simple-page-ordering
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localization
12 years ago
readme.txt
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simple-page-ordering.css
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simple-page-ordering.dev.js
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simple-page-ordering.js
12 years ago
simple-page-ordering.php
12 years ago
simple-page-ordering.php
287 lines
| 1 | <?php |
| 2 | /** |
| 3 | Plugin Name: Simple Page Ordering |
| 4 | Plugin URI: http://10up.com/plugins/simple-page-ordering-wordpress/ |
| 5 | Description: Order your pages and hierarchical post types using drag and drop on the built in page list. For further instructions, open the "Help" tab on the Pages screen. |
| 6 | Version: 2.2 |
| 7 | Author: Jake Goldman, 10up |
| 8 | Author URI: http://10up.com |
| 9 | License: GPLv2 or later |
| 10 | */ |
| 11 | |
| 12 | if ( ! class_exists( 'Simple_Page_Ordering' ) ) : |
| 13 | |
| 14 | class Simple_Page_Ordering { |
| 15 | |
| 16 | /** |
| 17 | * Handles initializing this class and returning the singleton instance after it's been cached. |
| 18 | * |
| 19 | * @return null|Simple_page_Ordering |
| 20 | */ |
| 21 | public static function get_instance() { |
| 22 | // Store the instance locally to avoid private static replication |
| 23 | static $instance = null; |
| 24 | |
| 25 | if ( null === $instance ) { |
| 26 | $instance = new self(); |
| 27 | self::_add_actions(); |
| 28 | } |
| 29 | |
| 30 | return $instance; |
| 31 | } |
| 32 | |
| 33 | /** |
| 34 | * An empty constructor |
| 35 | */ |
| 36 | public function __construct() { /* Purposely do nothing here */ } |
| 37 | |
| 38 | /** |
| 39 | * Handles registering hooks that initialize this plugin. |
| 40 | */ |
| 41 | public static function _add_actions() { |
| 42 | add_action( 'load-edit.php', array( __CLASS__, 'load_edit_screen' ) ); |
| 43 | add_action( 'wp_ajax_simple_page_ordering', array( __CLASS__, 'ajax_simple_page_ordering' ) ); |
| 44 | } |
| 45 | |
| 46 | /** |
| 47 | * Load up page ordering scripts for the edit screen |
| 48 | */ |
| 49 | public static function load_edit_screen() { |
| 50 | $screen = get_current_screen(); |
| 51 | $post_type = $screen->post_type; |
| 52 | |
| 53 | // is post type sortable? |
| 54 | $sortable = ( post_type_supports( $post_type, 'page-attributes' ) || is_post_type_hierarchical( $post_type ) ); // check permission |
| 55 | if ( ! $sortable = apply_filters( 'simple_page_ordering_is_sortable', $sortable, $post_type ) ) { |
| 56 | return; |
| 57 | } |
| 58 | |
| 59 | // does user have the right to manage these post objects? |
| 60 | if ( ! self::check_edit_others_caps( $post_type ) ) { |
| 61 | return; |
| 62 | } |
| 63 | |
| 64 | add_filter( 'views_' . $screen->id, array( __CLASS__, 'sort_by_order_link' ) ); // add view by menu order to views |
| 65 | add_action( 'wp', array( __CLASS__, 'wp' ) ); |
| 66 | add_action( 'admin_head', array( __CLASS__, 'admin_head' ) ); |
| 67 | } |
| 68 | |
| 69 | /** |
| 70 | * when we load up our posts query, if we're actually sorting by menu order, initialize sorting scripts |
| 71 | */ |
| 72 | public static function wp() { |
| 73 | if ( 0 === strpos( get_query_var('orderby'), 'menu_order' ) ) { |
| 74 | $script_name = ( defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ) ? 'simple-page-ordering.dev.js' : 'simple-page-ordering.js'; |
| 75 | wp_enqueue_script( 'simple-page-ordering', plugins_url( $script_name, __FILE__ ), array('jquery-ui-sortable'), '2.1', true ); |
| 76 | wp_enqueue_style( 'simple-page-ordering', plugins_url( 'simple-page-ordering.css', __FILE__ ) ); |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * Add page ordering help to the help tab |
| 82 | */ |
| 83 | public static function admin_head() { |
| 84 | $screen = get_current_screen(); |
| 85 | $screen->add_help_tab(array( |
| 86 | 'id' => 'simple_page_ordering_help_tab', |
| 87 | 'title' => 'Simple Page Ordering', |
| 88 | 'content' => '<p>' . __( 'To reposition an item, simply drag and drop the row by "clicking and holding" it anywhere (outside of the links and form controls) and moving it to its new position.', 'simple-page-ordering' ) . '</p>', |
