Re: Apache::Session and blessed references
Hi Jeffrey --
I'm pretty sure the problem is reproducible, but I'll rerun the dog
test case tomorrow when I get a chance and let you know whether
things are still broken. I'll also flesh it out into a complete program.
One unique thing about our configuration is that we're using Apache
1.3.12/mod_perl 1.24/Perl 5.6.0. (We're also running under Linux and
using mysql locking if it matters.) We're running Perl 5.6 because we
want to avoid the dying-in-an-eval bug in 5.005, but I can't say that I
trust 5.6 entirely -- it seems to still have a few nasty bugs. Were you
running your latest tests under 5.6? And do you think it's possible that
the bug might be a 5.6/Apache::Session interaction?
I'll write again tomorrow with more info.
Thanks,
-- Dylan
On Sun, 23 Jul 2000, Jeffrey W. Baker wrote:
On Wed, 31 May 2000, Dylan Weed wrote:
I can't seem to get Apache::Session to save the blessedness of an object.
Is this an oversight on my part, a limitation of the module, a limitation
of the database, or an intentional design decision?
Conceptually, it seems as though an objects blessing is stored in a
different place in the Perl guts than its contents. Is the problem just
that Apache::Session never saves this information to the database?
Has anyone else had occasion to do this?
An example in Perl:
# %session is a hash tied to a DB with Apache::Session 1.51
package main;
my $dog_obj = { name = 'Fido', breed = 'Mutt' };
bless ($dog_obj, 'Dog');
$dog_obj-bark();
$session{my_dog} = $dog_obj;
# The following line dies with an error:
# cannot call method bark on unblessed reference.
$session{my_dog}-bark();
package Dog;
sub bark {
my $self = shift;
print "Woof! I'm $self-{name}";
}
You know, I thought that there was a problem here when I first saw this
email, but today I simply cannot reproduce it. When I run the example
program, everything barks.
Can you still reproduce this problem, and, if so, could you please send me
a complete, working perl program as a demonstration?
Regards,
Jeffrey
Re: Apache::Session and blessed references
On Wed, 31 May 2000, Dylan Weed wrote:
I can't seem to get Apache::Session to save the blessedness of an object.
Is this an oversight on my part, a limitation of the module, a limitation
of the database, or an intentional design decision?
Conceptually, it seems as though an objects blessing is stored in a
different place in the Perl guts than its contents. Is the problem just
that Apache::Session never saves this information to the database?
Has anyone else had occasion to do this?
An example in Perl:
# %session is a hash tied to a DB with Apache::Session 1.51
package main;
my $dog_obj = { name = 'Fido', breed = 'Mutt' };
bless ($dog_obj, 'Dog');
$dog_obj-bark();
$session{my_dog} = $dog_obj;
# The following line dies with an error:
# cannot call method bark on unblessed reference.
$session{my_dog}-bark();
package Dog;
sub bark {
my $self = shift;
print "Woof! I'm $self-{name}";
}
You know, I thought that there was a problem here when I first saw this
email, but today I simply cannot reproduce it. When I run the example
program, everything barks.
Can you still reproduce this problem, and, if so, could you please send me
a complete, working perl program as a demonstration?
Regards,
Jeffrey
Re: Apache::Session and blessed references
On Wed, 31 May 2000, Dylan Weed wrote:
I can't seem to get Apache::Session to save the blessedness of an object.
Is this an oversight on my part, a limitation of the module, a limitation
of the database, or an intentional design decision?
Conceptually, it seems as though an objects blessing is stored in a
different place in the Perl guts than its contents. Is the problem just
that Apache::Session never saves this information to the database?
Has anyone else had occasion to do this?
Well, that sucks a lot. This is actually a bug in Apache::Session. If it
was working properly, blessed references should be fine. Unfortunately,
the module doesn't seem to be saving hash entries that are added
immediately after creation. I will fix this tomorrow.
Also I will add a test for this case.
An example in Perl:
# %session is a hash tied to a DB with Apache::Session 1.51
package main;
my $dog_obj = { name = 'Fido', breed = 'Mutt' };
bless ($dog_obj, 'Dog');
$dog_obj-bark();
$session{my_dog} = $dog_obj;
# The following line dies with an error:
# cannot call method bark on unblessed reference.
$session{my_dog}-bark();
package Dog;
sub bark {
my $self = shift;
print "Woof! I'm $self-{name}";
}
Re[2]: Apache::Session and blessed references
Re[2]: Apache::Session and blessed references
Apache::Session and blessed references
I can't seem to get Apache::Session to save the blessedness of an object.
Is this an oversight on my part, a limitation of the module, a limitation
of the database, or an intentional design decision?
Conceptually, it seems as though an objects blessing is stored in a
different place in the Perl guts than its contents. Is the problem just
that Apache::Session never saves this information to the database?
Has anyone else had occasion to do this?
An example in Perl:
# %session is a hash tied to a DB with Apache::Session 1.51
package main;
my $dog_obj = { name = 'Fido', breed = 'Mutt' };
bless ($dog_obj, 'Dog');
$dog_obj-bark();
$session{my_dog} = $dog_obj;
# The following line dies with an error:
# cannot call method bark on unblessed reference.
$session{my_dog}-bark();
package Dog;
sub bark {
my $self = shift;
print "Woof! I'm $self-{name}";
}
