source: trunk/www.guidonia.net/wp/wp-includes/query.php@ 44

Last change on this file since 44 was 44, checked in by luciano, 15 years ago
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[44]1<?php
2/**
3 * WordPress Query API
4 *
5 * The query API attempts to get which part of WordPress to the user is on. It
6 * also provides functionality to getting URL query information.
7 *
8 * @link http://codex.wordpress.org/The_Loop More information on The Loop.
9 *
10 * @package WordPress
11 * @subpackage Query
12 */
13
14/**
15 * Retrieve variable in the WP_Query class.
16 *
17 * @see WP_Query::get()
18 * @since 1.5.0
19 * @uses $wp_query
20 *
21 * @param string $var The variable key to retrieve.
22 * @return mixed
23 */
24function get_query_var($var) {
25 global $wp_query;
26
27 return $wp_query->get($var);
28}
29
30/**
31 * Set query variable.
32 *
33 * @see WP_Query::set()
34 * @since 2.2.0
35 * @uses $wp_query
36 *
37 * @param string $var Query variable key.
38 * @param mixed $value
39 * @return null
40 */
41function set_query_var($var, $value) {
42 global $wp_query;
43
44 return $wp_query->set($var, $value);
45}
46
47/**
48 * Setup The Loop with query parameters.
49 *
50 * This will override the current WordPress Loop and shouldn't be used more than
51 * once. This must not be used within the WordPress Loop.
52 *
53 * @since 1.5.0
54 * @uses $wp_query
55 *
56 * @param string $query
57 * @return array List of posts
58 */
59function &query_posts($query) {
60 unset($GLOBALS['wp_query']);
61 $GLOBALS['wp_query'] =& new WP_Query();
62 return $GLOBALS['wp_query']->query($query);
63}
64
65/**
66 * Destroy the previous query and setup a new query.
67 *
68 * This should be used after {@link query_posts()} and before another {@link
69 * query_posts()}. This will remove obscure bugs that occur when the previous
70 * wp_query object is not destroyed properly before another is setup.
71 *
72 * @since 2.3.0
73 * @uses $wp_query
74 */
75function wp_reset_query() {
76 unset($GLOBALS['wp_query']);
77 $GLOBALS['wp_query'] =& $GLOBALS['wp_the_query'];
78 global $wp_query;
79 if ( !empty($wp_query->post) ) {
80 $GLOBALS['post'] = $wp_query->post;
81 setup_postdata($wp_query->post);
82 }
83}
84
85/*
86 * Query type checks.
87 */
88
89/**
90 * Whether the current request is in WordPress admin Panel
91 *
92 * Does not inform on whether the user is an admin! Use capability checks to
93 * tell if the user should be accessing a section or not.
94 *
95 * @since 1.5.1
96 *
97 * @return bool True if inside WordPress administration pages.
98 */
99function is_admin () {
100 if ( defined('WP_ADMIN') )
101 return WP_ADMIN;
102 return false;
103}
104
105/**
106 * Is query requesting an archive page.
107 *
108 * @since 1.5.0
109 * @uses $wp_query
110 *
111 * @return bool True if page is archive.
112 */
113function is_archive () {
114 global $wp_query;
115
116 return $wp_query->is_archive;
117}
118
119/**
120 * Is query requesting an attachment page.
121 *
122 * @since 2.0.0
123 * @uses $wp_query
124 *
125 * @return bool True if page is attachment.
126 */
127function is_attachment () {
128 global $wp_query;
129
130 return $wp_query->is_attachment;
131}
132
133/**
134 * Is query requesting an author page.
135 *
136 * If the $author parameter is specified then the check will be expanded to
137 * include whether the queried author matches the one given in the parameter.
138 * You can match against integers and against strings.
139 *
140 * If matching against an integer, the ID should be used of the author for the
141 * test. If the $author is an ID and matches the author page user ID, then
142 * 'true' will be returned.
143 *
144 * If matching against strings, then the test will be matched against both the
145 * nickname and user nicename and will return true on success.
146 *
147 * @since 1.5.0
148 * @uses $wp_query
149 *
150 * @param string|int $author Optional. Is current page this author.
151 * @return bool True if page is author or $author (if set).
152 */
153function is_author ($author = '') {
154 global $wp_query;
155
156 if ( !$wp_query->is_author )
157 return false;
158
159 if ( empty($author) )
160 return true;
161
162 $author_obj = $wp_query->get_queried_object();
163
164 $author = (array) $author;
165
166 if ( in_array( $author_obj->ID, $author ) )
167 return true;
168 elseif ( in_array( $author_obj->nickname, $author ) )
169 return true;
170 elseif ( in_array( $author_obj->user_nicename, $author ) )
171 return true;
172
173 return false;
174}
175
176/**
177 * Whether current page query contains a category name or given category name.
178 *
179 * The category list can contain category IDs, names, or category slugs. If any
180 * of them are part of the query, then it will return true.
181 *
182 * @since 1.5.0
183 * @uses $wp_query
184 *
185 * @param string|array $category Optional.
186 * @return bool
187 */
188function is_category ($category = '') {
189 global $wp_query;
190
191 if ( !$wp_query->is_category )
192 return false;
193
194 if ( empty($category) )
195 return true;
196
197 $cat_obj = $wp_query->get_queried_object();
198
199 $category = (array) $category;
200
201 if ( in_array( $cat_obj->term_id, $category ) )
202 return true;
203 elseif ( in_array( $cat_obj->name, $category ) )
204 return true;
205 elseif ( in_array( $cat_obj->slug, $category ) )
206 return true;
207
208 return false;
209}
210
211/**
212 * Whether the current page query has the given tag slug or contains tag.
213 *
214 * @since 2.3.0
215 * @uses $wp_query
216 *
217 * @param string|array $slug Optional. Single tag or list of tags to check for.
218 * @return bool
219 */
220function is_tag( $slug = '' ) {
221 global $wp_query;
222
223 if ( !$wp_query->is_tag )
224 return false;
225
226 if ( empty( $slug ) )
227 return true;
228
229 $tag_obj = $wp_query->get_queried_object();
230
231 $slug = (array) $slug;
232
233 if ( in_array( $tag_obj->slug, $slug ) )
234 return true;
235
236 return false;
237}
238
239/**
240 * Whether the current page query has the given taxonomy slug or contains taxonomy.
241 *
242 * @since 2.5.0
243 * @uses $wp_query
244 *
245 * @param string|array $slug Optional. Slug or slugs to check in current query.
246 * @return bool
247 */
248function is_tax( $slug = '' ) {
249 global $wp_query;
250
251 if ( !$wp_query->is_tax )
252 return false;
253
254 if ( empty($slug) )
255 return true;
256
257 $term = $wp_query->get_queried_object();
258
259 $slug = (array) $slug;
260
261 if ( in_array( $term->slug, $slug ) )
262 return true;
263
264 return false;
265}
266
267/**
268 * Whether the current URL is within the comments popup window.
269 *
270 * @since 1.5.0
271 * @uses $wp_query
272 *
273 * @return bool
274 */
275function is_comments_popup () {
276 global $wp_query;
277
278 return $wp_query->is_comments_popup;
279}
280
281/**
282 * Whether current URL is based on a date.
283 *
284 * @since 1.5.0
285 * @uses $wp_query
286 *
287 * @return bool
288 */
289function is_date () {
290 global $wp_query;
291
292 return $wp_query->is_date;
293}
294
295/**
296 * Whether current blog URL contains a day.
297 *
298 * @since 1.5.0
299 * @uses $wp_query
300 *
301 * @return bool
302 */
303function is_day () {
304 global $wp_query;
305
306 return $wp_query->is_day;
307}
308
309/**
310 * Whether current page query is feed URL.
311 *
312 * @since 1.5.0
313 * @uses $wp_query
314 *
315 * @return bool
316 */
317function is_feed () {
318 global $wp_query;
319
320 return $wp_query->is_feed;
321}
322
323/**
324 * Whether current page query is the front of the site.
325 *
326 * @since 2.5.0
327 * @uses is_home()
328 * @uses get_option()
329 *
330 * @return bool True, if front of site.
331 */
332function is_front_page () {
333 // most likely case
334 if ( 'posts' == get_option('show_on_front') && is_home() )
335 return true;
336 elseif ( 'page' == get_option('show_on_front') && get_option('page_on_front') && is_page(get_option('page_on_front')) )
337 return true;
338 else
339 return false;
340}
341
342/**
343 * Whether current page view is the blog homepage.
344 *
345 * @since 1.5.0
346 * @uses $wp_query
347 *
348 * @return bool True if blog view homepage.
349 */
350function is_home () {
351 global $wp_query;
352
353 return $wp_query->is_home;
354}
355
356/**
357 * Whether current page query contains a month.
358 *
359 * @since 1.5.0
360 * @uses $wp_query
361 *
362 * @return bool
363 */
364function is_month () {
365 global $wp_query;
366
367 return $wp_query->is_month;
368}
369
370/**
371 * Whether query is page or contains given page(s).
372 *
373 * Calls the function without any parameters will only test whether the current
374 * query is of the page type. Either a list or a single item can be tested
375 * against for whether the query is a page and also is the value or one of the
376 * values in the page parameter.
377 *
378 * The parameter can contain the page ID, page title, or page name. The
379 * parameter can also be an array of those three values.
380 *
381 * @since 1.5.0
382 * @uses $wp_query
383 *
384 * @param mixed $page Either page or list of pages to test against.
385 * @return bool
386 */
387function is_page ($page = '') {
388 global $wp_query;
389
390 if ( !$wp_query->is_page )
391 return false;
392
393 if ( empty($page) )
394 return true;
395
396 $page_obj = $wp_query->get_queried_object();
397
398 $page = (array) $page;
399
400 if ( in_array( $page_obj->ID, $page ) )
401 return true;
402 elseif ( in_array( $page_obj->post_title, $page ) )
403 return true;
404 else if ( in_array( $page_obj->post_name, $page ) )
405 return true;
406
407 return false;
408}
409
410/**
411 * Whether query contains multiple pages for the results.
412 *
413 * @since 1.5.0
414 * @uses $wp_query
415 *
416 * @return bool
417 */
418function is_paged () {
419 global $wp_query;
420
421 return $wp_query->is_paged;
422}
423
424/**
425 * Whether the current page was created by a plugin.
426 *
427 * The plugin can set this by using the global $plugin_page and setting it to
428 * true.
429 *
430 * @since 1.5.0
431 * @global bool $plugin_page Used by plugins to tell the query that current is a plugin page.
432 *
433 * @return bool
434 */
435function is_plugin_page() {
436 global $plugin_page;
437
438 if ( isset($plugin_page) )
439 return true;
440
441 return false;
442}
443
444/**
445 * Whether the current query is preview of post or page.
446 *
447 * @since 2.0.0
448 * @uses $wp_query
449 *
450 * @return bool
451 */
452function is_preview() {
453 global $wp_query;
454
455 return $wp_query->is_preview;
456}
457
458/**
459 * Whether the current query post is robots.
460 *
461 * @since 2.1.0
462 * @uses $wp_query
463 *
464 * @return bool
465 */
466function is_robots() {
467 global $wp_query;
468
469 return $wp_query->is_robots;
470}
471
472/**
473 * Whether current query is the result of a user search.
474 *
475 * @since 1.5.0
476 * @uses $wp_query
477 *
478 * @return bool
479 */
480function is_search () {
481 global $wp_query;
482
483 return $wp_query->is_search;
484}
485
486/**
487 * Whether the current page query is single page.
488 *
489 * The parameter can contain the post ID, post title, or post name. The
490 * parameter can also be an array of those three values.
