Normal•15mo ago

DidRead method never called in Model

I can see my FireEvent being called on Client 1, but then the DidRead never gets called on the other clients.

As a secondary question, should I expect DidRead to also get called on the Client that called FireEvent?

Here's my code:

using Normal.Realtime;

[RealtimeModel]
public partial class BasketModel {
    [RealtimeProperty(1, true)] private int     _trigger;
    [RealtimeProperty(2, true)] private int     _senderID;

    // Used to fire an event on all clients
    public void FireEvent(int senderID) {
        this.trigger++;
        this.senderID = senderID;
    }

    // An event that consumers of this model can subscribe to in order to respond to the event
    public delegate void EventHandler(int senderID);
    public event EventHandler eventDidFire;

    // A RealtimeCallback method that fires whenever we read any values from the server
    [RealtimeCallback(RealtimeModelEvent.OnDidRead)]
    private void DidRead()
    {
        UnityEngine.Debug.LogError("DidRead called");
        
        if (eventDidFire != null && trigger != 0)
            eventDidFire(senderID);
    }
}

using Normal.Realtime;

[RealtimeModel]
public partial class BasketModel {
    [RealtimeProperty(1, true)] private int     _trigger;
    [RealtimeProperty(2, true)] private int     _senderID;

    // Used to fire an event on all clients
    public void FireEvent(int senderID) {
        this.trigger++;
        this.senderID = senderID;
    }

    // An event that consumers of this model can subscribe to in order to respond to the event
    public delegate void EventHandler(int senderID);
    public event EventHandler eventDidFire;

    // A RealtimeCallback method that fires whenever we read any values from the server
    [RealtimeCallback(RealtimeModelEvent.OnDidRead)]
    private void DidRead()
    {
        UnityEngine.Debug.LogError("DidRead called");
        
        if (eventDidFire != null && trigger != 0)
            eventDidFire(senderID);
    }
}

kapa.ai•10/4/24, 2:02 PM

Hi @ClockworkPirate. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base.

kapa.ai•10/4/24, 2:03 PM

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The method is a that is supposed to fire whenever any values are read from the server. If it's not being called on the other clients, there could be a few reasons for this:

Network issues: Ensure that all clients are properly connected to the network and that there are no issues with the network connection.
Serialization issues: Normcore serializes all updates once per network frame (~20hz) and groups them into the same packet. If there are issues with serialization, the updates might not be sent or received properly. Make sure that your project has no compilation errors, as this could prevent changes from being visible to the model editor.
Subscription issues: Ensure that the other clients are properly subscribed to the event. If they're not subscribed, they won't receive the event when it's fired.

As for your secondary question, the method should be called on the client that called as well. This is because the method is triggered whenever any values are read from the server, regardless of which client initiated the change.

Here's a reference to the RealtimeModelEvent documentation (https://normcore.io/documentation/reference/classes/Normal.Realtime.RealtimeModelEvent) and the RealtimeCallback documentation (https://normcore.io/documentation/reference/classes/RealtimeCallbackAttribute) for more information.
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kapa.ai•10/4/24, 2:03 PM

@543448871075053570 kapa.ai is still learning and improving, please let us know how it did by reacting below

ClockworkPirateOP•10/4/24, 2:14 PM

@Normcore Assistant how can I confirm that my own client is subscribed to the DidRead? Even the sender isn't receiving this m#nethod call.

kapa.ai•10/4/24, 2:14 PM

Let me check the knowledge base for you. One moment!

kapa.ai•10/4/24, 2:14 PM

----------------------
To confirm that your client is subscribed to the event, you need to ensure that you have subscribed to the event in your code. This is the event that gets triggered inside the method.

Here's an example of how you might do this:

In this example, is a method that you define in your code. This method will be called whenever the event is triggered.

If is not being called, then there might be an issue with how you're triggering the event. In your method, you're only triggering the event if is not null and is not 0. Make sure that these conditions are being met.

If you're still having issues, you might want to add some additional logging to your and methods to help debug the issue.

Here's the documentation (https://normcore.io/documentation/guides/recipes/rpc-events#recipe) for more information.
----------------------
Note: you can ask me a follow up question by @ mentioning me again

----------------------

kapa.ai•10/4/24, 2:14 PM

@543448871075053570 kapa.ai is still learning and improving, please let us know how it did by reacting below

ClockworkPirateOP•10/4/24, 2:15 PM

@Normcore Assistant The DidRead isn't being called at all and that's the first thing that should fire.

kapa.ai•10/4/24, 2:15 PM

Let me check the knowledge base for you. One moment!

kapa.ai•10/4/24, 2:16 PM

----------------------
If the method isn't being called at all, it could be due to a few reasons:

Network Connection: Ensure that the client is properly connected to the server. If there's a network issue, the client might not be receiving updates from the server.
Model Synchronization: Make sure that the model is properly synchronized across all clients. If the model isn't synchronized, the clients might not be receiving updates.
RealtimeModelEvent Subscription: The method is a that's supposed to fire when the event is triggered. Make sure that you're properly subscribing to this event.

Here's how you can check if you're properly subscribing to the event:

In this example, should be called whenever the event is triggered. If isn't being called, then there might be an issue with how you're subscribing to the event.

If you're still having issues, you might want to check the Normcore documentation (https://normcore.io/documentation/reference/classes/Normal.Realtime.RealtimeModelEvent) for more information on how works.
----------------------
Note: you can ask me a follow up question by @ mentioning me again

----------------------

kapa.ai•10/4/24, 2:16 PM

@543448871075053570 kapa.ai is still learning and improving, please let us know how it did by reacting below

Mechabit•10/4/24, 3:40 PM

why don't you use the model property did change event?

Mechabit•10/4/24, 3:40 PM

https://normcore.io/documentation/realtime/synchronizing-custom-data#realtime-components

Synchronizing Custom Data | Normcore Documenation

In this guide, I’m going to walk you through how to synchronize custom data in your Unity application using custom realtime components.

ClockworkPirateOP•10/4/24, 4:15 PM

Ah sorted it! I ended up just using a RealtimeDictionary in the end and that seemed to sync properly.

Still unsure why the DidRead wasn't working, if anyone does know then I'd love to know the answer.

Thanks @Mechabit for your suggestion too, I'll keep that in mind in the future

maxweisel•10/5/24, 2:15 AM

worth noting there was a bug with OnDidRead that was fixed in a recent version of Normcore

maxweisel•10/5/24, 2:15 AM

you may want to use the new OnDidReadModel callback event type