DBIx::SearchBuilder::Unique(3pm)

DBIx::SearchBuilder::Unique3pm

Ensure uniqueness of records in a collection

Usage

    package Foo::Collection;
    use base 'DBIx::SearchBuilder';
    use DBIx::SearchBuilder::Unique; # mixin
    my $collection = Foo::Collection->New();
    $collection->SetupComplicatedJoins;
    $collection->OrderByMagic;
    while (my $thing = $collection->Next) {
        # $thing is going to be distinct
    }

Overview

Currently, DBIx::SearchBuilder makes exceptions for databases which cannot handle both "SELECT DISTINCT" and ordering in the same statement; it drops the "DISTINCT" requirement. This, of course, means that you can get the same row twice, which you might not want. If that's the case, use this module as a mix-in, and it will provide you with an "AddRecord" method which ensures that a record will not appear twice in the same search.

Releases

11 releases since Debian 3.1 (Sarge); the text changed 9 times.

  1. 3.1
  2. 4.0
  3. 5.0
  4. 6.0
  5. 7
  6. 8
  7. 9–10
  8. 11
  9. 12
  10. 13

From libdbix-searchbuilder-perl 1.82-1 in Debian 13 (Trixie). Parsed by carta from the page's man source.