491 *
492 * This applies to other post types, attachments, pages, posts. Just means that
493 * the current query has only a single object.
494 *
495 * @since 1.5.0
496 * @uses $wp_query
497 *
498 * @param mixed $post Either post or list of posts to test against.
499 * @return bool
500 */
501function is_single ($post = '') {
502 global $wp_query;
503
504 if ( !$wp_query->is_single )
505 return false;
506
507 if ( empty( $post) )
508 return true;
509
510 $post_obj = $wp_query->get_queried_object();
511
512 $post = (array) $post;
513
514 if ( in_array( $post_obj->ID, $post ) )
515 return true;
516 elseif ( in_array( $post_obj->post_title, $post ) )
517 return true;
518 elseif ( in_array( $post_obj->post_name, $post ) )
519 return true;
520
521 return false;
522}
523
524/**
525 * Whether is single post, is a page, or is an attachment.
526 *
527 * @since 1.5.0
528 * @uses $wp_query
529 *
530 * @return bool
531 */
532function is_singular() {
533 global $wp_query;
534
535 return $wp_query->is_singular;
536}
537
538/**
539 * Whether the query contains a time.
540 *
541 * @since 1.5.0
542 * @uses $wp_query
543 *
544 * @return bool
545 */
546function is_time () {
547 global $wp_query;
548
549 return $wp_query->is_time;
550}
551
552/**
553 * Whether the query is a trackback.
554 *
555 * @since 1.5.0
556 * @uses $wp_query
557 *
558 * @return bool
559 */
560function is_trackback () {
561 global $wp_query;
562
563 return $wp_query->is_trackback;
564}
565
566/**
567 * Whether the query contains a year.
568 *
569 * @since 1.5.0
570 * @uses $wp_query
571 *
572 * @return bool
573 */
574function is_year () {
575 global $wp_query;
576
577 return $wp_query->is_year;
578}
579
580/**
581 * Whether current page query is a 404 and no results for WordPress query.
582 *
583 * @since 1.5.0
584 * @uses $wp_query
585 *
586 * @return bool True, if nothing is found matching WordPress Query.
587 */
588function is_404 () {
589 global $wp_query;
590
591 return $wp_query->is_404;
592}
593
594/*
595 * The Loop. Post loop control.
596 */
597
598/**
599 * Whether current WordPress query has results to loop over.
600 *
601 * @see WP_Query::have_posts()
602 * @since 1.5.0
603 * @uses $wp_query
604 *
605 * @return bool
606 */
607function have_posts() {
608 global $wp_query;
609
610 return $wp_query->have_posts();
611}
612
613/**
614 * Whether the caller is in the Loop.
615 *
616 * @since 2.0.0
617 * @uses $wp_query
618 *
619 * @return bool True if caller is within loop, false if loop hasn't started or ended.
620 */
621function in_the_loop() {
622 global $wp_query;
623
624 return $wp_query->in_the_loop;
625}
626
627/**
628 * Rewind the loop posts.
629 *
630 * @see WP_Query::rewind_posts()
631 * @since 1.5.0
632 * @uses $wp_query
633 *
634 * @return null
635 */
636function rewind_posts() {
637 global $wp_query;
638
639 return $wp_query->rewind_posts();
640}
641
642/**
643 * Iterate the post index in the loop.
644 *
645 * @see WP_Query::the_post()
646 * @since 1.5.0
647 * @uses $wp_query
648 */
649function the_post() {
650 global $wp_query;
651
652 $wp_query->the_post();
653}
654
655/*
656 * Comments loop.
657 */
658
659/**
660 * Whether there are comments to loop over.
661 *
662 * @see WP_Query::have_comments()
663 * @since 2.2.0
664 * @uses $wp_query
665 *
666 * @return bool
667 */
668function have_comments() {
669 global $wp_query;
670 return $wp_query->have_comments();
671}
672
673/**
674 * Iterate comment index in the comment loop.
675 *
676 * @see WP_Query::the_comment()
677 * @since 2.2.0
678 * @uses $wp_query
679 *
680 * @return object
681 */
682function the_comment() {
683 global $wp_query;
684 return $wp_query->the_comment();
685}
686
687/*
688 * WP_Query
689 */
690
691/**
692 * The WordPress Query class.
693 *
694 * @link http://codex.wordpress.org/Function_Reference/WP_Query Codex page.
695 *
696 * @since 1.5.0
697 */
698class WP_Query {
699
700 /**
701 * Query string
702 *
703 * @since 1.5.0
704 * @access public
705 * @var string
706 */
707 var $query;
708
709 /**
710 * Query search variables set by the user.
711 *
712 * @since 1.5.0
713 * @access public
714 * @var array
715 */
716 var $query_vars = array();
717
718 /**
719 * Holds the data for a single object that is queried.
720 *
721 * Holds the contents of a post, page, category, attachment.
722 *
723 * @since 1.5.0
724 * @access public
725 * @var object|array
726 */
727 var $queried_object;
728
729 /**
730 * The ID of the queried object.
731 *
732 * @since 1.5.0
733 * @access public
734 * @var int
735 */
736 var $queried_object_id;
737
738 /**
739 * Get post database query.
740 *
741 * @since 2.0.1
742 * @access public
743 * @var string
744 */
745 var $request;
746
747 /**
748 * List of posts.
749 *
750 * @since 1.5.0
751 * @access public
752 * @var array
753 */
754 var $posts;
755
756 /**
757 * The amount of posts for the current query.
758 *
759 * @since 1.5.0
760 * @access public
761 * @var int
762 */
763 var $post_count = 0;
764
765 /**
766 * Index of the current item in the loop.
767 *
768 * @since 1.5.0
769 * @access public
770 * @var int
771 */
772 var $current_post = -1;
773
774 /**
775 * Whether the loop has started and the caller is in the loop.
776 *
777 * @since 2.0.0
778 * @access public
779 * @var bool
780 */
781 var $in_the_loop = false;
782
783 /**
784 * The current post ID.
785 *
786 * @since 1.5.0
787 * @access public
788 * @var int
789 */
790 var $post;
791
792 /**
793 * The list of comments for current post.
794 *
795 * @since 2.2.0
796 * @access public
797 * @var array
798 */
799 var $comments;
800
801 /**
802 * The amount of comments for the posts.
803 *
804 * @since 2.2.0
805 * @access public
806 * @var int
807 */
808 var $comment_count = 0;
809
810 /**
811 * The index of the comment in the comment loop.
812 *
813 * @since 2.2.0
814 * @access public
815 * @var int
816 */
817 var $current_comment = -1;
818
819 /**
820 * Current comment ID.
821 *
822 * @since 2.2.0
823 * @access public
824 * @var int
825 */
826 var $comment;
827
828 /**
829 * Amount of posts if limit clause was not used.
830 *
831 * @since 2.1.0
832 * @access public
833 * @var int
834 */
835 var $found_posts = 0;
836
837 /**
838 * The amount of pages.
839 *
840 * @since 2.1.0
841 * @access public
842 * @var int
843 */
844 var $max_num_pages = 0;
845
846 /**
847 * The amount of comment pages.
848 *
849 * @since 2.7.0
850 * @access public
851 * @var int
852 */
853 var $max_num_comment_pages = 0;
854
855 /**
856 * Set if query is single post.
857 *
858 * @since 1.5.0
859 * @access public
860 * @var bool
861 */
862 var $is_single = false;
863
864 /**
865 * Set if query is preview of blog.
866 *
867 * @since 2.0.0
868 * @access public
869 * @var bool
870 */
871 var $is_preview = false;
872
873 /**
874 * Set if query returns a page.
875 *
876 * @since 1.5.0
877 * @access public
878 * @var bool
879 */
880 var $is_page = false;
881
882 /**
883 * Set if query is an archive list.
884 *
885 * @since 1.5.0
886 * @access public
887 * @var bool
888 */
889 var $is_archive = false;
890
891 /**
892 * Set if query is part of a date.
893 *
894 * @since 1.5.0
895 * @access public
896 * @var bool
897 */
898 var $is_date = false;
899
900 /**
901 * Set if query contains a year.
902 *
903 * @since 1.5.0
904 * @access public
905 * @var bool
906 */
907 var $is_year = false;
908
909 /**
910 * Set if query contains a month.
911 *
912 * @since 1.5.0
913 * @access public
914 * @var bool
915 */
916 var $is_month = false;
917
918 /**
919 * Set if query contains a day.
920 *
921 * @since 1.5.0
922 * @access public
923 * @var bool
924 */
925 var $is_day = false;
926
927 /**
928 * Set if query contains time.
929 *
930 * @since 1.5.0
931 * @access public
932 * @var bool
933 */
934 var $is_time = false;
935
936 /**
937 * Set if query contains an author.
938 *
939 * @since 1.5.0
940 * @access public
941 * @var bool
942 */
943 var $is_author = false;
944
945 /**
946 * Set if query contains category.
947 *
948 * @since 1.5.0
949 * @access public
950 * @var bool
951 */
952 var $is_category = false;
953
954 /**
955 * Set if query contains tag.
956 *
957 * @since 2.3.0
958 * @access public
959 * @var bool
960 */
961 var $is_tag = false;
962
963 /**
964 * Set if query contains taxonomy.
965 *
966 * @since 2.5.0
967 * @access public
968 * @var bool
969 */
970 var $is_tax = false;
971
972 /**
973 * Set if query was part of a search result.
974 *
975 * @since 1.5.0
976 * @access public
977 * @var bool
978 */
979 var $is_search = false;
980
981 /**
982 * Set if query is feed display.
983 *
984 * @since 1.5.0
985 * @access public
986 * @var bool
987 */
988 var $is_feed = false;
989
990 /**
991 * Set if query is comment feed display.
992 *
993 * @since 2.2.0
994 * @access public
995 * @var bool
996 */
997 var $is_comment_feed = false;
998
999 /**
1000 * Set if query is trackback.
1001 *
1002 * @since 1.5.0
1003 * @access public
1004 * @var bool
1005 */
1006 var $is_trackback = false;
1007
1008 /**
1009 * Set if query is blog homepage.
1010 *
1011 * @since 1.5.0
1012 * @access public
1013 * @var bool
1014 */
1015 var $is_home = false;
1016
1017 /**
1018 * Set if query couldn't found anything.
1019 *
1020 * @since 1.5.0
1021 * @access public
1022 * @var bool
1023 */
1024 var $is_404 = false;
1025
1026 /**
1027 * Set if query is within comments popup window.
1028 *
1029 * @since 1.5.0
1030 * @access public
1031 * @var bool
1032 */
1033 var $is_comments_popup = false;
1034
1035 /**
1036 * Set if query is part of administration page.
1037 *
1038 * @since 1.5.0
1039 * @access public
1040 * @var bool
1041 */
1042 var $is_admin = false;
1043
1044 /**
1045 * Set if query is an attachment.
1046 *
1047 * @since 2.0.0
1048 * @access public
1049 * @var bool
1050 */
1051 var $is_attachment = false;
1052
1053 /**
1054 * Set if is single, is a page, or is an attachment.
1055 *
1056 * @since 2.1.0
1057 * @access public
1058 * @var bool
1059 */
1060 var $is_singular = false;
1061
1062 /**
1063 * Set if query is for robots.
1064 *
1065 * @since 2.1.0
1066 * @access public
1067 * @var bool
1068 */
1069 var $is_robots = false;
1070
1071 /**
1072 * Set if query contains posts.
1073 *
1074 * Basically, the homepage if the option isn't set for the static homepage.
1075 *
1076 * @since 2.1.0
1077 * @access public
1078 * @var bool
1079 */
1080 var $is_posts_page = false;
1081
1082 /**
1083 * Resets query flags to false.
