/// <summary>
/// Gets the field metadata for a property of a model.
/// </summary>
/// <param name="modelType">The model type where the metadata is registered.</param>
/// <param name="modelProperty">The property to get the metadata for.</param>
/// <returns>Requested metadata, <c>null</c> if not found.</returns>
/// <exception cref="ArgumentNullException"><paramref name="modelType"/> or <paramref name="modelProperty"/> is null</exception>
protected FieldMetadata GetFieldMetadata(Type modelType, ModelProperty modelProperty)
{
if (modelType == null)
{
throw new ArgumentNullException("modelType");
}
if (modelProperty == null)
{
throw new ArgumentNullException("modelProperty");
}
if (_metadataRepository == null)
{
_metadataRepository = ServiceRepository.Instance.FindService <IDataModelMetadataRepository>();
}
var metadata = _metadataRepository.GetModelMetadata(modelType);
if (metadata != null)
{
return(metadata.GetFieldMetadata(modelProperty));
}
return(null);
}
/// <summary>
/// Initializes a new instance of the <see cref="DataModelSourceBase"/> class.
/// </summary>
protected DataModelSourceBase(IDataModelMetadataRepository metadataRepository, ILogger logger)
{
_items = new Dictionary <Type, DataModelCache>();
_metadataRepository = metadataRepository;
_logger = logger;
}
/// <summary>
/// Initializes a new instance of the <see cref="DatabaseDataModelSource"/> class.
/// </summary>
/// <param name="metadataRepository">The repository containing metadata describing the models.</param>
/// <param name="database">The database where the models are stored.</param>
public DatabaseDataModelSource(IDataModelMetadataRepository metadataRepository, IDatabase database)
: base(metadataRepository, Logger.GetLogger("DatabaseDataModelSource"))
{
_database = database;
}
/// <summary>
/// Initializes a new instance of the <see cref="DatabaseDataModelSource"/> class.
/// </summary>
/// <param name="metadataRepository">The repository containing metadata describing the models.</param>
public MemoryDataModelSource(IDataModelMetadataRepository metadataRepository)
: base(metadataRepository, Logger.GetLogger("MemoryDataModelSource"))
{
}