Projects : mp-wp : mp-wp_genesis
| 1 | <?php |
| 2 | /** |
| 3 | * Holds Most of the WordPress classes. |
| 4 | * |
| 5 | * Some of the other classes are contained in other files. For example, the |
| 6 | * WordPress cache is in cache.php and the WordPress roles API is in |
| 7 | * capabilities.php. The third party libraries are contained in their own |
| 8 | * separate files. |
| 9 | * |
| 10 | * @package WordPress |
| 11 | */ |
| 12 | |
| 13 | /** |
| 14 | * WordPress environment setup class. |
| 15 | * |
| 16 | * @package WordPress |
| 17 | * @since 2.0.0 |
| 18 | */ |
| 19 | class WP { |
| 20 | /** |
| 21 | * Public query variables. |
| 22 | * |
| 23 | * Long list of public query variables. |
| 24 | * |
| 25 | * @since 2.0.0 |
| 26 | * @access public |
| 27 | * @var array |
| 28 | */ |
| 29 | var $public_query_vars = array('m', 'p', 'posts', 'w', 'cat', 'withcomments', 'withoutcomments', 's', 'search', 'exact', 'sentence', 'debug', 'calendar', 'page', 'paged', 'more', 'tb', 'pb', 'author', 'order', 'orderby', 'year', 'monthnum', 'day', 'hour', 'minute', 'second', 'name', 'category_name', 'tag', 'feed', 'author_name', 'static', 'pagename', 'page_id', 'error', 'comments_popup', 'attachment', 'attachment_id', 'subpost', 'subpost_id', 'preview', 'robots', 'taxonomy', 'term', 'cpage'); |
| 30 | |
| 31 | /** |
| 32 | * Private query variables. |
| 33 | * |
| 34 | * Long list of private query variables. |
| 35 | * |
| 36 | * @since 2.0.0 |
| 37 | * @var array |
| 38 | */ |
| 39 | var $private_query_vars = array('offset', 'posts_per_page', 'posts_per_archive_page', 'what_to_show', 'showposts', 'nopaging', 'post_type', 'post_status', 'category__in', 'category__not_in', 'category__and', 'tag__in', 'tag__not_in', 'tag__and', 'tag_slug__in', 'tag_slug__and', 'tag_id', 'post_mime_type', 'perm', 'comments_per_page'); |
| 40 | |
| 41 | /** |
| 42 | * Extra query variables set by the user. |
| 43 | * |
| 44 | * @since 2.1.0 |
| 45 | * @var array |
| 46 | */ |
| 47 | var $extra_query_vars = array(); |
| 48 | |
| 49 | /** |
| 50 | * Query variables for setting up the WordPress Query Loop. |
| 51 | * |
| 52 | * @since 2.0.0 |
| 53 | * @var array |
| 54 | */ |
| 55 | var $query_vars; |
| 56 | |
| 57 | /** |
| 58 | * String parsed to set the query variables. |
| 59 | * |
| 60 | * @since 2.0.0 |
| 61 | * @var string |
| 62 | */ |
| 63 | var $query_string; |
| 64 | |
| 65 | /** |
| 66 | * Permalink or requested URI. |
| 67 | * |
| 68 | * @since 2.0.0 |
| 69 | * @var string |
| 70 | */ |
| 71 | var $request; |
| 72 | |
| 73 | /** |
| 74 | * Rewrite rule the request matched. |
| 75 | * |
| 76 | * @since 2.0.0 |
| 77 | * @var string |
| 78 | */ |
| 79 | var $matched_rule; |
| 80 | |
| 81 | /** |
| 82 | * Rewrite query the request matched. |
| 83 | * |
| 84 | * @since 2.0.0 |
| 85 | * @var string |
| 86 | */ |
| 87 | var $matched_query; |
| 88 | |
| 89 | /** |
| 90 | * Whether already did the permalink. |
| 91 | * |
| 92 | * @since 2.0.0 |
| 93 | * @var bool |
| 94 | */ |
| 95 | var $did_permalink = false; |
| 96 | |
| 97 | /** |
| 98 | * Add name to list of public query variables. |
| 99 | * |
| 100 | * @since 2.1.0 |
| 101 | * |
| 102 | * @param string $qv Query variable name. |
| 103 | */ |
| 104 | function add_query_var($qv) { |
| 105 | if ( !in_array($qv, $this->public_query_vars) ) |
| 106 | $this->public_query_vars[] = $qv; |
| 107 | } |
| 108 | |
| 109 | /** |
| 110 | * Set the value of a query variable. |
| 111 | * |
| 112 | * @since 2.3.0 |
| 113 | * |
| 114 | * @param string $key Query variable name. |
| 115 | * @param mixed $value Query variable value. |
| 116 | */ |
| 117 | function set_query_var($key, $value) { |
| 118 | $this->query_vars[$key] = $value; |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Parse request to find correct WordPress query. |
| 123 | * |
| 124 | * Sets up the query variables based on the request. There are also many |
| 125 | * filters and actions that can be used to further manipulate the result. |
| 126 | * |
| 127 | * @since 2.0.0 |
| 128 | * |
| 129 | * @param array|string $extra_query_vars Set the extra query variables. |
| 130 | */ |
| 131 | function parse_request($extra_query_vars = '') { |
| 132 | global $wp_rewrite; |
| 133 | |
| 134 | $this->query_vars = array(); |
| 135 | $taxonomy_query_vars = array(); |
| 136 | |
| 137 | if ( is_array($extra_query_vars) ) |
| 138 | $this->extra_query_vars = & $extra_query_vars; |
| 139 | else if (! empty($extra_query_vars)) |
| 140 | parse_str($extra_query_vars, $this->extra_query_vars); |
| 141 | |
| 142 | // Process PATH_INFO, REQUEST_URI, and 404 for permalinks. |
| 143 | |
| 144 | // Fetch the rewrite rules. |
| 145 | $rewrite = $wp_rewrite->wp_rewrite_rules(); |
| 146 | |
| 147 | if (! empty($rewrite)) { |
| 148 | // If we match a rewrite rule, this will be cleared. |
| 149 | $error = '404'; |
| 150 | $this->did_permalink = true; |
| 151 | |
| 152 | if ( isset($_SERVER['PATH_INFO']) ) |
| 153 | $pathinfo = $_SERVER['PATH_INFO']; |
| 154 | else |
