3 * WordPress Post Administration API.
6 * @subpackage Administration
10 * Rename $_POST data from form names to DB post columns.
12 * Manipulates $_POST directly.
17 * @param bool $update Are we updating a pre-existing post?
18 * @param array $post_data Array of post data. Defaults to the contents of $_POST.
19 * @return object|bool WP_Error on failure, true on success.
21 function _wp_translate_postdata( $update = false, $post_data = null ) {
23 if ( empty($post_data) )
27 $post_data['ID'] = (int) $post_data['post_ID'];
29 $ptype = get_post_type_object( $post_data['post_type'] );
31 if ( $update && ! current_user_can( 'edit_post', $post_data['ID'] ) ) {
32 if ( 'page' == $post_data['post_type'] )
33 return new WP_Error( 'edit_others_pages', __( 'Sorry, you are not allowed to edit pages as this user.' ) );
35 return new WP_Error( 'edit_others_posts', __( 'Sorry, you are not allowed to edit posts as this user.' ) );
36 } elseif ( ! $update && ! current_user_can( $ptype->cap->create_posts ) ) {
37 if ( 'page' == $post_data['post_type'] )
38 return new WP_Error( 'edit_others_pages', __( 'Sorry, you are not allowed to create pages as this user.' ) );
40 return new WP_Error( 'edit_others_posts', __( 'Sorry, you are not allowed to create posts as this user.' ) );
43 if ( isset( $post_data['content'] ) )
44 $post_data['post_content'] = $post_data['content'];
46 if ( isset( $post_data['excerpt'] ) )
47 $post_data['post_excerpt'] = $post_data['excerpt'];
49 if ( isset( $post_data['parent_id'] ) )
50 $post_data['post_parent'] = (int) $post_data['parent_id'];
52 if ( isset($post_data['trackback_url']) )
53 $post_data['to_ping'] = $post_data['trackback_url'];
55 $post_data['user_ID'] = get_current_user_id();
57 if (!empty ( $post_data['post_author_override'] ) ) {
58 $post_data['post_author'] = (int) $post_data['post_author_override'];
60 if (!empty ( $post_data['post_author'] ) ) {
61 $post_data['post_author'] = (int) $post_data['post_author'];
63 $post_data['post_author'] = (int) $post_data['user_ID'];
67 if ( isset( $post_data['user_ID'] ) && ( $post_data['post_author'] != $post_data['user_ID'] )
68 && ! current_user_can( $ptype->cap->edit_others_posts ) ) {
70 if ( 'page' == $post_data['post_type'] )
71 return new WP_Error( 'edit_others_pages', __( 'Sorry, you are not allowed to edit pages as this user.' ) );
73 return new WP_Error( 'edit_others_posts', __( 'Sorry, you are not allowed to edit posts as this user.' ) );
75 if ( 'page' == $post_data['post_type'] )
76 return new WP_Error( 'edit_others_pages', __( 'Sorry, you are not allowed to create pages as this user.' ) );
78 return new WP_Error( 'edit_others_posts', __( 'Sorry, you are not allowed to create posts as this user.' ) );
82 if ( ! empty( $post_data['post_status'] ) ) {
83 $post_data['post_status'] = sanitize_key( $post_data['post_status'] );
85 // No longer an auto-draft
86 if ( 'auto-draft' === $post_data['post_status'] ) {
87 $post_data['post_status'] = 'draft';
90 if ( ! get_post_status_object( $post_data['post_status'] ) ) {
91 unset( $post_data['post_status'] );
95 // What to do based on which button they pressed
96 if ( isset($post_data['saveasdraft']) && '' != $post_data['saveasdraft'] )
97 $post_data['post_status'] = 'draft';
98 if ( isset($post_data['saveasprivate']) && '' != $post_data['saveasprivate'] )
99 $post_data['post_status'] = 'private';
100 if ( isset($post_data['publish']) && ( '' != $post_data['publish'] ) && ( !isset($post_data['post_status']) || $post_data['post_status'] != 'private' ) )
101 $post_data['post_status'] = 'publish';
102 if ( isset($post_data['advanced']) && '' != $post_data['advanced'] )
103 $post_data['post_status'] = 'draft';
104 if ( isset($post_data['pending']) && '' != $post_data['pending'] )
105 $post_data['post_status'] = 'pending';
107 if ( isset( $post_data['ID'] ) )
108 $post_id = $post_data['ID'];
111 $previous_status = $post_id ? get_post_field( 'post_status', $post_id ) : false;
113 if ( isset( $post_data['post_status'] ) && 'private' == $post_data['post_status'] && ! current_user_can( $ptype->cap->publish_posts ) ) {
114 $post_data['post_status'] = $previous_status ? $previous_status : 'pending';
117 $published_statuses = array( 'publish', 'future' );
119 // Posts 'submitted for approval' present are submitted to $_POST the same as if they were being published.
120 // Change status from 'publish' to 'pending' if user lacks permissions to publish or to resave published posts.
121 if ( isset($post_data['post_status']) && (in_array( $post_data['post_status'], $published_statuses ) && !current_user_can( $ptype->cap->publish_posts )) )
122 if ( ! in_array( $previous_status, $published_statuses ) || !current_user_can( 'edit_post', $post_id ) )
123 $post_data['post_status'] = 'pending';
125 if ( ! isset( $post_data['post_status'] ) ) {
126 $post_data['post_status'] = 'auto-draft' === $previous_status ? 'draft' : $previous_status;
129 if ( isset( $post_data['post_password'] ) && ! current_user_can( $ptype->cap->publish_posts ) ) {
130 unset( $post_data['post_password'] );
133 if (!isset( $post_data['comment_status'] ))
134 $post_data['comment_status'] = 'closed';
136 if (!isset( $post_data['ping_status'] ))
137 $post_data['ping_status'] = 'closed';
139 foreach ( array('aa', 'mm', 'jj', 'hh', 'mn') as $timeunit ) {
140 if ( !empty( $post_data['hidden_' . $timeunit] ) && $post_data['hidden_' . $timeunit] != $post_data[$timeunit] ) {
141 $post_data['edit_date'] = '1';
146 if ( !empty( $post_data['edit_date'] ) ) {
147 $aa = $post_data['aa'];
148 $mm = $post_data['mm'];
149 $jj = $post_data['jj'];
150 $hh = $post_data['hh'];
151 $mn = $post_data['mn'];
152 $ss = $post_data['ss'];
153 $aa = ($aa <= 0 ) ? date('Y') : $aa;
154 $mm = ($mm <= 0 ) ? date('n') : $mm;
155 $jj = ($jj > 31 ) ? 31 : $jj;
156 $jj = ($jj <= 0 ) ? date('j') : $jj;
157 $hh = ($hh > 23 ) ? $hh -24 : $hh;
158 $mn = ($mn > 59 ) ? $mn -60 : $mn;
159 $ss = ($ss > 59 ) ? $ss -60 : $ss;
160 $post_data['post_date'] = sprintf( "%04d-%02d-%02d %02d:%02d:%02d", $aa, $mm, $jj, $hh, $mn, $ss );
161 $valid_date = wp_checkdate( $mm, $jj, $aa, $post_data['post_date'] );
162 if ( !$valid_date ) {
163 return new WP_Error( 'invalid_date', __( 'Whoops, the provided date is invalid.' ) );
165 $post_data['post_date_gmt'] = get_gmt_from_date( $post_data['post_date'] );
168 if ( isset( $post_data['post_category'] ) ) {
169 $category_object = get_taxonomy( 'category' );
170 if ( ! current_user_can( $category_object->cap->assign_terms ) ) {
171 unset( $post_data['post_category'] );
179 * Update an existing post with values provided in $_POST.
183 * @global wpdb $wpdb WordPress database abstraction object.
185 * @param array $post_data Optional.
186 * @return int Post ID.
