On 31 Dec 2008, at 15:37, Oliver Charles wrote:
Hi,
This has hit me a few times, and I've just encountered it again, so I
thought it would be good to ask those wiser than I :)
There have been a few times where I could do with querying the
database (which I'd normally do through $c->model), but this is not
available. For example, I've added the option for users to specify how
to display dates on our website, through a variety of formats. I
thought the best way to do this, would be using a Template Toolkit
plugin:
[% USE user_date %]
The date is [% user_date.format(some_date) %].
However, this plugin needs to access the user preferences model
($c->model('UserPreference')->date_format($user)). Should I be
instantiating this model (the Catalyst model is a very lightweight
wrapper around a non-catalyst specific model) - or is there a better
option?
- Ollie
The way I do this is by overriding template_vars in my View:TT (which
has $c available) to provide format_date and format_datetime subs/
closures (I just let the user specify a TZ, but the idea is the same):
sub template_vars {
my ($self, $c) = @_;
return (
$self->NEXT::template_vars($c),
format_datetime => sub { $self->format_datetime($c, @_) },
format_date => sub { $self->format_date($c, @_) },
);
};
sub format_datetime {
my ($self, $c, $date) = @_;
return unless $date;
if ($c->user && $c->user->timezone) {
$date->set_time_zone('UTC');
$date->set_time_zone($c->user->timezone);
}
my $str = $date->strftime("%e %B %Y, %R");
$str =~ s/^ //;
return $str;
}
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