[Koha-bugs] [Bug 19196] Add pagination helpers

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=19196

Tomás Cohen Arazi <tomascohen at gmail.com> changed:

           What    |Removed                     |Added
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  Attachment #66600|0                           |1
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--- Comment #5 from Tomás Cohen Arazi <tomascohen at gmail.com> ---
Created attachment 66610
  -->
https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=66610&action=edit
Bug 19196: Add Koha::REST::Plugin::Pagination

This patch introduces a Mojolicious plugin to be used on the REST api.
It adds two helper methods:

total_count_header
==================

When used, it adds an _X-Total-Count_ header with the value it got passed
like this:

    my $patrons = Koha::Patrons->search;
    my $count = $patrons->count;

    $c->total_count_header({ total => $count });

=> Response contains
 X-Total-Count: $count

links_header
============

When used, it adds a _Link_ header to the reponse with the calculated
values for pagination, like this:

    my $patrons = Koha::Patrons->search;
    my $count = $patrons->count;

    $c->links_header({ total => $count, page => 2, per_page => 2 });

To test:
- Run:
  $ sudo koha-shell kohadev
 k$ cd kohaclone
 k$ prove t/Koha/REST/Plugin/Pagination.t
=> SUCCESS: Tests pass!
- Sign off :-D

Sponsored-by: ByWater solutions
Sponsored-by: Camden County

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