-
Notifications
You must be signed in to change notification settings - Fork 12.5k
/
link-template.php
1524 lines (1309 loc) · 41.1 KB
/
link-template.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
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
<?php
/**
* WordPress Link Template Functions
*
* @package WordPress
* @subpackage Template
*/
/**
* Display the permalink for the current post.
*
* @since 1.2.0
* @uses apply_filters() Calls 'the_permalink' filter on the permalink string.
*/
function the_permalink() {
echo apply_filters('the_permalink', get_permalink());
}
/**
* Retrieve trailing slash string, if blog set for adding trailing slashes.
*
* Conditionally adds a trailing slash if the permalink structure has a trailing
* slash, strips the trailing slash if not. The string is passed through the
* 'user_trailingslashit' filter. Will remove trailing slash from string, if
* blog is not set to have them.
*
* @since 2.2.0
* @uses $wp_rewrite
*
* @param $string String a URL with or without a trailing slash.
* @param $type_of_url String the type of URL being considered (e.g. single, category, etc) for use in the filter.
* @return string
*/
function user_trailingslashit($string, $type_of_url = '') {
global $wp_rewrite;
if ( $wp_rewrite->use_trailing_slashes )
$string = trailingslashit($string);
else
$string = untrailingslashit($string);
// Note that $type_of_url can be one of following:
// single, single_trackback, single_feed, single_paged, feed, category, page, year, month, day, paged
$string = apply_filters('user_trailingslashit', $string, $type_of_url);
return $string;
}
/**
* Display permalink anchor for current post.
*
* The permalink mode title will use the post title for the 'a' element 'id'
* attribute. The id mode uses 'post-' with the post ID for the 'id' attribute.
*
* @since 0.71
*
* @param string $mode Permalink mode can be either 'title', 'id', or default, which is 'id'.
*/
function permalink_anchor($mode = 'id') {
global $post;
switch ( strtolower($mode) ) {
case 'title':
$title = sanitize_title($post->post_title) . '-' . $post->ID;
echo '<a id="'.$title.'"></a>';
break;
case 'id':
default:
echo '<a id="post-' . $post->ID . '"></a>';
break;
}
}
/**
* Retrieve full permalink for current post or post ID.
*
* @since 1.0.0
*
* @param int $id Optional. Post ID.
* @param bool $leavename Optional, defaults to false. Whether to keep post name or page name.
* @return string
*/
function get_permalink($id = 0, $leavename = false) {
$rewritecode = array(
'%year%',
'%monthnum%',
'%day%',
'%hour%',
'%minute%',
'%second%',
$leavename? '' : '%postname%',
'%post_id%',
'%category%',
'%author%',
$leavename? '' : '%pagename%',
);
if ( is_object($id) && isset($id->filter) && 'sample' == $id->filter )
$post = $id;
else
$post = &get_post($id);
if ( empty($post->ID) ) return false;
if ( $post->post_type == 'page' )
return get_page_link($post->ID, $leavename);
elseif ($post->post_type == 'attachment')
return get_attachment_link($post->ID);
$permalink = get_option('permalink_structure');
if ( '' != $permalink && !in_array($post->post_status, array('draft', 'pending')) ) {
$unixtime = strtotime($post->post_date);
$category = '';
if ( strpos($permalink, '%category%') !== false ) {
$cats = get_the_category($post->ID);
if ( $cats ) {
usort($cats, '_usort_terms_by_ID'); // order by ID
$category = $cats[0]->slug;
if ( $parent = $cats[0]->parent )
$category = get_category_parents($parent, false, '/', true) . $category;
}
// show default category in permalinks, without
// having to assign it explicitly
if ( empty($category) ) {
$default_category = get_category( get_option( 'default_category' ) );
$category = is_wp_error( $default_category ) ? '' : $default_category->slug;
}
}
$author = '';
if ( strpos($permalink, '%author%') !== false ) {
$authordata = get_userdata($post->post_author);
$author = $authordata->user_nicename;
}
$date = explode(" ",date('Y m d H i s', $unixtime));
$rewritereplace =
array(
$date[0],
$date[1],
$date[2],
$date[3],
$date[4],
$date[5],
$post->post_name,
$post->ID,
$category,
$author,
$post->post_name,
);
$permalink = get_option('home') . str_replace($rewritecode, $rewritereplace, $permalink);
$permalink = user_trailingslashit($permalink, 'single');
return apply_filters('post_link', $permalink, $post, $leavename);
} else { // if they're not using the fancy permalink option
$permalink = get_option('home') . '/?p=' . $post->ID;
return apply_filters('post_link', $permalink, $post, $leavename);
}
}
/**
* Retrieve permalink from post ID.
