C
C#•9mo ago
SWEETPONY

The instance of entity type 'OptimizerInstanceEntity' cannot be tracked

Can someone help me to update model? 
public sealed record OptimizerSettingsSetsEntity : OptimizerSettingsSets, IIdentityEntity
{
    public new string Identity { get => base.Identity; init => base.Identity = value; }
    public List<OptimizerInstanceEntity> OptimizerInstances { get; init; } = [];
    public DateTime Created { get; init; }
    public Guid Id { get; init; }
    public DateTime Timestamp { get; init; }
    public DateTime? Updated { get; init; }
}

public sealed record OptimizerInstanceEntity : IdentityEntity
{
    public required string Url { get; set; }
}
public sealed record OptimizerSettingsSetsEntity : OptimizerSettingsSets, IIdentityEntity
{
    public new string Identity { get => base.Identity; init => base.Identity = value; }
    public List<OptimizerInstanceEntity> OptimizerInstances { get; init; } = [];
    public DateTime Created { get; init; }
    public Guid Id { get; init; }
    public DateTime Timestamp { get; init; }
    public DateTime? Updated { get; init; }
}

public sealed record OptimizerInstanceEntity : IdentityEntity
{
    public required string Url { get; set; }
}
I want to create entity, add it to database and then update only instances My command doesn't work, I got exception after trying to update: 
    protected override async Task UpdateCoreAsync(OptimizerSettingsSetsModel model, EventHandlingContext context)
    {
        var exists = await FindByIdentityAsync(model.Identity, context);
        if(exists == null)
            return;

        if(!ChangesComparer.HasChanges(exists.ToModel(), model))
            return;

        var entity = CreateEntity(model, exists);
        var entry = dbContext.OptimizerSettingsSets.Update(entity);
        await dbContext.SaveChangesAsync(context.CancellationToken);
        entry.State = EntityState.Detached;
        await eventDispatcher.OptimizerSettingsSetsUpdatedAsync(entity, context);
    }
    protected override async Task UpdateCoreAsync(OptimizerSettingsSetsModel model, EventHandlingContext context)
    {
        var exists = await FindByIdentityAsync(model.Identity, context);
        if(exists == null)
            return;

        if(!ChangesComparer.HasChanges(exists.ToModel(), model))
            return;

        var entity = CreateEntity(model, exists);
        var entry = dbContext.OptimizerSettingsSets.Update(entity);
        await dbContext.SaveChangesAsync(context.CancellationToken);
        entry.State = EntityState.Detached;
        await eventDispatcher.OptimizerSettingsSetsUpdatedAsync(entity, context);
    }
2 Replies
SWEETPONY
SWEETPONYOP•9mo ago
private OptimizerSettingsSetsEntity CreateEntity(OptimizerSettingsSetsModel model, OptimizerSettingsSetsEntity? entity)
    {
        return new OptimizerSettingsSetsEntity
        {
            Id = entity?.Id ?? default,
            OptimizerInstances = model.OptimizerInstances?
                .Select(m =>
                {
                    var found = dbContext.OptimizerInstances.FirstOrDefault(x => x.Identity == m.Identity);
                    return new OptimizerInstanceEntity
                    {
                        Id = found?.Id ?? default,
                        Identity = m.Identity,
                        Url = m.Url
                    };
                }).ToList()!,
            OptimizerSettingsParameters = model.OptimizerSettingsParameters?
                .Select(op => new OptimizerSettingsParameters
                {
                    Identity = op.Identity,
                    Value = op.Value,
                    Description = op.Description
                }).ToList()!,
            Created = entity?.Created ?? timeProvider.GetUtcNow().DateTime,
            Updated = entity == null ? null : timeProvider.GetUtcNow().DateTime,
            Identity = model.Identity
        };
    }
private OptimizerSettingsSetsEntity CreateEntity(OptimizerSettingsSetsModel model, OptimizerSettingsSetsEntity? entity)
    {
        return new OptimizerSettingsSetsEntity
        {
            Id = entity?.Id ?? default,
            OptimizerInstances = model.OptimizerInstances?
                .Select(m =>
                {
                    var found = dbContext.OptimizerInstances.FirstOrDefault(x => x.Identity == m.Identity);
                    return new OptimizerInstanceEntity
                    {
                        Id = found?.Id ?? default,
                        Identity = m.Identity,
                        Url = m.Url
                    };
                }).ToList()!,
            OptimizerSettingsParameters = model.OptimizerSettingsParameters?
                .Select(op => new OptimizerSettingsParameters
                {
                    Identity = op.Identity,
                    Value = op.Value,
                    Description = op.Description
                }).ToList()!,
            Created = entity?.Created ?? timeProvider.GetUtcNow().DateTime,
            Updated = entity == null ? null : timeProvider.GetUtcNow().DateTime,
            Identity = model.Identity
        };
    }
entity after this method should be fine.. a new entity contains a list of new instances with new values but existed ids but anyway it doesn't work
Jimmacle
Jimmacle•9mo ago
what is the full exception?

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