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MigrationsSqlGenerator.UniqueConstraint Metoda

Definicja

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