1084 *
1085 * The query flags are what page info WordPress was able to figure out.
1086 *
1087 * @since 2.0.0
1088 * @access private
1089 */
1090 function init_query_flags() {
1091 $this->is_single = false;
1092 $this->is_page = false;
1093 $this->is_archive = false;
1094 $this->is_date = false;
1095 $this->is_year = false;
1096 $this->is_month = false;
1097 $this->is_day = false;
1098 $this->is_time = false;
1099 $this->is_author = false;
1100 $this->is_category = false;
1101 $this->is_tag = false;
1102 $this->is_tax = false;
1103 $this->is_search = false;
1104 $this->is_feed = false;
1105 $this->is_comment_feed = false;
1106 $this->is_trackback = false;
1107 $this->is_home = false;
1108 $this->is_404 = false;
1109 $this->is_paged = false;
1110 $this->is_admin = false;
1111 $this->is_attachment = false;
1112 $this->is_singular = false;
1113 $this->is_robots = false;
1114 $this->is_posts_page = false;
1115 }
1116
1117 /**
1118 * Initiates object properties and sets default values.
1119 *
1120 * @since 1.5.0
1121 * @access public
1122 */
1123 function init () {
1124 unset($this->posts);
1125 unset($this->query);
1126 $this->query_vars = array();
1127 unset($this->queried_object);
1128 unset($this->queried_object_id);
1129 $this->post_count = 0;
1130 $this->current_post = -1;
1131 $this->in_the_loop = false;
1132
1133 $this->init_query_flags();
1134 }
1135
1136 /**
1137 * Reparse the query vars.
1138 *
1139 * @since 1.5.0
1140 * @access public
1141 */
1142 function parse_query_vars() {
1143 $this->parse_query('');
1144 }
1145
1146 /**
1147 * Fills in the query variables, which do not exist within the parameter.
1148 *
1149 * @since 2.1.0
1150 * @access public
1151 *
1152 * @param array $array Defined query variables.
1153 * @return array Complete query variables with undefined ones filled in empty.
1154 */
1155 function fill_query_vars($array) {
1156 $keys = array(
1157 'error'
1158 , 'm'
1159 , 'p'
1160 , 'post_parent'
1161 , 'subpost'
1162 , 'subpost_id'
1163 , 'attachment'
1164 , 'attachment_id'
1165 , 'name'
1166 , 'hour'
1167 , 'static'
1168 , 'pagename'
1169 , 'page_id'
1170 , 'second'
1171 , 'minute'
1172 , 'hour'
1173 , 'day'
1174 , 'monthnum'
1175 , 'year'
1176 , 'w'
1177 , 'category_name'
1178 , 'tag'
1179 , 'cat'
1180 , 'tag_id'
1181 , 'author_name'
1182 , 'feed'
1183 , 'tb'
1184 , 'paged'
1185 , 'comments_popup'
1186 , 'meta_key'
1187 , 'meta_value'
1188 , 'preview'
1189 );
1190
1191 foreach ($keys as $key) {
1192 if ( !isset($array[$key]))
1193 $array[$key] = '';
1194 }
1195
1196 $array_keys = array('category__in', 'category__not_in', 'category__and', 'post__in', 'post__not_in',
1197 'tag__in', 'tag__not_in', 'tag__and', 'tag_slug__in', 'tag_slug__and');
1198
1199 foreach ( $array_keys as $key ) {
1200 if ( !isset($array[$key]))
1201 $array[$key] = array();
1202 }
1203 return $array;
1204 }
1205
1206 /**
1207 * Parse a query string and set query type booleans.
1208 *
1209 * @since 1.5.0
1210 * @access public
1211 *
1212 * @param string|array $query
1213 */
1214 function parse_query ($query) {
1215 if ( !empty($query) || !isset($this->query) ) {
1216 $this->init();
1217 if ( is_array($query) )
1218 $this->query_vars = $query;
1219 else
1220 parse_str($query, $this->query_vars);
1221 $this->query = $query;
1222 }
1223
1224 $this->query_vars = $this->fill_query_vars($this->query_vars);
1225 $qv = &$this->query_vars;
1226
1227 if ( ! empty($qv['robots']) )
1228 $this->is_robots = true;
1229
1230 $qv['p'] = absint($qv['p']);
1231 $qv['page_id'] = absint($qv['page_id']);
1232 $qv['year'] = absint($qv['year']);
1233 $qv['monthnum'] = absint($qv['monthnum']);
1234 $qv['day'] = absint($qv['day']);
1235 $qv['w'] = absint($qv['w']);
1236 $qv['m'] = absint($qv['m']);
1237 $qv['paged'] = absint($qv['paged']);
1238 $qv['cat'] = preg_replace( '|[^0-9,-]|', '', $qv['cat'] ); // comma separated list of positive or negative integers
1239 $qv['pagename'] = trim( $qv['pagename'] );
1240 $qv['name'] = trim( $qv['name'] );
1241 if ( '' !== $qv['hour'] ) $qv['hour'] = absint($qv['hour']);
1242 if ( '' !== $qv['minute'] ) $qv['minute'] = absint($qv['minute']);
1243 if ( '' !== $qv['second'] ) $qv['second'] = absint($qv['second']);
1244
1245 // Compat. Map subpost to attachment.
1246 if ( '' != $qv['subpost'] )
1247 $qv['attachment'] = $qv['subpost'];
1248 if ( '' != $qv['subpost_id'] )
1249 $qv['attachment_id'] = $qv['subpost_id'];
1250
1251 $qv['attachment_id'] = absint($qv['attachment_id']);
1252
1253 if ( ('' != $qv['attachment']) || !empty($qv['attachment_id']) ) {
1254 $this->is_single = true;
1255 $this->is_attachment = true;
1256 } elseif ( '' != $qv['name'] ) {
1257 $this->is_single = true;
1258 } elseif ( $qv['p'] ) {
1259 $this->is_single = true;
1260 } elseif ( ('' !== $qv['hour']) && ('' !== $qv['minute']) &&('' !== $qv['second']) && ('' != $qv['year']) && ('' != $qv['monthnum']) && ('' != $qv['day']) ) {
1261 // If year, month, day, hour, minute, and second are set, a single
1262 // post is being queried.
1263 $this->is_single = true;
1264 } elseif ( '' != $qv['static'] || '' != $qv['pagename'] || !empty($qv['page_id']) ) {
1265 $this->is_page = true;
1266 $this->is_single = false;
1267 } elseif ( !empty($qv['s']) ) {
1268 $this->is_search = true;
1269 } else {
1270 // Look for archive queries. Dates, categories, authors.
1271
1272 if ( '' !== $qv['second'] ) {
1273 $this->is_time = true;
1274 $this->is_date = true;
1275 }
1276
1277 if ( '' !== $qv['minute'] ) {
1278 $this->is_time = true;
1279 $this->is_date = true;
1280 }
1281
1282 if ( '' !== $qv['hour'] ) {
1283 $this->is_time = true;
1284 $this->is_date = true;
1285 }
1286
1287 if ( $qv['day'] ) {
1288 if (! $this->is_date) {
1289 $this->is_day = true;
1290 $this->is_date = true;
1291 }
1292 }
1293
1294 if ( $qv['monthnum'] ) {
1295 if (! $this->is_date) {
1296 $this->is_month = true;
1297 $this->is_date = true;
1298 }
1299 }
1300
1301 if ( $qv['year'] ) {
1302 if (! $this->is_date) {
1303 $this->is_year = true;
1304 $this->is_date = true;
1305 }
1306 }
1307
1308 if ( $qv['m'] ) {
1309 $this->is_date = true;
1310 if (strlen($qv['m']) > 9) {
1311 $this->is_time = true;
1312 } else if (strlen($qv['m']) > 7) {
1313 $this->is_day = true;
1314 } else if (strlen($qv['m']) > 5) {
1315 $this->is_month = true;
1316 } else {
1317 $this->is_year = true;
1318 }
1319 }
1320
1321 if ('' != $qv['w']) {
1322 $this->is_date = true;
1323 }
1324
1325 if ( empty($qv['cat']) || ($qv['cat'] == '0') ) {
1326 $this->is_category = false;
1327 } else {
1328 if (strpos($qv['cat'], '-') !== false) {
1329 $this->is_category = false;
1330 } else {
1331 $this->is_category = true;
1332 }
1333 }
1334
1335 if ( '' != $qv['category_name'] ) {
1336 $this->is_category = true;
1337 }
1338
1339 if ( !is_array($qv['category__in']) || empty($qv['category__in']) ) {
1340 $qv['category__in'] = array();
1341 } else {
1342 $qv['category__in'] = array_map('absint', $qv['category__in']);
1343 $this->is_category = true;
1344 }
1345
1346 if ( !is_array($qv['category__not_in']) || empty($qv['category__not_in']) ) {
1347 $qv['category__not_in'] = array();
1348 } else {
1349 $qv['category__not_in'] = array_map('absint', $qv['category__not_in']);
1350 }
1351
1352 if ( !is_array($qv['category__and']) || empty($qv['category__and']) ) {
1353 $qv['category__and'] = array();
1354 } else {
1355 $qv['category__and'] = array_map('absint', $qv['category__and']);
1356 $this->is_category = true;
1357 }
1358
1359 if ( '' != $qv['tag'] )
1360 $this->is_tag = true;
1361
1362 $qv['tag_id'] = absint($qv['tag_id']);
1363 if ( !empty($qv['tag_id']) )
1364 $this->is_tag = true;
1365
1366 if ( !is_array($qv['tag__in']) || empty($qv['tag__in']) ) {
1367 $qv['tag__in'] = array();
1368 } else {
1369 $qv['tag__in'] = array_map('absint', $qv['tag__in']);
1370 $this->is_tag = true;
1371 }
1372
1373 if ( !is_array($qv['tag__not_in']) || empty($qv['tag__not_in']) ) {
1374 $qv['tag__not_in'] = array();
1375 } else {
1376 $qv['tag__not_in'] = array_map('absint', $qv['tag__not_in']);
1377 }
1378
1379 if ( !is_array($qv['tag__and']) || empty($qv['tag__and']) ) {
1380 $qv['tag__and'] = array();
1381 } else {
1382 $qv['tag__and'] = array_map('absint', $qv['tag__and']);
1383 $this->is_category = true;
1384 }
1385
1386 if ( !is_array($qv['tag_slug__in']) || empty($qv['tag_slug__in']) ) {
1387 $qv['tag_slug__in'] = array();
1388 } else {
1389 $qv['tag_slug__in'] = array_map('sanitize_title', $qv['tag_slug__in']);
1390 $this->is_tag = true;
1391 }
1392
1393 if ( !is_array($qv['tag_slug__and']) || empty($qv['tag_slug__and']) ) {
1394 $qv['tag_slug__and'] = array();
1395 } else {
1396 $qv['tag_slug__and'] = array_map('sanitize_title', $qv['tag_slug__and']);
1397 $this->is_tag = true;
1398 }
1399
1400 if ( empty($qv['taxonomy']) || empty($qv['term']) ) {
1401 $this->is_tax = false;
1402 foreach ( $GLOBALS['wp_taxonomies'] as $taxonomy => $t ) {
1403 if ( $t->query_var && isset($qv[$t->query_var]) && '' != $qv[$t->query_var] ) {
1404 $qv['taxonomy'] = $taxonomy;
1405 $qv['term'] = $qv[$t->query_var];
1406 $this->is_tax = true;
1407 break;
1408 }
1409 }
1410 } else {
1411 $this->is_tax = true;
1412 }
1413
1414 if ( empty($qv['author']) || ($qv['author'] == '0') ) {
1415 $this->is_author = false;
1416 } else {
1417 $this->is_author = true;
1418 }
1419
1420 if ( '' != $qv['author_name'] ) {
1421 $this->is_author = true;
1422 }
1423
1424 if ( ($this->is_date || $this->is_author || $this->is_category || $this->is_tag || $this->is_tax) )
1425 $this->is_archive = true;
1426 }
1427
1428 if ( '' != $qv['feed'] )
1429 $this->is_feed = true;
1430
1431 if ( '' != $qv['tb'] )
1432 $this->is_trackback = true;
1433
