public static object CleverConvertValue(object sourceValue, Type type)
{
if (IsNull(sourceValue, type))
{
return(null);
}
if (type.IsInstanceOfType(sourceValue))
{
return(sourceValue);
}
if (EnumerableTypeUtility.IsEnumerable(type))
{
Type itemType = EnumerableTypeUtility.GetItemType(type);
IList newList = EnumerableTypeUtility.CreateList(itemType);
CopyArrayItems((IEnumerable)sourceValue, itemType, newList);
if (type.IsArray)
{
Array array = Array.CreateInstance(itemType, newList.Count);
newList.CopyTo(array, 0);
return(array);
}
return(newList);
}
else
{
var newValue = Activator.CreateInstance(type);
CopyProperties(sourceValue, newValue);
return(newValue);
}
}
private static void AddEmptyCollections(TEntity entity)
{
// EF Core doesn't create empty ICollection objects for the navigation properties, which causes errors in NavigationCollectionRepository.GetNavCollection.
// This method adds all the empty collections. I'm not sure if Lazy-loading them is better, or if EF can add these itself when the entity is attached?
foreach (PropertyInfo property in typeof(TEntity).GetProperties())
{
if (!EnumerableTypeUtility.IsEnumerable(property.PropertyType))
{
continue;
}
if (property.GetValue(entity) != null)
{
continue;
}
var itemType = EnumerableTypeUtility.GetItemType(property.PropertyType);
var newList = EnumerableTypeUtility.CreateList(itemType);
property.SetValue(entity, newList);
}
}