Class::DBI::Iterator(3pm) - phpMan

Class::DBI::Iterator(3pm)      User Contributed Perl Documentation      Class::DBI::Iterator(3pm)

NAME
       Class::DBI::Iterator - Iterate over Class::DBI search results

SYNOPSIS
               my $it = My::Class->search(foo => 'bar');

               my $results = $it->count;

               my $first_result = $it->first;
               while ($it->next) { ... }

               my @slice = $it->slice(10,19);
               my $slice = $it->slice(10,19);

               $it->reset;

               $it->delete_all;

DESCRIPTION
       Any Class::DBI search (including a has_many method) which returns multiple objects can be
       made to return an iterator instead simply by executing the search in scalar context.

       Then, rather than having to fetch all the results at the same time, you can fetch them one
       at a time, potentially saving a considerable amount of processing time and memory.

CAVEAT
       Note that there is no provision for the data changing (or even being deleted) in the
       database inbetween performing the search and retrieving the next result.

perl v5.32.0                                2020-12-28                  Class::DBI::Iterator(3pm)

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