public async Task <IEnumerable <object> > Handle(UpdateEntitiesCommand <TContext> request, CancellationToken cancellationToken)
{
try
{
var entityType = _commandsHelper.GetEntityType(request.Entities);
_transactionService.StartTransaction();
var entityCollection = _transactionService.GetCollection(entityType);
var edgesCollection = _transactionService.GetCollection <EntityNode, EntityNodesCollection>();
await _commandsHelper.VerifyEntities(request.Entities, edgesCollection, SecurityRight.Update);
await entityCollection.Update(request.Entities);
_transactionService.CommitTransaction();
await NotifyEntitiesUpdate(request.Entities);
return(request.Entities);
}
catch (Exception e)
{
_transactionService.AbortTransaction();
throw new EntitiesUpdateException("Entities update failed", e);
}
}
public async Task <IEnumerable <TEntity> > Handle(PartialUpdateEntitiesCommand <TContext, TEntity, TField> request, CancellationToken cancellationToken)
{
try
{
_transactionService.StartTransaction();
var entityCollection = _transactionService.GetCollection <TEntity>();
var edgesCollection = _transactionService.GetCollection <EntityNode, EntityNodesCollection>();
await _commandsHelper.VerifyEntities(request.Entities, edgesCollection, SecurityRight.Update);
await entityCollection.Update <TField>(request.Entities, request.Field, request.Value);
_transactionService.CommitTransaction();
var entities = await entityCollection.GetItems(request.Entities);
await NotifyEntitiesUpdate(entities);
return(entities);
}
catch (Exception e)
{
_transactionService.AbortTransaction();
throw new EntitiesUpdateException("Entities update failed", e);
}
}
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);
}
}