/
rel-author.php
70 lines (65 loc) · 2.46 KB
/
rel-author.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
<?php
/**
* Plugin Name: User Contact Rel Author
* Plugin URI: http://wordpress.stackexchange.com/q/83193/6035
* Description: Two example implementations of rel="author"
* Text Domain: wpse
* Author: Christopher Davis
* Author URI: http://christopherdavis.me
* License: MIT
*
* Copyright (c) 2012 Christopher Davis <http://christopherdavis.me>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* @category WordPress
* @author Christopher Davis <http://christopherdavis.me>
* @copyright 2012 Christopher Davis
* @license http://opensource.org/licenses/MIT MIT
*/
!defined('ABSPATH') && exit;
add_filter('user_contactmethods', 'wpse83193_user_contactmethods');
/**
* Adds a Google+ field to the contact methods area in the user's profile.
*
* @param array $contact key => label pairs of contact methods
* @return array Same as the input: key => label pairs
*/
function wpse83193_user_contactmethods($contact)
{
$contact['wpse83193_google'] = __('Google+', 'wpse');
return $contact;
}
add_action('wp_head', 'wpse83193_output_contactmethods');
/**
* Spit out the rel=author link tag in the <head> section.
*
* @uses is_singular
* @uses get_user_meta
* @return void
*/
function wpse83193_output_contactmethods()
{
if (!is_singular()) {
return;
}
if ($rel = get_user_meta(get_queried_object()->post_author, 'wpse83193_google', true)) {
printf('<link rel="author" href="%s" />', esc_url($rel));
}
}