188 function edit_post( $post_data = null ) {
191 if ( empty($post_data) )
192 $post_data = &$_POST;
194 // Clear out any data in internal vars.
195 unset( $post_data['filter'] );
197 $post_ID = (int) $post_data['post_ID'];
198 $post = get_post( $post_ID );
199 $post_data['post_type'] = $post->post_type;
200 $post_data['post_mime_type'] = $post->post_mime_type;
202 if ( ! empty( $post_data['post_status'] ) ) {
203 $post_data['post_status'] = sanitize_key( $post_data['post_status'] );
205 if ( 'inherit' == $post_data['post_status'] ) {
206 unset( $post_data['post_status'] );
210 $ptype = get_post_type_object($post_data['post_type']);
211 if ( !current_user_can( 'edit_post', $post_ID ) ) {
212 if ( 'page' == $post_data['post_type'] )
213 wp_die( __('Sorry, you are not allowed to edit this page.' ));
215 wp_die( __('Sorry, you are not allowed to edit this post.' ));
218 if ( post_type_supports( $ptype->name, 'revisions' ) ) {
219 $revisions = wp_get_post_revisions( $post_ID, array( 'order' => 'ASC', 'posts_per_page' => 1 ) );
220 $revision = current( $revisions );
222 // Check if the revisions have been upgraded
223 if ( $revisions && _wp_get_post_revision_version( $revision ) < 1 )
224 _wp_upgrade_revisions_of_post( $post, wp_get_post_revisions( $post_ID ) );
227 if ( isset($post_data['visibility']) ) {
228 switch ( $post_data['visibility'] ) {
230 $post_data['post_password'] = '';
233 unset( $post_data['sticky'] );
236 $post_data['post_status'] = 'private';
237 $post_data['post_password'] = '';
238 unset( $post_data['sticky'] );
243 $post_data = _wp_translate_postdata( true, $post_data );
244 if ( is_wp_error($post_data) )
245 wp_die( $post_data->get_error_message() );
248 if ( isset( $post_data['post_format'] ) )
249 set_post_format( $post_ID, $post_data['post_format'] );
251 $format_meta_urls = array( 'url', 'link_url', 'quote_source_url' );
252 foreach ( $format_meta_urls as $format_meta_url ) {
253 $keyed = '_format_' . $format_meta_url;
254 if ( isset( $post_data[ $keyed ] ) )
255 update_post_meta( $post_ID, $keyed, wp_slash( esc_url_raw( wp_unslash( $post_data[ $keyed ] ) ) ) );
258 $format_keys = array( 'quote', 'quote_source_name', 'image', 'gallery', 'audio_embed', 'video_embed' );
260 foreach ( $format_keys as $key ) {
261 $keyed = '_format_' . $key;
262 if ( isset( $post_data[ $keyed ] ) ) {
263 if ( current_user_can( 'unfiltered_html' ) )
264 update_post_meta( $post_ID, $keyed, $post_data[ $keyed ] );
266 update_post_meta( $post_ID, $keyed, wp_filter_post_kses( $post_data[ $keyed ] ) );
270 if ( 'attachment' === $post_data['post_type'] && preg_match( '#^(audio|video)/#', $post_data['post_mime_type'] ) ) {
271 $id3data = wp_get_attachment_metadata( $post_ID );
272 if ( ! is_array( $id3data ) ) {
276 foreach ( wp_get_attachment_id3_keys( $post, 'edit' ) as $key => $label ) {
277 if ( isset( $post_data[ 'id3_' . $key ] ) ) {
278 $id3data[ $key ] = sanitize_text_field( wp_unslash( $post_data[ 'id3_' . $key ] ) );
281 wp_update_attachment_metadata( $post_ID, $id3data );
285 if ( isset($post_data['meta']) && $post_data['meta'] ) {
286 foreach ( $post_data['meta'] as $key => $value ) {
287 if ( !$meta = get_post_meta_by_id( $key ) )
289 if ( $meta->post_id != $post_ID )
291 if ( is_protected_meta( $value['key'], 'post' ) || ! current_user_can( 'edit_post_meta', $post_ID, $value['key'] ) )
293 update_meta( $key, $value['key'], $value['value'] );
297 if ( isset($post_data['deletemeta']) && $post_data['deletemeta'] ) {
298 foreach ( $post_data['deletemeta'] as $key => $value ) {
299 if ( !$meta = get_post_meta_by_id( $key ) )
301 if ( $meta->post_id != $post_ID )
303 if ( is_protected_meta( $meta->meta_key, 'post' ) || ! current_user_can( 'delete_post_meta', $post_ID, $meta->meta_key ) )
310 if ( 'attachment' == $post_data['post_type'] ) {
311 if ( isset( $post_data[ '_wp_attachment_image_alt' ] ) ) {
312 $image_alt = wp_unslash( $post_data['_wp_attachment_image_alt'] );
313 if ( $image_alt != get_post_meta( $post_ID, '_wp_attachment_image_alt', true ) ) {
314 $image_alt = wp_strip_all_tags( $image_alt, true );
315 // update_meta expects slashed.
316 update_post_meta( $post_ID, '_wp_attachment_image_alt', wp_slash( $image_alt ) );
320 $attachment_data = isset( $post_data['attachments'][ $post_ID ] ) ? $post_data['attachments'][ $post_ID ] : array();
322 /** This filter is documented in wp-admin/includes/media.php */
323 $post_data = apply_filters( 'attachment_fields_to_save', $post_data, $attachment_data );
326 // Convert taxonomy input to term IDs, to avoid ambiguity.
327 if ( isset( $post_data['tax_input'] ) ) {
328 foreach ( (array) $post_data['tax_input'] as $taxonomy => $terms ) {
329 // Hierarchical taxonomy data is already sent as term IDs, so no conversion is necessary.
330 if ( is_taxonomy_hierarchical( $taxonomy ) ) {
335 * Assume that a 'tax_input' string is a comma-separated list of term names.
336 * Some languages may use a character other than a comma as a delimiter, so we standardize on
337 * commas before parsing the list.
339 if ( ! is_array( $terms ) ) {
340 $comma = _x( ',', 'tag delimiter' );
341 if ( ',' !== $comma ) {
342 $terms = str_replace( $comma, ',', $terms );
344 $terms = explode( ',', trim( $terms, " \n\t\r\0\x0B," ) );
347 $clean_terms = array();
348 foreach ( $terms as $term ) {
349 // Empty terms are invalid input.
350 if ( empty( $term ) ) {
354 $_term = get_terms( $taxonomy, array(
357 'hide_empty' => false,
360 if ( ! empty( $_term ) ) {
361 $clean_terms[] = intval( $_term[0] );
363 // No existing term was found, so pass the string. A new term will be created.
364 $clean_terms[] = $term;
368 $post_data['tax_input'][ $taxonomy ] = $clean_terms;
372 add_meta( $post_ID );
374 update_post_meta( $post_ID, '_edit_last', get_current_user_id() );
376 $success = wp_update_post( $post_data );
377 // If the save failed, see if we can sanity check the main fields and try again
378 if ( ! $success && is_callable( array( $wpdb, 'strip_invalid_text_for_column' ) ) ) {
379 $fields = array( 'post_title', 'post_content', 'post_excerpt' );
381 foreach ( $fields as $field ) {
382 if ( isset( $post_data[ $field ] ) ) {
383 $post_data[ $field ] = $wpdb->strip_invalid_text_for_column( $wpdb->posts, $field, $post_data[ $field ] );
387 wp_update_post( $post_data );
390 // Now that we have an ID we can fix any attachment anchor hrefs
391 _fix_attachment_links( $post_ID );
393 wp_set_post_lock( $post_ID );
395 if ( current_user_can( $ptype->cap->edit_others_posts ) && current_user_can( $ptype->cap->publish_posts ) ) {
396 if ( ! empty( $post_data['sticky'] ) )
397 stick_post( $post_ID );
399 unstick_post( $post_ID );
406 * Process the post data for the bulk editing of posts.
