity, TInput>](factory.md): * **constructor
- [FactoryOptions<!-- -->](factoryoptions.md): * **convertCustomTypes
- [FileCacheAdapter<!-- -->](filecacheadapter.md): * [SyncCacheAdapter](https://mikro-orm.io/api/core/interface/SyncCacheAdapter.md)
- [Filter<!-- -->](filter.md): * ****Filter**\(options): \(target) => U & [Dictionary](https://mikro-orm.io/api/core.md#Dictionary)
- [FindAllOptions<!-- --> \<T, P, F, E>](findalloptions.md): * [FindOptions](https://mikro-orm.io/api/core/interface/FindOptions.md)\
- [FindByCursorOptions<!-- --> \<T, P, F, E, I>](findbycursoroptions.md): * Omit, limit | offset>
- [FindOneOptions<!-- --> \<T, P, F, E>](findoneoptions.md): * Omit, limit | lockMode>
- [FindOneOrFailOptions<!-- --> \<T, P, F, E>](findoneorfailoptions.md): * [FindOneOptions](https://mikro-orm.io/api/core/interface/FindOneOptions.md)\
- [FindOptions<!-- --> \<Entity, Hint, Fields, Excludes>](findoptions.md): * [LoadHint](https://mikro-orm.io/api/core/interface/LoadHint.md)\
- [FlatQueryOrderMap<!-- -->](flatqueryordermap.md)
- [FloatType<!-- -->](floattype.md): * [Type](https://mikro-orm.io/api/core/class/Type.md)\
- [FlushEventArgs<!-- -->](flusheventargs.md): * Omit, entity | changeSet | meta>
- [FlushMode<!-- -->](flushmode.md): * **ALWAYS
- [ForeignKey<!-- -->](foreignkey.md): * **columnNames
- [ForeignKeyConstraintViolationException<!-- -->](foreignkeyconstraintviolationexception.md): Exception for a foreign key constraint violation detected in the driver.
- [ForkOptions<!-- -->](forkoptions.md): * **clear
- [Formula<!-- -->](formula.md): * ****Formula**\(formula, options): (target, propertyName) => any
- [FormulaOptions<!-- --> \<T>](formulaoptions.md): * [PropertyOptions](https://mikro-orm.io/api/core/interface/PropertyOptions.md)\
- [FullTextType<!-- -->](fulltexttype.md): * [Type](https://mikro-orm.io/api/core/class/Type.md)\<string | [WeightedFullTextValue](https://mikro-orm.io/api/post...
- [GenerateOptions<!-- -->](generateoptions.md): * **bidirectionalRelations
- [GeneratedCacheAdapter<!-- -->](generatedcacheadapter.md): * [CacheAdapter](https://mikro-orm.io/api/core/interface/CacheAdapter.md)
- [GetReferenceOptions<!-- -->](getreferenceoptions.md): * **convertCustomTypes
- [GroupOperator<!-- -->](groupoperator.md): * **$and
- [Hidden<!-- -->](hidden.md): * [**Brand](https://mikro-orm.io/api/core/namespace/Hidden.md#Brand)
- [Highlighter<!-- -->](highlighter.md): * [NullHighlighter](https://mikro-orm.io/api/core/class/NullHighlighter.md)
- [abstractHydrator<!-- -->](hydrator.md): * *Hydrator*
- [IConfiguration<!-- -->](iconfiguration.md): * **get
- [ICriteriaNode<!-- --> \<T>](icriterianode.md): * **entityName
- [ICriteriaNodeProcessOptions<!-- -->](icriterianodeprocessoptions.md): * **alias
- [IDatabaseDriver<!-- --> \<C>](idatabasedriver.md): * [DatabaseDriver](https://mikro-orm.io/api/core/class/DatabaseDriver.md)
- [IEntityGenerator<!-- -->](ientitygenerator.md): * **generate
- [IMigrationGenerator<!-- -->](imigrationgenerator.md): * [MigrationGenerator](https://mikro-orm.io/api/migrations/class/MigrationGenerator.md)
- [IMigrator<!-- -->](imigrator.md): * [Migrator](https://mikro-orm.io/api/migrations/class/Migrator.md)
- [IQueryBuilder<!-- --> \<T>](iquerybuilder.md): * **\_fields
- [ISchemaGenerator<!-- -->](ischemagenerator.md): * [AbstractSchemaGenerator](https://mikro-orm.io/api/core/class/AbstractSchemaGenerator.md)
- [ISeedManager<!-- -->](iseedmanager.md): * [SeedManager](https://mikro-orm.io/api/seeder/class/SeedManager.md)
- [IWrappedEntity<!-- --> \<Entity>](iwrappedentity.md): * **assign
- [IdentityMap<!-- -->](identitymap.md): * **constructor
- [IndexDef<!-- -->](indexdef.md): * **columnNames
- [IndexOptions<!-- --> \<T, H>](indexoptions.md): * BaseOptions\
- [InitCollectionOptions<!-- --> \<T, P, F, E>](initcollectionoptions.md): * [EntityLoaderOptions](https://mikro-orm.io/api/core.md#EntityLoaderOptions)\
- [InsertQueryBuilder<!-- --> \<T>](insertquerybuilder.md): * [RunQueryBuilder](https://mikro-orm.io/api/knex/interface/RunQueryBuilder.md)\
- [IntegerType<!-- -->](integertype.md): * [Type](https://mikro-orm.io/api/core/class/Type.md)\
- [IntervalType<!-- -->](intervaltype.md): * [Type](https://mikro-orm.io/api/core/class/Type.md)\
- [InvalidFieldNameException<!-- -->](invalidfieldnameexception.md): Exception for an invalid specified field name in a statement detected in the driver.