| 155 | $pathinfo = ''; |
| 156 | $pathinfo_array = explode('?', $pathinfo); |
| 157 | $pathinfo = str_replace("%", "%25", $pathinfo_array[0]); |
| 158 | $req_uri = $_SERVER['REQUEST_URI']; |
| 159 | $req_uri_array = explode('?', $req_uri); |
| 160 | $req_uri = $req_uri_array[0]; |
| 161 | $self = $_SERVER['PHP_SELF']; |
| 162 | $home_path = parse_url(get_option('home')); |
| 163 | if ( isset($home_path['path']) ) |
| 164 | $home_path = $home_path['path']; |
| 165 | else |
| 166 | $home_path = ''; |
| 167 | $home_path = trim($home_path, '/'); |
| 168 | |
| 169 | // Trim path info from the end and the leading home path from the |
| 170 | // front. For path info requests, this leaves us with the requesting |
| 171 | // filename, if any. For 404 requests, this leaves us with the |
| 172 | // requested permalink. |
| 173 | $req_uri = str_replace($pathinfo, '', rawurldecode($req_uri)); |
| 174 | $req_uri = trim($req_uri, '/'); |
| 175 | $req_uri = preg_replace("|^$home_path|", '', $req_uri); |
| 176 | $req_uri = trim($req_uri, '/'); |
| 177 | $pathinfo = trim($pathinfo, '/'); |
| 178 | $pathinfo = preg_replace("|^$home_path|", '', $pathinfo); |
| 179 | $pathinfo = trim($pathinfo, '/'); |
| 180 | $self = trim($self, '/'); |
| 181 | $self = preg_replace("|^$home_path|", '', $self); |
| 182 | $self = trim($self, '/'); |
| 183 | |
| 184 | // The requested permalink is in $pathinfo for path info requests and |
| 185 | // $req_uri for other requests. |
| 186 | if ( ! empty($pathinfo) && !preg_match('|^.*' . $wp_rewrite->index . '$|', $pathinfo) ) { |
| 187 | $request = $pathinfo; |
| 188 | } else { |
| 189 | // If the request uri is the index, blank it out so that we don't try to match it against a rule. |
| 190 | if ( $req_uri == $wp_rewrite->index ) |
| 191 | $req_uri = ''; |
| 192 | $request = $req_uri; |
| 193 | } |
| 194 | |
| 195 | $this->request = $request; |
| 196 | |
| 197 | // Look for matches. |
| 198 | $request_match = $request; |
| 199 | foreach ( (array) $rewrite as $match => $query) { |
| 200 | // Don't try to match against AtomPub calls |
| 201 | if ( $req_uri == 'wp-app.php' ) |
| 202 | break; |
| 203 | |
| 204 | // If the requesting file is the anchor of the match, prepend it |
| 205 | // to the path info. |
| 206 | if ((! empty($req_uri)) && (strpos($match, $req_uri) === 0) && ($req_uri != $request)) { |
| 207 | $request_match = $req_uri . '/' . $request; |
| 208 | } |
| 209 | |
| 210 | if (preg_match("!^$match!", $request_match, $matches) || |
| 211 | preg_match("!^$match!", urldecode($request_match), $matches)) { |
| 212 | // Got a match. |
| 213 | $this->matched_rule = $match; |
| 214 | |
| 215 | // Trim the query of everything up to the '?'. |
| 216 | $query = preg_replace("!^.+\?!", '', $query); |
| 217 | |
| 218 | // Substitute the substring matches into the query. |
| 219 | eval("@\$query = \"" . addslashes($query) . "\";"); |
| 220 | |
| 221 | $this->matched_query = $query; |
| 222 | |
| 223 | // Parse the query. |
| 224 | parse_str($query, $perma_query_vars); |
| 225 | |
| 226 | // If we're processing a 404 request, clear the error var |
| 227 | // since we found something. |
| 228 | if (isset($_GET['error'])) |
| 229 | unset($_GET['error']); |
| 230 | |
| 231 | if (isset($error)) |
| 232 | unset($error); |
| 233 | |
| 234 | break; |
| 235 | } |
| 236 | } |
| 237 | |
| 238 | // If req_uri is empty or if it is a request for ourself, unset error. |
| 239 | if (empty($request) || $req_uri == $self || strpos($_SERVER['PHP_SELF'], 'wp-admin/') !== false) { |
| 240 | if (isset($_GET['error'])) |
| 241 | unset($_GET['error']); |
| 242 | |
| 243 | if (isset($error)) |
| 244 | unset($error); |
| 245 | |
| 246 | if (isset($perma_query_vars) && strpos($_SERVER['PHP_SELF'], 'wp-admin/') !== false) |
| 247 | unset($perma_query_vars); |
| 248 | |
| 249 | $this->did_permalink = false; |
| 250 | } |
| 251 | } |
| 252 | |
| 253 | $this->public_query_vars = apply_filters('query_vars', $this->public_query_vars); |
| 254 | |
| 255 | foreach ( $GLOBALS['wp_taxonomies'] as $taxonomy => $t ) |
| 256 | if ( isset($t->query_var) ) |
| 257 | $taxonomy_query_vars[$t->query_var] = $taxonomy; |
| 258 | |
| 259 | for ($i=0; $i<count($this->public_query_vars); $i += 1) { |
| 260 | $wpvar = $this->public_query_vars[$i]; |
| 261 | if (isset($this->extra_query_vars[$wpvar])) |
| 262 | $this->query_vars[$wpvar] = $this->extra_query_vars[$wpvar]; |
| 263 | elseif (isset($GLOBALS[$wpvar])) |
| 264 | $this->query_vars[$wpvar] = $GLOBALS[$wpvar]; |
| 265 | elseif (!empty($_POST[$wpvar])) |
| 266 | $this->query_vars[$wpvar] = $_POST[$wpvar]; |
| 267 | elseif (!empty($_GET[$wpvar])) |
| 268 | $this->query_vars[$wpvar] = $_GET[$wpvar]; |
| 269 | elseif (!empty($perma_query_vars[$wpvar])) |
| 270 | $this->query_vars[$wpvar] = $perma_query_vars[$wpvar]; |
| 271 | |
| 272 | if ( !empty( $this->query_vars[$wpvar] ) ) { |
| 273 | $this->query_vars[$wpvar] = (string) $this->query_vars[$wpvar]; |
| 274 | if ( in_array( $wpvar, $taxonomy_query_vars ) ) { |