408 * Updates all bulk edited posts/pages, adding (but not removing) tags and
409 * categories. Skips pages when they would be their own parent or child.
413 * @global wpdb $wpdb WordPress database abstraction object.
415 * @param array $post_data Optional, the array of post data to process if not provided will use $_POST superglobal.
418 function bulk_edit_posts( $post_data = null ) {
421 if ( empty($post_data) )
422 $post_data = &$_POST;
424 if ( isset($post_data['post_type']) )
425 $ptype = get_post_type_object($post_data['post_type']);
427 $ptype = get_post_type_object('post');
429 if ( !current_user_can( $ptype->cap->edit_posts ) ) {
430 if ( 'page' == $ptype->name )
431 wp_die( __('Sorry, you are not allowed to edit pages.'));
433 wp_die( __('Sorry, you are not allowed to edit posts.'));
436 if ( -1 == $post_data['_status'] ) {
437 $post_data['post_status'] = null;
438 unset($post_data['post_status']);
440 $post_data['post_status'] = $post_data['_status'];
442 unset($post_data['_status']);
444 if ( ! empty( $post_data['post_status'] ) ) {
445 $post_data['post_status'] = sanitize_key( $post_data['post_status'] );
447 if ( 'inherit' == $post_data['post_status'] ) {
448 unset( $post_data['post_status'] );
452 $post_IDs = array_map( 'intval', (array) $post_data['post'] );
455 'post_author', 'post_status', 'post_password',
456 'post_parent', 'page_template', 'comment_status',
457 'ping_status', 'keep_private', 'tax_input',
458 'post_category', 'sticky', 'post_format',
461 foreach ( $reset as $field ) {
462 if ( isset($post_data[$field]) && ( '' == $post_data[$field] || -1 == $post_data[$field] ) )
463 unset($post_data[$field]);
466 if ( isset($post_data['post_category']) ) {
467 if ( is_array($post_data['post_category']) && ! empty($post_data['post_category']) )
468 $new_cats = array_map( 'absint', $post_data['post_category'] );
470 unset($post_data['post_category']);
473 $tax_input = array();
474 if ( isset($post_data['tax_input'])) {
475 foreach ( $post_data['tax_input'] as $tax_name => $terms ) {
478 if ( is_taxonomy_hierarchical( $tax_name ) ) {
479 $tax_input[ $tax_name ] = array_map( 'absint', $terms );
481 $comma = _x( ',', 'tag delimiter' );
482 if ( ',' !== $comma )
483 $terms = str_replace( $comma, ',', $terms );
484 $tax_input[ $tax_name ] = explode( ',', trim( $terms, " \n\t\r\0\x0B," ) );
489 if ( isset($post_data['post_parent']) && ($parent = (int) $post_data['post_parent']) ) {
490 $pages = $wpdb->get_results("SELECT ID, post_parent FROM $wpdb->posts WHERE post_type = 'page'");
493 for ( $i = 0; $i < 50 && $parent > 0; $i++ ) {
494 $children[] = $parent;
496 foreach ( $pages as $page ) {
497 if ( $page->ID == $parent ) {
498 $parent = $page->post_parent;
505 $updated = $skipped = $locked = array();
506 $shared_post_data = $post_data;
508 foreach ( $post_IDs as $post_ID ) {
509 // Start with fresh post data with each iteration.
510 $post_data = $shared_post_data;
512 $post_type_object = get_post_type_object( get_post_type( $post_ID ) );
514 if ( !isset( $post_type_object ) || ( isset($children) && in_array($post_ID, $children) ) || !current_user_can( 'edit_post', $post_ID ) ) {
515 $skipped[] = $post_ID;
519 if ( wp_check_post_lock( $post_ID ) ) {
520 $locked[] = $post_ID;
524 $post = get_post( $post_ID );
525 $tax_names = get_object_taxonomies( $post );
526 foreach ( $tax_names as $tax_name ) {
527 $taxonomy_obj = get_taxonomy($tax_name);
528 if ( isset( $tax_input[$tax_name]) && current_user_can( $taxonomy_obj->cap->assign_terms ) )
529 $new_terms = $tax_input[$tax_name];
531 $new_terms = array();
533 if ( $taxonomy_obj->hierarchical )
534 $current_terms = (array) wp_get_object_terms( $post_ID, $tax_name, array('fields' => 'ids') );
536 $current_terms = (array) wp_get_object_terms( $post_ID, $tax_name, array('fields' => 'names') );
538 $post_data['tax_input'][$tax_name] = array_merge( $current_terms, $new_terms );
541 if ( isset($new_cats) && in_array( 'category', $tax_names ) ) {
542 $cats = (array) wp_get_post_categories($post_ID);
543 $post_data['post_category'] = array_unique( array_merge($cats, $new_cats) );
544 unset( $post_data['tax_input']['category'] );
547 $post_data['post_type'] = $post->post_type;
548 $post_data['post_mime_type'] = $post->post_mime_type;
549 $post_data['guid'] = $post->guid;
551 foreach ( array( 'comment_status', 'ping_status', 'post_author' ) as $field ) {
552 if ( ! isset( $post_data[ $field ] ) ) {
553 $post_data[ $field ] = $post->$field;
557 $post_data['ID'] = $post_ID;
558 $post_data['post_ID'] = $post_ID;
560 $post_data = _wp_translate_postdata( true, $post_data );
561 if ( is_wp_error( $post_data ) ) {
562 $skipped[] = $post_ID;
566 $updated[] = wp_update_post( $post_data );
568 if ( isset( $post_data['sticky'] ) && current_user_can( $ptype->cap->edit_others_posts ) ) {
569 if ( 'sticky' == $post_data['sticky'] )
570 stick_post( $post_ID );
572 unstick_post( $post_ID );
575 if ( isset( $post_data['post_format'] ) )
576 set_post_format( $post_ID, $post_data['post_format'] );
579 return array( 'updated' => $updated, 'skipped' => $skipped, 'locked' => $locked );
583 * Default post information to use when populating the "Write Post" form.
587 * @param string $post_type Optional. A post type string. Default 'post'.
588 * @param bool $create_in_db Optional. Whether to insert the post into database. Default false.
589 * @return WP_Post Post object containing all the default post data as attributes
591 function get_default_post_to_edit( $post_type = 'post', $create_in_db = false ) {
593 if ( !empty( $_REQUEST['post_title'] ) )
594 $post_title = esc_html( wp_unslash( $_REQUEST['post_title'] ));
597 if ( !empty( $_REQUEST['content'] ) )
598 $post_content = esc_html( wp_unslash( $_REQUEST['content'] ));
601 if ( !empty( $_REQUEST['excerpt'] ) )
602 $post_excerpt = esc_html( wp_unslash( $_REQUEST['excerpt'] ));
604 if ( $create_in_db ) {
605 $post_id = wp_insert_post( array( 'post_title' => __( 'Auto Draft' ), 'post_type' => $post_type, 'post_status' => 'auto-draft' ) );
606 $post = get_post( $post_id );
607 if ( current_theme_supports( 'post-formats' ) && post_type_supports( $post->post_type, 'post-formats' ) && get_option( 'default_post_format' ) )
608 set_post_format( $post, get_option( 'default_post_format' ) );
610 $post = new stdClass;
612 $post->post_author = '';
613 $post->post_date = '';
614 $post->post_date_gmt = '';
615 $post->post_password = '';
616 $post->post_name = '';
617 $post->post_type = $post_type;
618 $post->post_status = 'draft';
621 $post->comment_status = get_default_comment_status( $post_type );
622 $post->ping_status = get_default_comment_status( $post_type, 'pingback' );
623 $post->post_pingback = get_option( 'default_pingback_flag' );
624 $post->post_category = get_option( 'default_category' );
625 $post->page_template = 'default';
626 $post->post_parent = 0;
627 $post->menu_order = 0;
628 $post = new WP_Post( $post );
632 * Filters the default post content initially used in the "Write Post" form.
