protected override sealed async Task PersistModelAsync(PersistEvent @event, TModel model, Graph <TModel> graph, bool create)
{
var id = ModelAnalyzer.GetIdentity(model);
var streamName = EventStoreCommon.GetStreamName <TModel>(id);
var eventStoreModel = new EventStoreEventModelData <TModel>()
{
Source = @event.Source,
SourceType = @event.Source?.GetType().Name,
Model = model,
Graph = graph
};
var data = EventStoreCommon.Serialize(eventStoreModel);
var eventNumber = await Engine.AppendAsync(@event.ID, @event.Name, streamName, null, create?EventStoreState.NotExisting : EventStoreState.Existing, data);
if (eventNumber > 0 && eventNumber % SaveStateEvery == 0)
{
var thisEventData = (await Engine.ReadBackwardsAsync(streamName, eventNumber, 1, null, null, null))[0];
var where = ModelAnalyzer.GetIdentityExpression <TModel>(id);
var eventStates = await Repo.QueryAsync(new EventQueryMany <TModel>(thisEventData.Date, thisEventData.Date, where));
var eventState = eventStates.Where(x => x.Number == eventNumber).Single();
await SaveModelStateAsync(id, eventState.Model, eventState.Number);
}
}
protected override sealed async Task PersistModelAsync(PersistEvent @event, TModel model, Graph <TModel> graph, bool create)
{
if (create)
{
int autoGeneratedCount = ModelDetail.IdentityAutoGeneratedProperties.Count;
if (autoGeneratedCount == 1)
{
var rows = await Engine.ExecuteInsertGetIdentitiesAsync(model, graph, ModelDetail);
if (rows.Count != 1)
{
throw new Exception($"Insert failed: {(String.IsNullOrWhiteSpace(@event.Name) ? defaultEventName : @event.Name)}");
}
var identity = rows.First();
var modelPropertyInfo = ModelDetail.IdentityAutoGeneratedProperties[0];
identity = TypeAnalyzer.Convert(identity, modelPropertyInfo.Type);
modelPropertyInfo.Setter(model, identity);
}
else if (autoGeneratedCount > 1)
{
var rows = await Engine.ExecuteInsertGetIdentitiesAsync(model, graph, ModelDetail);
if (rows.Count != 1)
{
throw new Exception($"Insert failed: {(String.IsNullOrWhiteSpace(@event.Name) ? defaultEventName : @event.Name)}");
}
var identities = (IList <object>)rows.First();
var i = 0;
foreach (var modelPropertyInfo in ModelDetail.IdentityAutoGeneratedProperties)
{
object identity = modelPropertyInfo.Getter(identities[i]);
identity = TypeAnalyzer.Convert(identity, modelPropertyInfo.Type);
modelPropertyInfo.Setter(model, identity);
i++;
}
}
else
{
var rows = await Engine.ExecuteInsertAsync(model, graph, ModelDetail);
if (rows == 0)
{
throw new Exception($"No rows affected: {(String.IsNullOrWhiteSpace(@event.Name) ? defaultEventName : @event.Name)}");
}
}
}
else
{
var rowsAffected = await Engine.ExecuteUpdateAsync(model, graph, ModelDetail);
if (rowsAffected == 0)
{
throw new Exception($"No rows affected: {(String.IsNullOrWhiteSpace(@event.Name) ? defaultEventName : @event.Name)}");
}
}
}
protected override sealed async Task DeleteModelAsync(PersistEvent @event, object[] ids)
{
foreach (var id in ids)
{
var streamName = EventStoreCommon.GetStreamName <TModel>(id);
var eventNumber = await Engine.TerminateAsync(@event.ID, "Delete", streamName, null, EventStoreState.Existing);
await SaveModelStateAsync(id, null, eventNumber);
}
}
protected override sealed void DeleteModel(PersistEvent @event, object[] ids)
{
for (var i = 0; i <= ids.Length; i += deleteBatchSize)
{
var deleteIds = ids.Skip(i).Take(deleteBatchSize).ToArray();
var rowsAffected = Engine.ExecuteDelete(deleteIds, ModelDetail);
if (rowsAffected == 0)
{
throw new Exception($"No rows affected: {(String.IsNullOrWhiteSpace(@event.Name) ? defaultEventName : @event.Name)}");
}
}
}
public Persist(PersistOperation operation, PersistEvent @event)
{
this.Operation = operation;
this.Event = @event;
if (this.Event == null)
{
this.Event = new PersistEvent()
{
ID = Guid.NewGuid(),
Name = GetEventName(operation),
Source = null
};
}
else if (String.IsNullOrWhiteSpace(this.Event.Name))
{
this.Event.Name = GetEventName(operation);
}
}
public Delete(PersistEvent @event, ICollection <TModel> models, Graph <TModel> graph)
: base(PersistOperation.Delete, @event)
{
this.Models = models.ToArray();
this.Graph = graph;
}
public Delete(PersistEvent @event, ICollection <TModel> models) : this(@event, models, null)
{
}
public Delete(PersistEvent @event, TModel model, Graph <TModel> graph)
: base(PersistOperation.Delete, @event)
{
this.Models = new TModel[] { model };
this.Graph = graph;
}
public Delete(PersistEvent @event, TModel model) : this(@event, model, null)
{
}
public DeleteByID(PersistEvent @event, ICollection ids, Graph<TModel> graph)
: base(PersistOperation.Delete, @event)
{
this.IDs = ids;
this.Graph = graph;
}
public DeleteByID(PersistEvent @event, ICollection ids) : this(@event, ids, null) { }
public DeleteByID(PersistEvent @event, object id, Graph<TModel> graph)
: base(PersistOperation.Delete, @event)
{
this.IDs = new object[] { id };
this.Graph = graph;
}
public DeleteByID(PersistEvent @event, object id) : this(@event, id, null) { }