- [IsolationLevel<!-- -->](isolationlevel.md): * **READ\_COMMITTED
- [JSMigrationGenerator<!-- -->](jsmigrationgenerator.md): * [MigrationGenerator](https://mikro-orm.io/api/migrations/class/MigrationGenerator.md)
- [JoinOptions<!-- -->](joinoptions.md): * **alias
- [JoinType<!-- -->](jointype.md): * **innerJoin
- [JsonType<!-- -->](jsontype.md): * [Type](https://mikro-orm.io/api/core/class/Type.md)\
- [Knex<!-- --> \<TRecord, TResult>](knex.md): * QueryInterface\
- [LibSqlConnection<!-- -->](libsqlconnection.md): * [BaseSqliteConnection](https://mikro-orm.io/api/knex/class/BaseSqliteConnection.md)
- [LibSqlDriver<!-- -->](libsqldriver.md): * [AbstractSqlDriver](https://mikro-orm.io/api/knex/class/AbstractSqlDriver.md)<[LibSqlConnection](https://mikro-orm....
- [LibSqlExceptionConverter<!-- -->](libsqlexceptionconverter.md): * [ExceptionConverter](https://mikro-orm.io/api/core/class/ExceptionConverter.md)
- [LibSqlKnexDialect<!-- -->](libsqlknexdialect.md): * BetterSqlite3Dialect
- [LibSqlPlatform<!-- -->](libsqlplatform.md): * [BaseSqlitePlatform](https://mikro-orm.io/api/knex/class/BaseSqlitePlatform.md)
- [LibSqlSchemaHelper<!-- -->](libsqlschemahelper.md): * [BaseSqliteSchemaHelper](https://mikro-orm.io/api/knex/class/BaseSqliteSchemaHelper.md)
- [LoadCountOptions<!-- --> \<T>](loadcountoptions.md): * [CountOptions](https://mikro-orm.io/api/core/interface/CountOptions.md)\
- [LoadHint<!-- --> \<Entity, Hint, Fields, Excludes>](loadhint.md): * *LoadHint*
- [LoadReferenceOptions<!-- --> \<T, P, F, E>](loadreferenceoptions.md): * [FindOneOptions](https://mikro-orm.io/api/core/interface/FindOneOptions.md)\
- [LoadReferenceOrFailOptions<!-- --> \<T, P, F, E>](loadreferenceorfailoptions.md): * [FindOneOrFailOptions](https://mikro-orm.io/api/core/interface/FindOneOrFailOptions.md)\
- [LoadStrategy<!-- -->](loadstrategy.md): * **BALANCED
- [LoadedCollection<!-- --> \<T>](loadedcollection.md): * [Collection](https://mikro-orm.io/api/core/class/Collection.md)\
- [LoadedReference<!-- --> \<T>](loadedreference.md): * [Reference](https://mikro-orm.io/api/core/class/Reference.md)\>
- [LockMode<!-- -->](lockmode.md): * **NONE
- [LockOptions<!-- -->](lockoptions.md): * [DriverMethodOptions](https://mikro-orm.io/api/core/interface/DriverMethodOptions.md)
- [LockWaitTimeoutException<!-- -->](lockwaittimeoutexception.md): Exception for a lock wait timeout error of a transaction detected in the driver.
- [LogContext<!-- -->](logcontext.md): * [Dictionary](https://mikro-orm.io/api/core.md#Dictionary)
- [Logger<!-- -->](logger.md): * [DefaultLogger](https://mikro-orm.io/api/core/class/DefaultLogger.md)
- [LoggerOptions<!-- -->](loggeroptions.md): * **debugMode
- [ManyToMany<!-- -->](manytomany.md): * ****ManyToMany**\(entity, mappedBy, options): (target, propertyName) => any
- [ManyToManyOptions<!-- --> \<Owner, Target>](manytomanyoptions.md): * [ReferenceOptions](https://mikro-orm.io/api/core/interface/ReferenceOptions.md)\
- [ManyToOne<!-- -->](manytoone.md): * ****ManyToOne**\(entity, options): (target, propertyName) => any
- [ManyToOneOptions<!-- --> \<Owner, Target>](manytooneoptions.md): * [ReferenceOptions](https://mikro-orm.io/api/core/interface/ReferenceOptions.md)\
- [MariaDbConnection<!-- -->](mariadbconnection.md): * [MySqlConnection](https://mikro-orm.io/api/knex/class/MySqlConnection.md)
- [MariaDbDriver<!-- -->](mariadbdriver.md): * [AbstractSqlDriver](https://mikro-orm.io/api/knex/class/AbstractSqlDriver.md)<[MariaDbConnection](https://mikro-orm...
- [MariaDbExceptionConverter<!-- -->](mariadbexceptionconverter.md): * [ExceptionConverter](https://mikro-orm.io/api/core/class/ExceptionConverter.md)
- [MariaDbKnexDialect<!-- -->](mariadbknexdialect.md): * [MySqlKnexDialect](https://mikro-orm.io/api/knex/class/MySqlKnexDialect.md)
- [MariaDbPlatform<!-- -->](mariadbplatform.md): * [MySqlPlatform](https://mikro-orm.io/api/knex/class/MySqlPlatform.md)
- [MariaDbSchemaHelper<!-- -->](mariadbschemahelper.md): * [MySqlSchemaHelper](https://mikro-orm.io/api/knex/class/MySqlSchemaHelper.md)
- [MatchingOptions<!-- --> \<T, P>](matchingoptions.md): * [FindOptions](https://mikro-orm.io/api/core/interface/FindOptions.md)\
- [MediumIntType<!-- -->](mediuminttype.md): * [IntegerType](https://mikro-orm.io/api/core/class/IntegerType.md)
- [MemoryCacheAdapter<!-- -->](memorycacheadapter.md): * [CacheAdapter](https://mikro-orm.io/api/core/interface/CacheAdapter.md)
- [MergeOptions<!-- -->](mergeoptions.md): * **cascade
- [MetadataDiscovery<!-- -->](metadatadiscovery.md): * **constructor
- [MetadataDiscoveryOptions<!-- -->](metadatadiscoveryoptions.md): * **afterDiscovered
- [MetadataError<!-- --> \<T>](metadataerror.md): * [ValidationError](https://mikro-orm.io/api/core/class/ValidationError.md)\
- [abstractMetadataProvider<!-- -->](metadataprovider.md): * *MetadataProvider*
- [MetadataStorage<!-- -->](metadatastorage.md): * **constructor
- [abstractMigration<!-- -->](migration.md): * **constructor
- [MigrationDiff<!-- -->](migrationdiff.md): * **down
- [abstractMigrationGenerator<!-- -->](migrationgenerator.md): * *MigrationGenerator*
- [MigrationObject<!-- -->](migrationobject.md): * **class
- [MigrationRunner<!-- -->](migrationrunner.md): * **constructor
- [MigrationStorage<!-- -->](migrationstorage.md): * UmzugStorage
- [Migrator<!-- -->](migrator.md): * [IMigrator](https://mikro-orm.io/api/core/interface/IMigrator.md)
- [MikroORM<!-- --> \<EM>](mikroorm.md): Helper class for bootstrapping the MikroORM.
