Projection saved with errors

EventStoreDB
1

Hi,

I use the version 3.0.0rc2.
I made a projection in continuous mode with c# .net. But there is an error, it miss double quotes in the “if” statement.
Even with the error, my projection is saved, when I launch the server for the first time, the projection is starting, and i can do nothing except disable it.
I can have the access to the editor, but i can’t modify any chars.

How can I remove or update it, please ?

2

Hi Catherine,

You can delete it in one of three ways:

  - using the web UI
  - using the Delete method on the ProjectionsManager class in the C# client API (https://github.com/EventStore/EventStore/blob/dev/src/EventStore/EventStore.ClientAPI/ProjectionsManager.cs#L367)
  - making an HTTP request using the DELETE method to <event store base URI>/projection/</projection name>.

You can also update the source if you made an error initially, see the Update method on the Client API, or by issuing a PUT to <event store base URI>/projection/{0}/query?type=JS (or via the UI, you’ll need to navigate to the projection and then click the Edit button).

Regards,

James

3

Thanks to reply.

I tried using the web UI, and update the projection with the Edit button but i can’t update, or write in the projection to correct the error.

I tried with the Delete and Update methods on the ProjectionsManager class in c# client API, and this doesn’t work.

And I don’t know how to make an HTTP request.

Regards,

Catherine Santos

4

Can you paste the code you’re using with the API, there’s no reason this shouldn’t work.

5

That’s the code for updating the projection. I make a loop to be sure it is trying several times. The projection has the status “stopping”.

ProjectionsManager pm = new ProjectionsManager(new ConsoleLogger(), new IPEndPoint(IPAddress.Parse(“127.0.0.1”), 2113));

bool update = true;
int i = 0;
string query = @"fromStream(‘Reservations’)
.when({
$init: function () {
return { body: ‘’, }; // initial state
},

                            ReservationEvent: function(s, e) {
                                var month = 0;
                                if(e.body.NewReservation !== null)
                                {
                                    month = e.body.NewReservation.StartDate.split('-')[1];
                                    if(month == 6 && e.body.NewReservation.IdFirm =='1dd70dbe-1913-4c8f-9435-01f41ed156a7')
                                    {
                                        s.body += e.bodyRaw;
                                    }
                                }
                                else
                                {
                                    month = e.body.OldReservation.StartDate.split('-')[1];
                                    if(month == 6 && e.body.OldReservation.IdFirm =='1dd70dbe-1913-4c8f-9435-01f41ed156a7')
                                    {
                                        s.body += e.bodyRaw;
                                    }
                                }
                                return s;
                            }
                        })";
        do
        {
            try
            {
                pm.UpdateQuery(name, query, user);
                update = true;
            }
            catch (Exception)
            {
                update = false;
                Console.WriteLine(i++);
            }
        } while (!update);

``

And that the code for deleting.

bool deleted = true;

       int i = 0;

        do
        {
            try
            {
                pm.Delete(name, user);
                deleted = true;
            }
            catch (Exception)
            {
                deleted = false;
                Console.WriteLine(i++);
            }
        } while (!deleted);

``

6

Hi,

Someone knows how can i fix this problem please ?

Thanks.