1434 if ( '' != $qv['paged'] )
1435 $this->is_paged = true;
1436
1437 if ( '' != $qv['comments_popup'] )
1438 $this->is_comments_popup = true;
1439
1440 // if we're previewing inside the write screen
1441 if ('' != $qv['preview'])
1442 $this->is_preview = true;
1443
1444 if ( is_admin() )
1445 $this->is_admin = true;
1446
1447 if ( false !== strpos($qv['feed'], 'comments-') ) {
1448 $qv['feed'] = str_replace('comments-', '', $qv['feed']);
1449 $qv['withcomments'] = 1;
1450 }
1451
1452 $this->is_singular = $this->is_single || $this->is_page || $this->is_attachment;
1453
1454 if ( $this->is_feed && ( !empty($qv['withcomments']) || ( empty($qv['withoutcomments']) && $this->is_singular ) ) )
1455 $this->is_comment_feed = true;
1456
1457 if ( !( $this->is_singular || $this->is_archive || $this->is_search || $this->is_feed || $this->is_trackback || $this->is_404 || $this->is_admin || $this->is_comments_popup || $this->is_robots ) )
1458 $this->is_home = true;
1459
1460 // Correct is_* for page_on_front and page_for_posts
1461 if ( $this->is_home && ( empty($this->query) || $qv['preview'] == 'true' ) && 'page' == get_option('show_on_front') && get_option('page_on_front') ) {
1462 $this->is_page = true;
1463 $this->is_home = false;
1464 $qv['page_id'] = get_option('page_on_front');
1465 }
1466
1467 if ( '' != $qv['pagename'] ) {
1468 $this->queried_object =& get_page_by_path($qv['pagename']);
1469 if ( !empty($this->queried_object) )
1470 $this->queried_object_id = (int) $this->queried_object->ID;
1471 else
1472 unset($this->queried_object);
1473
1474 if ( 'page' == get_option('show_on_front') && isset($this->queried_object_id) && $this->queried_object_id == get_option('page_for_posts') ) {
1475 $this->is_page = false;
1476 $this->is_home = true;
1477 $this->is_posts_page = true;
1478 }
1479 }
1480
1481 if ( $qv['page_id'] ) {
1482 if ( 'page' == get_option('show_on_front') && $qv['page_id'] == get_option('page_for_posts') ) {
1483 $this->is_page = false;
1484 $this->is_home = true;
1485 $this->is_posts_page = true;
1486 }
1487 }
1488
1489 if ( !empty($qv['post_type']) )
1490 $qv['post_type'] = sanitize_user($qv['post_type'], true);
1491
1492 if ( !empty($qv['post_status']) )
1493 $qv['post_status'] = preg_replace('|[^a-z0-9_,-]|', '', $qv['post_status']);
1494
1495 if ( $this->is_posts_page && ( ! isset($qv['withcomments']) || ! $qv['withcomments'] ) )
1496 $this->is_comment_feed = false;
1497
1498 $this->is_singular = $this->is_single || $this->is_page || $this->is_attachment;
1499 // Done correcting is_* for page_on_front and page_for_posts
1500
1501 if ('404' == $qv['error'])
1502 $this->set_404();
1503
1504 if ( !empty($query) )
1505 do_action_ref_array('parse_query', array(&$this));
1506 }
1507
1508 /**
1509 * Sets the 404 property and saves whether query is feed.
1510 *
1511 * @since 2.0.0
1512 * @access public
1513 */
1514 function set_404() {
1515 $is_feed = $this->is_feed;
1516
1517 $this->init_query_flags();
1518 $this->is_404 = true;
1519
1520 $this->is_feed = $is_feed;
1521 }
1522
1523 /**
1524 * Retrieve query variable.
1525 *
1526 * @since 1.5.0
1527 * @access public
1528 *
1529 * @param string $query_var Query variable key.
1530 * @return mixed
1531 */
1532 function get($query_var) {
1533 if (isset($this->query_vars[$query_var])) {
1534 return $this->query_vars[$query_var];
1535 }
1536
1537 return '';
1538 }
1539
1540 /**
1541 * Set query variable.
1542 *
1543 * @since 1.5.0
1544 * @access public
1545 *
1546 * @param string $query_var Query variable key.
1547 * @param mixed $value Query variable value.
1548 */
1549 function set($query_var, $value) {
1550 $this->query_vars[$query_var] = $value;
1551 }
1552
1553 /**
1554 * Retrieve the posts based on query variables.
1555 *
1556 * There are a few filters and actions that can be used to modify the post
1557 * database query.
1558 *
1559 * @since 1.5.0
1560 * @access public
1561 * @uses do_action_ref_array() Calls 'pre_get_posts' hook before retrieving posts.
1562 *
1563 * @return array List of posts.
1564 */
1565 function &get_posts() {
1566 global $wpdb, $user_ID;
1567
1568 do_action_ref_array('pre_get_posts', array(&$this));
1569
1570 // Shorthand.
1571 $q = &$this->query_vars;
1572
1573 $q = $this->fill_query_vars($q);
1574
1575 // First let's clear some variables
1576 $distinct = '';
1577 $whichcat = '';
1578 $whichauthor = '';
1579 $whichmimetype = '';
1580 $where = '';
1581 $limits = '';
1582 $join = '';
1583 $search = '';
1584 $groupby = '';
1585 $fields = "$wpdb->posts.*";
1586 $post_status_join = false;
1587 $page = 1;
1588
1589 if ( !isset($q['caller_get_posts']) )
1590 $q['caller_get_posts'] = false;
1591
1592 if ( !isset($q['suppress_filters']) )
1593 $q['suppress_filters'] = false;
1594
1595 if ( !isset($q['post_type']) ) {
1596 if ( $this->is_search )
1597 $q['post_type'] = 'any';
1598 else
1599 $q['post_type'] = 'post';
1600 }
1601 $post_type = $q['post_type'];
1602 if ( !isset($q['posts_per_page']) || $q['posts_per_page'] == 0 )
1603 $q['posts_per_page'] = get_option('posts_per_page');
1604 if ( isset($q['showposts']) && $q['showposts'] ) {
1605 $q['showposts'] = (int) $q['showposts'];
1606 $q['posts_per_page'] = $q['showposts'];
1607 }
1608 if ( (isset($q['posts_per_archive_page']) && $q['posts_per_archive_page'] != 0) && ($this->is_archive || $this->is_search) )
1609 $q['posts_per_page'] = $q['posts_per_archive_page'];
1610 if ( !isset($q['nopaging']) ) {
1611 if ($q['posts_per_page'] == -1) {
1612 $q['nopaging'] = true;
1613 } else {
1614 $q['nopaging'] = false;
1615 }
1616 }
1617 if ( $this->is_feed ) {
1618 $q['posts_per_page'] = get_option('posts_per_rss');
1619 $q['nopaging'] = false;
1620 }
1621 $q['posts_per_page'] = (int) $q['posts_per_page'];
1622 if ( $q['posts_per_page'] < -1 )
1623 $q['posts_per_page'] = abs($q['posts_per_page']);
1624 else if ( $q['posts_per_page'] == 0 )
1625 $q['posts_per_page'] = 1;
1626
1627 if ( !isset($q['comments_per_page']) || $q['comments_per_page'] == 0 )
1628 $q['comments_per_page'] = get_option('comments_per_page');
1629
1630 if ( $this->is_home && (empty($this->query) || $q['preview'] == 'true') && ( 'page' == get_option('show_on_front') ) && get_option('page_on_front') ) {
1631 $this->is_page = true;
1632 $this->is_home = false;
1633 $q['page_id'] = get_option('page_on_front');
1634 }
1635
1636 if (isset($q['page'])) {
1637 $q['page'] = trim($q['page'], '/');
1638 $q['page'] = absint($q['page']);
1639 }
1640
1641 // If a month is specified in the querystring, load that month
1642 if ( $q['m'] ) {
1643 $q['m'] = '' . preg_replace('|[^0-9]|', '', $q['m']);
1644 $where .= " AND YEAR($wpdb->posts.post_date)=" . substr($q['m'], 0, 4);
1645 if (strlen($q['m'])>5)
1646 $where .= " AND MONTH($wpdb->posts.post_date)=" . substr($q['m'], 4, 2);
1647 if (strlen($q['m'])>7)
1648 $where .= " AND DAYOFMONTH($wpdb->posts.post_date)=" . substr($q['m'], 6, 2);
1649 if (strlen($q['m'])>9)
1650 $where .= " AND HOUR($wpdb->posts.post_date)=" . substr($q['m'], 8, 2);
1651 if (strlen($q['m'])>11)
1652 $where .= " AND MINUTE($wpdb->posts.post_date)=" . substr($q['m'], 10, 2);
1653 if (strlen($q['m'])>13)
1654 $where .= " AND SECOND($wpdb->posts.post_date)=" . substr($q['m'], 12, 2);
1655 }
1656
1657 if ( '' !== $q['hour'] )
1658 $where .= " AND HOUR($wpdb->posts.post_date)='" . $q['hour'] . "'";
1659
1660 if ( '' !== $q['minute'] )
1661 $where .= " AND MINUTE($wpdb->posts.post_date)='" . $q['minute'] . "'";
1662
1663 if ( '' !== $q['second'] )
1664 $where .= " AND SECOND($wpdb->posts.post_date)='" . $q['second'] . "'";
1665
1666 if ( $q['year'] )
1667 $where .= " AND YEAR($wpdb->posts.post_date)='" . $q['year'] . "'";
1668
1669 if ( $q['monthnum'] )
1670 $where .= " AND MONTH($wpdb->posts.post_date)='" . $q['monthnum'] . "'";
1671
1672 if ( $q['day'] )
1673 $where .= " AND DAYOFMONTH($wpdb->posts.post_date)='" . $q['day'] . "'";
1674
1675 if ('' != $q['name']) {
1676 $q['name'] = sanitize_title($q['name']);
1677 $where .= " AND $wpdb->posts.post_name = '" . $q['name'] . "'";
1678 } else if ('' != $q['pagename']) {
1679 if ( isset($this->queried_object_id) )
1680 $reqpage = $this->queried_object_id;
1681 else {
1682 $reqpage = get_page_by_path($q['pagename']);
1683 if ( !empty($reqpage) )
1684 $reqpage = $reqpage->ID;
1685 else
1686 $reqpage = 0;
1687 }
1688
1689 $page_for_posts = get_option('page_for_posts');
1690 if ( ('page' != get_option('show_on_front') ) || empty($page_for_posts) || ( $reqpage != $page_for_posts ) ) {
1691 $q['pagename'] = str_replace('%2F', '/', urlencode(urldecode($q['pagename'])));
1692 $page_paths = '/' . trim($q['pagename'], '/');
1693 $q['pagename'] = sanitize_title(basename($page_paths));
1694 $q['name'] = $q['pagename'];
1695 $where .= " AND ($wpdb->posts.ID = '$reqpage')";
1696 $reqpage_obj = get_page($reqpage);
1697 if ( is_object($reqpage_obj) && 'attachment' == $reqpage_obj->post_type ) {
1698 $this->is_attachment = true;
1699 $this->is_page = true;
1700 $q['attachment_id'] = $reqpage;
1701 }
1702 }
1703 } elseif ('' != $q['attachment']) {
1704 $q['attachment'] = str_replace('%2F', '/', urlencode(urldecode($q['attachment'])));
1705 $attach_paths = '/' . trim($q['attachment'], '/');
1706 $q['attachment'] = sanitize_title(basename($attach_paths));
1707 $q['name'] = $q['attachment'];
1708 $where .= " AND $wpdb->posts.post_name = '" . $q['attachment'] . "'";
1709 }
1710
1711 if ( $q['w'] )
1712 $where .= " AND WEEK($wpdb->posts.post_date, 1)='" . $q['w'] . "'";
1713
1714 if ( intval($q['comments_popup']) )
1715 $q['p'] = absint($q['comments_popup']);
1716
1717 // If an attachment is requested by number, let it supercede any post number.