- [MikroORMOptions<!-- --> \<D, EM>](mikroormoptions.md): * [ConnectionOptions](https://mikro-orm.io/api/core/interface/ConnectionOptions.md)
- [MongoConnection<!-- -->](mongoconnection.md): * [Connection](https://mikro-orm.io/api/core/class/Connection.md)
- [MongoCreateSchemaOptions<!-- -->](mongocreateschemaoptions.md): * [CreateSchemaOptions](https://mikro-orm.io/api/core/interface/CreateSchemaOptions.md)
- [MongoDriver<!-- -->](mongodriver.md): * [DatabaseDriver](https://mikro-orm.io/api/core/class/DatabaseDriver.md)<[MongoConnection](https://mikro-orm.io/api/...
- [MongoNamingStrategy<!-- -->](mongonamingstrategy.md): * [AbstractNamingStrategy](https://mikro-orm.io/api/core/class/AbstractNamingStrategy.md)
- [MongoPlatform<!-- -->](mongoplatform.md): * [Platform](https://mikro-orm.io/api/core/class/Platform.md)
- [MongoSchemaGenerator<!-- -->](mongoschemagenerator.md): * [AbstractSchemaGenerator](https://mikro-orm.io/api/core/class/AbstractSchemaGenerator.md)<[MongoDriver](https://mik...
- [MsSqlConnection<!-- -->](mssqlconnection.md): * [AbstractSqlConnection](https://mikro-orm.io/api/knex/class/AbstractSqlConnection.md)
- [MsSqlDriver<!-- -->](mssqldriver.md): * [AbstractSqlDriver](https://mikro-orm.io/api/knex/class/AbstractSqlDriver.md)<[MsSqlConnection](https://mikro-orm.i...
- [MsSqlExceptionConverter<!-- -->](mssqlexceptionconverter.md): * [ExceptionConverter](https://mikro-orm.io/api/core/class/ExceptionConverter.md)
- [MsSqlKnexDialect<!-- -->](mssqlknexdialect.md): * MsSqlDialect
- [MsSqlPlatform<!-- -->](mssqlplatform.md): * [AbstractSqlPlatform](https://mikro-orm.io/api/knex/class/AbstractSqlPlatform.md)
- [MsSqlSchemaHelper<!-- -->](mssqlschemahelper.md): * [SchemaHelper](https://mikro-orm.io/api/knex/class/SchemaHelper.md)
- [MySqlConnection<!-- -->](mysqlconnection.md): * [AbstractSqlConnection](https://mikro-orm.io/api/knex/class/AbstractSqlConnection.md)
- [MySqlDriver<!-- -->](mysqldriver.md): * [AbstractSqlDriver](https://mikro-orm.io/api/knex/class/AbstractSqlDriver.md)<[MySqlConnection](https://mikro-orm.i...
- [MySqlExceptionConverter<!-- -->](mysqlexceptionconverter.md): * [ExceptionConverter](https://mikro-orm.io/api/core/class/ExceptionConverter.md)
- [MySqlKnexDialect<!-- -->](mysqlknexdialect.md): * MySqlDialect
- [MySqlPlatform<!-- -->](mysqlplatform.md): * [AbstractSqlPlatform](https://mikro-orm.io/api/knex/class/AbstractSqlPlatform.md)
- [MySqlSchemaHelper<!-- -->](mysqlschemahelper.md): * [SchemaHelper](https://mikro-orm.io/api/knex/class/SchemaHelper.md)
- [MySqlTableBuilder<!-- -->](mysqltablebuilder.md): * TableBuilder
- [NamingStrategy<!-- -->](namingstrategy.md): * [AbstractNamingStrategy](https://mikro-orm.io/api/core/class/AbstractNamingStrategy.md)
- [NativeDeleteOptions<!-- --> \<T>](nativedeleteoptions.md): * [DriverMethodOptions](https://mikro-orm.io/api/core/interface/DriverMethodOptions.md)
- [NativeInsertUpdateManyOptions<!-- --> \<T>](nativeinsertupdatemanyoptions.md): * [NativeInsertUpdateOptions](https://mikro-orm.io/api/core/interface/NativeInsertUpdateOptions.md)\
- [NativeInsertUpdateOptions<!-- --> \<T>](nativeinsertupdateoptions.md): * *NativeInsertUpdateOptions*
- [Node<!-- -->](node.md): * **dependencies
- [constNodeState<!-- -->](nodestate.md): * **IN\_PROGRESS
- [NonUniqueFieldNameException<!-- -->](nonuniquefieldnameexception.md): Exception for a non-unique/ambiguous specified field name in a statement detected in the driver.
- [NotFoundError<!-- --> \<T>](notfounderror.md): * [ValidationError](https://mikro-orm.io/api/core/class/ValidationError.md)\
- [NotNullConstraintViolationException<!-- -->](notnullconstraintviolationexception.md): Exception for a NOT NULL constraint violation detected in the driver.