| 275 | $this->query_vars['taxonomy'] = $taxonomy_query_vars[$wpvar]; |
| 276 | $this->query_vars['term'] = $this->query_vars[$wpvar]; |
| 277 | } |
| 278 | } |
| 279 | } |
| 280 | |
| 281 | foreach ( (array) $this->private_query_vars as $var) { |
| 282 | if (isset($this->extra_query_vars[$var])) |
| 283 | $this->query_vars[$var] = $this->extra_query_vars[$var]; |
| 284 | elseif (isset($GLOBALS[$var]) && '' != $GLOBALS[$var]) |
| 285 | $this->query_vars[$var] = $GLOBALS[$var]; |
| 286 | } |
| 287 | |
| 288 | if ( isset($error) ) |
| 289 | $this->query_vars['error'] = $error; |
| 290 | |
| 291 | $this->query_vars = apply_filters('request', $this->query_vars); |
| 292 | |
| 293 | do_action_ref_array('parse_request', array(&$this)); |
| 294 | } |
| 295 | |
| 296 | /** |
| 297 | * Send additional HTTP headers for caching, content type, etc. |
| 298 | * |
| 299 | * Sets the X-Pingback header, 404 status (if 404), Content-type. If showing |
| 300 | * a feed, it will also send last-modified, etag, and 304 status if needed. |
| 301 | * |
| 302 | * @since 2.0.0 |
| 303 | */ |
| 304 | function send_headers() { |
| 305 | @header('X-Pingback: '. get_bloginfo('pingback_url')); |
| 306 | if ( is_user_logged_in() ) |
| 307 | nocache_headers(); |
| 308 | if ( !empty($this->query_vars['error']) && '404' == $this->query_vars['error'] ) { |
| 309 | status_header( 404 ); |
| 310 | if ( !is_user_logged_in() ) |
| 311 | nocache_headers(); |
| 312 | @header('Content-Type: ' . get_option('html_type') . '; charset=' . get_option('blog_charset')); |
| 313 | } else if ( empty($this->query_vars['feed']) ) { |
| 314 | @header('Content-Type: ' . get_option('html_type') . '; charset=' . get_option('blog_charset')); |
| 315 | } else { |
| 316 | // We're showing a feed, so WP is indeed the only thing that last changed |
| 317 | if ( !empty($this->query_vars['withcomments']) |
| 318 | || ( empty($this->query_vars['withoutcomments']) |
| 319 | && ( !empty($this->query_vars['p']) |
| 320 | || !empty($this->query_vars['name']) |
| 321 | || !empty($this->query_vars['page_id']) |
| 322 | || !empty($this->query_vars['pagename']) |
| 323 | || !empty($this->query_vars['attachment']) |
| 324 | || !empty($this->query_vars['attachment_id']) |
| 325 | ) |
| 326 | ) |
| 327 | ) |
| 328 | $wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastcommentmodified('GMT'), 0).' GMT'; |
| 329 | else |
| 330 | $wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastpostmodified('GMT'), 0).' GMT'; |
| 331 | $wp_etag = '"' . md5($wp_last_modified) . '"'; |
| 332 | @header("Last-Modified: $wp_last_modified"); |
| 333 | @header("ETag: $wp_etag"); |
| 334 | |
| 335 | // Support for Conditional GET |
| 336 | if (isset($_SERVER['HTTP_IF_NONE_MATCH'])) |
| 337 | $client_etag = stripslashes(stripslashes($_SERVER['HTTP_IF_NONE_MATCH'])); |
| 338 | else $client_etag = false; |
| 339 | |
| 340 | $client_last_modified = empty($_SERVER['HTTP_IF_MODIFIED_SINCE']) ? '' : trim($_SERVER['HTTP_IF_MODIFIED_SINCE']); |
| 341 | // If string is empty, return 0. If not, attempt to parse into a timestamp |
| 342 | $client_modified_timestamp = $client_last_modified ? strtotime($client_last_modified) : 0; |
| 343 | |
| 344 | // Make a timestamp for our most recent modification... |
| 345 | $wp_modified_timestamp = strtotime($wp_last_modified); |
| 346 | |
| 347 | if ( ($client_last_modified && $client_etag) ? |
| 348 | (($client_modified_timestamp >= $wp_modified_timestamp) && ($client_etag == $wp_etag)) : |
| 349 | (($client_modified_timestamp >= $wp_modified_timestamp) || ($client_etag == $wp_etag)) ) { |
| 350 | status_header( 304 ); |
| 351 | exit; |
| 352 | } |
| 353 | } |
| 354 | |
| 355 | do_action_ref_array('send_headers', array(&$this)); |
| 356 | } |
| 357 | |
| 358 | /** |
| 359 | * Sets the query string property based off of the query variable property. |
| 360 | * |
| 361 | * The 'query_string' filter is deprecated, but still works. Plugins should |
| 362 | * use the 'request' filter instead. |
| 363 | * |
| 364 | * @since 2.0.0 |
| 365 | */ |
| 366 | function build_query_string() { |
| 367 | $this->query_string = ''; |
| 368 | foreach ( (array) array_keys($this->query_vars) as $wpvar) { |
| 369 | if ( '' != $this->query_vars[$wpvar] ) { |
| 370 | $this->query_string .= (strlen($this->query_string) < 1) ? '' : '&'; |
| 371 | if ( !is_scalar($this->query_vars[$wpvar]) ) // Discard non-scalars. |
| 372 | continue; |
| 373 | $this->query_string .= $wpvar . '=' . rawurlencode($this->query_vars[$wpvar]); |
| 374 | } |
| 375 | } |
| 376 | |
| 377 | // query_string filter deprecated. Use request filter instead. |
| 378 | if ( has_filter('query_string') ) { // Don't bother filtering and parsing if no plugins are hooked in. |
| 379 | $this->query_string = apply_filters('query_string', $this->query_string); |
| 380 | parse_str($this->query_string, $this->query_vars); |
| 381 | } |
| 382 | } |
| 383 | |
| 384 | /** |
| 385 | * Setup the WordPress Globals. |
| 386 | * |
