public static void ApplyTransformation(ITransformable target, BaseModifications modifications, EntityFramework edmx, string[] versions, HandlePropertyModification alternativeHandler = null)
{
// For eacn property on the modifications instance, if there is a matching property on target
// then we copy the value from modification to target, if the modification value is not null
var modificationProperties = modifications.GetType().GetProperties(System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance)
.Where(x => x.DeclaringType != typeof(BaseModifications));
var targetProperties = target.GetType().GetProperties(System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance).ToDictionary(x => x.Name, x => x);
foreach (var modsProp in modificationProperties)
{
var modsValue = modsProp.GetValue(modifications);
if (null == modsValue)
{
continue;
}
if (null != alternativeHandler && alternativeHandler(modsProp.Name, modsValue))
{
continue;
}
Type modificationType;
if (modsProp.IsModificationDictionary(out modificationType))
{
PropertyInfo targetProp;
if (targetProperties.TryGetValue(modsProp.Name, out targetProp))
{
var targetValue = targetProp.GetValue(target);
InvokeApplyTransformationToCollection((IDictionary)modsValue, (IList)targetValue, edmx, versions);
}
else
{
Console.WriteLine($"Failed to locate a target property named '{modsProp.Name}' on '{target.GetType().Name}'.");
}
}
else if (modsProp.IsSimpleType())
{
PropertyInfo targetProp;
if (targetProperties.TryGetValue(modsProp.Name, out targetProp))
{
targetProp.SetValue(target, modsValue);
}
else
{
Console.WriteLine($"Failed to locate a target property named '{modsProp.Name}' on '{target.GetType().Name}'.");
}
}
else
{
// See if the object we're pointing at can be transformed
PropertyInfo targetProp;
if (targetProperties.TryGetValue(modsProp.Name, out targetProp))
{
object targetPropertyValue = targetProp.GetValue(target);
if (null == targetPropertyValue)
{
// Create a new default instance of this class, since we're trying to set properties on it
targetPropertyValue = CreateNewInstanceOfType(targetProp.PropertyType);
// Store the newly created instance back on the target object
targetProp.SetValue(target, targetPropertyValue);
}
ITransformable transformableTargetProperty = targetPropertyValue as ITransformable;
if (null != transformableTargetProperty)
{
transformableTargetProperty.ApplyTransformation((BaseModifications)modsValue, edmx, versions);
continue;
}
}
//Unsupported
throw new NotSupportedException();
}
}
}