*
* @since 1.0.0
*
* @param int $post_id Optional. Post ID.
* @param mixed $deprecated Not used.
* @return string
*/
function post_permalink($post_id = 0, $deprecated = '') {
return get_permalink($post_id);
}
/**
* Retrieve the permalink for current page or page ID.
*
* Respects page_on_front. Use this one.
*
* @since 1.5.0
*
* @param int $id Optional. Post ID.
* @param bool $leavename Optional, defaults to false. Whether to keep post name or page name.
* @return string
*/
function get_page_link($id = false, $leavename = false) {
global $post;
$id = (int) $id;
if ( !$id )
$id = (int) $post->ID;
if ( 'page' == get_option('show_on_front') && $id == get_option('page_on_front') )
$link = get_option('home');
else
$link = _get_page_link( $id , $leavename );
return apply_filters('page_link', $link, $id);
}
/**
* Retrieve the page permalink.
*
* Ignores page_on_front. Internal use only.
*
* @since 2.1.0
* @access private
*
* @param int $id Optional. Post ID.
* @param bool $leavename Optional. Leave name.
* @return string
*/
function _get_page_link( $id = false, $leavename = false ) {
global $post, $wp_rewrite;
if ( !$id )
$id = (int) $post->ID;
else
$post = &get_post($id);
$pagestruct = $wp_rewrite->get_page_permastruct();
if ( '' != $pagestruct && isset($post->post_status) && 'draft' != $post->post_status ) {
$link = get_page_uri($id);
$link = ( $leavename ) ? $pagestruct : str_replace('%pagename%', $link, $pagestruct);
$link = get_option('home') . "/$link";
$link = user_trailingslashit($link, 'page');
} else {
$link = get_option('home') . "/?page_id=$id";
}
return apply_filters( '_get_page_link', $link, $id );
}
/**
* Retrieve permalink for attachment.
*
* This can be used in the WordPress Loop or outside of it.
*
* @since 2.0.0
*
* @param int $id Optional. Post ID.
* @return string
*/
function get_attachment_link($id = false) {
global $post, $wp_rewrite;
$link = false;
if (! $id) {
$id = (int) $post->ID;
}
$object = get_post($id);
if ( $wp_rewrite->using_permalinks() && ($object->post_parent > 0) && ($object->post_parent != $id) ) {
$parent = get_post($object->post_parent);
if ( 'page' == $parent->post_type )
$parentlink = _get_page_link( $object->post_parent ); // Ignores page_on_front
else
$parentlink = get_permalink( $object->post_parent );
if ( is_numeric($object->post_name) || false !== strpos(get_option('permalink_structure'), '%category%') )
$name = 'attachment/' . $object->post_name; // <permalink>/<int>/ is paged so we use the explicit attachment marker
else
$name = $object->post_name;
if (strpos($parentlink, '?') === false)
$link = user_trailingslashit( trailingslashit($parentlink) . $name );
}
if (! $link ) {
$link = get_bloginfo('url') . "/?attachment_id=$id";
}
return apply_filters('attachment_link', $link, $id);
}
/**
* Retrieve the permalink for the year archives.
*
* @since 1.5.0
*
* @param int|bool $year False for current year or year for permalink.
* @return string
*/
function get_year_link($year) {
global $wp_rewrite;
if ( !$year )
$year = gmdate('Y', time()+(get_option('gmt_offset') * 3600));
$yearlink = $wp_rewrite->get_year_permastruct();
if ( !empty($yearlink) ) {
$yearlink = str_replace('%year%', $year, $yearlink);
return apply_filters('year_link', get_option('home') . user_trailingslashit($yearlink, 'year'), $year);
} else {
return apply_filters('year_link', get_option('home') . '/?m=' . $year, $year);
}
}
/**
* Retrieve the permalink for the month archives with year.
*
* @since 1.0.0
*
* @param bool|int $year False for current year. Integer of year.
* @param bool|int $month False for current month. Integer of month.