1718 if ( $q['attachment_id'] )
1719 $q['p'] = absint($q['attachment_id']);
1720
1721 // If a post number is specified, load that post
1722 if ( $q['p'] ) {
1723 $where .= " AND {$wpdb->posts}.ID = " . $q['p'];
1724 } elseif ( $q['post__in'] ) {
1725 $post__in = implode(',', array_map( 'absint', $q['post__in'] ));
1726 $where .= " AND {$wpdb->posts}.ID IN ($post__in)";
1727 } elseif ( $q['post__not_in'] ) {
1728 $post__not_in = implode(',', array_map( 'absint', $q['post__not_in'] ));
1729 $where .= " AND {$wpdb->posts}.ID NOT IN ($post__not_in)";
1730 }
1731
1732 if ( is_numeric($q['post_parent']) )
1733 $where .= $wpdb->prepare( " AND $wpdb->posts.post_parent = %d ", $q['post_parent'] );
1734
1735 if ( $q['page_id'] ) {
1736 if ( ('page' != get_option('show_on_front') ) || ( $q['page_id'] != get_option('page_for_posts') ) ) {
1737 $q['p'] = $q['page_id'];
1738 $where = " AND {$wpdb->posts}.ID = " . $q['page_id'];
1739 }
1740 }
1741
1742 // If a search pattern is specified, load the posts that match
1743 if ( !empty($q['s']) ) {
1744 // added slashes screw with quote grouping when done early, so done later
1745 $q['s'] = stripslashes($q['s']);
1746 if ( !empty($q['sentence']) ) {
1747 $q['search_terms'] = array($q['s']);
1748 } else {
1749 preg_match_all('/".*?("|$)|((?<=[\\s",+])|^)[^\\s",+]+/', $q['s'], $matches);
1750 $q['search_terms'] = array_map(create_function('$a', 'return trim($a, "\\"\'\\n\\r ");'), $matches[0]);
1751 }
1752 $n = !empty($q['exact']) ? '' : '%';
1753 $searchand = '';
1754 foreach( (array) $q['search_terms'] as $term) {
1755 $term = addslashes_gpc($term);
1756 $search .= "{$searchand}(($wpdb->posts.post_title LIKE '{$n}{$term}{$n}') OR ($wpdb->posts.post_content LIKE '{$n}{$term}{$n}'))";
1757 $searchand = ' AND ';
1758 }
1759 $term = $wpdb->escape($q['s']);
1760 if (empty($q['sentence']) && count($q['search_terms']) > 1 && $q['search_terms'][0] != $q['s'] )
1761 $search .= " OR ($wpdb->posts.post_title LIKE '{$n}{$term}{$n}') OR ($wpdb->posts.post_content LIKE '{$n}{$term}{$n}')";
1762
1763 if ( !empty($search) ) {
1764 $search = " AND ({$search}) ";
1765 if ( !is_user_logged_in() )
1766 $search .= " AND ($wpdb->posts.post_password = '') ";
1767 }
1768 }
1769
1770 // Category stuff
1771
1772 if ( empty($q['cat']) || ($q['cat'] == '0') ||
1773 // Bypass cat checks if fetching specific posts
1774 $this->is_singular ) {
1775 $whichcat = '';
1776 } else {
1777 $q['cat'] = ''.urldecode($q['cat']).'';
1778 $q['cat'] = addslashes_gpc($q['cat']);
1779 $cat_array = preg_split('/[,\s]+/', $q['cat']);
1780 $q['cat'] = '';
1781 $req_cats = array();
1782 foreach ( (array) $cat_array as $cat ) {
1783 $cat = intval($cat);
1784 $req_cats[] = $cat;
1785 $in = ($cat > 0);
1786 $cat = abs($cat);
1787 if ( $in ) {
1788 $q['category__in'][] = $cat;
1789 $q['category__in'] = array_merge($q['category__in'], get_term_children($cat, 'category'));
1790 } else {
1791 $q['category__not_in'][] = $cat;
1792 $q['category__not_in'] = array_merge($q['category__not_in'], get_term_children($cat, 'category'));
1793 }
1794 }
1795 $q['cat'] = implode(',', $req_cats);
1796 }
1797
1798 if ( !empty($q['category__in']) ) {
1799 $join = " INNER JOIN $wpdb->term_relationships ON ($wpdb->posts.ID = $wpdb->term_relationships.object_id) INNER JOIN $wpdb->term_taxonomy ON ($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id) ";
1800 $whichcat .= " AND $wpdb->term_taxonomy.taxonomy = 'category' ";
1801 $include_cats = "'" . implode("', '", $q['category__in']) . "'";
1802 $whichcat .= " AND $wpdb->term_taxonomy.term_id IN ($include_cats) ";
1803 }
1804
1805 if ( !empty($q['category__not_in']) ) {
1806 if ( $wpdb->has_cap( 'subqueries' ) ) {
1807 $cat_string = "'" . implode("', '", $q['category__not_in']) . "'";
1808 $whichcat .= " AND $wpdb->posts.ID NOT IN ( SELECT tr.object_id FROM $wpdb->term_relationships AS tr INNER JOIN $wpdb->term_taxonomy AS tt ON tr.term_taxonomy_id = tt.term_taxonomy_id WHERE tt.taxonomy = 'category' AND tt.term_id IN ($cat_string) )";
1809 } else {
1810 $ids = get_objects_in_term($q['category__not_in'], 'category');
1811 if ( !is_wp_error($ids) && is_array($ids) && count($ids) > 0 )
1812 $whichcat .= " AND $wpdb->posts.ID NOT IN ('" . implode("', '", $ids) . "')";
1813 }
1814 }
1815
1816 // Category stuff for nice URLs
1817 if ( '' != $q['category_name'] && !$this->is_singular ) {
1818 $q['category_name'] = implode('/', array_map('sanitize_title', explode('/', $q['category_name'])));
1819 $reqcat = get_category_by_path($q['category_name']);
1820 $q['category_name'] = str_replace('%2F', '/', urlencode(urldecode($q['category_name'])));
1821 $cat_paths = '/' . trim($q['category_name'], '/');
1822 $q['category_name'] = sanitize_title(basename($cat_paths));
1823
1824 $cat_paths = '/' . trim(urldecode($q['category_name']), '/');
1825 $q['category_name'] = sanitize_title(basename($cat_paths));
1826 $cat_paths = explode('/', $cat_paths);
1827 $cat_path = '';
1828 foreach ( (array) $cat_paths as $pathdir )
1829 $cat_path .= ( $pathdir != '' ? '/' : '' ) . sanitize_title($pathdir);
1830
1831 //if we don't match the entire hierarchy fallback on just matching the nicename
1832 if ( empty($reqcat) )
1833 $reqcat = get_category_by_path($q['category_name'], false);
1834
1835 if ( !empty($reqcat) )
1836 $reqcat = $reqcat->term_id;
1837 else
1838 $reqcat = 0;
1839
1840 $q['cat'] = $reqcat;
1841
1842 $join = " INNER JOIN $wpdb->term_relationships ON ($wpdb->posts.ID = $wpdb->term_relationships.object_id) INNER JOIN $wpdb->term_taxonomy ON ($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id) ";
1843 $whichcat = " AND $wpdb->term_taxonomy.taxonomy = 'category' ";
1844 $in_cats = array($q['cat']);
1845 $in_cats = array_merge($in_cats, get_term_children($q['cat'], 'category'));
1846 $in_cats = "'" . implode("', '", $in_cats) . "'";
1847 $whichcat .= "AND $wpdb->term_taxonomy.term_id IN ($in_cats)";
1848 $groupby = "{$wpdb->posts}.ID";
1849 }
1850
1851 // Tags
1852 if ( '' != $q['tag'] ) {
1853 if ( strpos($q['tag'], ',') !== false ) {
1854 $tags = preg_split('/[,\s]+/', $q['tag']);
1855 foreach ( (array) $tags as $tag ) {
1856 $tag = sanitize_term_field('slug', $tag, 0, 'post_tag', 'db');
1857 $q['tag_slug__in'][] = $tag;
1858 }
1859 } else if ( preg_match('/[+\s]+/', $q['tag']) || !empty($q['cat']) ) {
1860 $tags = preg_split('/[+\s]+/', $q['tag']);
1861 foreach ( (array) $tags as $tag ) {
1862 $tag = sanitize_term_field('slug', $tag, 0, 'post_tag', 'db');
1863 $q['tag_slug__and'][] = $tag;
1864 }
1865 } else {
1866 $q['tag'] = sanitize_term_field('slug', $q['tag'], 0, 'post_tag', 'db');
1867 $q['tag_slug__in'][] = $q['tag'];
1868 }
1869 }
1870
1871 if ( !empty($q['category__in']) || !empty($q['meta_key']) || !empty($q['tag__in']) || !empty($q['tag_slug__in']) ) {
1872 $groupby = "{$wpdb->posts}.ID";
1873 }
1874
1875 if ( !empty($q['tag__in']) && empty($q['cat']) ) {
1876 $join = " INNER JOIN $wpdb->term_relationships ON ($wpdb->posts.ID = $wpdb->term_relationships.object_id) INNER JOIN $wpdb->term_taxonomy ON ($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id) ";
1877 $whichcat .= " AND $wpdb->term_taxonomy.taxonomy = 'post_tag' ";
1878 $include_tags = "'" . implode("', '", $q['tag__in']) . "'";
1879 $whichcat .= " AND $wpdb->term_taxonomy.term_id IN ($include_tags) ";
1880 $reqtag = is_term( $q['tag__in'][0], 'post_tag' );
1881 if ( !empty($reqtag) )
1882 $q['tag_id'] = $reqtag['term_id'];
1883 }
1884
1885 if ( !empty($q['tag_slug__in']) && empty($q['cat']) ) {
1886 $join = " INNER JOIN $wpdb->term_relationships ON ($wpdb->posts.ID = $wpdb->term_relationships.object_id) INNER JOIN $wpdb->term_taxonomy ON ($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id) INNER JOIN $wpdb->terms ON ($wpdb->term_taxonomy.term_id = $wpdb->terms.term_id) ";
1887 $whichcat .= " AND $wpdb->term_taxonomy.taxonomy = 'post_tag' ";
1888 $include_tags = "'" . implode("', '", $q['tag_slug__in']) . "'";
1889 $whichcat .= " AND $wpdb->terms.slug IN ($include_tags) ";
1890 $reqtag = get_term_by( 'slug', $q['tag_slug__in'][0], 'post_tag' );
1891 if ( !empty($reqtag) )
1892 $q['tag_id'] = $reqtag->term_id;
1893 }
1894
1895 if ( !empty($q['tag__not_in']) ) {
1896 if ( $wpdb->has_cap( 'subqueries' ) ) {
1897 $tag_string = "'" . implode("', '", $q['tag__not_in']) . "'";
1898 $whichcat .= " AND $wpdb->posts.ID NOT IN ( SELECT tr.object_id FROM $wpdb->term_relationships AS tr INNER JOIN $wpdb->term_taxonomy AS tt ON tr.term_taxonomy_id = tt.term_taxonomy_id WHERE tt.taxonomy = 'post_tag' AND tt.term_id IN ($tag_string) )";
1899 } else {
1900 $ids = get_objects_in_term($q['tag__not_in'], 'post_tag');
1901 if ( !is_wp_error($ids) && is_array($ids) && count($ids) > 0 )
1902 $whichcat .= " AND $wpdb->posts.ID NOT IN ('" . implode("', '", $ids) . "')";
1903 }
1904 }
1905
1906 // Tag and slug intersections.
