public async Task <Unit> Handle(DeleteEntitiesCommand <TContext> request, CancellationToken cancellationToken)
{
try
{
var entityType = _commandsHelper.GetEntityType(request.Entities);
var nodesId = _commandsHelper.GetEntitiesId(request.Entities);
_transactionService.StartTransaction();
var edgesCollection = _transactionService.GetCollection <EntityNode, EntityNodesCollection>();
var treeNodes = await _commandsHelper.VerifyEntities(nodesId, edgesCollection, SecurityRight.Delete);
var deletedNodes = new List <EntityNode>();
foreach (var treeNode in treeNodes)
{
deletedNodes.AddRange(await DeleteEntityAndDescendants(treeNode, edgesCollection));
}
_transactionService.CommitTransaction();
await NotifyEntitiesDeletion(deletedNodes);
return(Unit.Value);
}
catch (Exception e)
{
_transactionService.AbortTransaction();
throw new EntitiesDeleteException("Entities delete failed", e);
}
}
public async Task <Unit> Handle(DeleteFilteredEntitiesCommand <TContext, TEntity> request, CancellationToken cancellationToken)
{
var collection = _collectionService.GetCollection <TEntity>();
var entitiesToDelete = await collection.GetItems(request.Filter);
if (!entitiesToDelete.Any())
{
return(Unit.Value);
}
var command = new DeleteEntitiesCommand <TContext>(entitiesToDelete.Cast <object>());
await _mediator.Send(command);
return(Unit.Value);
}