| 387 | * The query_vars property will be extracted to the GLOBALS. So care should |
| 388 | * be taken when naming global variables that might interfere with the |
| 389 | * WordPress environment. |
| 390 | * |
| 391 | * @global string $query_string Query string for the loop. |
| 392 | * @global int $more Only set, if single page or post. |
| 393 | * @global int $single If single page or post. Only set, if single page or post. |
| 394 | * |
| 395 | * @since 2.0.0 |
| 396 | */ |
| 397 | function register_globals() { |
| 398 | global $wp_query; |
| 399 | // Extract updated query vars back into global namespace. |
| 400 | foreach ( (array) $wp_query->query_vars as $key => $value) { |
| 401 | $GLOBALS[$key] = $value; |
| 402 | } |
| 403 | |
| 404 | $GLOBALS['query_string'] = & $this->query_string; |
| 405 | $GLOBALS['posts'] = & $wp_query->posts; |
| 406 | $GLOBALS['post'] = & $wp_query->post; |
| 407 | $GLOBALS['request'] = & $wp_query->request; |
| 408 | |
| 409 | if ( is_single() || is_page() ) { |
| 410 | $GLOBALS['more'] = 1; |
| 411 | $GLOBALS['single'] = 1; |
| 412 | } |
| 413 | } |
| 414 | |
| 415 | /** |
| 416 | * Setup the current user. |
| 417 | * |
| 418 | * @since 2.0.0 |
| 419 | */ |
| 420 | function init() { |
| 421 | wp_get_current_user(); |
| 422 | } |
| 423 | |
| 424 | /** |
| 425 | * Setup the Loop based on the query variables. |
| 426 | * |
| 427 | * @uses WP::$query_vars |
| 428 | * @since 2.0.0 |
| 429 | */ |
| 430 | function query_posts() { |
| 431 | global $wp_the_query; |
| 432 | $this->build_query_string(); |
| 433 | $wp_the_query->query($this->query_vars); |
| 434 | } |
| 435 | |
| 436 | /** |
| 437 | * Set the Headers for 404, if permalink is not found. |
| 438 | * |
| 439 | * Issue a 404 if a permalink request doesn't match any posts. Don't issue |
| 440 | * a 404 if one was already issued, if the request was a search, or if the |
| 441 | * request was a regular query string request rather than a permalink |
| 442 | * request. Issues a 200, if not 404. |
| 443 | * |
| 444 | * @since 2.0.0 |
| 445 | */ |
| 446 | function handle_404() { |
| 447 | global $wp_query; |
| 448 | |
| 449 | if ( (0 == count($wp_query->posts)) && !is_404() && !is_search() && ( $this->did_permalink || (!empty($_SERVER['QUERY_STRING']) && (false === strpos($_SERVER['REQUEST_URI'], '?'))) ) ) { |
| 450 | // Don't 404 for these queries if they matched an object. |
| 451 | if ( ( is_tag() || is_category() || is_author() ) && $wp_query->get_queried_object() ) { |
| 452 | if ( !is_404() ) |
| 453 | status_header( 200 ); |
| 454 | return; |
| 455 | } |
| 456 | $wp_query->set_404(); |
| 457 | status_header( 404 ); |
| 458 | nocache_headers(); |
| 459 | } elseif ( !is_404() ) { |
| 460 | status_header( 200 ); |
| 461 | } |
| 462 | } |
| 463 | |
| 464 | /** |
| 465 | * Sets up all of the variables required by the WordPress environment. |
| 466 | * |
| 467 | * The action 'wp' has one parameter that references the WP object. It |
| 468 | * allows for accessing the properties and methods to further manipulate the |
| 469 | * object. |
| 470 | * |
| 471 | * @since 2.0.0 |
| 472 | * |
| 473 | * @param string|array $query_args Passed to {@link parse_request()} |
| 474 | */ |
| 475 | function main($query_args = '') { |
| 476 | $this->init(); |
| 477 | $this->parse_request($query_args); |
| 478 | $this->send_headers(); |
| 479 | $this->query_posts(); |
| 480 | $this->handle_404(); |
| 481 | $this->register_globals(); |
| 482 | do_action_ref_array('wp', array(&$this)); |
| 483 | } |
| 484 | |
| 485 | /** |
| 486 | * PHP4 Constructor - Does nothing. |
| 487 | * |
| 488 | * Call main() method when ready to run setup. |
| 489 | * |
| 490 | * @since 2.0.0 |
| 491 | * |
| 492 | * @return WP |
| 493 | */ |
| 494 | function WP() { |
| 495 | // Empty. |
| 496 | } |
| 497 | } |
| 498 | |
| 499 | /** |
| 500 | * WordPress Error class. |
| 501 | * |
| 502 | * Container for checking for WordPress errors and error messages. Return |
| 503 | * WP_Error and use {@link is_wp_error()} to check if this class is returned. |
| 504 | * Many core WordPress functions pass this class in the event of an error and |
| 505 | * if not handled properly will result in code errors. |
| 506 | * |
| 507 | * @package WordPress |
| 508 | * @since 2.1.0 |
| 509 | */ |
| 510 | class WP_Error { |
| 511 | /** |
| 512 | * Stores the list of errors. |
| 513 | * |
| 514 | * @since 2.1.0 |
| 515 | * @var array |
| 516 | * @access private |
| 517 | */ |
| 518 | var $errors = array(); |
| 519 | |
| 520 | /** |
| 521 | * Stores the list of data for error codes. |
| 522 | * |
| 523 | * @since 2.1.0 |
| 524 | * @var array |
| 525 | * @access private |
| 526 | */ |
| 527 | var $error_data = array(); |
| 528 | |
| 529 | /** |
| 530 | * PHP4 Constructor - Sets up error message. |
| 531 | * |
| 532 | * If code parameter is empty then nothing will be done. It is possible to |
| 533 | * add multiple messages to the same code, but with other methods in the |
| 534 | * class. |
| 535 | * |