1907 $intersections = array('category__and' => 'category', 'tag__and' => 'post_tag', 'tag_slug__and' => 'post_tag', 'tag__in' => 'post_tag', 'tag_slug__in' => 'post_tag');
1908 $tagin = array('tag__in', 'tag_slug__in'); // These are used to make some exceptions below
1909 foreach ($intersections as $item => $taxonomy) {
1910 if ( empty($q[$item]) ) continue;
1911 if ( in_array($item, $tagin) && empty($q['cat']) ) continue; // We should already have what we need if categories aren't being used
1912
1913 if ( $item != 'category__and' ) {
1914 $reqtag = is_term( $q[$item][0], 'post_tag' );
1915 if ( !empty($reqtag) )
1916 $q['tag_id'] = $reqtag['term_id'];
1917 }
1918
1919 if ( in_array( $item, array('tag_slug__and', 'tag_slug__in' ) ) )
1920 $taxonomy_field = 'slug';
1921 else
1922 $taxonomy_field = 'term_id';
1923
1924 $q[$item] = array_unique($q[$item]);
1925 $tsql = "SELECT p.ID FROM $wpdb->posts p INNER JOIN $wpdb->term_relationships tr ON (p.ID = tr.object_id) INNER JOIN $wpdb->term_taxonomy tt ON (tr.term_taxonomy_id = tt.term_taxonomy_id) INNER JOIN $wpdb->terms t ON (tt.term_id = t.term_id)";
1926 $tsql .= " WHERE tt.taxonomy = '$taxonomy' AND t.$taxonomy_field IN ('" . implode("', '", $q[$item]) . "')";
1927 if ( !in_array($item, $tagin) ) { // This next line is only helpful if we are doing an and relationship
1928 $tsql .= " GROUP BY p.ID HAVING count(p.ID) = " . count($q[$item]);
1929 }
1930 $post_ids = $wpdb->get_col($tsql);
1931
1932 if ( count($post_ids) )
1933 $whichcat .= " AND $wpdb->posts.ID IN (" . implode(', ', $post_ids) . ") ";
1934 else {
1935 $whichcat = " AND 0 = 1";
1936 break;
1937 }
1938 }
1939
1940 // Taxonomies
1941 if ( $this->is_tax ) {
1942 if ( '' != $q['taxonomy'] ) {
1943 $taxonomy = $q['taxonomy'];
1944 $tt[$taxonomy] = $q['term'];
1945 $terms = get_terms($q['taxonomy'], array('slug'=>$q['term']));
1946 } else {
1947 foreach ( $GLOBALS['wp_taxonomies'] as $taxonomy => $t ) {
1948 if ( $t->query_var && '' != $q[$t->query_var] ) {
1949 $terms = get_terms($taxonomy, array('slug'=>$q[$t->query_var]));
1950 if ( !is_wp_error($terms) )
1951 break;
1952 }
1953 }
1954 }
1955 if ( is_wp_error($terms) || empty($terms) ) {
1956 $whichcat = " AND 0 ";
1957 } else {
1958 foreach ( $terms as $term )
1959 $term_ids[] = $term->term_id;
1960 $post_ids = get_objects_in_term($term_ids, $taxonomy);
1961 if ( !is_wp_error($post_ids) && count($post_ids) ) {
1962 $whichcat .= " AND $wpdb->posts.ID IN (" . implode(', ', $post_ids) . ") ";
1963 $post_type = 'any';
1964 $q['post_status'] = 'publish';
1965 $post_status_join = true;
1966 } else {
1967 $whichcat = " AND 0 ";
1968 }
1969 }
1970 }
1971
1972 // Author/user stuff
1973
1974 if ( empty($q['author']) || ($q['author'] == '0') ) {
1975 $whichauthor='';
1976 } else {
1977 $q['author'] = ''.urldecode($q['author']).'';
1978 $q['author'] = addslashes_gpc($q['author']);
1979 if (strpos($q['author'], '-') !== false) {
1980 $eq = '!=';
1981 $andor = 'AND';
1982 $q['author'] = explode('-', $q['author']);
1983 $q['author'] = '' . absint($q['author'][1]);
1984 } else {
1985 $eq = '=';
1986 $andor = 'OR';
1987 }
1988 $author_array = preg_split('/[,\s]+/', $q['author']);
1989 $whichauthor .= " AND ($wpdb->posts.post_author ".$eq.' '.absint($author_array[0]);
1990 for ($i = 1; $i < (count($author_array)); $i = $i + 1) {
1991 $whichauthor .= ' '.$andor." $wpdb->posts.post_author ".$eq.' '.absint($author_array[$i]);
1992 }
1993 $whichauthor .= ')';
1994 }
1995
1996 // Author stuff for nice URLs
1997
1998 if ('' != $q['author_name']) {
1999 if (strpos($q['author_name'], '/') !== false) {
2000 $q['author_name'] = explode('/',$q['author_name']);
2001 if ($q['author_name'][count($q['author_name'])-1]) {
2002 $q['author_name'] = $q['author_name'][count($q['author_name'])-1];#no trailing slash
2003 } else {
2004 $q['author_name'] = $q['author_name'][count($q['author_name'])-2];#there was a trailling slash
2005 }
2006 }
2007 $q['author_name'] = sanitize_title($q['author_name']);
2008 $q['author'] = $wpdb->get_var("SELECT ID FROM $wpdb->users WHERE user_nicename='".$q['author_name']."'");
2009 $q['author'] = get_user_by('slug', $q['author_name']);
2010 if ( $q['author'] )
2011 $q['author'] = $q['author']->ID;
2012 $whichauthor .= " AND ($wpdb->posts.post_author = ".absint($q['author']).')';
2013 }
2014
2015 // MIME-Type stuff for attachment browsing
2016
2017 if ( isset($q['post_mime_type']) && '' != $q['post_mime_type'] )
2018 $whichmimetype = wp_post_mime_type_where($q['post_mime_type']);
2019
2020 $where .= $search.$whichcat.$whichauthor.$whichmimetype;
2021
2022 if ( empty($q['order']) || ((strtoupper($q['order']) != 'ASC') && (strtoupper($q['order']) != 'DESC')) )
2023 $q['order'] = 'DESC';
2024
2025 // Order by
2026 if ( empty($q['orderby']) ) {
2027 $q['orderby'] = "$wpdb->posts.post_date ".$q['order'];
2028 } elseif ( 'none' == $q['orderby'] ) {
2029 $q['orderby'] = '';
2030 } else {
2031 // Used to filter values
2032 $allowed_keys = array('author', 'date', 'title', 'modified', 'menu_order', 'parent', 'ID', 'rand');
2033 if ( !empty($q['meta_key']) ) {
2034 $allowed_keys[] = $q['meta_key'];
2035 $allowed_keys[] = 'meta_value';
2036 }
2037 $q['orderby'] = urldecode($q['orderby']);
2038 $q['orderby'] = addslashes_gpc($q['orderby']);
2039 $orderby_array = explode(' ',$q['orderby']);
2040 if ( empty($orderby_array) )
2041 $orderby_array[] = $q['orderby'];
2042 $q['orderby'] = '';
2043 for ($i = 0; $i < count($orderby_array); $i++) {
2044 // Only allow certain values for safety
2045 $orderby = $orderby_array[$i];
2046 switch ($orderby) {
2047 case 'menu_order':
2048 break;
2049 case 'ID':
2050 $orderby = "$wpdb->posts.ID";
2051 break;
2052 case 'rand':
2053 $orderby = 'RAND()';
2054 break;
2055 case $q['meta_key']:
2056 case 'meta_value':
2057 $orderby = "$wpdb->postmeta.meta_value";
2058 break;
2059 default:
2060 $orderby = "$wpdb->posts.post_" . $orderby;
2061 }
2062 if ( in_array($orderby_array[$i], $allowed_keys) )
2063 $q['orderby'] .= (($i == 0) ? '' : ',') . $orderby;
2064 }
2065 // append ASC or DESC at the end
2066 if ( !empty($q['orderby']))
2067 $q['orderby'] .= " {$q['order']}";
2068
2069 if ( empty($q['orderby']) )
2070 $q['orderby'] = "$wpdb->posts.post_date ".$q['order'];
2071 }
2072
2073 if ( 'any' == $post_type ) {
2074 $where .= " AND $wpdb->posts.post_type != 'revision'";
2075 } elseif ( $this->is_attachment ) {
2076 $where .= " AND $wpdb->posts.post_type = 'attachment'";
2077 } elseif ($this->is_page) {
2078 $where .= " AND $wpdb->posts.post_type = 'page'";
2079 } elseif ($this->is_single) {
2080 $where .= " AND $wpdb->posts.post_type = 'post'";
2081 } else {
2082 $where .= " AND $wpdb->posts.post_type = '$post_type'";
2083 }
2084
2085 if ( isset($q['post_status']) && '' != $q['post_status'] ) {
2086 $statuswheres = array();
2087 $q_status = explode(',', $q['post_status']);
2088 $r_status = array();
2089 $p_status = array();
2090 if ( in_array( 'draft' , $q_status ) )
2091 $r_status[] = "$wpdb->posts.post_status = 'draft'";
2092 if ( in_array( 'pending', $q_status ) )
2093 $r_status[] = "$wpdb->posts.post_status = 'pending'";
2094 if ( in_array( 'future' , $q_status ) )
2095 $r_status[] = "$wpdb->posts.post_status = 'future'";
2096 if ( in_array( 'inherit' , $q_status ) )
2097 $r_status[] = "$wpdb->posts.post_status = 'inherit'";
2098 if ( in_array( 'private', $q_status ) )
2099 $p_status[] = "$wpdb->posts.post_status = 'private'";
2100 if ( in_array( 'publish', $q_status ) )
2101 $r_status[] = "$wpdb->posts.post_status = 'publish'";
2102
2103 if ( empty($q['perm'] ) || 'readable' != $q['perm'] ) {
2104 $r_status = array_merge($r_status, $p_status);
2105 unset($p_status);
2106 }
2107
2108 if ( !empty($r_status) ) {
2109 if ( !empty($q['perm'] ) && 'editable' == $q['perm'] && !current_user_can("edit_others_{$post_type}s") )
2110 $statuswheres[] = "($wpdb->posts.post_author = $user_ID " . "AND (" . join( ' OR ', $r_status ) . "))";
2111 else
2112 $statuswheres[] = "(" . join( ' OR ', $r_status ) . ")";
2113 }
2114 if ( !empty($p_status) ) {
2115 if ( !empty($q['perm'] ) && 'readable' == $q['perm'] && !current_user_can("read_private_{$post_type}s") )
2116 $statuswheres[] = "($wpdb->posts.post_author = $user_ID " . "AND (" . join( ' OR ', $p_status ) . "))";
2117 else
2118 $statuswheres[] = "(" . join( ' OR ', $p_status ) . ")";
2119 }
2120 if ( $post_status_join ) {
2121 $join .= " LEFT JOIN $wpdb->posts AS p2 ON ($wpdb->posts.post_parent = p2.ID) ";
2122 foreach ( $statuswheres as $index => $statuswhere )
2123 $statuswheres[$index] = "($statuswhere OR ($wpdb->posts.post_status = 'inherit' AND " . str_replace($wpdb->posts, 'p2', $statuswhere) . "))";
2124 }
2125 foreach ( $statuswheres as $statuswhere )
2126 $where .= " AND $statuswhere";
2127 } elseif ( !$this->is_singular ) {
2128 $where .= " AND ($wpdb->posts.post_status = 'publish'";
2129
2130 if ( is_admin() )
2131 $where .= " OR $wpdb->posts.post_status = 'future' OR $wpdb->posts.post_status = 'draft' OR $wpdb->posts.post_status = 'pending'";
2132
2133 if ( is_user_logged_in() ) {
2134 $where .= current_user_can( "read_private_{$post_type}s" ) ? " OR $wpdb->posts.post_status = 'private'" : " OR $wpdb->posts.post_author = $user_ID AND $wpdb->posts.post_status = 'private'";
2135 }
2136
2137 $where .= ')';
2138 }
2139
2140 // postmeta queries
2141 if ( ! empty($q['meta_key']) || ! empty($q['meta_value']) )
2142 $join .= " JOIN $wpdb->postmeta ON ($wpdb->posts.ID = $wpdb->postmeta.post_id) ";
2143 if ( ! empty($q['meta_key']) )
2144 $where .= $wpdb->prepare(" AND $wpdb->postmeta.meta_key = %s ", $q['meta_key']);
2145 if ( ! empty($q['meta_value']) ) {
2146 if ( ! isset($q['meta_compare']) || empty($q['meta_compare']) || ! in_array($q['meta_compare'], array('=', '!=', '>', '>=', '<', '<=')) )
2147 $q['meta_compare'] = '=';
2148
2149 $where .= $wpdb->prepare("AND $wpdb->postmeta.meta_value {$q['meta_compare']} %s ", $q['meta_value']);
2150 }
2151
2152 // Apply filters on where and join prior to paging so that any
2153 // manipulations to them are reflected in the paging by day queries.