* @return string
*/
function get_month_link($year, $month) {
global $wp_rewrite;
if ( !$year )
$year = gmdate('Y', time()+(get_option('gmt_offset') * 3600));
if ( !$month )
$month = gmdate('m', time()+(get_option('gmt_offset') * 3600));
$monthlink = $wp_rewrite->get_month_permastruct();
if ( !empty($monthlink) ) {
$monthlink = str_replace('%year%', $year, $monthlink);
$monthlink = str_replace('%monthnum%', zeroise(intval($month), 2), $monthlink);
return apply_filters('month_link', get_option('home') . user_trailingslashit($monthlink, 'month'), $year, $month);
} else {
return apply_filters('month_link', get_option('home') . '/?m=' . $year . zeroise($month, 2), $year, $month);
}
}
/**
* Retrieve the permalink for the day archives with year and month.
*
* @since 1.0.0
*
* @param bool|int $year False for current year. Integer of year.
* @param bool|int $month False for current month. Integer of month.
* @param bool|int $day False for current day. Integer of day.
* @return string
*/
function get_day_link($year, $month, $day) {
global $wp_rewrite;
if ( !$year )
$year = gmdate('Y', time()+(get_option('gmt_offset') * 3600));
if ( !$month )
$month = gmdate('m', time()+(get_option('gmt_offset') * 3600));
if ( !$day )
$day = gmdate('j', time()+(get_option('gmt_offset') * 3600));
$daylink = $wp_rewrite->get_day_permastruct();
if ( !empty($daylink) ) {
$daylink = str_replace('%year%', $year, $daylink);
$daylink = str_replace('%monthnum%', zeroise(intval($month), 2), $daylink);
$daylink = str_replace('%day%', zeroise(intval($day), 2), $daylink);
return apply_filters('day_link', get_option('home') . user_trailingslashit($daylink, 'day'), $year, $month, $day);
} else {
return apply_filters('day_link', get_option('home') . '/?m=' . $year . zeroise($month, 2) . zeroise($day, 2), $year, $month, $day);
}
}
/**
* Retrieve the permalink for the feed type.
*
* @since 1.5.0
*
* @param string $feed Optional, defaults to default feed. Feed type.
* @return string
*/
function get_feed_link($feed = '') {
global $wp_rewrite;
$permalink = $wp_rewrite->get_feed_permastruct();
if ( '' != $permalink ) {
if ( false !== strpos($feed, 'comments_') ) {
$feed = str_replace('comments_', '', $feed);
$permalink = $wp_rewrite->get_comment_feed_permastruct();
}
if ( get_default_feed() == $feed )
$feed = '';
$permalink = str_replace('%feed%', $feed, $permalink);
$permalink = preg_replace('#/+#', '/', "/$permalink");
$output = get_option('home') . user_trailingslashit($permalink, 'feed');
} else {
if ( empty($feed) )
$feed = get_default_feed();
if ( false !== strpos($feed, 'comments_') )
$feed = str_replace('comments_', 'comments-', $feed);
$output = get_option('home') . "/?feed={$feed}";
}
return apply_filters('feed_link', $output, $feed);
}
/**
* Retrieve the permalink for the post comments feed.
*
* @since 2.2.0
*
* @param int $post_id Optional. Post ID.
* @param string $feed Optional. Feed type.
* @return string
*/
function get_post_comments_feed_link($post_id = '', $feed = '') {
global $id;
if ( empty($post_id) )
$post_id = (int) $id;
if ( empty($feed) )
$feed = get_default_feed();
if ( '' != get_option('permalink_structure') ) {
$url = trailingslashit( get_permalink($post_id) ) . 'feed';
if ( $feed != get_default_feed() )
$url .= "/$feed";
$url = user_trailingslashit($url, 'single_feed');
} else {
$type = get_post_field('post_type', $post_id);
if ( 'page' == $type )
$url = get_option('home') . "/?feed=$feed&page_id=$post_id";
else
$url = get_option('home') . "/?feed=$feed&p=$post_id";
}
return apply_filters('post_comments_feed_link', $url);
}
/**
* Display the comment feed link for a post.
*
* Prints out the comment feed link for a post. Link text is placed in the
* anchor. If no link text is specified, default text is used. If no post ID is
* specified, the current post is used.
*
* @package WordPress
* @subpackage Feed
* @since 2.5.0
*
* @param string $link_text Descriptive text.
* @param int $post_id Optional post ID. Default to current post.
