Discussion:
Using 'state' in a helper
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Viktor Nacht
2018-11-20 01:17:57 UTC
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Does using state inside a helper last for the duration of the connection,
or something longer lasting like a process, worker, etc?

I want to create (and return) a current DateTime object and make it
accessible to multiple helpers and templates during a connection.

I saw this Gist, but I'm not sure it pertains to per-connection:

https://gist.github.com/s1037989/179d53b86e46ae788f62

V
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Dan Book
2018-11-20 02:01:09 UTC
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A 'state' variable lasts for the rest of that process, but is only
available to the scope it's declared in. If you want per-connection (or
more precisely per request), I recommend storing it in the stash, like:

helper foo => sub {
my $c = shift;
return $c->stash->{'myapp.foo'} //= ...;
};

-Dan
Post by Viktor Nacht
Does using state inside a helper last for the duration of the connection,
or something longer lasting like a process, worker, etc?
I want to create (and return) a current DateTime object and make it
accessible to multiple helpers and templates during a connection.
https://gist.github.com/s1037989/179d53b86e46ae788f62
V
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Daniel Mantovani
2018-11-20 21:12:46 UTC
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Hi, not sure if this is what you need, but I wrote an example on how to
trigger some state machine with a post request, and later be able to check
some status with other requests:

https://github.com/dmanto/mojo-stateful-server-experiment/blob/master/stateful.pl

Hope it can help
BR,
Daniel
Post by Dan Book
A 'state' variable lasts for the rest of that process, but is only
available to the scope it's declared in. If you want per-connection (or
helper foo => sub {
my $c = shift;
return $c->stash->{'myapp.foo'} //= ...;
};
-Dan
Post by Viktor Nacht
Does using state inside a helper last for the duration of the connection,
or something longer lasting like a process, worker, etc?
I want to create (and return) a current DateTime object and make it
accessible to multiple helpers and templates during a connection.
https://gist.github.com/s1037989/179d53b86e46ae788f62
V
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Viktor Nacht
2018-11-20 22:11:34 UTC
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*facepalm* The stash, of course. Thank you. :)
Post by Dan Book
A 'state' variable lasts for the rest of that process, but is only
available to the scope it's declared in. If you want per-connection (or
helper foo => sub {
my $c = shift;
return $c->stash->{'myapp.foo'} //= ...;
};
-Dan
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