2154 if ( !$q['suppress_filters'] ) {
2155 $where = apply_filters('posts_where', $where);
2156 $join = apply_filters('posts_join', $join);
2157 }
2158
2159 // Paging
2160 if ( empty($q['nopaging']) && !$this->is_singular ) {
2161 $page = absint($q['paged']);
2162 if (empty($page)) {
2163 $page = 1;
2164 }
2165
2166 if ( empty($q['offset']) ) {
2167 $pgstrt = '';
2168 $pgstrt = ($page - 1) * $q['posts_per_page'] . ', ';
2169 $limits = 'LIMIT '.$pgstrt.$q['posts_per_page'];
2170 } else { // we're ignoring $page and using 'offset'
2171 $q['offset'] = absint($q['offset']);
2172 $pgstrt = $q['offset'] . ', ';
2173 $limits = 'LIMIT ' . $pgstrt . $q['posts_per_page'];
2174 }
2175 }
2176
2177 // Comments feeds
2178 if ( $this->is_comment_feed && ( $this->is_archive || $this->is_search || !$this->is_singular ) ) {
2179 if ( $this->is_archive || $this->is_search ) {
2180 $cjoin = "JOIN $wpdb->posts ON ($wpdb->comments.comment_post_ID = $wpdb->posts.ID) $join ";
2181 $cwhere = "WHERE comment_approved = '1' $where";
2182 $cgroupby = "$wpdb->comments.comment_id";
2183 } else { // Other non singular e.g. front
2184 $cjoin = "JOIN $wpdb->posts ON ( $wpdb->comments.comment_post_ID = $wpdb->posts.ID )";
2185 $cwhere = "WHERE post_status = 'publish' AND comment_approved = '1'";
2186 $cgroupby = '';
2187 }
2188
2189 if ( !$q['suppress_filters'] ) {
2190 $cjoin = apply_filters('comment_feed_join', $cjoin);
2191 $cwhere = apply_filters('comment_feed_where', $cwhere);
2192 $cgroupby = apply_filters('comment_feed_groupby', $cgroupby);
2193 $corderby = apply_filters('comment_feed_orderby', 'comment_date_gmt DESC');
2194 $climits = apply_filters('comment_feed_limits', 'LIMIT ' . get_option('posts_per_rss'));
2195 }
2196 $cgroupby = ( ! empty( $cgroupby ) ) ? 'GROUP BY ' . $cgroupby : '';
2197 $corderby = ( ! empty( $corderby ) ) ? 'ORDER BY ' . $corderby : '';
2198
2199 $this->comments = (array) $wpdb->get_results("SELECT $distinct $wpdb->comments.* FROM $wpdb->comments $cjoin $cwhere $cgroupby $corderby $climits");
2200 $this->comment_count = count($this->comments);
2201
2202 $post_ids = array();
2203
2204 foreach ($this->comments as $comment)
2205 $post_ids[] = (int) $comment->comment_post_ID;
2206
2207 $post_ids = join(',', $post_ids);
2208 $join = '';
2209 if ( $post_ids )
2210 $where = "AND $wpdb->posts.ID IN ($post_ids) ";
2211 else
2212 $where = "AND 0";
2213 }
2214
2215 $orderby = $q['orderby'];
2216
2217 // Apply post-paging filters on where and join. Only plugins that
2218 // manipulate paging queries should use these hooks.
2219 if ( !$q['suppress_filters'] ) {
2220 $where = apply_filters('posts_where_paged', $where);
2221 $groupby = apply_filters('posts_groupby', $groupby);
2222 $join = apply_filters('posts_join_paged', $join);
2223 $orderby = apply_filters('posts_orderby', $orderby);
2224 $distinct = apply_filters('posts_distinct', $distinct);
2225 $limits = apply_filters( 'post_limits', $limits );
2226
2227 $fields = apply_filters('posts_fields', $fields);
2228 }
2229
2230 // Announce current selection parameters. For use by caching plugins.
2231 do_action( 'posts_selection', $where . $groupby . $orderby . $limits . $join );
2232
2233 // Filter again for the benefit of caching plugins. Regular plugins should use the hooks above.
2234 if ( !$q['suppress_filters'] ) {
2235 $where = apply_filters('posts_where_request', $where);
2236 $groupby = apply_filters('posts_groupby_request', $groupby);
2237 $join = apply_filters('posts_join_request', $join);
2238 $orderby = apply_filters('posts_orderby_request', $orderby);
2239 $distinct = apply_filters('posts_distinct_request', $distinct);
2240 $fields = apply_filters('posts_fields_request', $fields);
2241 $limits = apply_filters( 'post_limits_request', $limits );
2242 }
2243
2244 if ( ! empty($groupby) )
2245 $groupby = 'GROUP BY ' . $groupby;
2246 if ( !empty( $orderby ) )
2247 $orderby = 'ORDER BY ' . $orderby;
2248 $found_rows = '';
2249 if ( !empty($limits) )
2250 $found_rows = 'SQL_CALC_FOUND_ROWS';
2251
2252 $this->request = " SELECT $found_rows $distinct $fields FROM $wpdb->posts $join WHERE 1=1 $where $groupby $orderby $limits";
2253 if ( !$q['suppress_filters'] )
2254 $this->request = apply_filters('posts_request', $this->request);
2255
2256 $this->posts = $wpdb->get_results($this->request);
2257 // Raw results filter. Prior to status checks.
2258 if ( !$q['suppress_filters'] )
2259 $this->posts = apply_filters('posts_results', $this->posts);
2260
2261 if ( !empty($this->posts) && $this->is_comment_feed && $this->is_singular ) {
2262 $cjoin = apply_filters('comment_feed_join', '');
2263 $cwhere = apply_filters('comment_feed_where', "WHERE comment_post_ID = '{$this->posts[0]->ID}' AND comment_approved = '1'");
2264 $cgroupby = apply_filters('comment_feed_groupby', '');
2265 $cgroupby = ( ! empty( $cgroupby ) ) ? 'GROUP BY ' . $cgroupby : '';
2266 $corderby = apply_filters('comment_feed_orderby', 'comment_date_gmt DESC');
2267 $corderby = ( ! empty( $corderby ) ) ? 'ORDER BY ' . $corderby : '';
2268 $climits = apply_filters('comment_feed_limits', 'LIMIT ' . get_option('posts_per_rss'));
2269 $comments_request = "SELECT $wpdb->comments.* FROM $wpdb->comments $cjoin $cwhere $cgroupby $corderby $climits";
2270 $this->comments = $wpdb->get_results($comments_request);
2271 $this->comment_count = count($this->comments);
2272 }
2273
2274 if ( !empty($limits) ) {
2275 $found_posts_query = apply_filters( 'found_posts_query', 'SELECT FOUND_ROWS()' );
2276 $this->found_posts = $wpdb->get_var( $found_posts_query );
2277 $this->found_posts = apply_filters( 'found_posts', $this->found_posts );
2278 $this->max_num_pages = ceil($this->found_posts / $q['posts_per_page']);
2279 }
2280
2281 // Check post status to determine if post should be displayed.
2282 if ( !empty($this->posts) && ($this->is_single || $this->is_page) ) {
2283 $status = get_post_status($this->posts[0]);
2284 //$type = get_post_type($this->posts[0]);
2285 if ( ('publish' != $status) ) {
2286 if ( ! is_user_logged_in() ) {
2287 // User must be logged in to view unpublished posts.
2288 $this->posts = array();
2289 } else {
2290 if (in_array($status, array('draft', 'pending')) ) {
2291 // User must have edit permissions on the draft to preview.
2292 if (! current_user_can('edit_post', $this->posts[0]->ID)) {
2293 $this->posts = array();
2294 } else {
2295 $this->is_preview = true;
2296 $this->posts[0]->post_date = current_time('mysql');
2297 }
2298 } else if ('future' == $status) {
2299 $this->is_preview = true;
2300 if (!current_user_can('edit_post', $this->posts[0]->ID)) {
2301 $this->posts = array ( );
2302 }
2303 } else {
2304 if (! current_user_can('read_post', $this->posts[0]->ID))
2305 $this->posts = array();
2306 }
2307 }
2308 }
2309
2310 if ( $this->is_preview && current_user_can( "edit_{$post_type}", $this->posts[0]->ID ) )
2311 $this->posts[0] = apply_filters('the_preview', $this->posts[0]);
2312 }
2313
2314 // Put sticky posts at the top of the posts array
2315 $sticky_posts = get_option('sticky_posts');
2316 if ( $this->is_home && $page <= 1 && is_array($sticky_posts) && !empty($sticky_posts) && !$q['caller_get_posts'] ) {
2317 $num_posts = count($this->posts);
2318 $sticky_offset = 0;
2319 // Loop over posts and relocate stickies to the front.
2320 for ( $i = 0; $i < $num_posts; $i++ ) {
2321 if ( in_array($this->posts[$i]->ID, $sticky_posts) ) {
2322 $sticky_post = $this->posts[$i];
2323 // Remove sticky from current position
2324 array_splice($this->posts, $i, 1);
2325 // Move to front, after other stickies
2326 array_splice($this->posts, $sticky_offset, 0, array($sticky_post));
2327 // Increment the sticky offset. The next sticky will be placed at this offset.
