Op 17-3-2011 21:27, Joe Landman schreef:
On 03/17/2011 04:27 PM, Andrew Rodland wrote:
On Thursday, March 17, 2011 02:51:59 PM Joe Landman wrote:
Hi folks
We have a Catalyst app we've developed since about 2005 or so. We
put it aside in late 2008, and haven't touched it until now.
I wanted to see if it would still work (as it turns out, we can
reuse
this for a new project).
Before we get into this in depth, are there any pointers/blog
posts/articles about forward porting an application (this was
pre-Moose), or whether or not the app would work without forward
porting?
Basically we don't want to have to redevelop everything we put into
that (login/authentication, views, etc.), and simply add to the
existing
app with a limited set of changes to make it current would be ideal.
Thanks!
Joe
It's the intention of the Catalyst dev team that new releases don't
break
existing apps. The 5.7 to 5.8 transition broke that promise
*slightly* more
than most releases (mostly due to the C3 MRO), but a great many apps
written
for 5.7 will still run without any changes on 5.8, and of the
remainder, 99%
will only need very small changes. Rewriting your code to make
explicit use of
Moose is *not* required. Just deploy the app with the current version of
Catalyst and current versions of any plugins it uses, and if there
are any
errors or warnings on startup, use them as guidance. If you run into
a nut you
can't crack, please feel free to come back for advice, but you should
start
out by just trying to run the app.
For laughs, I just tried it, and modulo some module updates, it
appears to work.
Thanks folks, this is great! Should speed our development quite a bit!
Andrew
It's also worth it to take a look at
http://search.cpan.org/dist/Catalyst-Runtime/lib/Catalyst/Upgrading.pod
and http://search.cpan.org/dist/Catalyst-Runtime/lib/Catalyst/Delta.pod
for a complete overview of important changes that you might need to
apply when upgrading.
--
Christiaan Kras
http://blog.htbaa.com
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