* @param string $feed Optional. Feed format.
* @return string Link to the comment feed for the current post.
*/
function post_comments_feed_link( $link_text = '', $post_id = '', $feed = '' ) {
$url = get_post_comments_feed_link($post_id, $feed);
if ( empty($link_text) )
$link_text = __('Comments Feed');
echo "<a href='$url'>$link_text</a>";
}
/**
* Retrieve the feed link for a given author.
*
* Returns a link to the feed for all posts by a given author. A specific feed
* can be requested or left blank to get the default feed.
*
* @package WordPress
* @subpackage Feed
* @since 2.5.0
*
* @param int $author_id ID of an author.
* @param string $feed Optional. Feed type.
* @return string Link to the feed for the author specified by $author_id.
*/
function get_author_feed_link( $author_id, $feed = '' ) {
$author_id = (int) $author_id;
$permalink_structure = get_option('permalink_structure');
if ( empty($feed) )
$feed = get_default_feed();
if ( '' == $permalink_structure ) {
$link = get_option('home') . "?feed=$feed&author=" . $author_id;
} else {
$link = get_author_posts_url($author_id);
if ( $feed == get_default_feed() )
$feed_link = 'feed';
else
$feed_link = "feed/$feed";
$link = trailingslashit($link) . user_trailingslashit($feed_link, 'feed');
}
$link = apply_filters('author_feed_link', $link, $feed);
return $link;
}
/**
* Retrieve the feed link for a category.
*
* Returns a link to the feed for all post in a given category. A specific feed
* can be requested or left blank to get the default feed.
*
* @package WordPress
* @subpackage Feed
* @since 2.5.0
*
* @param int $cat_id ID of a category.
* @param string $feed Optional. Feed type.
* @return string Link to the feed for the category specified by $cat_id.
*/
function get_category_feed_link($cat_id, $feed = '') {
$cat_id = (int) $cat_id;
$category = get_category($cat_id);
if ( empty($category) || is_wp_error($category) )
return false;
if ( empty($feed) )
$feed = get_default_feed();
$permalink_structure = get_option('permalink_structure');
if ( '' == $permalink_structure ) {
$link = get_option('home') . "?feed=$feed&cat=" . $cat_id;
} else {
$link = get_category_link($cat_id);
if( $feed == get_default_feed() )
$feed_link = 'feed';
else
$feed_link = "feed/$feed";
$link = trailingslashit($link) . user_trailingslashit($feed_link, 'feed');
}
$link = apply_filters('category_feed_link', $link, $feed);
return $link;
}
/**
* Retrieve permalink for feed of tag.
*
* @since 2.3.0
*
* @param int $tag_id Tag ID.
* @param string $feed Optional. Feed type.
* @return string
*/
function get_tag_feed_link($tag_id, $feed = '') {
$tag_id = (int) $tag_id;
$tag = get_tag($tag_id);
if ( empty($tag) || is_wp_error($tag) )
return false;
$permalink_structure = get_option('permalink_structure');
if ( empty($feed) )
$feed = get_default_feed();
if ( '' == $permalink_structure ) {
$link = get_option('home') . "?feed=$feed&tag=" . $tag->slug;
} else {
$link = get_tag_link($tag->term_id);
if ( $feed == get_default_feed() )
$feed_link = 'feed';
else
$feed_link = "feed/$feed";
$link = trailingslashit($link) . user_trailingslashit($feed_link, 'feed');
}
$link = apply_filters('tag_feed_link', $link, $feed);
return $link;
}
/**
* Retrieve edit tag link.
*
* @since 2.7.0
*
* @param int $tag_id Tag ID
* @return string
*/
function get_edit_tag_link( $tag_id = 0 ) {
$tag = get_term($tag_id, 'post_tag');
if ( !current_user_can('manage_categories') )
return;
$location = admin_url('edit-tags.php?action=edit&tag_ID=') . $tag->term_id;
return apply_filters( 'get_edit_tag_link', $location );
}
/**
* Display or retrieve edit tag link with formatting.
*
* @since 2.7.0
*
* @param string $link Optional. Anchor text.
* @param string $before Optional. Display before edit link.
* @param string $after Optional. Display after edit link.
* @param int|object $tag Tag object or ID
* @return string|null HTML content, if $echo is set to false.
