Already discussed this question on stack http://stackoverflow.com/questions/43326596/watch-change-of-attribute-inside-perl-class so now it's closed :)
понедельник, 10 апреля 2017 г., 1:25:07 UTC+3 пользователь Pavel Serikov написал: > > Hi guys, > > Could you please share with me a chunk of code how do you watch attributes > change? > I found good module, Scalar::Watcher > <https://metacpan.org/pod/Scalar::Watcher>, but I can't get it work > inside a class: > > package Cat; > use Mojo::Base -base; > use Scalar::Watcher qw(when_modified); > use feature 'say'; > > has 'attr1' => 1; > has 'attr2' => 2; > > has 'test' => sub { # "fake" attribute for getting access to $self > my $self = shift; > when_modified $self->attr1, sub { $self->attr2(3); say "meow" }; > }; > > > package main; > use Data::Dumper; > > my $me = Cat->new; > $me->attr1; > warn Dumper $me; > say $me->attr1(3)->attr2; # attr2 is still 2, but must be 3 > -- You received this message because you are subscribed to the Google Groups "Mojolicious" group. To unsubscribe from this group and stop receiving emails from it, send an email to mojolicious+unsubscr...@googlegroups.com. To post to this group, send email to mojolicious@googlegroups.com. Visit this group at https://groups.google.com/group/mojolicious. For more options, visit https://groups.google.com/d/optout.