| 536 | * All parameters are optional, but if the code parameter is set, then the |
| 537 | * data parameter is optional. |
| 538 | * |
| 539 | * @since 2.1.0 |
| 540 | * |
| 541 | * @param string|int $code Error code |
| 542 | * @param string $message Error message |
| 543 | * @param mixed $data Optional. Error data. |
| 544 | * @return WP_Error |
| 545 | */ |
| 546 | function WP_Error($code = '', $message = '', $data = '') { |
| 547 | if ( empty($code) ) |
| 548 | return; |
| 549 | |
| 550 | $this->errors[$code][] = $message; |
| 551 | |
| 552 | if ( ! empty($data) ) |
| 553 | $this->error_data[$code] = $data; |
| 554 | } |
| 555 | |
| 556 | /** |
| 557 | * Retrieve all error codes. |
| 558 | * |
| 559 | * @since 2.1.0 |
| 560 | * @access public |
| 561 | * |
| 562 | * @return array List of error codes, if avaiable. |
| 563 | */ |
| 564 | function get_error_codes() { |
| 565 | if ( empty($this->errors) ) |
| 566 | return array(); |
| 567 | |
| 568 | return array_keys($this->errors); |
| 569 | } |
| 570 | |
| 571 | /** |
| 572 | * Retrieve first error code available. |
| 573 | * |
| 574 | * @since 2.1.0 |
| 575 | * @access public |
| 576 | * |
| 577 | * @return string|int Empty string, if no error codes. |
| 578 | */ |
| 579 | function get_error_code() { |
| 580 | $codes = $this->get_error_codes(); |
| 581 | |
| 582 | if ( empty($codes) ) |
| 583 | return ''; |
| 584 | |
| 585 | return $codes[0]; |
| 586 | } |
| 587 | |
| 588 | /** |
| 589 | * Retrieve all error messages or error messages matching code. |
| 590 | * |
| 591 | * @since 2.1.0 |
| 592 | * |
| 593 | * @param string|int $code Optional. Retrieve messages matching code, if exists. |
| 594 | * @return array Error strings on success, or empty array on failure (if using codee parameter). |
| 595 | */ |
| 596 | function get_error_messages($code = '') { |
| 597 | // Return all messages if no code specified. |
| 598 | if ( empty($code) ) { |
| 599 | $all_messages = array(); |
| 600 | foreach ( (array) $this->errors as $code => $messages ) |
| 601 | $all_messages = array_merge($all_messages, $messages); |
| 602 | |
| 603 | return $all_messages; |
| 604 | } |
| 605 | |
| 606 | if ( isset($this->errors[$code]) ) |
| 607 | return $this->errors[$code]; |
| 608 | else |
| 609 | return array(); |
| 610 | } |
| 611 | |
| 612 | /** |
| 613 | * Get single error message. |
| 614 | * |
| 615 | * This will get the first message available for the code. If no code is |
| 616 | * given then the first code available will be used. |
| 617 | * |
| 618 | * @since 2.1.0 |
| 619 | * |
| 620 | * @param string|int $code Optional. Error code to retrieve message. |
| 621 | * @return string |
| 622 | */ |
| 623 | function get_error_message($code = '') { |
| 624 | if ( empty($code) ) |
| 625 | $code = $this->get_error_code(); |
| 626 | $messages = $this->get_error_messages($code); |
| 627 | if ( empty($messages) ) |
| 628 | return ''; |
| 629 | return $messages[0]; |
| 630 | } |
| 631 | |
| 632 | /** |
| 633 | * Retrieve error data for error code. |
| 634 | * |
| 635 | * @since 2.1.0 |
| 636 | * |
| 637 | * @param string|int $code Optional. Error code. |
| 638 | * @return mixed Null, if no errors. |
| 639 | */ |
| 640 | function get_error_data($code = '') { |
| 641 | if ( empty($code) ) |
| 642 | $code = $this->get_error_code(); |
| 643 | |
| 644 | if ( isset($this->error_data[$code]) ) |
| 645 | return $this->error_data[$code]; |
| 646 | return null; |
| 647 | } |
| 648 | |
| 649 | /** |
| 650 | * Append more error messages to list of error messages. |
| 651 | * |
| 652 | * @since 2.1.0 |
| 653 | * @access public |
| 654 | * |
| 655 | * @param string|int $code Error code. |
| 656 | * @param string $message Error message. |
| 657 | * @param mixed $data Optional. Error data. |
| 658 | */ |
| 659 | function add($code, $message, $data = '') { |
| 660 | $this->errors[$code][] = $message; |
| 661 | if ( ! empty($data) ) |
| 662 | $this->error_data[$code] = $data; |
| 663 | } |
| 664 | |
| 665 | /** |
| 666 | * Add data for error code. |
| 667 | * |
| 668 | * The error code can only contain one error data. |
| 669 | * |
| 670 | * @since 2.1.0 |
| 671 | * |
| 672 | * @param mixed $data Error data. |
| 673 | * @param string|int $code Error code. |
| 674 | */ |
| 675 | function add_data($data, $code = '') { |
| 676 | if ( empty($code) ) |
| 677 | $code = $this->get_error_code(); |
| 678 | |
| 679 | $this->error_data[$code] = $data; |
| 680 | } |
| 681 | } |
| 682 | |
| 683 | /** |
| 684 | * Check whether variable is a WordPress Error. |
| 685 | * |
| 686 | * Looks at the object and if a WP_Error class. Does not check to see if the |
| 687 | * parent is also WP_Error, so can't inherit WP_Error and still use this |
| 688 | * function. |
| 689 | * |
| 690 | * @since 2.1.0 |
| 691 | * |
| 692 | * @param mixed $thing Check if unknown variable is WordPress Error object. |
| 693 | * @return bool True, if WP_Error. False, if not WP_Error. |
| 694 | */ |
| 695 | function is_wp_error($thing) { |
| 696 | if ( is_object($thing) && is_a($thing, 'WP_Error') ) |