- [NullCacheAdapter<!-- -->](nullcacheadapter.md): * [SyncCacheAdapter](https://mikro-orm.io/api/core/interface/SyncCacheAdapter.md)
- [NullHighlighter<!-- -->](nullhighlighter.md): * [Highlighter](https://mikro-orm.io/api/core/interface/Highlighter.md)
- [ObjectHydrator<!-- -->](objecthydrator.md): * [Hydrator](https://mikro-orm.io/api/core/class/Hydrator.md)
- [publicObjectId<!-- -->](objectid.md): A class representation of the BSON ObjectId type.
- [OnInit<!-- -->](oninit.md): * ****OnInit**(): (target, method) => void
- [OnLoad<!-- -->](onload.md): * ****OnLoad**(): (target, method) => void
- [OneToMany<!-- -->](onetomany.md): * ****OneToMany**\(entity, mappedBy, options): (target, propertyName) => void
- [OneToManyOptions<!-- --> \<Owner, Target>](onetomanyoptions.md): * [ReferenceOptions](https://mikro-orm.io/api/core/interface/ReferenceOptions.md)\
- [OneToOne<!-- -->](onetoone.md): * ****OneToOne**\(entity, mappedByOrOptions, options): (target, propertyName) => any
- [OneToOneOptions<!-- --> \<Owner, Target>](onetooneoptions.md): * Partial\, orde...
- [Opt<!-- -->](opt.md): * [**Brand](https://mikro-orm.io/api/core/namespace/Opt.md#Brand)
- [OptimisticLockError<!-- --> \<T>](optimisticlockerror.md): * [ValidationError](https://mikro-orm.io/api/core/class/ValidationError.md)\
- [abstractPlainObject<!-- -->](plainobject.md): * **constructor
- [abstractPlatform<!-- -->](platform.md): * *Platform*
- [PoolConfig<!-- -->](poolconfig.md): * **acquireTimeoutMillis
- [PopulateHint<!-- -->](populatehint.md): * **ALL
- [PopulatePath<!-- -->](populatepath.md): * **ALL
- [PostgreSqlConnection<!-- -->](postgresqlconnection.md): * [AbstractSqlConnection](https://mikro-orm.io/api/knex/class/AbstractSqlConnection.md)
- [PostgreSqlDriver<!-- -->](postgresqldriver.md): * [AbstractSqlDriver](https://mikro-orm.io/api/knex/class/AbstractSqlDriver.md)<[PostgreSqlConnection](https://mikro-...
- [PostgreSqlExceptionConverter<!-- -->](postgresqlexceptionconverter.md): * [ExceptionConverter](https://mikro-orm.io/api/core/class/ExceptionConverter.md)
- [PostgreSqlKnexDialect<!-- -->](postgresqlknexdialect.md): * PostgresDialect
- [PostgreSqlPlatform<!-- -->](postgresqlplatform.md): * [AbstractSqlPlatform](https://mikro-orm.io/api/knex/class/AbstractSqlPlatform.md)
- [PostgreSqlSchemaHelper<!-- -->](postgresqlschemahelper.md): * [SchemaHelper](https://mikro-orm.io/api/knex/class/SchemaHelper.md)
- [PrimaryKey<!-- -->](primarykey.md): * ****PrimaryKey**\(options): (target, propertyName) => any
- [PrimaryKeyOptions<!-- --> \<T>](primarykeyoptions.md): * [PropertyOptions](https://mikro-orm.io/api/core/interface/PropertyOptions.md)\
- [Property<!-- -->](property.md): * ****Property**\(options): (target, propertyName) => any
- [PropertyOptions<!-- --> \<Owner>](propertyoptions.md): * *PropertyOptions*
- [QueryBuilder<!-- --> \<Entity, RootAlias, Hint, Context>](querybuilder.md): SQL query builder with fluent interface.
- [QueryFlag<!-- -->](queryflag.md): * **AUTO\_JOIN\_ONE\_TO\_ONE\_OWNER
- [QueryOperator<!-- -->](queryoperator.md): * **$contained
- [QueryOrder<!-- -->](queryorder.md): * **asc
- [QueryOrderNumeric<!-- -->](queryordernumeric.md): * **ASC
- [QueryResult<!-- --> \<T>](queryresult.md): * **affectedRows
- [QueryType<!-- -->](querytype.md): * **COUNT
- [RawQueryFragment<!-- -->](rawqueryfragment.md): * **constructor
- [ReadOnlyException<!-- -->](readonlyexception.md): Exception for a write operation attempt on a read-only database element detected in the driver.
- [Reference<!-- --> \<T>](reference.md): * *Reference*
- [ReferenceKind<!-- -->](referencekind.md): * **EMBEDDED
- [ReferenceOptions<!-- --> \<Owner, Target>](referenceoptions.md): * [PropertyOptions](https://mikro-orm.io/api/core/interface/PropertyOptions.md)\
- [ReflectMetadataProvider<!-- -->](reflectmetadataprovider.md): * [MetadataProvider](https://mikro-orm.io/api/core/class/MetadataProvider.md)
- [RefreshDatabaseOptions<!-- -->](refreshdatabaseoptions.md): * [CreateSchemaOptions](https://mikro-orm.io/api/core/interface/CreateSchemaOptions.md)
- [RegisterOptions<!-- -->](registeroptions.md): * **loaded
- [RequestContext<!-- -->](requestcontext.md): Uses`AsyncLocalStorage`to create async context that holds the current EM fork.
- [RequiredNullable<!-- -->](requirednullable.md): * [**Brand](https://mikro-orm.io/api/core/namespace/RequiredNullable.md#Brand)
- [RunQueryBuilder<!-- --> \<Entity>](runquerybuilder.md): * Omit, getResult | getSingleR...