636 * @param string $post_content Default post content.
637 * @param WP_Post $post Post object.
639 $post->post_content = apply_filters( 'default_content', $post_content, $post );
642 * Filters the default post title initially used in the "Write Post" form.
646 * @param string $post_title Default post title.
647 * @param WP_Post $post Post object.
649 $post->post_title = apply_filters( 'default_title', $post_title, $post );
652 * Filters the default post excerpt initially used in the "Write Post" form.
656 * @param string $post_excerpt Default post excerpt.
657 * @param WP_Post $post Post object.
659 $post->post_excerpt = apply_filters( 'default_excerpt', $post_excerpt, $post );
665 * Determine if a post exists based on title, content, and date
669 * @global wpdb $wpdb WordPress database abstraction object.
671 * @param string $title Post title
672 * @param string $content Optional post content
673 * @param string $date Optional post date
674 * @return int Post ID if post exists, 0 otherwise.
676 function post_exists($title, $content = '', $date = '') {
679 $post_title = wp_unslash( sanitize_post_field( 'post_title', $title, 0, 'db' ) );
680 $post_content = wp_unslash( sanitize_post_field( 'post_content', $content, 0, 'db' ) );
681 $post_date = wp_unslash( sanitize_post_field( 'post_date', $date, 0, 'db' ) );
683 $query = "SELECT ID FROM $wpdb->posts WHERE 1=1";
686 if ( !empty ( $date ) ) {
687 $query .= ' AND post_date = %s';
688 $args[] = $post_date;
691 if ( !empty ( $title ) ) {
692 $query .= ' AND post_title = %s';
693 $args[] = $post_title;
696 if ( !empty ( $content ) ) {
697 $query .= ' AND post_content = %s';
698 $args[] = $post_content;
701 if ( !empty ( $args ) )
702 return (int) $wpdb->get_var( $wpdb->prepare($query, $args) );
708 * Creates a new post from the "Write Post" form using $_POST information.
712 * @global WP_User $current_user
714 * @return int|WP_Error
716 function wp_write_post() {
717 if ( isset($_POST['post_type']) )
718 $ptype = get_post_type_object($_POST['post_type']);
720 $ptype = get_post_type_object('post');
722 if ( !current_user_can( $ptype->cap->edit_posts ) ) {
723 if ( 'page' == $ptype->name )
724 return new WP_Error( 'edit_pages', __( 'Sorry, you are not allowed to create pages on this site.' ) );
726 return new WP_Error( 'edit_posts', __( 'Sorry, you are not allowed to create posts or drafts on this site.' ) );
729 $_POST['post_mime_type'] = '';
731 // Clear out any data in internal vars.
732 unset( $_POST['filter'] );
734 // Edit don't write if we have a post id.
735 if ( isset( $_POST['post_ID'] ) )
738 if ( isset($_POST['visibility']) ) {
739 switch ( $_POST['visibility'] ) {
741 $_POST['post_password'] = '';
744 unset( $_POST['sticky'] );
747 $_POST['post_status'] = 'private';
748 $_POST['post_password'] = '';
749 unset( $_POST['sticky'] );
754 $translated = _wp_translate_postdata( false );
755 if ( is_wp_error($translated) )
759 $post_ID = wp_insert_post( $_POST );
760 if ( is_wp_error( $post_ID ) )
763 if ( empty($post_ID) )
766 add_meta( $post_ID );
768 add_post_meta( $post_ID, '_edit_last', $GLOBALS['current_user']->ID );
770 // Now that we have an ID we can fix any attachment anchor hrefs
771 _fix_attachment_links( $post_ID );
773 wp_set_post_lock( $post_ID );
779 * Calls wp_write_post() and handles the errors.
785 function write_post() {
786 $result = wp_write_post();
787 if ( is_wp_error( $result ) )
788 wp_die( $result->get_error_message() );
798 * Add post meta data defined in $_POST superglobal for post with given ID.
802 * @param int $post_ID
805 function add_meta( $post_ID ) {
806 $post_ID = (int) $post_ID;
808 $metakeyselect = isset($_POST['metakeyselect']) ? wp_unslash( trim( $_POST['metakeyselect'] ) ) : '';
809 $metakeyinput = isset($_POST['metakeyinput']) ? wp_unslash( trim( $_POST['metakeyinput'] ) ) : '';
810 $metavalue = isset($_POST['metavalue']) ? $_POST['metavalue'] : '';
811 if ( is_string( $metavalue ) )
812 $metavalue = trim( $metavalue );
814 if ( ('0' === $metavalue || ! empty ( $metavalue ) ) && ( ( ( '#NONE#' != $metakeyselect ) && !empty ( $metakeyselect) ) || !empty ( $metakeyinput ) ) ) {
816 * We have a key/value pair. If both the select and the input
817 * for the key have data, the input takes precedence.
819 if ( '#NONE#' != $metakeyselect )
820 $metakey = $metakeyselect;
823 $metakey = $metakeyinput; // default
825 if ( is_protected_meta( $metakey, 'post' ) || ! current_user_can( 'add_post_meta', $post_ID, $metakey ) )
828 $metakey = wp_slash( $metakey );
830 return add_post_meta( $post_ID, $metakey, $metavalue );
837 * Delete post meta data by meta ID.
844 function delete_meta( $mid ) {
845 return delete_metadata_by_mid( 'post' , $mid );
849 * Get a list of previously defined keys.
853 * @global wpdb $wpdb WordPress database abstraction object.
857 function get_meta_keys() {
860 $keys = $wpdb->get_col( "
864 ORDER BY meta_key" );
870 * Get post meta data by meta ID.
875 * @return object|bool
877 function get_post_meta_by_id( $mid ) {
878 return get_metadata_by_mid( 'post', $mid );
882 * Get meta data for the given post ID.
886 * @global wpdb $wpdb WordPress database abstraction object.
891 function has_meta( $postid ) {
894 return $wpdb->get_results( $wpdb->prepare("SELECT meta_key, meta_value, meta_id, post_id
895 FROM $wpdb->postmeta WHERE post_id = %d
896 ORDER BY meta_key,meta_id", $postid), ARRAY_A );
900 * Update post meta data by meta ID.
904 * @param int $meta_id
905 * @param string $meta_key Expect Slashed
906 * @param string $meta_value Expect Slashed
909 function update_meta( $meta_id, $meta_key, $meta_value ) {
910 $meta_key = wp_unslash( $meta_key );
911 $meta_value = wp_unslash( $meta_value );
913 return update_metadata_by_mid( 'post', $meta_id, $meta_value, $meta_key );
921 * Replace hrefs of attachment anchors with up-to-date permalinks.
926 * @param int|object $post Post ID or post object.
927 * @return void|int|WP_Error Void if nothing fixed. 0 or WP_Error on update failure. The post ID on update success.
929 function _fix_attachment_links( $post ) {
930 $post = get_post( $post, ARRAY_A );
931 $content = $post['post_content'];
933 // Don't run if no pretty permalinks or post is not published, scheduled, or privately published.