| 697 | return true; |
| 698 | return false; |
| 699 | } |
| 700 | |
| 701 | /** |
| 702 | * A class for displaying various tree-like structures. |
| 703 | * |
| 704 | * Extend the Walker class to use it, see examples at the below. Child classes |
| 705 | * do not need to implement all of the abstract methods in the class. The child |
| 706 | * only needs to implement the methods that are needed. Also, the methods are |
| 707 | * not strictly abstract in that the parameter definition needs to be followed. |
| 708 | * The child classes can have additional parameters. |
| 709 | * |
| 710 | * @package WordPress |
| 711 | * @since 2.1.0 |
| 712 | * @abstract |
| 713 | */ |
| 714 | class Walker { |
| 715 | /** |
| 716 | * What the class handles. |
| 717 | * |
| 718 | * @since 2.1.0 |
| 719 | * @var string |
| 720 | * @access public |
| 721 | */ |
| 722 | var $tree_type; |
| 723 | |
| 724 | /** |
| 725 | * DB fields to use. |
| 726 | * |
| 727 | * @since 2.1.0 |
| 728 | * @var array |
| 729 | * @access protected |
| 730 | */ |
| 731 | var $db_fields; |
| 732 | |
| 733 | /** |
| 734 | * Max number of pages walked by the paged walker |
| 735 | * |
| 736 | * @since 2.7.0 |
| 737 | * @var int |
| 738 | * @access protected |
| 739 | */ |
| 740 | var $max_pages = 1; |
| 741 | |
| 742 | /** |
| 743 | * Starts the list before the elements are added. |
| 744 | * |
| 745 | * Additional parameters are used in child classes. The args parameter holds |
| 746 | * additional values that may be used with the child class methods. This |
| 747 | * method is called at the start of the output list. |
| 748 | * |
| 749 | * @since 2.1.0 |
| 750 | * @abstract |
| 751 | * |
| 752 | * @param string $output Passed by reference. Used to append additional content. |
| 753 | */ |
| 754 | # function start_lvl(&$output) {} |
| 755 | |
| 756 | /** |
| 757 | * Ends the list of after the elements are added. |
| 758 | * |
| 759 | * Additional parameters are used in child classes. The args parameter holds |
| 760 | * additional values that may be used with the child class methods. This |
| 761 | * method finishes the list at the end of output of the elements. |
| 762 | * |
| 763 | * @since 2.1.0 |
| 764 | * @abstract |
| 765 | * |
| 766 | * @param string $output Passed by reference. Used to append additional content. |
| 767 | */ |
| 768 | # function end_lvl(&$output) {} |
| 769 | |
| 770 | /** |
| 771 | * Start the element output. |
| 772 | * |
| 773 | * Additional parameters are used in child classes. The args parameter holds |
| 774 | * additional values that may be used with the child class methods. Includes |
| 775 | * the element output also. |
| 776 | * |
| 777 | * @since 2.1.0 |
| 778 | * @abstract |
| 779 | * |
| 780 | * @param string $output Passed by reference. Used to append additional content. |
| 781 | */ |
| 782 | # function start_el(&$output) {} |
| 783 | |
| 784 | /** |
| 785 | * Ends the element output, if needed. |
| 786 | * |
| 787 | * Additional parameters are used in child classes. The args parameter holds |
| 788 | * additional values that may be used with the child class methods. |
| 789 | * |
| 790 | * @since 2.1.0 |
| 791 | * @abstract |
| 792 | * |
| 793 | * @param string $output Passed by reference. Used to append additional content. |
| 794 | * @param object $thing object involved in walking |
| 795 | * @param int $depth Depth of object |
| 796 | * @param array $args additional arguments |
| 797 | */ |
| 798 | function end_el(&$output, $thing, $depth, $args) {} |
| 799 | |
| 800 | /** |
| 801 | * Traverse elements to create list from elements. |
| 802 | * |
| 803 | * Display one element if the element doesn't have any children otherwise, |
| 804 | * display the element and its children. Will only traverse up to the max |
| 805 | * depth and no ignore elements under that depth. It is possible to set the |
| 806 | * max depth to include all depths, see walk() method. |
| 807 | * |
| 808 | * This method shouldn't be called directly, use the walk() method instead. |
| 809 | * |
| 810 | * @since 2.5.0 |
| 811 | * |
| 812 | * @param object $element Data object |
| 813 | * @param array $children_elements List of elements to continue traversing. |
| 814 | * @param int $max_depth Max depth to traverse. |
| 815 | * @param int $depth Depth of current element. |
| 816 | * @param array $args |
| 817 | * @param string $output Passed by reference. Used to append additional content. |
| 818 | * @return null Null on failure with no changes to parameters. |
| 819 | */ |
| 820 | function display_element( $element, &$children_elements, $max_depth, $depth=0, $args, &$output ) { |
| 821 | |
| 822 | if ( !$element ) |
| 823 | return; |
| 824 | |
| 825 | $id_field = $this->db_fields['id']; |
| 826 | |
| 827 | //display this element |
| 828 | if ( is_array( $args[0] ) ) |
| 829 | $args[0]['has_children'] = ! empty( $children_elements[$element->$id_field] ); |
| 830 | $cb_args = array_merge( array(&$output, $element, $depth), $args); |
