Adds IDataValueReference

src/Umbraco.Core/PropertyEditors/IDataValueEditor.cs

@@ -7,6 +7,7 @@ using Umbraco.Core.Services;
 
 namespace Umbraco.Core.PropertyEditors
 {
+
     /// <summary>
     /// Represents an editor for editing data values.
     /// </summary>
@@ -63,8 +64,26 @@ namespace Umbraco.Core.PropertyEditors
 
         // TODO: / deal with this when unplugging the xml cache
         // why property vs propertyType? services should be injected! etc...
+
+        /// <summary>
+        /// Used for serializing an <see cref="IContent"/> item for packaging
+        /// </summary>
+        /// <param name="property"></param>
+        /// <param name="dataTypeService"></param>
+        /// <param name="localizationService"></param>
+        /// <param name="published"></param>
+        /// <returns></returns>
         IEnumerable<XElement> ConvertDbToXml(Property property, IDataTypeService dataTypeService, ILocalizationService localizationService, bool published);
+
+        /// <summary>
+        /// Used for serializing an <see cref="IContent"/> item for packaging
+        /// </summary>
+        /// <param name="propertyType"></param>
+        /// <param name="value"></param>
+        /// <param name="dataTypeService"></param>
+        /// <returns></returns>
         XNode ConvertDbToXml(PropertyType propertyType, object value, IDataTypeService dataTypeService);
+
         string ConvertDbToString(PropertyType propertyType, object value, IDataTypeService dataTypeService);
     }
 }

src/Umbraco.Core/PropertyEditors/IDataValueReference.cs

@@ -0,0 +1,17 @@
+using System.Collections.Generic;
+
+namespace Umbraco.Core.PropertyEditors
+{
+    /// <summary>
+    /// Used to resolve references from <see cref="IDataValueEditor"/> values
+    /// </summary>
+    public interface IDataValueReference
+    {
+        /// <summary>
+        /// Returns any references contained in the value
+        /// </summary>
+        /// <param name="value"></param>
+        /// <returns></returns>
+        IEnumerable<Udi> GetReferences(object value);
+    }
+}

src/Umbraco.Core/Umbraco.Core.csproj

@@ -270,6 +270,7 @@
     <Compile Include="Models\PublishedContent\IPublishedContentType.cs" />
     <Compile Include="Models\PublishedContent\IPublishedPropertyType.cs" />
     <Compile Include="PropertyEditors\ConfigurationFieldsExtensions.cs" />
+    <Compile Include="PropertyEditors\IDataValueReference.cs" />
     <Compile Include="PropertyEditors\IIgnoreUserStartNodesConfig.cs" />
     <Compile Include="PublishedContentExtensions.cs" />
     <Compile Include="Models\PublishedContent\UrlMode.cs" />