Pg PubSub listen from a model

[John]

Hello,

From my model I want to listen for Pg PubSub messages.  I am passing
the helper "pg" into the model as a param after creating it:

   $self->helper( pg => sub { state $pg = Mojo::Pg->new( $config->{pg}
) } );

How do I listen for messages?  This compiles but doesn't do anything as
far as I can see:

    $self->pg->pubsub->listen(location_msg => sub {
        my ($pubsub, $payload) = @_;
        $self->log->debug('location: ' . Dumper($payload));
    });

Do I need to create a Mojo loop of some sort in my model?

John

[Veesh Goldman]

Can't really tell, because you aren't showing enough code, so I would ask this: could you show the code that you're notifying the channel from?

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[John]

Code that does the notification:

https://github.com/john-/telem_control/blob/d192bd24eef370868944830f3d54ace9ca3ed081/lib/TelemControl/Model/Sensors/GPS.pm#L48

That notify is similar on what is in the base class:

https://github.com/john-/telem_control/blob/d192bd24eef370868944830f3d54ace9ca3ed081/lib/TelemControl/Model/Sensors/Base.pm#L185

Model code that attempts to receive the pubsub messages:

https://github.com/john-/telem_control/blob/d192bd24eef370868944830f3d54ace9ca3ed081/lib/TelemControl/Model/Sensors/Weather.pm#L22

Thanks,

John

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[John]

I figured out what I was doing wrong.   It was with the sending of notifications.   The condition was not being hit to send the message.  I did the basic debugging I should have done before contacting the mailing list.

John