934 if ( ! get_option( 'permalink_structure' ) || ! in_array( $post['post_status'], array( 'publish', 'future', 'private' ) ) )
937 // Short if there aren't any links or no '?attachment_id=' strings (strpos cannot be zero)
938 if ( !strpos($content, '?attachment_id=') || !preg_match_all( '/<a ([^>]+)>[\s\S]+?<\/a>/', $content, $link_matches ) )
941 $site_url = get_bloginfo('url');
942 $site_url = substr( $site_url, (int) strpos($site_url, '://') ); // remove the http(s)
945 foreach ( $link_matches[1] as $key => $value ) {
946 if ( !strpos($value, '?attachment_id=') || !strpos($value, 'wp-att-')
947 || !preg_match( '/href=(["\'])[^"\']*\?attachment_id=(\d+)[^"\']*\\1/', $value, $url_match )
948 || !preg_match( '/rel=["\'][^"\']*wp-att-(\d+)/', $value, $rel_match ) )
951 $quote = $url_match[1]; // the quote (single or double)
952 $url_id = (int) $url_match[2];
953 $rel_id = (int) $rel_match[1];
955 if ( !$url_id || !$rel_id || $url_id != $rel_id || strpos($url_match[0], $site_url) === false )
958 $link = $link_matches[0][$key];
959 $replace = str_replace( $url_match[0], 'href=' . $quote . get_attachment_link( $url_id ) . $quote, $link );
961 $content = str_replace( $link, $replace, $content );
965 $post['post_content'] = $content;
966 // Escape data pulled from DB.
967 $post = add_magic_quotes($post);
969 return wp_update_post($post);
974 * Get all the possible statuses for a post_type
978 * @param string $type The post_type you want the statuses for
979 * @return array As array of all the statuses for the supplied post type
981 function get_available_post_statuses($type = 'post') {
982 $stati = wp_count_posts($type);
984 return array_keys(get_object_vars($stati));
988 * Run the wp query to fetch the posts for listing on the edit posts page
992 * @param array|bool $q Array of query variables to use to build the query or false to use $_GET superglobal.
995 function wp_edit_posts_query( $q = false ) {
998 $q['m'] = isset($q['m']) ? (int) $q['m'] : 0;
999 $q['cat'] = isset($q['cat']) ? (int) $q['cat'] : 0;
1000 $post_stati = get_post_stati();
1002 if ( isset($q['post_type']) && in_array( $q['post_type'], get_post_types() ) )
1003 $post_type = $q['post_type'];
1005 $post_type = 'post';
1007 $avail_post_stati = get_available_post_statuses($post_type);
1009 if ( isset($q['post_status']) && in_array( $q['post_status'], $post_stati ) ) {
1010 $post_status = $q['post_status'];
1014 if ( isset( $q['orderby'] ) ) {
1015 $orderby = $q['orderby'];
1016 } elseif ( isset( $q['post_status'] ) && in_array( $q['post_status'], array( 'pending', 'draft' ) ) ) {
1017 $orderby = 'modified';
1020 if ( isset( $q['order'] ) ) {
1021 $order = $q['order'];
1022 } elseif ( isset( $q['post_status'] ) && 'pending' == $q['post_status'] ) {
1026 $per_page = "edit_{$post_type}_per_page";
1027 $posts_per_page = (int) get_user_option( $per_page );
1028 if ( empty( $posts_per_page ) || $posts_per_page < 1 )
1029 $posts_per_page = 20;
1032 * Filters the number of items per page to show for a specific 'per_page' type.
1034 * The dynamic portion of the hook name, `$post_type`, refers to the post type.
1036 * Some examples of filter hooks generated here include: 'edit_attachment_per_page',
1037 * 'edit_post_per_page', 'edit_page_per_page', etc.
1041 * @param int $posts_per_page Number of posts to display per page for the given post
1044 $posts_per_page = apply_filters( "edit_{$post_type}_per_page", $posts_per_page );
1047 * Filters the number of posts displayed per page when specifically listing "posts".
1051 * @param int $posts_per_page Number of posts to be displayed. Default 20.
1052 * @param string $post_type The post type.
1054 $posts_per_page = apply_filters( 'edit_posts_per_page', $posts_per_page, $post_type );
1056 $query = compact('post_type', 'post_status', 'perm', 'order', 'orderby', 'posts_per_page');
1058 // Hierarchical types require special args.
1059 if ( is_post_type_hierarchical( $post_type ) && !isset($orderby) ) {
1060 $query['orderby'] = 'menu_order title';
1061 $query['order'] = 'asc';
1062 $query['posts_per_page'] = -1;
1063 $query['posts_per_archive_page'] = -1;
1064 $query['fields'] = 'id=>parent';
1067 if ( ! empty( $q['show_sticky'] ) )
1068 $query['post__in'] = (array) get_option( 'sticky_posts' );
1072 return $avail_post_stati;
1076 * Get all available post MIME types for a given post type.
1080 * @global wpdb $wpdb WordPress database abstraction object.
1082 * @param string $type
1085 function get_available_post_mime_types($type = 'attachment') {
1088 $types = $wpdb->get_col($wpdb->prepare("SELECT DISTINCT post_mime_type FROM $wpdb->posts WHERE post_type = %s", $type));
1093 * Get the query variables for the current attachments request.
1097 * @param array|false $q Optional. Array of query variables to use to build the query or false
1098 * to use $_GET superglobal. Default false.
1099 * @return array The parsed query vars.
1101 function wp_edit_attachments_query_vars( $q = false ) {
1102 if ( false === $q ) {
1105 $q['m'] = isset( $q['m'] ) ? (int) $q['m'] : 0;
1106 $q['cat'] = isset( $q['cat'] ) ? (int) $q['cat'] : 0;
1107 $q['post_type'] = 'attachment';
1108 $post_type = get_post_type_object( 'attachment' );
1109 $states = 'inherit';
1110 if ( current_user_can( $post_type->cap->read_private_posts ) ) {
1111 $states .= ',private';
1114 $q['post_status'] = isset( $q['status'] ) && 'trash' == $q['status'] ? 'trash' : $states;
1115 $q['post_status'] = isset( $q['attachment-filter'] ) && 'trash' == $q['attachment-filter'] ? 'trash' : $states;
1117 $media_per_page = (int) get_user_option( 'upload_per_page' );
1118 if ( empty( $media_per_page ) || $media_per_page < 1 ) {
1119 $media_per_page = 20;
1123 * Filters the number of items to list per page when listing media items.
1127 * @param int $media_per_page Number of media to list. Default 20.
1129 $q['posts_per_page'] = apply_filters( 'upload_per_page', $media_per_page );
1131 $post_mime_types = get_post_mime_types();
1132 if ( isset($q['post_mime_type']) && !array_intersect( (array) $q['post_mime_type'], array_keys($post_mime_types) ) ) {
1133 unset($q['post_mime_type']);
1136 foreach ( array_keys( $post_mime_types ) as $type ) {
1137 if ( isset( $q['attachment-filter'] ) && "post_mime_type:$type" == $q['attachment-filter'] ) {
1138 $q['post_mime_type'] = $type;
1143 if ( isset( $q['detached'] ) || ( isset( $q['attachment-filter'] ) && 'detached' == $q['attachment-filter'] ) ) {
1144 $q['post_parent'] = 0;
1151 * Executes a query for attachments. An array of WP_Query arguments
1152 * can be passed in, which will override the arguments set by this function.
1156 * @param array|false $q Array of query variables to use to build the query or false to use $_GET superglobal.
1159 function wp_edit_attachments_query( $q = false ) {
1160 wp( wp_edit_attachments_query_vars( $q ) );
1162 $post_mime_types = get_post_mime_types();
1163 $avail_post_mime_types = get_available_post_mime_types( 'attachment' );
1165 return array( $post_mime_types, $avail_post_mime_types );
1169 * Returns the list of classes to be used by a meta box.
1174 * @param string $page
1177 function postbox_classes( $id, $page ) {
1178 if ( isset( $_GET['edit'] ) && $_GET['edit'] == $id ) {
1179 $classes = array( '' );
1180 } elseif ( $closed = get_user_option('closedpostboxes_'.$page ) ) {
1181 if ( !is_array( $closed ) ) {
1182 $classes = array( '' );
1184 $classes = in_array( $id, $closed ) ? array( 'closed' ) : array( '' );
1187 $classes = array( '' );
1191 * Filters the postbox classes for a specific screen and screen ID combo.