- [ScalarReference<!-- --> \<Value>](scalarreference.md): * **constructor
- [SchemaComparator<!-- -->](schemacomparator.md): Compares two Schemas and return an instance of SchemaDifference.
- [SchemaDifference<!-- -->](schemadifference.md): * **changedTables
- [abstractSchemaHelper<!-- -->](schemahelper.md): * *SchemaHelper*
- [SeedManager<!-- -->](seedmanager.md): * [ISeedManager](https://mikro-orm.io/api/core/interface/ISeedManager.md)
- [abstractSeeder<!-- --> \<T>](seeder.md): * **constructor
- [SeederOptions<!-- -->](seederoptions.md): * **defaultSeeder
- [SelectQueryBuilder<!-- --> \<Entity, RootAlias, Hint, Context>](selectquerybuilder.md): SQL query builder with fluent interface.
- [SerializationContext<!-- --> \<T>](serializationcontext.md): Helper that allows to keep track of where we are currently at when serializing complex entity graph with cycles. Befo...
- [SerializeOptions<!-- --> \<T, P, E>](serializeoptions.md): * **exclude
- [SerializedPrimaryKey<!-- -->](serializedprimarykey.md): * ****SerializedPrimaryKey**\(options): (target, propertyName) => any
- [SerializedPrimaryKeyOptions<!-- --> \<T>](serializedprimarykeyoptions.md): * [PropertyOptions](https://mikro-orm.io/api/core/interface/PropertyOptions.md)\
- [ServerException<!-- -->](serverexception.md): Base class for all server related errors detected in the driver.
- [Settings<!-- -->](settings.md): * **alwaysAllowTs
- [SimpleColumnMeta<!-- -->](simplecolumnmeta.md): * **name
- [SimpleLogger<!-- -->](simplelogger.md): A basic logger that provides fully formatted output without color
- [SmallIntType<!-- -->](smallinttype.md): * [Type](https://mikro-orm.io/api/core/class/Type.md)\
- [SqlSchemaGenerator<!-- -->](sqlschemagenerator.md): * [AbstractSchemaGenerator](https://mikro-orm.io/api/core/class/AbstractSchemaGenerator.md)<[AbstractSqlDriver](https...
- [SqliteConnection<!-- -->](sqliteconnection.md): * [BaseSqliteConnection](https://mikro-orm.io/api/knex/class/BaseSqliteConnection.md)
- [SqliteDriver<!-- -->](sqlitedriver.md): * [AbstractSqlDriver](https://mikro-orm.io/api/knex/class/AbstractSqlDriver.md)<[SqliteConnection](https://mikro-orm....
- [SqliteExceptionConverter<!-- -->](sqliteexceptionconverter.md): * [ExceptionConverter](https://mikro-orm.io/api/core/class/ExceptionConverter.md)
- [SqliteKnexDialect<!-- -->](sqliteknexdialect.md): * Sqlite3Dialect
- [SqlitePlatform<!-- -->](sqliteplatform.md): * [BaseSqlitePlatform](https://mikro-orm.io/api/knex/class/BaseSqlitePlatform.md)
- [SqliteSchemaHelper<!-- -->](sqliteschemahelper.md): * [BaseSqliteSchemaHelper](https://mikro-orm.io/api/knex/class/BaseSqliteSchemaHelper.md)
- [SqliteTableCompiler<!-- -->](sqlitetablecompiler.md): * Sqlite3DialectTableCompiler
- [StringType<!-- -->](stringtype.md): * [Type](https://mikro-orm.io/api/core/class/Type.md)\
- [SyncCacheAdapter<!-- -->](synccacheadapter.md): * [CacheAdapter](https://mikro-orm.io/api/core/interface/CacheAdapter.md)
- [SyntaxErrorException<!-- -->](syntaxerrorexception.md): Exception for a syntax error in a statement detected in the driver.
- [TSMigrationGenerator<!-- -->](tsmigrationgenerator.md): * [MigrationGenerator](https://mikro-orm.io/api/migrations/class/MigrationGenerator.md)
- [Table<!-- -->](table.md): * **schema\_name
- [TableDifference<!-- -->](tabledifference.md): * **addedChecks
- [TableExistsException<!-- -->](tableexistsexception.md): Exception for an already existing table referenced in a statement detected in the driver.
- [TableNotFoundException<!-- -->](tablenotfoundexception.md): Exception for an unknown table referenced in a statement detected in the driver.
- [TextType<!-- -->](texttype.md): * [Type](https://mikro-orm.io/api/core/class/Type.md)\
- [TimeType<!-- -->](timetype.md): * [Type](https://mikro-orm.io/api/core/class/Type.md)
- [TinyIntType<!-- -->](tinyinttype.md): * [Type](https://mikro-orm.io/api/core/class/Type.md)\
- [TransactionContext<!-- -->](transactioncontext.md): * **constructor
- [TransactionEventArgs<!-- -->](transactioneventargs.md): * Omit, entity | meta | changeSet>
- [TransactionEventBroadcaster<!-- -->](transactioneventbroadcaster.md): * **constructor
- [TransactionManager<!-- -->](transactionmanager.md): Manages transaction lifecycle and propagation for EntityManager.