| 89 | )); |
| 90 | } |
| 91 | |
| 92 | public static function ajax_simple_page_ordering() { |
| 93 | // check and make sure we have what we need |
| 94 | if ( empty( $_POST['id'] ) || ( !isset( $_POST['previd'] ) && !isset( $_POST['nextid'] ) ) ) { |
| 95 | die(-1); |
| 96 | } |
| 97 | |
| 98 | // real post? |
| 99 | if ( ! $post = get_post( $_POST['id'] ) ) { |
| 100 | die(-1); |
| 101 | } |
| 102 | |
| 103 | // does user have the right to manage these post objects? |
| 104 | if ( ! self::check_edit_others_caps( $post->post_type ) ) { |
| 105 | die(-1); |
| 106 | } |
| 107 | |
| 108 | // badly written plug-in hooks for save post can break things |
| 109 | if ( ! defined( 'WP_DEBUG' ) || ! WP_DEBUG ) { |
| 110 | error_reporting( 0 ); |
| 111 | } |
| 112 | |
| 113 | $previd = empty( $_POST['previd'] ) ? false : (int) $_POST['previd']; |
| 114 | $nextid = empty( $_POST['nextid'] ) ? false : (int) $_POST['nextid']; |
| 115 | $start = empty( $_POST['start'] ) ? 1 : (int) $_POST['start']; |
| 116 | $excluded = empty( $_POST['excluded'] ) ? array( $post->ID ) : array_filter( (array) $_POST['excluded'], 'intval' ); |
| 117 | |
| 118 | $new_pos = array(); // store new positions for ajax |
| 119 | $return_data = new stdClass; |
| 120 | |
| 121 | do_action( 'simple_page_ordering_pre_order_posts', $post, $start ); |
| 122 | |
| 123 | // attempt to get the intended parent... if either sibling has a matching parent ID, use that |
| 124 | $parent_id = $post->post_parent; |
| 125 | $next_post_parent = $nextid ? wp_get_post_parent_id( $nextid ) : false; |
| 126 | if ( $previd == $next_post_parent ) { // if the preceding post is the parent of the next post, move it inside |
| 127 | $parent_id = $next_post_parent; |
| 128 | } elseif ( $next_post_parent !== $parent_id ) { // otherwise, if the next post's parent isn't the same as our parent, we need to study |
| 129 | $prev_post_parent = $previd ? wp_get_post_parent_id( $previd ) : false; |
| 130 | if ( $prev_post_parent !== $parent_id ) { // if the previous post is not our parent now, make it so! |
| 131 | $parent_id = ( $prev_post_parent !== false ) ? $prev_post_parent : $next_post_parent; |
| 132 | } |
| 133 | } |
| 134 | // if the next post's parent isn't our parent, it might as well be false (irrelevant to our query) |
| 135 | if ( $next_post_parent !== $parent_id ) { |
| 136 | $nextid = false; |
| 137 | } |
| 138 | |
| 139 | $max_sortable_posts = (int) apply_filters( 'simple_page_ordering_limit', 50 ); // should reliably be able to do about 50 at a time |
| 140 | if ( $max_sortable_posts < 5 ) { // don't be ridiculous! |
| 141 | $max_sortable_posts = 50; |
| 142 | } |
| 143 | |
| 144 | // we need to handle all post stati, except trash (in case of custom stati) |
| 145 | $post_stati = get_post_stati(array( |
| 146 | 'show_in_admin_all_list' => true, |
| 147 | )); |
| 148 | |
| 149 | $siblings = new WP_Query(array( |
| 150 | 'depth' => 1, |
| 151 | 'posts_per_page' => $max_sortable_posts, |
| 152 | 'post_type' => $post->post_type, |
| 153 | 'post_status' => $post_stati, |
| 154 | 'post_parent' => $parent_id, |
| 155 | 'orderby' => 'menu_order title', |
| 156 | 'order' => 'ASC', |
| 157 | 'post__not_in' => $excluded, |
| 158 | 'update_post_term_cache' => false, |
| 159 | 'update_post_meta_cache' => false, |
| 160 | 'suppress_filters' => true, |
| 161 | 'ignore_sticky_posts' => true, |
| 162 | )); // fetch all the siblings (relative ordering) |
| 163 | |
| 164 | // don't waste overhead of revisions on a menu order change (especially since they can't *all* be rolled back at once) |
| 165 | remove_action( 'pre_post_update', 'wp_save_post_revision' ); |
| 166 | |
| 167 | foreach( $siblings->posts as $sibling ) : |
| 168 | |
| 169 | // don't handle the actual post |
| 170 | if ( $sibling->ID === $post->ID ) { |
| 171 | continue; |
| 172 | } |
| 173 | |
| 174 | // if this is the post that comes after our repositioned post, set our repositioned post position and increment menu order |