1193 * The dynamic portions of the hook name, `$page` and `$id`, refer to
1194 * the screen and screen ID, respectively.
1198 * @param array $classes An array of postbox classes.
1200 $classes = apply_filters( "postbox_classes_{$page}_{$id}", $classes );
1201 return implode( ' ', $classes );
1205 * Get a sample permalink based off of the post name.
1209 * @param int $id Post ID or post object.
1210 * @param string $title Optional. Title. Default null.
1211 * @param string $name Optional. Name. Default null.
1212 * @return array Array with two entries of type string.
1214 function get_sample_permalink($id, $title = null, $name = null) {
1215 $post = get_post( $id );
1217 return array( '', '' );
1219 $ptype = get_post_type_object($post->post_type);
1221 $original_status = $post->post_status;
1222 $original_date = $post->post_date;
1223 $original_name = $post->post_name;
1225 // Hack: get_permalink() would return ugly permalink for drafts, so we will fake that our post is published.
1226 if ( in_array( $post->post_status, array( 'draft', 'pending', 'future' ) ) ) {
1227 $post->post_status = 'publish';
1228 $post->post_name = sanitize_title($post->post_name ? $post->post_name : $post->post_title, $post->ID);
1231 // If the user wants to set a new name -- override the current one
1232 // Note: if empty name is supplied -- use the title instead, see #6072
1233 if ( !is_null($name) )
1234 $post->post_name = sanitize_title($name ? $name : $title, $post->ID);
1236 $post->post_name = wp_unique_post_slug($post->post_name, $post->ID, $post->post_status, $post->post_type, $post->post_parent);
1238 $post->filter = 'sample';
1240 $permalink = get_permalink($post, true);
1242 // Replace custom post_type Token with generic pagename token for ease of use.
1243 $permalink = str_replace("%$post->post_type%", '%pagename%', $permalink);
1245 // Handle page hierarchy
1246 if ( $ptype->hierarchical ) {
1247 $uri = get_page_uri($post);
1249 $uri = untrailingslashit($uri);
1250 $uri = strrev( stristr( strrev( $uri ), '/' ) );
1251 $uri = untrailingslashit($uri);
1254 /** This filter is documented in wp-admin/edit-tag-form.php */
1255 $uri = apply_filters( 'editable_slug', $uri, $post );
1258 $permalink = str_replace('%pagename%', "{$uri}%pagename%", $permalink);
1261 /** This filter is documented in wp-admin/edit-tag-form.php */
1262 $permalink = array( $permalink, apply_filters( 'editable_slug', $post->post_name, $post ) );
1263 $post->post_status = $original_status;
1264 $post->post_date = $original_date;
1265 $post->post_name = $original_name;
1266 unset($post->filter);
1269 * Filters the sample permalink.
1273 * @param string $permalink Sample permalink.
1274 * @param int $post_id Post ID.
1275 * @param string $title Post title.
1276 * @param string $name Post name (slug).
1277 * @param WP_Post $post Post object.
1279 return apply_filters( 'get_sample_permalink', $permalink, $post->ID, $title, $name, $post );
1283 * Returns the HTML of the sample permalink slug editor.
1287 * @param int $id Post ID or post object.
1288 * @param string $new_title Optional. New title. Default null.
1289 * @param string $new_slug Optional. New slug. Default null.
1290 * @return string The HTML of the sample permalink slug editor.
1292 function get_sample_permalink_html( $id, $new_title = null, $new_slug = null ) {
1293 $post = get_post( $id );
1297 list($permalink, $post_name) = get_sample_permalink($post->ID, $new_title, $new_slug);
1300 $preview_target = '';
1302 if ( current_user_can( 'read_post', $post->ID ) ) {
1303 if ( 'draft' === $post->post_status ) {
1304 $view_link = get_preview_post_link( $post );
1305 $preview_target = " target='wp-preview-{$post->ID}'";
1307 if ( 'publish' === $post->post_status || 'attachment' === $post->post_type ) {
1308 $view_link = get_permalink( $post );
1310 // Allow non-published (private, future) to be viewed at a pretty permalink.
1311 $view_link = str_replace( array( '%pagename%', '%postname%' ), $post->post_name, $permalink );
1316 // Permalinks without a post/page name placeholder don't have anything to edit
1317 if ( false === strpos( $permalink, '%postname%' ) && false === strpos( $permalink, '%pagename%' ) ) {
1318 $return = '<strong>' . __( 'Permalink:' ) . "</strong>\n";
1320 if ( false !== $view_link ) {
1321 $display_link = urldecode( $view_link );
1322 $return .= '<a id="sample-permalink" href="' . esc_url( $view_link ) . '"' . $preview_target . '>' . esc_html( $display_link ) . "</a>\n";
1324 $return .= '<span id="sample-permalink">' . $permalink . "</span>\n";
1327 // Encourage a pretty permalink setting
1328 if ( '' == get_option( 'permalink_structure' ) && current_user_can( 'manage_options' ) && !( 'page' == get_option('show_on_front') && $id == get_option('page_on_front') ) ) {
1329 $return .= '<span id="change-permalinks"><a href="options-permalink.php" class="button button-small" target="_blank">' . __('Change Permalinks') . "</a></span>\n";
1332 if ( mb_strlen( $post_name ) > 34 ) {
1333 $post_name_abridged = mb_substr( $post_name, 0, 16 ) . '…' . mb_substr( $post_name, -16 );
1335 $post_name_abridged = $post_name;
1338 $post_name_html = '<span id="editable-post-name">' . esc_html( $post_name_abridged ) . '</span>';
1339 $display_link = str_replace( array( '%pagename%', '%postname%' ), $post_name_html, esc_html( urldecode( $permalink ) ) );
1341 $return = '<strong>' . __( 'Permalink:' ) . "</strong>\n";
1342 $return .= '<span id="sample-permalink"><a href="' . esc_url( $view_link ) . '"' . $preview_target . '>' . $display_link . "</a></span>\n";
1343 $return .= '‎'; // Fix bi-directional text display defect in RTL languages.
1344 $return .= '<span id="edit-slug-buttons"><button type="button" class="edit-slug button button-small hide-if-no-js" aria-label="' . __( 'Edit permalink' ) . '">' . __( 'Edit' ) . "</button></span>\n";
1345 $return .= '<span id="editable-post-name-full">' . esc_html( $post_name ) . "</span>\n";
1349 * Filters the sample permalink HTML markup.
1352 * @since 4.4.0 Added `$post` parameter.
1354 * @param string $return Sample permalink HTML markup.
1355 * @param int $post_id Post ID.
1356 * @param string $new_title New sample permalink title.
1357 * @param string $new_slug New sample permalink slug.
1358 * @param WP_Post $post Post object.
1360 $return = apply_filters( 'get_sample_permalink_html', $return, $post->ID, $new_title, $new_slug, $post );
1366 * Output HTML for the post thumbnail meta-box.
1370 * @global array $_wp_additional_image_sizes
1372 * @param int $thumbnail_id ID of the attachment used for thumbnail
1373 * @param mixed $post The post ID or object associated with the thumbnail, defaults to global $post.
1374 * @return string html
1376 function _wp_post_thumbnail_html( $thumbnail_id = null, $post = null ) {
1377 global $_wp_additional_image_sizes;
1379 $post = get_post( $post );
1380 $post_type_object = get_post_type_object( $post->post_type );
1381 $set_thumbnail_link = '<p class="hide-if-no-js"><a href="%s" id="set-post-thumbnail"%s class="thickbox">%s</a></p>';
1382 $upload_iframe_src = get_upload_iframe_src( 'image', $post->ID );
1384 $content = sprintf( $set_thumbnail_link,
1385 esc_url( $upload_iframe_src ),
1386 '', // Empty when there's no featured image set, `aria-describedby` attribute otherwise.
