1DBIx::SearchBuilder::UnUisqeure(C3o)ntributed Perl DocumDeBnItxa:t:iSoenarchBuilder::Unique(3)
2
3
4

NAME

6       DBIx::SearchBuilder::Unique - Ensure uniqueness of records in a
7       collection
8

SYNOPSIS

10           package Foo::Collection;
11           use base 'DBIx::SearchBuilder';
12
13           use DBIx::SearchBuilder::Unique; # mixin
14
15           my $collection = Foo::Collection->New();
16           $collection->SetupComplicatedJoins;
17           $collection->OrderByMagic;
18
19           while (my $thing = $collection->Next) {
20               # $thing is going to be distinct
21           }
22

DESCRIPTION

24       Currently, DBIx::SearchBuilder makes exceptions for databases which
25       cannot handle both "SELECT DISTINCT" and ordering in the same
26       statement; it drops the "DISTINCT" requirement. This, of course, means
27       that you can get the same row twice, which you might not want. If
28       that's the case, use this module as a mix-in, and it will provide you
29       with an "AddRecord" method which ensures that a record will not appear
30       twice in the same search.
31

AUTHOR

33       Simon Cozens.
34

36       Copyright 2005 Best Practical Solutions, LLC
37
38       This library is free software; you can redistribute it and/or modify it
39       under the same terms as Perl itself.
40
41
42
43perl v5.30.0                      2019-07-26    DBIx::SearchBuilder::Unique(3)
Impressum