| 175 | if ( $nextid === $sibling->ID ) { |
| 176 | wp_update_post(array( |
| 177 | 'ID' => $post->ID, |
| 178 | 'menu_order' => $start, |
| 179 | 'post_parent' => $parent_id, |
| 180 | )); |
| 181 | $ancestors = get_post_ancestors( $post->ID ); |
| 182 | $new_pos[$post->ID] = array( |
| 183 | 'menu_order' => $start, |
| 184 | 'post_parent' => $parent_id, |
| 185 | 'depth' => count( $ancestors ), |
| 186 | ); |
| 187 | $start++; |
| 188 | } |
| 189 | |
| 190 | // if repositioned post has been set, and new items are already in the right order, we can stop |
| 191 | if ( isset( $new_pos[$post->ID] ) && $sibling->menu_order >= $start ) { |
| 192 | $return_data->next = false; |
| 193 | break; |
| 194 | } |
| 195 | |
| 196 | // set the menu order of the current sibling and increment the menu order |
| 197 | if ( $sibling->menu_order != $start ) { |
| 198 | wp_update_post(array( |
| 199 | 'ID' => $sibling->ID, |
| 200 | 'menu_order' => $start, |
| 201 | )); |
| 202 | } |
| 203 | $new_pos[$sibling->ID] = $start; |
| 204 | $start++; |
| 205 | |
| 206 | if ( !$nextid && $previd == $sibling->ID ) { |
| 207 | wp_update_post(array( |
| 208 | 'ID' => $post->ID, |
| 209 | 'menu_order' => $start, |
| 210 | 'post_parent' => $parent_id |
| 211 | )); |
| 212 | $ancestors = get_post_ancestors( $post->ID ); |
| 213 | $new_pos[$post->ID] = array( |
| 214 | 'menu_order' => $start, |
| 215 | 'post_parent' => $parent_id, |
| 216 | 'depth' => count($ancestors) ); |
| 217 | $start++; |
| 218 | } |
| 219 | |
| 220 | endforeach; |
| 221 | |
| 222 | // max per request |
| 223 | if ( !isset( $return_data->next ) && $siblings->max_num_pages > 1 ) { |
| 224 | $return_data->next = array( |
| 225 | 'id' => $post->ID, |
| 226 | 'previd' => $previd, |
| 227 | 'nextid' => $nextid, |
| 228 | 'start' => $start, |
| 229 | 'excluded' => array_merge( array_keys( $new_pos ), $excluded ), |
| 230 | ); |
| 231 | } else { |
| 232 | $return_data->next = false; |
| 233 | } |
| 234 | |
| 235 | do_action( 'simple_page_ordering_ordered_posts', $post, $new_pos ); |
| 236 | |
| 237 | if ( ! $return_data->next ) { |
| 238 | // if the moved post has children, we need to refresh the page (unless we're continuing) |
| 239 | $children = get_posts(array( |
| 240 | 'numberposts' => 1, |
| 241 | 'post_type' => $post->post_type, |
| 242 | 'post_status' => $post_stati, |
| 243 | 'post_parent' => $post->ID, |
| 244 | 'fields' => 'ids', |
| 245 | 'update_post_term_cache' => false, |
| 246 | 'update_post_meta_cache' => false, |
| 247 | )); |
| 248 | |
| 249 | if ( ! empty( $children ) ) |
| 250 | die( 'children' ); |
| 251 | } |
| 252 | |
| 253 | $return_data->new_pos = $new_pos; |
| 254 | |
| 255 | die( json_encode( $return_data ) ); |
| 256 | } |
| 257 | |
| 258 | /** |
| 259 | * Append a sort by order link to the post actions |
| 260 | * |
| 261 | * @param string $views |
| 262 | * @return string |
| 263 | */ |
| 264 | public static function sort_by_order_link( $views ) { |
| 265 | $class = ( get_query_var('orderby') == 'menu_order title' ) ? 'current' : ''; |
| 266 | $query_string = remove_query_arg(array( 'orderby', 'order' )); |
| 267 | $query_string = add_query_arg( 'orderby', urlencode('menu_order title'), $query_string ); |
| 268 | $views['byorder'] = '<a href="'. $query_string . '" class="' . $class . '">Sort by Order</a>'; |
| 269 | return $views; |
| 270 | } |
| 271 | |
| 272 | /** |
| 273 | * Checks to see if the current user has the capability to "edit others" for a post type |
| 274 | * |
| 275 | * @param string $post_type Post type name |
| 276 | * @return bool True or false |
| 277 | */ |
| 278 | private static function check_edit_others_caps( $post_type ) { |
| 279 | $post_type_object = get_post_type_object( $post_type ); |
| 280 | $edit_others_cap = empty( $post_type_object ) ? 'edit_others_' . $post_type . 's' : $post_type_object->cap->edit_others_posts; |
| 281 | return apply_filters( 'simple_page_ordering_edit_rights', current_user_can( $edit_others_cap ), $post_type ); |
| 282 | } |
| 283 | } |
| 284 | |
| 285 | Simple_Page_Ordering::get_instance(); |
| 286 | |
| 287 | endif; |