1387 esc_html( $post_type_object->labels->set_featured_image )
1390 if ( $thumbnail_id && get_post( $thumbnail_id ) ) {
1391 $size = isset( $_wp_additional_image_sizes['post-thumbnail'] ) ? 'post-thumbnail' : array( 266, 266 );
1394 * Filters the size used to display the post thumbnail image in the 'Featured Image' meta box.
1396 * Note: When a theme adds 'post-thumbnail' support, a special 'post-thumbnail'
1397 * image size is registered, which differs from the 'thumbnail' image size
1398 * managed via the Settings > Media screen. See the `$size` parameter description
1399 * for more information on default values.
1403 * @param string|array $size Post thumbnail image size to display in the meta box. Accepts any valid
1404 * image size, or an array of width and height values in pixels (in that order).
1405 * If the 'post-thumbnail' size is set, default is 'post-thumbnail'. Otherwise,
1406 * default is an array with 266 as both the height and width values.
1407 * @param int $thumbnail_id Post thumbnail attachment ID.
1408 * @param WP_Post $post The post object associated with the thumbnail.
1410 $size = apply_filters( 'admin_post_thumbnail_size', $size, $thumbnail_id, $post );
1412 $thumbnail_html = wp_get_attachment_image( $thumbnail_id, $size );
1414 if ( ! empty( $thumbnail_html ) ) {
1415 $content = sprintf( $set_thumbnail_link,
1416 esc_url( $upload_iframe_src ),
1417 ' aria-describedby="set-post-thumbnail-desc"',
1420 $content .= '<p class="hide-if-no-js howto" id="set-post-thumbnail-desc">' . __( 'Click the image to edit or update' ) . '</p>';
1421 $content .= '<p class="hide-if-no-js"><a href="#" id="remove-post-thumbnail">' . esc_html( $post_type_object->labels->remove_featured_image ) . '</a></p>';
1425 $content .= '<input type="hidden" id="_thumbnail_id" name="_thumbnail_id" value="' . esc_attr( $thumbnail_id ? $thumbnail_id : '-1' ) . '" />';
1428 * Filters the admin post thumbnail HTML markup to return.
1431 * @since 3.5.0 Added the `$post_id` parameter.
1432 * @since 4.6.0 Added the `$thumbnail_id` parameter.
1434 * @param string $content Admin post thumbnail HTML markup.
1435 * @param int $post_id Post ID.
1436 * @param int $thumbnail_id Thumbnail ID.
1438 return apply_filters( 'admin_post_thumbnail_html', $content, $post->ID, $thumbnail_id );
1442 * Check to see if the post is currently being edited by another user.
1446 * @param int $post_id ID of the post to check for editing
1447 * @return integer False: not locked or locked by current user. Int: user ID of user with lock.
1449 function wp_check_post_lock( $post_id ) {
1450 if ( !$post = get_post( $post_id ) )
1453 if ( !$lock = get_post_meta( $post->ID, '_edit_lock', true ) )
1456 $lock = explode( ':', $lock );
1458 $user = isset( $lock[1] ) ? $lock[1] : get_post_meta( $post->ID, '_edit_last', true );
1460 /** This filter is documented in wp-admin/includes/ajax-actions.php */
1461 $time_window = apply_filters( 'wp_check_post_lock_window', 150 );
1463 if ( $time && $time > time() - $time_window && $user != get_current_user_id() )
1469 * Mark the post as currently being edited by the current user
1473 * @param int $post_id ID of the post to being edited
1474 * @return bool|array Returns false if the post doesn't exist of there is no current user, or
1475 * an array of the lock time and the user ID.
1477 function wp_set_post_lock( $post_id ) {
1478 if ( !$post = get_post( $post_id ) )
1480 if ( 0 == ($user_id = get_current_user_id()) )
1484 $lock = "$now:$user_id";
1486 update_post_meta( $post->ID, '_edit_lock', $lock );
1487 return array( $now, $user_id );
1491 * Outputs the HTML for the notice to say that someone else is editing or has taken over editing of this post.
1496 function _admin_notice_post_locked() {
1497 if ( ! $post = get_post() )
1501 if ( $user_id = wp_check_post_lock( $post->ID ) )
1502 $user = get_userdata( $user_id );
1507 * Filters whether to show the post locked dialog.
1509 * Returning a falsey value to the filter will short-circuit displaying the dialog.
1513 * @param bool $display Whether to display the dialog. Default true.
1514 * @param WP_User|bool $user WP_User object on success, false otherwise.
1516 if ( ! apply_filters( 'show_post_locked_dialog', true, $post, $user ) )
1524 if ( $locked && ( $sendback = wp_get_referer() ) &&
1525 false === strpos( $sendback, 'post.php' ) && false === strpos( $sendback, 'post-new.php' ) ) {
1527 $sendback_text = __('Go back');
1529 $sendback = admin_url( 'edit.php' );
1531 if ( 'post' != $post->post_type )
1532 $sendback = add_query_arg( 'post_type', $post->post_type, $sendback );
1534 $sendback_text = get_post_type_object( $post->post_type )->labels->all_items;
1537 $hidden = $locked ? '' : ' hidden';
1540 <div id="post-lock-dialog" class="notification-dialog-wrap<?php echo $hidden; ?>">
1541 <div class="notification-dialog-background"></div>
1542 <div class="notification-dialog">
1546 $query_args = array();
1547 if ( get_post_type_object( $post->post_type )->public ) {
1548 if ( 'publish' == $post->post_status || $user->ID != $post->post_author ) {
1549 // Latest content is in autosave
1550 $nonce = wp_create_nonce( 'post_preview_' . $post->ID );
1551 $query_args['preview_id'] = $post->ID;
1552 $query_args['preview_nonce'] = $nonce;
1556 $preview_link = get_preview_post_link( $post->ID, $query_args );
1559 * Filters whether to allow the post lock to be overridden.
1561 * Returning a falsey value to the filter will disable the ability
1562 * to override the post lock.
1566 * @param bool $override Whether to allow overriding post locks. Default true.
1567 * @param WP_Post $post Post object.
1568 * @param WP_User $user User object.
1570 $override = apply_filters( 'override_post_lock', true, $post, $user );
1571 $tab_last = $override ? '' : ' wp-tab-last';
1574 <div class="post-locked-message">
1575 <div class="post-locked-avatar"><?php echo get_avatar( $user->ID, 64 ); ?></div>
1576 <p class="currently-editing wp-tab-first" tabindex="0">
1578 _e( 'This content is currently locked.' );
1580 printf( ' ' . __( 'If you take over, %s will be blocked from continuing to edit.' ), esc_html( $user->display_name ) );
1585 * Fires inside the post locked dialog before the buttons are displayed.
1589 * @param WP_Post $post Post object.
1591 do_action( 'post_locked_dialog', $post );
1594 <a class="button" href="<?php echo esc_url( $sendback ); ?>"><?php echo $sendback_text; ?></a>
1595 <?php if ( $preview_link ) { ?>
1596 <a class="button<?php echo $tab_last; ?>" href="<?php echo esc_url( $preview_link ); ?>"><?php _e('Preview'); ?></a>
1600 // Allow plugins to prevent some users overriding the post lock
1603 <a class="button button-primary wp-tab-last" href="<?php echo esc_url( add_query_arg( 'get-post-lock', '1', wp_nonce_url( get_edit_post_link( $post->ID, 'url' ), 'lock-post_' . $post->ID ) ) ); ?>"><?php _e('Take over'); ?></a>
1613 <div class="post-taken-over">
1614 <div class="post-locked-avatar"></div>
1615 <p class="wp-tab-first" tabindex="0">
1616 <span class="currently-editing"></span><br />
1617 <span class="locked-saving hidden"><img src="<?php echo esc_url( admin_url( 'images/spinner-2x.gif' ) ); ?>" width="16" height="16" alt="" /> <?php _e( 'Saving revision…' ); ?></span>
1618 <span class="locked-saved hidden"><?php _e('Your latest changes were saved as a revision.'); ?></span>
1622 * Fires inside the dialog displayed when a user has lost the post lock.
