MigrationsSqlGenerator.UniqueConstraint Metoda

  • Odwołanie

Definicja

Przestrzeń nazw:
Microsoft.EntityFrameworkCore.Migrations
Zestaw:
Microsoft.EntityFrameworkCore.Relational.dll
Pakiet:
Microsoft.EntityFrameworkCore.Relational v1.0.6
Pakiet:
Microsoft.EntityFrameworkCore.Relational v1.1.6
Pakiet:
Microsoft.EntityFrameworkCore.Relational v2.0.3
Pakiet:
Microsoft.EntityFrameworkCore.Relational v2.1.11
Pakiet:
Microsoft.EntityFrameworkCore.Relational v2.2.6
Pakiet:
Microsoft.EntityFrameworkCore.Relational v3.0.0
Pakiet:
Microsoft.EntityFrameworkCore.Relational v3.1.0
Pakiet:
Microsoft.EntityFrameworkCore.Relational v5.0.0
Pakiet:
Microsoft.EntityFrameworkCore.Relational v6.0.0
Pakiet:
Microsoft.EntityFrameworkCore.Relational v7.0.0
Pakiet:
Microsoft.EntityFrameworkCore.Relational v8.0.0

Generuje fragment SQL dla unikatowego ograniczenia elementu AddUniqueConstraintOperation.

protected virtual void UniqueConstraint (Microsoft.EntityFrameworkCore.Migrations.Operations.AddUniqueConstraintOperation operation, Microsoft.EntityFrameworkCore.Metadata.IModel model, Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder builder);
protected virtual void UniqueConstraint (Microsoft.EntityFrameworkCore.Migrations.Operations.AddUniqueConstraintOperation operation, Microsoft.EntityFrameworkCore.Metadata.IModel? model, Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder builder);
abstract member UniqueConstraint : Microsoft.EntityFrameworkCore.Migrations.Operations.AddUniqueConstraintOperation * Microsoft.EntityFrameworkCore.Metadata.IModel * Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder -> unit
override this.UniqueConstraint : Microsoft.EntityFrameworkCore.Migrations.Operations.AddUniqueConstraintOperation * Microsoft.EntityFrameworkCore.Metadata.IModel * Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder -> unit
Protected Overridable Sub UniqueConstraint (operation As AddUniqueConstraintOperation, model As IModel, builder As MigrationCommandListBuilder)

Parametry

operation
AddUniqueConstraintOperation

Operacja.

model
IModel

Model docelowy, który może mieć wartość null , jeśli operacje istnieją bez modelu.

builder
MigrationCommandListBuilder

Konstruktor poleceń używany do dodawania fragmentu SQL.

Dotyczy