*/
function edit_tag_link( $link = '', $before = '', $after = '', $tag = null ) {
$tag = get_term($tag, 'post_tag');
if ( !current_user_can('manage_categories') )
return;
if ( empty($link) )
$link = __('Edit This');
$link = '<a href="' . get_edit_tag_link( $tag->term_id ) . '" title="' . __( 'Edit tag' ) . '">' . $link . '</a>';
echo $before . apply_filters( 'edit_tag_link', $link, $tag->term_id ) . $after;
}
/**
* Retrieve the permalink for the feed of the search results.
*
* @since 2.5.0
*
* @param string $search_query Optional. Search query.
* @param string $feed Optional. Feed type.
* @return string
*/
function get_search_feed_link($search_query = '', $feed = '') {
if ( empty($search_query) )
$search = attribute_escape(get_search_query());
else
$search = attribute_escape(stripslashes($search_query));
if ( empty($feed) )
$feed = get_default_feed();
$link = get_option('home') . "?s=$search&feed=$feed";
$link = apply_filters('search_feed_link', $link);
return $link;
}
/**
* Retrieve the permalink for the comments feed of the search results.
*
* @since 2.5.0
*
* @param string $search_query Optional. Search query.
* @param string $feed Optional. Feed type.
* @return string
*/
function get_search_comments_feed_link($search_query = '', $feed = '') {
if ( empty($search_query) )
$search = attribute_escape(get_search_query());
else
$search = attribute_escape(stripslashes($search_query));
if ( empty($feed) )
$feed = get_default_feed();
$link = get_option('home') . "?s=$search&feed=comments-$feed";
$link = apply_filters('search_feed_link', $link);
return $link;
}
/**
* Retrieve edit posts link for post.
*
* Can be used within the WordPress loop or outside of it. Can be used with
* pages, posts, attachments, and revisions.
*
* @since 2.3.0
*
* @param int $id Optional. Post ID.
* @param string $context Optional, default to display. How to write the '&', defaults to '&'.
* @return string
*/
function get_edit_post_link( $id = 0, $context = 'display' ) {
if ( !$post = &get_post( $id ) )
return;
if ( 'display' == $context )
$action = 'action=edit&';
else
$action = 'action=edit&';
switch ( $post->post_type ) :
case 'page' :
if ( !current_user_can( 'edit_page', $post->ID ) )
return;
$file = 'page';
$var = 'post';
break;
case 'attachment' :
if ( !current_user_can( 'edit_post', $post->ID ) )
return;
$file = 'media';
$var = 'attachment_id';
break;
case 'revision' :
if ( !current_user_can( 'edit_post', $post->ID ) )
return;
$file = 'revision';
$var = 'revision';
$action = '';
break;
default :
if ( !current_user_can( 'edit_post', $post->ID ) )
return;
$file = 'post';
$var = 'post';
break;
endswitch;
return apply_filters( 'get_edit_post_link', admin_url("$file.php?{$action}$var=$post->ID"), $post->ID, $context );
}
/**
* Retrieve edit posts link for post.
*
* @since 1.0.0
*
* @param string $link Optional. Anchor text.
* @param string $before Optional. Display before edit link.
* @param string $after Optional. Display after edit link.
*/
function edit_post_link( $link = 'Edit This', $before = '', $after = '' ) {
global $post;
if ( $post->post_type == 'page' ) {
if ( !current_user_can( 'edit_page', $post->ID ) )
return;
} else {
if ( !current_user_can( 'edit_post', $post->ID ) )
return;
}
$link = '<a class="post-edit-link" href="' . get_edit_post_link( $post->ID ) . '" title="' . attribute_escape( __( 'Edit post' ) ) . '">' . $link . '</a>';
echo $before . apply_filters( 'edit_post_link', $link, $post->ID ) . $after;
}
/**
* Retrieve edit comment link.
*
* @since 2.3.0
*
* @param int $comment_id Optional. Comment ID.
* @return string
*/
function get_edit_comment_link( $comment_id = 0 ) {
$comment = &get_comment( $comment_id );
$post = &get_post( $comment->comment_post_ID );
if ( $post->post_type == 'page' ) {
if ( !current_user_can( 'edit_page', $post->ID ) )
return;
} else {
if ( !current_user_can( 'edit_post', $post->ID ) )
return;
}
$location = admin_url('comment.php?action=editcomment&c=') . $comment->comment_ID;
return apply_filters( 'get_edit_comment_link', $location );
}
/**
* Display or retrieve edit comment link with formatting.