1626 * @param WP_Post $post Post object.
1628 do_action( 'post_lock_lost_dialog', $post );
1630 <p><a class="button button-primary wp-tab-last" href="<?php echo esc_url( $sendback ); ?>"><?php echo $sendback_text; ?></a></p>
1642 * Creates autosave data for the specified post from $_POST data.
1644 * @package WordPress
1645 * @subpackage Post_Revisions
1648 * @param mixed $post_data Associative array containing the post data or int post ID.
1649 * @return mixed The autosave revision ID. WP_Error or 0 on error.
1651 function wp_create_post_autosave( $post_data ) {
1652 if ( is_numeric( $post_data ) ) {
1653 $post_id = $post_data;
1654 $post_data = $_POST;
1656 $post_id = (int) $post_data['post_ID'];
1659 $post_data = _wp_translate_postdata( true, $post_data );
1660 if ( is_wp_error( $post_data ) )
1663 $post_author = get_current_user_id();
1665 // Store one autosave per author. If there is already an autosave, overwrite it.
1666 if ( $old_autosave = wp_get_post_autosave( $post_id, $post_author ) ) {
1667 $new_autosave = _wp_post_revision_data( $post_data, true );
1668 $new_autosave['ID'] = $old_autosave->ID;
1669 $new_autosave['post_author'] = $post_author;
1671 // If the new autosave has the same content as the post, delete the autosave.
1672 $post = get_post( $post_id );
1673 $autosave_is_different = false;
1674 foreach ( array_intersect( array_keys( $new_autosave ), array_keys( _wp_post_revision_fields( $post ) ) ) as $field ) {
1675 if ( normalize_whitespace( $new_autosave[ $field ] ) != normalize_whitespace( $post->$field ) ) {
1676 $autosave_is_different = true;
1681 if ( ! $autosave_is_different ) {
1682 wp_delete_post_revision( $old_autosave->ID );
1687 * Fires before an autosave is stored.
1691 * @param array $new_autosave Post array - the autosave that is about to be saved.
1693 do_action( 'wp_creating_autosave', $new_autosave );
1695 return wp_update_post( $new_autosave );
1698 // _wp_put_post_revision() expects unescaped.
1699 $post_data = wp_unslash( $post_data );
1701 // Otherwise create the new autosave as a special post revision
1702 return _wp_put_post_revision( $post_data, true );
1706 * Save draft or manually autosave for showing preview.
1708 * @package WordPress
1711 * @return str URL to redirect to show the preview
1713 function post_preview() {
1715 $post_ID = (int) $_POST['post_ID'];
1716 $_POST['ID'] = $post_ID;
1718 if ( ! $post = get_post( $post_ID ) ) {
1719 wp_die( __( 'Sorry, you are not allowed to edit this post.' ) );
1722 if ( ! current_user_can( 'edit_post', $post->ID ) ) {
1723 wp_die( __( 'Sorry, you are not allowed to edit this post.' ) );
1726 $is_autosave = false;
1728 if ( ! wp_check_post_lock( $post->ID ) && get_current_user_id() == $post->post_author && ( 'draft' == $post->post_status || 'auto-draft' == $post->post_status ) ) {
1729 $saved_post_id = edit_post();
1731 $is_autosave = true;
1733 if ( isset( $_POST['post_status'] ) && 'auto-draft' == $_POST['post_status'] )
1734 $_POST['post_status'] = 'draft';
1736 $saved_post_id = wp_create_post_autosave( $post->ID );
1739 if ( is_wp_error( $saved_post_id ) )
1740 wp_die( $saved_post_id->get_error_message() );
1742 $query_args = array();
1744 if ( $is_autosave && $saved_post_id ) {
1745 $query_args['preview_id'] = $post->ID;
1746 $query_args['preview_nonce'] = wp_create_nonce( 'post_preview_' . $post->ID );
1748 if ( isset( $_POST['post_format'] ) ) {
1749 $query_args['post_format'] = empty( $_POST['post_format'] ) ? 'standard' : sanitize_key( $_POST['post_format'] );
1752 if ( isset( $_POST['_thumbnail_id'] ) ) {
1753 $query_args['_thumbnail_id'] = ( intval( $_POST['_thumbnail_id'] ) <= 0 ) ? '-1' : intval( $_POST['_thumbnail_id'] );
1757 return get_preview_post_link( $post, $query_args );
1761 * Save a post submitted with XHR
1763 * Intended for use with heartbeat and autosave.js
1767 * @param array $post_data Associative array of the submitted post data.
1768 * @return mixed The value 0 or WP_Error on failure. The saved post ID on success.
1769 * The ID can be the draft post_id or the autosave revision post_id.
1771 function wp_autosave( $post_data ) {
1773 if ( ! defined( 'DOING_AUTOSAVE' ) )
1774 define( 'DOING_AUTOSAVE', true );
1776 $post_id = (int) $post_data['post_id'];
1777 $post_data['ID'] = $post_data['post_ID'] = $post_id;
1779 if ( false === wp_verify_nonce( $post_data['_wpnonce'], 'update-post_' . $post_id ) ) {
1780 return new WP_Error( 'invalid_nonce', __( 'Error while saving.' ) );
1783 $post = get_post( $post_id );
1785 if ( ! current_user_can( 'edit_post', $post->ID ) ) {
1786 return new WP_Error( 'edit_posts', __( 'Sorry, you are not allowed to edit this item.' ) );
1789 if ( 'auto-draft' == $post->post_status )
1790 $post_data['post_status'] = 'draft';
1792 if ( $post_data['post_type'] != 'page' && ! empty( $post_data['catslist'] ) )
1793 $post_data['post_category'] = explode( ',', $post_data['catslist'] );
1795 if ( ! wp_check_post_lock( $post->ID ) && get_current_user_id() == $post->post_author && ( 'auto-draft' == $post->post_status || 'draft' == $post->post_status ) ) {
1796 // Drafts and auto-drafts are just overwritten by autosave for the same user if the post is not locked
1797 return edit_post( wp_slash( $post_data ) );
1799 // Non drafts or other users drafts are not overwritten. The autosave is stored in a special post revision for each user.
1800 return wp_create_post_autosave( wp_slash( $post_data ) );
1805 * Redirect to previous page.
1807 * @param int $post_id Optional. Post ID.
1809 function redirect_post($post_id = '') {
1810 if ( isset($_POST['save']) || isset($_POST['publish']) ) {
1811 $status = get_post_status( $post_id );
1813 if ( isset( $_POST['publish'] ) ) {
1814 switch ( $status ) {
1825 $message = 'draft' == $status ? 10 : 1;
1828 $location = add_query_arg( 'message', $message, get_edit_post_link( $post_id, 'url' ) );
1829 } elseif ( isset($_POST['addmeta']) && $_POST['addmeta'] ) {
1830 $location = add_query_arg( 'message', 2, wp_get_referer() );
1831 $location = explode('#', $location);
1832 $location = $location[0] . '#postcustom';
1833 } elseif ( isset($_POST['deletemeta']) && $_POST['deletemeta'] ) {
1834 $location = add_query_arg( 'message', 3, wp_get_referer() );
1835 $location = explode('#', $location);
1836 $location = $location[0] . '#postcustom';
1838 $location = add_query_arg( 'message', 4, get_edit_post_link( $post_id, 'url' ) );
1842 * Filters the post redirect destination URL.
1846 * @param string $location The destination URL.
1847 * @param int $post_id The post ID.
1849 wp_redirect( apply_filters( 'redirect_post_location', $location, $post_id ) );