Home/ Questions/Q 8971977
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-15T18:05:56+00:00

So what I’m trying to do is an Orchard Feature that if enabled ,

  • 0

So what I’m trying to do is an Orchard Feature that if enabled, runs a separate thread (service) that queries IRepository<> of some PartRecord.

About Starting the service:

I tried starting the service on IFeatureEventHandler.Enabled(), but this gets executed only on enabling the feature, not when Orchard is started.

So i looked in the Orchard framework for anything that i can use and i found IOrchardShellEvents.Activated().

So I basicly did this:

 public class MyService : IOrchardShellEvents {

    ...More stuff...

    public void Activated() {
        running = true;
        //Run DoWork() in separate thread
    }

    public void Terminating() {
        running = false;
    }
     
    private void DoWork(){
        //do service work while running = true
    }

}

This happened to work, but I’m not sure if this is the common practice for starting a custom defined thread when Orchard starts. So please correct me if it’s not done like this..

About Repository querying problem:

The repository gets injected and at first it queries the table just fine. After a while tho, it throws an exception saying that: "Multiple simultaneous connections or connections with different connection strings inside the same transaction are not currently supported.".

It seems extremely bizzare, that a query that get executed a couple of times crashes after a while;
Here’s the code for the shows how i use the repository:

 public MyService(ServiceManager manager, IRepository<SomePartRecord> repo) {
        this.manager = manager;
        //The manager of the service uses the repository to get a single column(ExpectaId, not a PK) out of each row
        manager.LoadIds = () =>
              repo.Table.ToList().Select(record => record.ExpectaId);
    }

Note: The Func<> manager.LoadIds is called once per 10 seconds

Note: I’m using MySql Server 5.5

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    OK, so the answer to any question beginning with “how do I spin a separate thread in order to…” is “don’t”. Seriously. See for example http://ayende.com/blog/158945/thou-shall-not-do-threading-unless-you-know-what-you-are-doing

    Fortunately, Orchard provides a way to run tasks in the background without having to spin your own threads: How to run scheduled tasks in Orchard?

    • 0