| 831 | call_user_func_array(array(&$this, 'start_el'), $cb_args); |
| 832 | |
| 833 | $id = $element->$id_field; |
| 834 | |
| 835 | // descend only when the depth is right and there are childrens for this element |
| 836 | if ( ($max_depth == 0 || $max_depth > $depth+1 ) && isset( $children_elements[$id]) ) { |
| 837 | |
| 838 | foreach( $children_elements[ $id ] as $child ){ |
| 839 | |
| 840 | if ( !isset($newlevel) ) { |
| 841 | $newlevel = true; |
| 842 | //start the child delimiter |
| 843 | $cb_args = array_merge( array(&$output, $depth), $args); |
| 844 | call_user_func_array(array(&$this, 'start_lvl'), $cb_args); |
| 845 | } |
| 846 | $this->display_element( $child, $children_elements, $max_depth, $depth + 1, $args, $output ); |
| 847 | } |
| 848 | unset( $children_elements[ $id ] ); |
| 849 | } |
| 850 | |
| 851 | if ( isset($newlevel) && $newlevel ){ |
| 852 | //end the child delimiter |
| 853 | $cb_args = array_merge( array(&$output, $depth), $args); |
| 854 | call_user_func_array(array(&$this, 'end_lvl'), $cb_args); |
| 855 | } |
| 856 | |
| 857 | //end this element |
| 858 | $cb_args = array_merge( array(&$output, $element, $depth), $args); |
| 859 | call_user_func_array(array(&$this, 'end_el'), $cb_args); |
| 860 | } |
| 861 | |
| 862 | /** |
| 863 | * Display array of elements hierarchically. |
| 864 | * |
| 865 | * It is a generic function which does not assume any existing order of |
| 866 | * elements. max_depth = -1 means flatly display every element. max_depth = |
| 867 | * 0 means display all levels. max_depth > 0 specifies the number of |
| 868 | * display levels. |
| 869 | * |
| 870 | * @since 2.1.0 |
| 871 | * |
| 872 | * @param array $elements |
| 873 | * @param int $max_depth |
| 874 | * @return string |
| 875 | */ |
| 876 | function walk( $elements, $max_depth) { |
| 877 | |
| 878 | $args = array_slice(func_get_args(), 2); |
| 879 | $output = ''; |
| 880 | |
| 881 | if ($max_depth < -1) //invalid parameter |
| 882 | return $output; |
| 883 | |
| 884 | if (empty($elements)) //nothing to walk |
| 885 | return $output; |
| 886 | |
| 887 | $id_field = $this->db_fields['id']; |
| 888 | $parent_field = $this->db_fields['parent']; |
| 889 | |
| 890 | // flat display |
| 891 | if ( -1 == $max_depth ) { |
| 892 | $empty_array = array(); |
| 893 | foreach ( $elements as $e ) |
| 894 | $this->display_element( $e, $empty_array, 1, 0, $args, $output ); |
| 895 | return $output; |
| 896 | } |
| 897 | |
| 898 | /* |
| 899 | * need to display in hierarchical order |
| 900 | * seperate elements into two buckets: top level and children elements |
| 901 | * children_elements is two dimensional array, eg. |
| 902 | * children_elements[10][] contains all sub-elements whose parent is 10. |
| 903 | */ |
| 904 | $top_level_elements = array(); |
| 905 | $children_elements = array(); |
| 906 | foreach ( $elements as $e) { |
| 907 | if ( 0 == $e->$parent_field ) |
| 908 | $top_level_elements[] = $e; |
| 909 | else |
| 910 | $children_elements[ $e->$parent_field ][] = $e; |
| 911 | } |
| 912 | |
| 913 | /* |
| 914 | * when none of the elements is top level |
| 915 | * assume the first one must be root of the sub elements |
| 916 | */ |
| 917 | if ( empty($top_level_elements) ) { |
| 918 | |
| 919 | $first = array_slice( $elements, 0, 1 ); |
| 920 | $root = $first[0]; |
| 921 | |
| 922 | $top_level_elements = array(); |
| 923 | $children_elements = array(); |
| 924 | foreach ( $elements as $e) { |
| 925 | if ( $root->$parent_field == $e->$parent_field ) |
| 926 | $top_level_elements[] = $e; |
| 927 | else |
| 928 | $children_elements[ $e->$parent_field ][] = $e; |
| 929 | } |
| 930 | } |
| 931 | |
| 932 | foreach ( $top_level_elements as $e ) |
| 933 | $this->display_element( $e, $children_elements, $max_depth, 0, $args, $output ); |
| 934 | |
| 935 | /* |
| 936 | * if we are displaying all levels, and remaining children_elements is not empty, |
| 937 | * then we got orphans, which should be displayed regardless |
| 938 | */ |
| 939 | if ( ( $max_depth == 0 ) && count( $children_elements ) > 0 ) { |
| 940 | $empty_array = array(); |
| 941 | foreach ( $children_elements as $orphans ) |
| 942 | foreach( $orphans as $op ) |
| 943 | $this->display_element( $op, $empty_array, 1, 0, $args, $output ); |
| 944 | } |
| 945 | |
| 946 | return $output; |
| 947 | } |
| 948 | |
| 949 | /** |
| 950 | * paged_walk() - produce a page of nested elements |
| 951 | * |
| 952 | * Given an array of hierarchical elements, the maximum depth, a specific page number, |
| 953 | * and number of elements per page, this function first determines all top level root elements |
| 954 | * belonging to that page, then lists them and all of their children in hierarchical order. |
| 955 | * |
| 956 | * @package WordPress |
| 957 | * @since 2.7 |
| 958 | * @param $max_depth = 0 means display all levels; $max_depth > 0 specifies the number of display levels. |
| 959 | * @param $page_num the specific page number, beginning with 1. |
