C#•5mo ago

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•5mo 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•5mo ago

what is the full exception?

Gaming

Programming

The instance of entity type 'OptimizerInstanceEntity' cannot be tracked