I'll expand sri's reply a little. In your model:
sub save {
...
return $self->pg->db->update_p(...)
}
and in your controller:
sub my_route {
my $c = shift;
...
$c->model->save(...) ## save now returns a promise
->then(sub { ... render success here })
->catch(sub { ... render failure here });
}
This keeps the concerns of rendering out of your model.
Scott
On Monday, September 24, 2018 at 5:00:41 AM UTC-6, Nacho B wrote:
>
> Hi!
>
> As some of my controllers are getting too fat, I am relaying some things
> to models, starting with the database queries.
>
> Even when saving data I need to return something, an error or a true. But
> I don't want to render from the callback in the model. I would like to
> return the output in the callback to the controller, but I don't know how.
>
> I am using the controller-model structure from the blog example (
> https://github.com/mojolicious/mojo-pg/tree/master/examples/blog). It's
> very clean and easy to understand, but I don't know if the non-blocking way
> can fit in it…
>
>
>
> // in the 'party' model
>
> sub save {
> my ($self, $id, $party) = @_;
> $self->pg->db->update('party_t', $party, {id => $id} => sub {
> my ($db, $err, $results) = @_;
> if $err {
> // ... must I render here?? as JSON with the error code and text
> }
> else {
> // ... must I render here?? as JSON with the OK
> }
> });
>
> // I would like to return something to the controller!! from here, or
> from the callback
> }
>
>
>
> And for the controller… if I use $self->render_later… do the controller
> know that the render will occur in the model?
>
> Any suggestions? All the non-blocking tutorials and docs use just a "say"
> or a render, but it seems that I want to "break" the callback. Maybe I need
> another structure.
>
> Thank you in advance!
> Nacho B.
>
>
>
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