/// <summary>
/// Creates a map to a strong type from an Umbraco document type.
/// </summary>
/// <typeparam name="TDestination">The type to map to.</typeparam>
/// <param name="documentTypeAlias">The document type alias to map from.</param>
/// <returns>Further mapping configuration</returns>
/// <exception cref="DocumentTypeNotFoundException">
/// If the <paramref name="documentTypeAlias"/> could not be found
/// </exception>
public INodeMappingExpression <TDestination> CreateMap <TDestination>(string documentTypeAlias)
where TDestination : class, new()
{
var destinationType = typeof(TDestination);
// Remove current mapping if any
if (NodeMappers.ContainsKey(destinationType))
{
NodeMappers.Remove(destinationType);
}
// Get document type
var docType = ApplicationContext.Current.Services.ContentTypeService.GetContentType(documentTypeAlias);
if (docType == null)
{
throw new DocumentTypeNotFoundException(documentTypeAlias);
}
var nodeMapper = new NodeMapper(this, destinationType, docType);
NodeMappers[destinationType] = nodeMapper;
if (_cacheProvider != null)
{
_cacheProvider.Clear();
}
return(new NodeMappingExpression <TDestination>(this, nodeMapper));
}
/// <summary>
/// Maps a basic property value.
/// </summary>
/// <param name="mapping">
/// The mapping for the property value. Cannot be null.
/// </param>
/// <param name="sourcePropertyType">
/// The type of the first parameter being supplied to <paramref name="mapping"/>.
/// Cannot be <c>null</c>.
/// </param>
/// <param name="sourcePropertyAlias">
/// The alias of the node property to map from. Required.
/// </param>
/// <param name="nodeMapper"></param>
/// <param name="destinationProperty"></param>
public BasicPropertyMapper(
Func<object, object> mapping,
Type sourcePropertyType,
NodeMapper nodeMapper,
PropertyInfo destinationProperty,
string sourcePropertyAlias
)
:base(nodeMapper, destinationProperty)
{
if (sourcePropertyType == null && mapping != null)
{
throw new ArgumentNullException("sourcePropertyType", "Source property type must be specified when using a mapping");
}
if (sourcePropertyAlias == null)
{
sourcePropertyAlias = NodeMapper.GetPropertyAlias(destinationProperty);
if (sourcePropertyAlias == null)
{
throw new PropertyAliasNotFoundException(sourcePropertyType, destinationProperty, sourcePropertyAlias);
}
}
SourcePropertyAlias = sourcePropertyAlias;
RequiresInclude = false;
AllowCaching = true;
_mapping = mapping;
_sourcePropertyType = sourcePropertyType;
}
/// <summary>
/// Maps a collection relationship.
/// </summary>
/// <param name="mapping">
/// Mapping to a collection of node IDs. Takes the context and source property value
/// as parameters. If <c>null</c>, the mapping will be deduced from
/// the other parameters.
/// </param>
/// <param name="sourcePropertyType">
/// The type of object being supplied to <paramref name="mapping"/>.
/// Will be set to <c>IEnumerable{int}</c> if <paramref name="mapping"/> is specified.
/// </param>
/// <param name="sourcePropertyAlias">
/// The alias of the node property to map from. If null, descendants of
/// the node which are compatible with <paramref name="destinationProperty"/>
/// will be mapped instead.
/// </param>
/// <param name="nodeMapper"></param>
/// <param name="destinationProperty"></param>
public CollectionPropertyMapper(
Func<NodeMappingContext, object, IEnumerable<int>> mapping,
Type sourcePropertyType,
NodeMapper nodeMapper,
PropertyInfo destinationProperty,
string sourcePropertyAlias
)
: base(nodeMapper, destinationProperty)
{
if (sourcePropertyType == null && mapping != null)
{
sourcePropertyType = typeof(IEnumerable<int>);
}
if (sourcePropertyAlias == null
&& mapping != null
&& !typeof(IEnumerable<int>).IsAssignableFrom(sourcePropertyType))
{
throw new ArgumentException("If specifying a mapping for a collection with no property alias, the source property type must implement IEnumerable<int>.");
}
_elementType = destinationProperty.PropertyType.GetGenericArguments().FirstOrDefault();
if (_elementType == null || !typeof(IEnumerable).IsAssignableFrom(destinationProperty.PropertyType))
{
throw new CollectionTypeNotSupportedException(destinationProperty.PropertyType);
}
Type rawCollectionType = null;
if (_elementType == typeof(int))
{
// Collection of IDs
RequiresInclude = false;
rawCollectionType = typeof(IEnumerable<int>);
}
else
{
// Collection of models
RequiresInclude = true;
rawCollectionType = typeof(IEnumerable<>).MakeGenericType(_elementType);
}
// See if the collection can be assigned, or must be instantiated
_canAssignDirectly = CheckCollectionCanBeAssigned(DestinationInfo.PropertyType, rawCollectionType);
SourcePropertyAlias = sourcePropertyAlias;
AllowCaching = true;
_mapping = mapping;
_sourcePropertyType = sourcePropertyType;
}
public NodeMappingExpression(NodeMappingEngine engine, NodeMapper mapping)
{
if (mapping == null)
{
throw new ArgumentNullException("mapping");
}
else if (mapping == null)
{
throw new ArgumentNullException("engine");
}
_nodeMapper = mapping;
_engine = engine;
}
