/// <summary>
/// <para>
/// Attempts to configure the performance level (SERVICE_OBJECTIVE) for Azure SQL Database.
/// </para>
/// <para>
/// See Azure SQL Database documentation for supported values.
/// </para>
/// </summary>
/// <param name="modelBuilder"> The model builder. </param>
/// <param name="performanceLevel"> The expression for the performance level of the database. </param>
/// <param name="fromDataAnnotation"> Indicates whether the configuration was specified using a data annotation. </param>
/// <returns>
/// The same builder instance if the configuration was applied,
/// <c>null</c> otherwise.
/// </returns>
public static IConventionModelBuilder HasPerformanceLevelSql(
[NotNull] this IConventionModelBuilder modelBuilder, [CanBeNull] string performanceLevel, bool fromDataAnnotation = false)
{
if (modelBuilder.CanSetPerformanceLevelSql(performanceLevel, fromDataAnnotation))
{
modelBuilder.Metadata.SetPerformanceLevelSql(performanceLevel, fromDataAnnotation);
return(modelBuilder);
}
return(null);
}