- [TransactionOptions<!-- -->](transactionoptions.md): * **clear
- [TransactionPropagation<!-- -->](transactionpropagation.md): * **MANDATORY
- [TransactionStateError<!-- -->](transactionstateerror.md): * [ValidationError](https://mikro-orm.io/api/core/class/ValidationError.md)
- [Transactional<!-- -->](transactional.md): * ****Transactional**\(options): MethodDecorator
- [TransformContext<!-- -->](transformcontext.md): * **force
- [TruncateQueryBuilder<!-- --> \<T>](truncatequerybuilder.md): * [RunQueryBuilder](https://mikro-orm.io/api/knex/interface/RunQueryBuilder.md)\
- [TsMorphMetadataProvider<!-- -->](tsmorphmetadataprovider.md): * [MetadataProvider](https://mikro-orm.io/api/core/class/MetadataProvider.md)
- [abstractType<!-- --> \<JSType, DBType>](type.md): * *Type*
- [TypeConfig<!-- -->](typeconfig.md): * **forceObject
- [Uint8ArrayType<!-- -->](uint8arraytype.md): * [Type](https://mikro-orm.io/api/core/class/Type.md)\
- [UnderscoreNamingStrategy<!-- -->](underscorenamingstrategy.md): * [AbstractNamingStrategy](https://mikro-orm.io/api/core/class/AbstractNamingStrategy.md)
- [UnicodeString<!-- -->](unicodestring.md): * **constructor
- [UnicodeStringType<!-- -->](unicodestringtype.md): * [Type](https://mikro-orm.io/api/core/class/Type.md)\
- [Unique<!-- -->](unique.md): * ****Unique**\(options): (target, propertyName) => any
- [UniqueConstraintViolationException<!-- -->](uniqueconstraintviolationexception.md): Exception for a unique constraint violation detected in the driver.
- [UniqueOptions<!-- --> \<T, H>](uniqueoptions.md): * BaseOptions\
- [UnitOfWork<!-- -->](unitofwork.md): * **constructor
- [UnknownType<!-- -->](unknowntype.md): * [Type](https://mikro-orm.io/api/core/class/Type.md)\
- [UpdateOptions<!-- --> \<T>](updateoptions.md): * **ctx
- [UpdateQueryBuilder<!-- --> \<T>](updatequerybuilder.md): * [RunQueryBuilder](https://mikro-orm.io/api/knex/interface/RunQueryBuilder.md)\
- [UpdateSchemaOptions<!-- --> \<DatabaseSchema>](updateschemaoptions.md): * **dropDb
- [UpsertManyOptions<!-- --> \<Entity, Fields>](upsertmanyoptions.md): * [UpsertOptions](https://mikro-orm.io/api/core/interface/UpsertOptions.md)\
- [UpsertOptions<!-- --> \<Entity, Fields>](upsertoptions.md): * Omit, up...
- [Utils<!-- -->](utils.md): * **constructor
- [UuidType<!-- -->](uuidtype.md): * [Type](https://mikro-orm.io/api/core/class/Type.md)\
- [ValidationError<!-- --> \<T>](validationerror.md): * Error
- [WrappedEntity<!-- --> \<Entity>](wrappedentity.md): * **constructor
- [Advanced](advanced.md)
- [API](api.md): * [v](https://mikro-orm.io/api/better-sqlite.md)
- [Archive](archive.md): * [August 27](https://mikro-orm.io/blog/mikro-orm-6-5-released.md)
- [assign<!-- -->](assign.md): * ****assign**\(entity, data, options): [MergeSelected](https://mikro-orm.io/api/core.m...
- [Authors](authors.md): * [![Martin Adámek](https://avatars1.githubusercontent.com/u/615580?s=460\&v=4)](https://github.com/B4nan)
- [@mikro-orm/better-sqlite<!-- -->](better-sqlite.md): * [**AbstractNamingStrategy](https://mikro-orm.io/api/better-sqlite.md#AbstractNamingStrategy)
- [Blog](blog.md): ·
- [Result cache](caching.md): MikroORM has a simple result caching mechanism. It works with those methods of`EntityManager`:`find()`,`findOne()`...
- [Cascading persist, merge and remove](cascading.md): From v4.2, cascade merging is no longer configurable (and is kept enabled for all relations).
- [Changelog](changelog.md): All notable changes to this project will be documented in this file. See [Conventional Commits](https://conventionalc...
- [@mikro-orm/cli<!-- -->](cli.md)
- [Collections](collections.md): `OneToMany`and`ManyToMany`properties are stored in a`Collection`wrapper.
- [compareArrays<!-- -->](comparearrays.md): * ****compareArrays**(a, b): boolean
- [compareBooleans<!-- -->](comparebooleans.md): * ****compareBooleans**(a, b): boolean
- [compareBuffers<!-- -->](comparebuffers.md): * ****compareBuffers**(a, b): boolean
- [compareObjects<!-- -->](compareobjects.md): * ****compareObjects**(a, b): boolean
- [Composite and Foreign Keys as Primary Key](composite-keys.md): Support for composite keys was added in version 3.5
- [@mikro-orm/core<!-- -->](core.md): * [**DefineConfig](https://mikro-orm.io/api/core/namespace/DefineConfig.md)
- [createSqlFunction<!-- -->](createsqlfunction.md): * ****createSqlFunction**\(func, key): R
- [Creating Custom Driver](custom-driver.md): If you want to use database that is not currently supported, you can implement your own driver. To do so, you will ne...
- [Custom Types](custom-types.md): You can define custom types by extending`Type`abstract class. It has several optional methods:
- [Dataloaders](dataloaders.md): The n+1 problem is when multiple types of data are requested in one query, but where n requests are required instead ...
- [Decorators](decorators.md): Some options affect how the [Schema Generator](https://mikro-orm.io/docs/schema-generator.md) works, and those are SQ...
- [defineEntity<!-- -->](defineentity.md): * ****defineEntity**\(meta): [EntitySchema](https://mikro-orm.io/api/core/class/EntitySchema.md...
- [Defining Entities](defining-entities.md): Entities are simple javascript objects (so called POJO) without restrictions and without the need to extend base clas...
- [Deployment](deployment.md): Under the hood,`MikroORM`uses [`ts-morph`](https://github.com/dsherret/ts-morph) to read TypeScript source files of...
- [Separating Concerns using Embeddables](embeddables.md): Support for embeddables was added in version 4.0
- [Using Entity Constructors](entity-constructors.md): Internally,`MikroORM`never calls entity constructor on managed entities (those loaded via`EntityManager`), so you ...
