/// <summary>
/// Returns section required entities unique identifiers list.
/// </summary>
/// <param name="sectionMainEntity">Section main entity <see cref="ISchemaManagerItem"/> instance.</param>
/// <returns>Section required entities unique identifiers list.</returns>
private IEnumerable <Guid> GetSectionRequiredEntityIds(ISchemaManagerItem sectionMainEntity)
{
var result = new List <Guid>();
result.AddIfNotExists(sectionMainEntity.UId);
foreach (var entityNameSuffix in _sectionRelatedEntitySufixes)
{
AddUIdIfNotNull(result, EntitySchemaManager.FindItemByName(sectionMainEntity.Name + entityNameSuffix));
}
return(result);
}