# Class NpgsqlDatabaseModelExtensions

Namespace
  Microsoft.EntityFrameworkCore

Assembly
  Npgsql.EntityFrameworkCore.PostgreSQL.dll

This is an internal API that supports the Entity Framework Core infrastructure and not subject to the same compatibility standards as public APIs. It may be changed or removed without notice in any release. You should only use it directly in your code with extreme caution and knowing that doing so can result in application failures when updating to a new Entity Framework Core release.

    public static class NpgsqlDatabaseModelExtensions

Inheritance
  object
  NpgsqlDatabaseModelExtensions

Inherited Members
  object.Equals(object)
  object.Equals(object, object)
  object.GetHashCode()
  object.GetType()
  object.MemberwiseClone()
  object.ReferenceEquals(object, object)
  object.ToString()

## Methods

### GetOrAddPostgresExtension(DatabaseModel, string?, string, string?)

This is an internal API that supports the Entity Framework Core infrastructure and not subject to the same compatibility standards as public APIs. It may be changed or removed without notice in any release. You should only use it directly in your code with extreme caution and knowing that doing so can result in application failures when updating to a new Entity Framework Core release.

    public static PostgresExtension GetOrAddPostgresExtension(this DatabaseModel model, string? schema, string name, string? version)

#### Parameters

`model` DatabaseModel
`schema` string
`name` string
`version` string

#### Returns

PostgresExtension

### GetPostgresEnums(DatabaseModel)

This is an internal API that supports the Entity Framework Core infrastructure and not subject to the same compatibility standards as public APIs. It may be changed or removed without notice in any release. You should only use it directly in your code with extreme caution and knowing that doing so can result in application failures when updating to a new Entity Framework Core release.

    public static IReadOnlyList<PostgresEnum> GetPostgresEnums(this DatabaseModel model)

#### Parameters

`model` DatabaseModel

#### Returns

IReadOnlyList<PostgresEnum>

### GetPostgresExtensions(DatabaseModel)

This is an internal API that supports the Entity Framework Core infrastructure and not subject to the same compatibility standards as public APIs. It may be changed or removed without notice in any release. You should only use it directly in your code with extreme caution and knowing that doing so can result in application failures when updating to a new Entity Framework Core release.

    public static IReadOnlyList<PostgresExtension> GetPostgresExtensions(this DatabaseModel model)

#### Parameters

`model` DatabaseModel

#### Returns

IReadOnlyList<PostgresExtension>