/// <summary>
/// Discovers the siblings of the specified sortable object.
/// </summary>
static async Task <IEnumerable <ISortable> > FindSiblings(ISortable item)
{
var getSiblingsMethod = item.GetType().GetMethod("GetSiblings", BindingFlags.Public | BindingFlags.Instance);
var isAcceptable = true;
if (getSiblingsMethod == null)
{
isAcceptable = false;
}
else if (getSiblingsMethod.GetParameters().Any())
{
isAcceptable = false;
}
else if (!getSiblingsMethod.ReturnType.Implements(typeof(IEnumerable)))
{
isAcceptable = false;
}
IEnumerable <ISortable> result;
if (!isAcceptable)
{
result = (await Database.Of(item.GetType()).GetList()).Cast <ISortable>();
}
else
{
var list = new List <ISortable>();
try
{
foreach (ISortable element in getSiblingsMethod.Invoke(item, null) as IEnumerable)
{
list.Add(element);
}
}
catch (Exception ex)
{
throw new Exception($"Services.Sorter Could not process the GetSiblings method from the {item.GetType().Name} instance.", ex);
}
result = list;
}
return(result.OrderBy(i => i.Order).ToList());
}
/// <summary>
/// Discovers the siblings of the specified sortable object.
/// </summary>
static async Task <IEnumerable <ISortable> > FindSiblings(ISortable item)
{
var getSiblingsMethod = item.GetType().GetMethod("GetSiblings", BindingFlags.Public | BindingFlags.Instance);
IEnumerable <ISortable> result;
if (!IsAcceptable(getSiblingsMethod))
{
result = (await Database.Of(item.GetType()).GetList()).Cast <ISortable>();
}
else
{
var list = new List <ISortable>();
try
{
IEnumerable collection;
if (getSiblingsMethod.ReturnType.IsA <Task>())
{
collection = await(dynamic) getSiblingsMethod.Invoke(item, null) as IEnumerable <ISortable>;
}
else
{
collection = getSiblingsMethod.Invoke(item, null) as IEnumerable;
}
foreach (ISortable element in collection)
{
list.Add(element);
}
}
catch (Exception ex)
{
throw new Exception($"Services.Sorter Could not process the GetSiblings method from the {item.GetType().Name} instance.", ex);
}
result = list;
}
return(result.OrderBy(i => i.Order).ToList());
}