*
* @since 1.0.0
*
* @param string $link Optional. Anchor text.
* @param string $before Optional. Display before edit link.
* @param string $after Optional. Display after edit link.
* @return string|null HTML content, if $echo is set to false.
*/
function edit_comment_link( $link = 'Edit This', $before = '', $after = '' ) {
global $comment, $post;
if ( $post->post_type == 'attachment' ) {
} elseif ( $post->post_type == 'page' ) {
if ( !current_user_can( 'edit_page', $post->ID ) )
return;
} else {
if ( !current_user_can( 'edit_post', $post->ID ) )
return;
}
$link = '<a class="comment-edit-link" href="' . get_edit_comment_link( $comment->comment_ID ) . '" title="' . __( 'Edit comment' ) . '">' . $link . '</a>';
echo $before . apply_filters( 'edit_comment_link', $link, $comment->comment_ID ) . $after;
}
/**
* Display edit bookmark (literally a URL external to blog) link.
*
* @since 2.7.0
*
* @param int $link Optional. Bookmark ID.
* @return string
*/
function get_edit_bookmark_link( $link = 0 ) {
$link = get_bookmark( $link );
if ( !current_user_can('manage_links') )
return;
$location = admin_url('link.php?action=edit&link_id=') . $link->link_id;
return apply_filters( 'get_edit_bookmark_link', $location, $link->link_id );
}
/**
* Display edit bookmark (literally a URL external to blog) link anchor content.
*
* @since 2.7.0
*
* @param string $link Optional. Anchor text.
* @param string $before Optional. Display before edit link.
* @param string $after Optional. Display after edit link.
* @param int $bookmark Optional. Bookmark ID.
*/
function edit_bookmark_link( $link = '', $before = '', $after = '', $bookmark = null ) {
$bookmark = get_bookmark($bookmark);
if ( !current_user_can('manage_links') )
return;
if ( empty($link) )
$link = __('Edit This');
$link = '<a href="' . get_edit_bookmark_link( $link ) . '" title="' . __( 'Edit link' ) . '">' . $link . '</a>';
echo $before . apply_filters( 'edit_bookmark_link', $link, $bookmark->link_id ) . $after;
}
// Navigation links
/**
* Retrieve previous post link that is adjacent to current post.
*
* @since 1.5.0
*
* @param bool $in_same_cat Optional. Whether link should be in same category.
* @param string $excluded_categories Optional. Excluded categories IDs.
* @return string
*/
function get_previous_post($in_same_cat = false, $excluded_categories = '') {
return get_adjacent_post($in_same_cat, $excluded_categories);
}
/**
* Retrieve next post link that is adjacent to current post.
*
* @since 1.5.0
*
* @param bool $in_same_cat Optional. Whether link should be in same category.
* @param string $excluded_categories Optional. Excluded categories IDs.
* @return string
*/
function get_next_post($in_same_cat = false, $excluded_categories = '') {
return get_adjacent_post($in_same_cat, $excluded_categories, false);
}
/**
* Retrieve adjacent post link.
*
* Can either be next or previous post link.
*
* @since 2.5.0
*
* @param bool $in_same_cat Optional. Whether link should be in same category.
* @param string $excluded_categories Optional. Excluded categories IDs.
* @param bool $previous Optional. Whether to retrieve previous post.
