1Class::DBI::Plugin::RetUrsieerveCAolnlt(r3i)buted Perl DColcausmse:n:tDaBtIi:o:nPlugin::RetrieveAll(3)
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6 Class::DBI::Plugin::RetrieveAll - more complex retrieve_all() for
7 Class::DBI
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10 use base 'Class::DBI';
11 use Class::DBI::Plugin::RetrieveAll;
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13 my @by_date = My::Class->retrieve_all_sorted_by("date");
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15 # or
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17 __PACKAGE__->retrieve_all_sort_field('date');
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19 my @by_date = My::Class->retrieve_all;
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22 This is a simple plugin to a Class::DBI subclass that allows for simple
23 sorting of the results of a retrieve_all().
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25 There are two main ways to use this.
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27 Firstly, we create a new method 'retrieve_all_sorted_by' which takes an
28 argument of how to sort.
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30 We also add a method for 'retrieve_all_sort_field' that sets a default
31 field that any retrieve_all() will use for sorting.
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34 retrieve_all_sorted_by
35 my @by_date = My::Class->retrieve_all_sorted_by("date");
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37 This method will be exported into the calling class, and allows for
38 retrieving all the objects of the class, sorted by the given column.
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40 The argument given will be passed straight through to the database 'as
41 is', and is not checked in any way, so an error here will usually in an
42 error from the database, rather than Class::DBI itself.
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44 This makes it possible to pass more complex ORDER BY clauses through:
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46 my @by_date = My::Class->retrieve_all_sorted_by("date DESC, reference_no");
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48 retrieve_all_sort_field
49 __PACKAGE__->retrieve_all_sort_field('date');
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51 This method changes the default retrieve_all() in the Class to be auto-
52 sorted by the field given. Again this will be passed through directly,
53 so you can have complex ORDER BY clauses.
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56 Tony Bowden
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59 Please direct all correspondence regarding this module to:
60 bug-Class-DBI-Plugin-RetrieveAll@rt.cpan.org
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63 Copyright (C) 2004-2006 Kasei. All rights reserved.
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65 This module is free software; you can redistribute it and/or modify it
66 under the same terms as Perl itself.
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70perl v5.30.1 2020-01-29Class::DBI::Plugin::RetrieveAll(3)