2328 $sticky_offset++;
2329 // Remove post from sticky posts array
2330 $offset = array_search($sticky_post->ID, $sticky_posts);
2331 array_splice($sticky_posts, $offset, 1);
2332 }
2333 }
2334
2335 // Fetch sticky posts that weren't in the query results
2336 if ( !empty($sticky_posts) ) {
2337 $stickies__in = implode(',', array_map( 'absint', $sticky_posts ));
2338 $stickies = $wpdb->get_results( "SELECT * FROM $wpdb->posts WHERE $wpdb->posts.ID IN ($stickies__in)" );
2339 /** @todo Make sure post is published or viewable by the current user */
2340 foreach ( $stickies as $sticky_post ) {
2341 if ( 'publish' != $sticky_post->post_status )
2342 continue;
2343 array_splice($this->posts, $sticky_offset, 0, array($sticky_post));
2344 $sticky_offset++;
2345 }
2346 }
2347 }
2348
2349 if ( !$q['suppress_filters'] )
2350 $this->posts = apply_filters('the_posts', $this->posts);
2351
2352 update_post_caches($this->posts);
2353
2354 $this->post_count = count($this->posts);
2355 if ($this->post_count > 0) {
2356 $this->post = $this->posts[0];
2357 }
2358
2359 return $this->posts;
2360 }
2361
2362 /**
2363 * Setup the next post and iterate current post index.
2364 *
2365 * @since 1.5.0
2366 * @access public
2367 *
2368 * @return object Next post.
2369 */
2370 function next_post() {
2371
2372 $this->current_post++;
2373
2374 $this->post = $this->posts[$this->current_post];
2375 return $this->post;
2376 }
2377
2378 /**
2379 * Sets up the current post.
2380 *
2381 * Retrieves the next post, sets up the post, sets the 'in the loop'
2382 * property to true.
2383 *
2384 * @since 1.5.0
2385 * @access public
2386 * @uses $post
2387 * @uses do_action_ref_array() Calls 'loop_start' if loop has just started
2388 */
2389 function the_post() {
2390 global $post;
2391 $this->in_the_loop = true;
2392
2393 if ( $this->current_post == -1 ) // loop has just started
2394 do_action_ref_array('loop_start', array(&$this));
2395
2396 $post = $this->next_post();
2397 setup_postdata($post);
2398 }
2399
2400 /**
2401 * Whether there are more posts available in the loop.
2402 *
2403 * Calls action 'loop_end', when the loop is complete.
2404 *
2405 * @since 1.5.0
2406 * @access public
2407 * @uses do_action_ref_array() Calls 'loop_end' if loop is ended
2408 *
2409 * @return bool True if posts are available, false if end of loop.
2410 */
2411 function have_posts() {
2412 if ($this->current_post + 1 < $this->post_count) {
2413 return true;
2414 } elseif ($this->current_post + 1 == $this->post_count && $this->post_count > 0) {
2415 do_action_ref_array('loop_end', array(&$this));
2416 // Do some cleaning up after the loop
2417 $this->rewind_posts();
2418 }
2419
2420 $this->in_the_loop = false;
2421 return false;
2422 }
2423
2424 /**
2425 * Rewind the posts and reset post index.
2426 *
2427 * @since 1.5.0
2428 * @access public
2429 */
2430 function rewind_posts() {
2431 $this->current_post = -1;
2432 if ($this->post_count > 0) {
2433 $this->post = $this->posts[0];
2434 }
2435 }
2436
2437 /**
2438 * Iterate current comment index and return comment object.
2439 *
2440 * @since 2.2.0
2441 * @access public
2442 *
2443 * @return object Comment object.
2444 */
2445 function next_comment() {
2446 $this->current_comment++;
2447
2448 $this->comment = $this->comments[$this->current_comment];
2449 return $this->comment;
2450 }
2451
2452 /**
2453 * Sets up the current comment.
2454 *
2455 * @since 2.2.0
2456 * @access public
2457 * @global object $comment Current comment.
2458 * @uses do_action() Calls 'comment_loop_start' hook when first comment is processed.
2459 */
2460 function the_comment() {
2461 global $comment;
2462
2463 $comment = $this->next_comment();
2464
2465 if ($this->current_comment == 0) {
2466 do_action('comment_loop_start');
2467 }
2468 }
2469
2470 /**
2471 * Whether there are more comments available.
2472 *
2473 * Automatically rewinds comments when finished.
2474 *
2475 * @since 2.2.0
2476 * @access public
2477 *
2478 * @return bool True, if more comments. False, if no more posts.
2479 */
2480 function have_comments() {
2481 if ($this->current_comment + 1 < $this->comment_count) {
2482 return true;
2483 } elseif ($this->current_comment + 1 == $this->comment_count) {
2484 $this->rewind_comments();
2485 }
2486
2487 return false;
2488 }
2489
2490 /**
2491 * Rewind the comments, resets the comment index and comment to first.
2492 *
2493 * @since 2.2.0
2494 * @access public
2495 */
2496 function rewind_comments() {
2497 $this->current_comment = -1;
2498 if ($this->comment_count > 0) {
2499 $this->comment = $this->comments[0];
2500 }
2501 }
2502
2503 /**
2504 * Sets up the WordPress query by parsing query string.
2505 *
2506 * @since 1.5.0
2507 * @access public
2508 *
2509 * @param string $query URL query string.
2510 * @return array List of posts.
2511 */
2512 function &query($query) {
2513 $this->parse_query($query);
2514 return $this->get_posts();
2515 }
2516
2517 /**
2518 * Retrieve queried object.
2519 *
2520 * If queried object is not set, then the queried object will be set from
2521 * the category, tag, taxonomy, posts page, single post, page, or author
2522 * query variable. After it is set up, it will be returned.
2523 *
2524 * @since 1.5.0
2525 * @access public
2526 *
2527 * @return object
2528 */
2529 function get_queried_object() {
2530 if (isset($this->queried_object)) {
2531 return $this->queried_object;
2532 }
2533
2534 $this->queried_object = NULL;
2535 $this->queried_object_id = 0;
2536
2537 if ($this->is_category) {
2538 $cat = $this->get('cat');
2539 $category = &get_category($cat);
2540 if ( is_wp_error( $category ) )
2541 return NULL;
2542 $this->queried_object = &$category;
2543 $this->queried_object_id = (int) $cat;
2544 } else if ($this->is_tag) {
2545 $tag_id = $this->get('tag_id');
2546 $tag = &get_term($tag_id, 'post_tag');
2547 if ( is_wp_error( $tag ) )
2548 return NULL;
2549 $this->queried_object = &$tag;
2550 $this->queried_object_id = (int) $tag_id;
2551 } else if ($this->is_tax) {
2552 $tax = $this->get('taxonomy');
2553 $slug = $this->get('term');
2554 $term = &get_terms($tax, array('slug'=>$slug));
2555 if ( is_wp_error($term) || empty($term) )
2556 return NULL;
2557 $term = $term[0];
2558 $this->queried_object = $term;
2559 $this->queried_object_id = $term->term_id;
2560 } else if ($this->is_posts_page) {
2561 $this->queried_object = & get_page(get_option('page_for_posts'));
2562 $this->queried_object_id = (int) $this->queried_object->ID;
2563 } else if ($this->is_single) {
2564 $this->queried_object = $this->post;
2565 $this->queried_object_id = (int) $this->post->ID;
2566 } else if ($this->is_page) {
2567 $this->queried_object = $this->post;
2568 $this->queried_object_id = (int) $this->post->ID;
2569 } else if ($this->is_author) {
2570 $author_id = (int) $this->get('author');
2571 $author = get_userdata($author_id);
2572 $this->queried_object = $author;
2573 $this->queried_object_id = $author_id;
2574 }
2575
2576 return $this->queried_object;
2577 }
2578
2579 /**
2580 * Retrieve ID of the current queried object.
2581 *
2582 * @since 1.5.0
2583 * @access public
2584 *
2585 * @return int
2586 */
2587 function get_queried_object_id() {
2588 $this->get_queried_object();
2589
2590 if (isset($this->queried_object_id)) {
2591 return $this->queried_object_id;
2592 }
2593
2594 return 0;
2595 }
2596
2597 /**
2598 * PHP4 type constructor.
2599 *
2600 * Sets up the WordPress query, if parameter is not empty.
2601 *
2602 * @since 1.5.0
2603 * @access public
2604 *
2605 * @param string $query URL query string.
2606 * @return WP_Query
2607 */
2608 function WP_Query ($query = '') {
2609 if (! empty($query)) {
2610 $this->query($query);
2611 }
2612 }
2613}
2614
2615/**
2616 * Redirect old slugs to the correct permalink.
2617 *
2618 * Attempts to find the current slug from the past slugs.
2619 *
2620 * @since 2.1.0
2621 * @uses $wp_query
2622 * @uses $wpdb
2623 *
2624 * @return null If no link is found, null is returned.
2625 */
2626function wp_old_slug_redirect () {
2627 global $wp_query;
2628 if ( is_404() && '' != $wp_query->query_vars['name'] ) :
2629 global $wpdb;
2630
2631 $query = "SELECT post_id FROM $wpdb->postmeta, $wpdb->posts WHERE ID = post_id AND meta_key = '_wp_old_slug' AND meta_value='" . $wp_query->query_vars['name'] . "'";
2632
2633 // if year, monthnum, or day have been specified, make our query more precise
2634 // just in case there are multiple identical _wp_old_slug values
2635 if ( '' != $wp_query->query_vars['year'] )
2636 $query .= " AND YEAR(post_date) = '{$wp_query->query_vars['year']}'";
2637 if ( '' != $wp_query->query_vars['monthnum'] )
2638 $query .= " AND MONTH(post_date) = '{$wp_query->query_vars['monthnum']}'";
2639 if ( '' != $wp_query->query_vars['day'] )
2640 $query .= " AND DAYOFMONTH(post_date) = '{$wp_query->query_vars['day']}'";
2641
2642 $id = (int) $wpdb->get_var($query);
2643
2644 if ( !$id )
2645 return;
2646
2647 $link = get_permalink($id);
2648
2649 if ( !$link )
2650 return;
2651
2652 wp_redirect($link, '301'); // Permanent redirect
2653 exit;
2654 endif;
2655}
2656
2657/**
2658 * Setup global post data.
2659 *
2660 * @since 1.5.0
2661 *
2662 * @param object $post Post data.
2663 * @uses do_action_ref_array() Calls 'the_post'
2664 * @return bool True when finished.
2665 */
2666function setup_postdata($post) {
2667 global $id, $authordata, $day, $currentmonth, $page, $pages, $multipage, $more, $numpages;
2668
2669 $id = (int) $post->ID;
2670
2671 $authordata = get_userdata($post->post_author);
2672
2673 $day = mysql2date('d.m.y', $post->post_date, false);
2674 $currentmonth = mysql2date('m', $post->post_date, false);
2675 $numpages = 1;
2676 $page = get_query_var('page');
2677 if ( !$page )
2678 $page = 1;
2679 if ( is_single() || is_page() || is_feed() )
2680 $more = 1;
2681 $content = $post->post_content;
2682 if ( strpos( $content, '<!--nextpage-->' ) ) {
2683 if ( $page > 1 )
2684 $more = 1;
2685 $multipage = 1;
2686 $content = str_replace("\n<!--nextpage-->\n", '<!--nextpage-->', $content);
2687 $content = str_replace("\n<!--nextpage-->", '<!--nextpage-->', $content);
2688 $content = str_replace("<!--nextpage-->\n", '<!--nextpage-->', $content);
2689 $pages = explode('<!--nextpage-->', $content);
2690 $numpages = count($pages);
2691 } else {
2692 $pages[0] = $post->post_content;
2693 $multipage = 0;
2694 }
2695
2696 do_action_ref_array('the_post', array(&$post));
2697
2698 return true;
2699}
2700
2701?>
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