DBIx::Class::ResultClaUserHContribDBIx::Class::ResultClass::HashRefInflator(3)NAMEDBIx::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 = $rs->next) {
...
}
DESCRIPTION
DBIx::Class is faster than older ORMs like Class::DBI but it still
isn't designed primarily for speed. Sometimes you need to quickly
retrieve the data from a massive resultset, while skipping the creation
of fancy row objects. Specifying this class as a "result_class" for a
resultset will change "$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.
perl v5.14.2DBIx::Class::ResultClass::HashRefInflator(3)