On Mon, 10 Mar 2003 [EMAIL PROTECTED] wrote:
> The callback receives a DateTime parameter. The callback must return 2
> values: the value of the recurrence just before the date (that is, the
> truncated value), and the value of the recurrence after the date.
>
> For example - a yearly recurrence:
>
> $yearly_recurrence = DateTime::Set->new(
> callback => sub {
> my $date = shift;
> return (
> $date->clone->truncate( 'year' ),
> $date->clone->add( 'year' => 1 ) );
> }
> }
>
> This way, there is no need for 'start' or 'freq' parameters.
I still don't see why the first return value is needed. Can't the
recurrence just be:
my $yearly = DateTime::Set->new( recurrence => \&next_year );
# this is the current API, maybe it should change
sub next_year { $_[0]->truncate( to => 'month' );
return $_{0] + DateTime::Duration->new( years => 1 ) }
Why does the DateTime::Set class need to get both dates back? I think
that's what is confusing me.
-dave
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