Is it possible to add CHECK constraint with fluent API in EF7?
entity-framework-core
Question
Is it possible to add CHECK constraint with fluent API in Entity Framework 7?
I need to acheive something like this:
...
ADD CONSTRAINT CK_SomeTable_SomeColumn CHECK (SomeColumn >= X);
It is ok if solution is provider-specific - I am targeting MsSqlServer only (at least now).
Accepted Answer
As of EF 7.0.0-rc1, it isn't possible with the fluent API.
You can define the constraint manually in the migration
migrationBuilder.Sql("ALTER TABLE SomeTable ADD CONSTRAINT CK_SomeTable_SomeColumn CHECK (SomeColumn >= X);");
Popular Answer
As of EF Core 3.0, you can use
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
modelBuilder.Entity<SomeTable>(entity =>
entity.HasCheckConstraint("CK_SomeTable_SomeColumn", "[SomeColumn] >= X");
}
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