- [@mikro-orm/entity-generator<!-- -->](entity-generator.md): * [**EntityGenerator](https://mikro-orm.io/api/entity-generator/class/EntityGenerator.md)
- [EntityHelper and Decorated Entities](entity-helper.md): When you want to update entity based on user input, you will usually have just plain string IDs of entity relations a...
- [Working with Entity Manager](entity-manager.md): There are 2 methods we should first describe to understand how persisting works in MikroORM:`em.persist()`and`em.f...
- [Defining Entities via EntitySchema](entity-schema.md): With`EntitySchema`helper we define the schema programmatically.
- [equals<!-- -->](equals.md): * ****equals**(a, b): boolean
- [Events and Lifecycle Hooks](events.md): There are two ways to hook to the lifecycle of an entity:
- [Examples](examples.md)
- [Frequently Asked Questions](faq.md): There are two ways:
- [Filters](filters.md): MikroORM has the ability to pre-define filter criteria and attach those filters to given entities. The application ca...
- [Chapter 1: First Entity](first-entity.md): Before we start, ensure you meet the following pre-requisites first:
- [Index<!-- -->](function.md): * ****Index**\(options): (target, propertyName) => any
- [Fundamentals](fundamentals.md)
- [Getting Started Guide](guide.md): MikroORM is a TypeScript ORM for Node.js based on Data Mapper, Unit of Work, and Identity Map patterns. In this guide...
- [Handling Transactions and Concurrency in MikroORM](handling-transactions-and-concurrency-in-mikroorm.md): ·
- [Identity Map and Request Context](identity-map.md): `MikroORM`uses identity map in background, so we will always get the same instance of one entity.
- [Index](index.md): MikroORM allows handling [transactions](https://mikro-orm.io/docs/transactions.md) automatically. When you call`em.f...
- [Inheritance Mapping](inheritance-mapping.md): A mapped superclass is an abstract or concrete class that provides persistent entity state and mapping information fo...
- [Introducing MikroORM, TypeScript data-mapper ORM with Identity Map](introducing-mikroorm-typescript-data-mapper-orm-with-identity-map.md): ·
- [Javascript](javascript.md): ·
- [Using JSON properties](json-properties.md): Each database driver behaves a bit differently when it comes to JSON properties: Some will parse the values for you a...
- [@mikro-orm/libsql<!-- -->](libsql.md): * [**AbstractNamingStrategy](https://mikro-orm.io/api/libsql.md#AbstractNamingStrategy)
- [Relationship Loading Strategies](loading-strategies.md): MikroORM supports three loading strategies:
- [Logging](logging.md): For development purposes it might come handy to enable logging and debug mode:
- [@mikro-orm/mariadb<!-- -->](mariadb.md): * [**AbstractNamingStrategy](https://mikro-orm.io/api/mariadb.md#AbstractNamingStrategy)
- [Metadata Cache](metadata-cache.md): In v4 and later versions, we need to explicitly install`@mikro-orm/reflection`to use`TsMorphMetadataProvider`.
- [Metadata Providers](metadata-providers.md): As part of entity discovery process, MikroORM uses so called`MetadataProvider`to get necessary type information abo...
- [@mikro-orm/migrations<!-- -->](migrations.md): * [**MigrateOptions](https://mikro-orm.io/api/migrations.md#MigrateOptions)
- [MikroORM 3: Knex.js, CLI, Schema Updates, Entity Generator and more…](mikro-orm-3-released.md): ·
- [MikroORM 4.1: Let’s talk about performance](mikro-orm-4-1-released.md): ·
- [MikroORM 4: Filling the Gaps](mikro-orm-4-released.md): ·
- [MikroORM 5.8 released](mikro-orm-5-8-released.md): ·
- [MikroORM 5: Stricter, Safer, Smarter](mikro-orm-5-released.md): ·
- [MikroORM 6.2: Say hello to SQL Server (and libSQL)](mikro-orm-6-2-released.md): ·
- [MikroORM 6.3: Schema first?](mikro-orm-6-3-released.md): ·
- [MikroORM 6.4](mikro-orm-6-4-released.md): ·
- [MikroORM 6.5](mikro-orm-6-5-released.md): ·
- [MikroORM 6.6](mikro-orm-6-6-released.md): ·
- [MikroORM 6: Polished](mikro-orm-6-released.md): ·
- [@mikro-orm/mongodb<!-- -->](mongodb.md): * [**ObjectId](https://mikro-orm.io/api/mongodb/class/ObjectId.md)
- [@mikro-orm/mssql<!-- -->](mssql.md): * [**AbstractNamingStrategy](https://mikro-orm.io/api/mssql.md#AbstractNamingStrategy)
- [Using Multiple Schemas](multiple-schemas.md): In MySQL and PostgreSQL it is possible to define your entities in multiple schemas. In MySQL terminology, it is calle...
- [@mikro-orm/mysql<!-- -->](mysql.md): * [**AbstractNamingStrategy](https://mikro-orm.io/api/mysql.md#AbstractNamingStrategy)
- [Naming Strategy](naming-strategy.md): When mapping our entities to database tables and columns, their names will be defined by naming strategy. There are 3...
- [Oop](oop.md): ·
- [parseJsonSafe<!-- -->](parsejsonsafe.md): * ****parseJsonSafe**\(value): T
- [Populating relations](populating-relations.md): `MikroORM`is capable of loading large nested structures while maintaining good performance, querying each database t...
- [@mikro-orm/postgresql<!-- -->](postgresql.md): * [**AbstractNamingStrategy](https://mikro-orm.io/api/postgresql.md#AbstractNamingStrategy)
- [Chapter 3: Project Setup](project-setup.md): So far we were just toying around with our entities, let's start building something real. We said we will use Fastify...
- [Propagation](propagation.md): By default, MikroORM will propagate all changes made to one side of bidirectional relations to the other side, keepin...
- [Property Validation](property-validation.md): Entity properties are by default considered as required, and as such, they will be validated on both type level and r...
