/*
*
* This method handles all the grid operations
*/
protected async Task UpdateGridAsync <Dto, Entity>(DataPayLoad payLoad) where Dto : class
where Entity : class
{
GridOperationHandler <Dto> gridOperationHandler = new GridOperationHandler <Dto>(DataServices);
IEnumerable <Dto> dtoValues = payLoad.RelatedObject as IEnumerable <Dto>;
// ok now we can see if it is an insert or a delete.
try
{
if (dtoValues != null)
{
var newItems = dtoValues.Where(x =>
{
BaseViewObject baseViewObject = x as BaseViewObject;
return(baseViewObject.IsNew == true);
});
if (newItems.Any())
{
await gridOperationHandler.ExecuteInsertAsync <Entity>(newItems).ConfigureAwait(false);
}
var itemsToDelete = dtoValues.Where(x =>
{
BaseViewObject baseViewObject = x as BaseViewObject;
return(baseViewObject.IsDeleted == true);
});
if (itemsToDelete.Count() > 0)
{
await gridOperationHandler.ExecuteDeleteAsync <Entity>(itemsToDelete).ConfigureAwait(false);
}
var updateItems = dtoValues.Where(x =>
{
BaseViewObject baseViewObject = x as BaseViewObject;
return((baseViewObject.IsDirty == true) && (baseViewObject.IsNew == false));
});
if (updateItems.Count() > 0)
{
await gridOperationHandler.ExecuteUpdateAsync <Entity>(updateItems).ConfigureAwait(false);
}
for (int i = 0; i < updateItems.Count(); ++i)
{
BaseViewObject baseViewObject = updateItems.ElementAt(i) as BaseViewObject;
if (baseViewObject != null)
{
baseViewObject.IsNew = false;
baseViewObject.IsDirty = false;
}
}
}
} catch (Exception e)
{
/// FIXME: in case of exception happens that gets called twice.
var msg = "UpdateGridException " + e.Message;
throw new DataLayerException(msg);
}
}
protected async Task <bool> DeleteGridAsync <Dto, Entity>(DataPayLoad payLoad) where Dto : class
where Entity : class
{
bool retValue = false;
GridOperationHandler <Dto> gridOperationHandler = new GridOperationHandler <Dto>(DataServices);
IEnumerable <Dto> dtoValues = payLoad.RelatedObject as IEnumerable <Dto>;
if (dtoValues != null)
{
var toBeDeleted = dtoValues.Where(x =>
{
BaseViewObject baseViewObject = x as BaseViewObject;
return(baseViewObject.IsDeleted == true);
});
if (toBeDeleted.Count() > 0)
{
retValue = await gridOperationHandler.ExecuteDeleteAsync <Dto>(toBeDeleted);
}
}
return(retValue);
}