NAME¶
DBIx::Class::ResultClass::HashRefInflator - Get raw hashrefs from a resultset
SYNOPSIS¶
use DBIx::Class::ResultClass::HashRefInflator;
my $rs = $schema->resultset('CD');
$rs->result_class('DBIx::Class::ResultClass::HashRefInflator');
while (my $hashref = $rs->next) {
...
}
OR as an attribute:
my $rs = $schema->resultset('CD')->search({}, {
result_class => 'DBIx::Class::ResultClass::HashRefInflator',
});
while (my $hashref = $rs->next) {
...
}
DESCRIPTION¶
DBIx::Class is faster than older ORMs like Class::DBI but it still isn't
designed primarily for speed. Sometimes you need to quickly retrieve the data
from a massive resultset, while skipping the creation of fancy result objects.
Specifying this class as a "result_class" for a resultset will
change "$rs->next" to return a plain data hash-ref (or a list of
such hash-refs if "$rs->all" is used).
There are two ways of applying this class to a resultset:
- •
- Specify "$rs->result_class" on a specific resultset to affect
only that resultset (and any chained off of it); or
- •
- Specify "__PACKAGE__->result_class" on your source object to
force all uses of that result source to be inflated to hash-refs - this
approach is not recommended.
METHODS¶
inflate_result¶
Inflates the result and prefetched data into a hash-ref (invoked by
DBIx::Class::ResultSet)
CAVEATS¶
- •
- This will not work for relationships that have been prefetched. Consider
the following:
my $artist = $artitsts_rs->search({}, {prefetch => 'cds' })->first;
my $cds = $artist->cds;
$cds->result_class('DBIx::Class::ResultClass::HashRefInflator');
my $first = $cds->first;
$first will not be a hashref, it will be a normal CD row since
HashRefInflator only affects resultsets at inflation time, and prefetch
causes relations to be inflated when the master $artist row is
inflated.
- •
- Column value inflation, e.g., using modules like
DBIx::Class::InflateColumn::DateTime, is not performed. The returned hash
contains the raw database values.
FURTHER QUESTIONS?¶
Check the list of additional DBIC resources.
COPYRIGHT AND LICENSE¶
This module is free software copyright by the DBIx::Class (DBIC) authors. You
can redistribute it and/or modify it under the same terms as the DBIx::Class
library.