/// <summary>
/// Configures the property to map to a computed column when targeting a relational database.
/// </summary>
/// <param name="propertyBuilder"> The builder for the property being configured. </param>
/// <param name="sql"> The SQL expression that computes values for the column. </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,
/// <see langword="null" /> otherwise.
/// </returns>
public static IConventionPropertyBuilder HasComputedColumnSql(
[NotNull] this IConventionPropertyBuilder propertyBuilder,
[CanBeNull] string sql,
bool fromDataAnnotation = false)
{
if (!propertyBuilder.CanSetComputedColumnSql(sql, fromDataAnnotation))
{
return(null);
}
propertyBuilder.Metadata.SetComputedColumnSql(sql, fromDataAnnotation);
return(propertyBuilder);
}