* @return string
*/
function get_adjacent_post($in_same_cat = false, $excluded_categories = '', $previous = true) {
global $post, $wpdb;
if( empty($post) || !is_single() || is_attachment() )
return null;
$current_post_date = $post->post_date;
$join = '';
$posts_in_ex_cats_sql = '';
if ( $in_same_cat || !empty($excluded_categories) ) {
$join = " INNER JOIN $wpdb->term_relationships AS tr ON p.ID = tr.object_id INNER JOIN $wpdb->term_taxonomy tt ON tr.term_taxonomy_id = tt.term_taxonomy_id";
if ( $in_same_cat ) {
$cat_array = wp_get_object_terms($post->ID, 'category', 'fields=ids');
$join .= " AND tt.taxonomy = 'category' AND tt.term_id IN (" . implode(',', $cat_array) . ")";
}
$posts_in_ex_cats_sql = "AND tt.taxonomy = 'category'";
if ( !empty($excluded_categories) ) {
$excluded_categories = array_map('intval', explode(' and ', $excluded_categories));
if ( !empty($cat_array) ) {
$excluded_categories = array_diff($excluded_categories, $cat_array);
$posts_in_ex_cats_sql = '';
}
if ( !empty($excluded_categories) ) {
$posts_in_ex_cats_sql = " AND tt.taxonomy = 'category' AND tt.term_id NOT IN (" . implode($excluded_categories, ',') . ')';
}
}
}
$adjacent = $previous ? 'previous' : 'next';
$op = $previous ? '<' : '>';
$order = $previous ? 'DESC' : 'ASC';
$join = apply_filters( "get_{$adjacent}_post_join", $join, $in_same_cat, $excluded_categories );
$where = apply_filters( "get_{$adjacent}_post_where", $wpdb->prepare("WHERE p.post_date $op %s AND p.post_type = 'post' AND p.post_status = 'publish' $posts_in_ex_cats_sql", $current_post_date), $in_same_cat, $excluded_categories );
$sort = apply_filters( "get_{$adjacent}_post_sort", "ORDER BY p.post_date $order LIMIT 1" );
return $wpdb->get_row("SELECT p.* FROM $wpdb->posts AS p $join $where $sort");
}
/**
* Display previous post link that is adjacent to the current post.
*
* @since 1.5.0
*
* @param string $format Optional. Link anchor format.
* @param string $link Optional. Link permalink format.
* @param bool $in_same_cat Optional. Whether link should be in same category.
* @param string $excluded_categories Optional. Excluded categories IDs.
*/
function previous_post_link($format='« %link', $link='%title', $in_same_cat = false, $excluded_categories = '') {
adjacent_post_link($format, $link, $in_same_cat, $excluded_categories, true);
}
/**
* Display next post link that is adjacent to the current post.
*
* @since 1.5.0
*
* @param string $format Optional. Link anchor format.
* @param string $link Optional. Link permalink format.
* @param bool $in_same_cat Optional. Whether link should be in same category.
* @param string $excluded_categories Optional. Excluded categories IDs.
*/
function next_post_link($format='%link »', $link='%title', $in_same_cat = false, $excluded_categories = '') {
adjacent_post_link($format, $link, $in_same_cat, $excluded_categories, false);
}
/**
* Display adjacent post link.
*
* Can be either next post link or previous.
*
* @since 2.5.0
*
* @param string $format Link anchor format.
* @param string $link Link permalink format.
* @param bool $in_same_cat Optional. Whether link should be in same category.
* @param string $excluded_categories Optional. Excluded categories IDs.
* @param bool $previous Optional, default is true. Whether display link to previous post.
*/
function adjacent_post_link($format, $link, $in_same_cat = false, $excluded_categories = '', $previous = true) {
if ( $previous && is_attachment() )
$post = & get_post($GLOBALS['post']->post_parent);
else
$post = get_adjacent_post($in_same_cat, $excluded_categories, $previous);
if ( !$post )
return;
$title = $post->post_title;
if ( empty($post->post_title) )
$title = $previous ? __('Previous Post') : __('Next Post');
$title = apply_filters('the_title', $title, $post);
$date = mysql2date(get_option('date_format'), $post->post_date);
$string = '<a href="'.get_permalink($post).'">';
$link = str_replace('%title', $title, $link);
$link = str_replace('%date', $date, $link);
$link = $string . $link . '</a>';
$format = str_replace('%link', $link, $format);
$adjacent = $previous ? 'previous' : 'next';
echo apply_filters( "{$adjacent}_post_link", $format, $link );
}
/**
* Retrieve get links for page numbers.
*
* @since 1.5.0
*
* @param int $pagenum Optional. Page ID.
* @return string
*/
function get_pagenum_link($pagenum = 1) {
global $wp_rewrite;
$pagenum = (int) $pagenum;
$request = remove_query_arg( 'paged' );
$home_root = parse_url(get_option('home'));
$home_root = ( isset($home_root['path']) ) ? $home_root['path'] : '';
$home_root = preg_quote( trailingslashit( $home_root ), '|' );
$request = preg_replace('|^'. $home_root . '|', '', $request);
$request = preg_replace('|^/+|', '', $request);
if ( !$wp_rewrite->using_permalinks() || is_admin() ) {
$base = trailingslashit( get_bloginfo( 'home' ) );
if ( $pagenum > 1 ) {