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DBIx::Class::ResultClass::HashRefInflator - Get raw hashrefs from a resultset

DBIx::Class::ResultClass::HashRefInflator(3pm) User Contributed Perl Documentation DBIx::Class::ResultClass::HashRefInflator(3pm)

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. 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.
2016-10-21 perl v5.24.1