- [Using Query Builder](query-builder.md): info
- [Query Conditions](query-conditions.md): When you want to make complex queries, we can easily end up with a lot of boilerplate code full of curly brackets:
- [Quick Start](quick-start.md): In this guide, you will learn how to quickly bootstrap a simple project using MikroORM. For a deeper dive, check out ...
- [quote<!-- -->](quote.md): * ****quote**(expParts, ...values): any
- [Using raw SQL query fragments](raw-queries.md): When you want to use a raw SQL fragment as part of your query, you can use the`raw()`helper. It creates a raw SQL q...
- [raw<!-- -->](raw.md): * ****raw**\(sql, params): NoInfer\
- [Read Replica Connections](read-connections.md): Users can specify multiple read connections via`replicas`option. You can provide only fields that differ from maste...
- [Recipes](recipes.md)
- [ref<!-- -->](ref.md): shortcut for`wrap(entity).toReference()`
- [@mikro-orm/reflection<!-- -->](reflection.md): * [**TsMorphMetadataProvider](https://mikro-orm.io/api/reflection/class/TsMorphMetadataProvider.md)
- [rel<!-- -->](rel.md): shortcut for`Reference.createNakedFromPK(entityType, pk)`
- [Chapter 2: Relationships](relationships.md): In this section, we will add more entities, create a common base entity to extend from, and define relationships betw...
- [Entity Repository](repositories.md): Entity Repositories are thin layers on top of`EntityManager`. They act as an extension point, so you can add custom ...
- [Schema First Guide](schema-first-guide.md): Although MikroORM is primarily a "code first" ORM, it can also be used in a "schema first" approach.
- [Schema Generator](schema-generator.md): SchemaGenerator can do harm to your database. It will drop or alter tables, indexes, sequences and such. Please use t...
- [Search the documentation](search.md): ⭐️ If you like MikroORM, give it a star on [GitHub](https://github.com/mikro-orm/mikro-orm) and consider [sponsoring]...
- [Seeding](seeding.md): When initializing your application or testing it can be exhausting to create sample data for your database. The solut...
- [serialize<!-- -->](serialize.md): Converts entity instance to POJO, converting the`Collection`s to arrays and unwrapping the`Reference`wrapper, whil...
- [Serializing](serializing.md): By default, the ORM will define a`toJSON`method on all of your entity prototypes during discovery. This means that ...
- [Sql](sql.md): ·
- [@mikro-orm/sqlite<!-- -->](sqlite.md): * [**AbstractNamingStrategy](https://mikro-orm.io/api/sqlite.md#AbstractNamingStrategy)
- [Tags](tags.md): * [javascript13](https://mikro-orm.io/blog/tags/javascript.md)
- [Transactions and Concurrency](transactions.md): Starting v3.4, transactions are also supported in [MongoDB driver](https://mikro-orm.io/docs/usage-with-mongo.md).
- [Type-Safe Relations](type-safe-relations.md): Entity relations are mapped to entity references - instances of the entity that have at least the primary key availab...
- [Chapter 5: Type-safety](type-safety.md): Entity relations are mapped to entity references - instances of the entity that have at least the primary key availab...
- [Typescript](typescript.md): ·
- [Unit of Work and Transactions](unit-of-work.md): MikroORM uses the Identity Map pattern to track objects. Whenever you fetch an object from the database, MikroORM wil...
- [Upgrading from v2 to v3](upgrading-v2-to-v3.md): Following sections describe (hopefully) all breaking changes, most of them might be not valid for you, like if you do...
- [Upgrading from v3 to v4](upgrading-v3-to-v4.md): Following sections describe (hopefully) all breaking changes, most of them might be not valid for you, like if you do...
- [Upgrading from v4 to v5](upgrading-v4-to-v5.md): Following sections describe (hopefully) all breaking changes, most of them might be not valid for you, like if you do...
- [Upgrading from v5 to v6](upgrading-v5-to-v6.md): Following sections describe (hopefully) all breaking changes, most of them might be not valid for you, like if you do...
- [Upgrading](upgrading.md)
- [Using MikroORM with AdminJS](usage-with-adminjs.md): To use MikroORM with AdminJS you need to install:
- [Usage with Jest](usage-with-jest.md): When testing your own code that uses [Jest](https://jestjs.io/) for the tests, and MikroORM for the database, there a...
- [Usage with JavaScript](usage-with-js.md): Since MikroORM 3.2, we can use`EntitySchema`helper to define own entities without decorators, which works also for ...
- [Usage with MongoDB](usage-with-mongo.md): To use MikroORM with mongo database, do not forget to install`@mikro-orm/mongodb`dependency. Then call`MikroORM.in...
- [Using MikroORM with NestJS framework](usage-with-nestjs.md): Easiest way to integrate MikroORM to Nest is via [`@mikro-orm/nestjs`module](https://github.com/mikro-orm/nestjs). S...
- [Usage with MySQL, MariaDB, PostgreSQL or SQLite](usage-with-sql.md): To use`mikro-orm`with MySQL database, install the`@mikro-orm/mysql`dependency and set the type option to`mysql`...
- [Usage with transpilers](usage-with-transpilers.md): When compiling TS via babel, decorators are by default handled different implementation than what`tsc`uses. To make...
- [Using native BigInt PKs (MySQL and PostgreSQL)](using-bigint-pks.md): Since v6,`bigint`s are represented by the native`BigInt`type, and as such, they don't require explicit type in the...
- [MikroORM documentation versions](versions.md): ⭐️ If you like MikroORM, give it a star on [GitHub](https://github.com/mikro-orm/mikro-orm) and consider [sponsoring]...
- [Virtual Entities](virtual-entities.md): Virtual entities don't represent any database table. Instead, they dynamically resolve to an SQL query (or an aggrega...
- [wrap<!-- -->](wrap.md): wraps entity type with WrappedEntity internal properties and helpers like init/isInitialized/populated/toJSON use`pr...