| 960 | * @return XHTML of the specified page of elements |
| 961 | */ |
| 962 | function paged_walk( $elements, $max_depth, $page_num, $per_page ) { |
| 963 | |
| 964 | /* sanity check */ |
| 965 | if ( empty($elements) || $max_depth < -1 ) |
| 966 | return ''; |
| 967 | |
| 968 | $args = array_slice( func_get_args(), 4 ); |
| 969 | $output = ''; |
| 970 | |
| 971 | $id_field = $this->db_fields['id']; |
| 972 | $parent_field = $this->db_fields['parent']; |
| 973 | |
| 974 | $count = -1; |
| 975 | if ( -1 == $max_depth ) |
| 976 | $total_top = count( $elements ); |
| 977 | if ( $page_num < 1 || $per_page < 0 ) { |
| 978 | // No paging |
| 979 | $paging = false; |
| 980 | $start = 0; |
| 981 | if ( -1 == $max_depth ) |
| 982 | $end = $total_top; |
| 983 | $this->max_pages = 1; |
| 984 | } else { |
| 985 | $paging = true; |
| 986 | $start = ( (int)$page_num - 1 ) * (int)$per_page; |
| 987 | $end = $start + $per_page; |
| 988 | if ( -1 == $max_depth ) |
| 989 | $this->max_pages = ceil($total_top / $per_page); |
| 990 | } |
| 991 | |
| 992 | // flat display |
| 993 | if ( -1 == $max_depth ) { |
| 994 | if ( !empty($args[0]['reverse_top_level']) ) { |
| 995 | $elements = array_reverse( $elements ); |
| 996 | $oldstart = $start; |
| 997 | $start = $total_top - $end; |
| 998 | $end = $total_top - $oldstart; |
| 999 | } |
| 1000 | |
| 1001 | $empty_array = array(); |
| 1002 | foreach ( $elements as $e ) { |
| 1003 | $count++; |
| 1004 | if ( $count < $start ) |
| 1005 | continue; |
| 1006 | if ( $count >= $end ) |
| 1007 | break; |
| 1008 | $this->display_element( $e, $empty_array, 1, 0, $args, $output ); |
| 1009 | } |
| 1010 | return $output; |
| 1011 | } |
| 1012 | |
| 1013 | /* |
| 1014 | * seperate elements into two buckets: top level and children elements |
| 1015 | * children_elements is two dimensional array, eg. |
| 1016 | * children_elements[10][] contains all sub-elements whose parent is 10. |
| 1017 | */ |
| 1018 | $top_level_elements = array(); |
| 1019 | $children_elements = array(); |
| 1020 | foreach ( $elements as $e) { |
| 1021 | if ( 0 == $e->$parent_field ) |
| 1022 | $top_level_elements[] = $e; |
| 1023 | else |
| 1024 | $children_elements[ $e->$parent_field ][] = $e; |
| 1025 | } |
| 1026 | |
| 1027 | $total_top = count( $top_level_elements ); |
| 1028 | if ( $paging ) |
| 1029 | $this->max_pages = ceil($total_top / $per_page); |
| 1030 | else |
| 1031 | $end = $total_top; |
| 1032 | |
| 1033 | if ( !empty($args[0]['reverse_top_level']) ) { |
| 1034 | $top_level_elements = array_reverse( $top_level_elements ); |
| 1035 | $oldstart = $start; |
| 1036 | $start = $total_top - $end; |
| 1037 | $end = $total_top - $oldstart; |
| 1038 | } |
| 1039 | if ( !empty($args[0]['reverse_children']) ) { |
| 1040 | foreach ( $children_elements as $parent => $children ) |
| 1041 | $children_elements[$parent] = array_reverse( $children ); |
| 1042 | } |
| 1043 | |
| 1044 | foreach ( $top_level_elements as $e ) { |
| 1045 | $count++; |
| 1046 | |
| 1047 | //for the last page, need to unset earlier children in order to keep track of orphans |
| 1048 | if ( $end >= $total_top && $count < $start ) |
| 1049 | $this->unset_children( $e, $children_elements ); |
| 1050 | |
| 1051 | if ( $count < $start ) |
| 1052 | continue; |
| 1053 | |
| 1054 | if ( $count >= $end ) |
| 1055 | break; |
| 1056 | |
| 1057 | $this->display_element( $e, $children_elements, $max_depth, 0, $args, $output ); |
| 1058 | } |
| 1059 | |
| 1060 | if ( $end >= $total_top && count( $children_elements ) > 0 ) { |
| 1061 | $empty_array = array(); |
| 1062 | foreach ( $children_elements as $orphans ) |
| 1063 | foreach( $orphans as $op ) |
| 1064 | $this->display_element( $op, $empty_array, 1, 0, $args, $output ); |
| 1065 | } |
| 1066 | |
| 1067 | return $output; |
| 1068 | } |
| 1069 | |
| 1070 | function get_number_of_root_elements( $elements ){ |
| 1071 | |
| 1072 | $num = 0; |
| 1073 | $parent_field = $this->db_fields['parent']; |
| 1074 | |
| 1075 | foreach ( $elements as $e) { |
| 1076 | if ( 0 == $e->$parent_field ) |
| 1077 | $num++; |
| 1078 | } |
| 1079 | return $num; |
| 1080 | } |
| 1081 | |
| 1082 | // unset all the children for a given top level element |
| 1083 | function unset_children( $e, &$children_elements ){ |
| 1084 | |
| 1085 | if ( !$e || !$children_elements ) |
| 1086 | return; |
| 1087 | |
| 1088 | $id_field = $this->db_fields['id']; |
| 1089 | $id = $e->$id_field; |
| 1090 | |
| 1091 | if ( !empty($children_elements[$id]) && is_array($children_elements[$id]) ) |
| 1092 | foreach ( (array) $children_elements[$id] as $child ) |
| 1093 | $this->unset_children( $child, $children_elements ); |
| 1094 | |
| 1095 | if ( isset($children_elements[$id]) ) |
| 1096 | unset( $children_elements[$id] ); |
| 1097 | |
| 1098 | } |
| 1099 | } |
| 1100 | |
| 1101 | /** |
| 1102 | * Create HTML list of pages. |
| 1103 | * |
| 1104 | * @package WordPress |
| 1105 | * @since 2.1.0 |
| 1106 | * @uses Walker |
| 1107 | */ |
| 1108 | class Walker_Page extends Walker { |
| 1109 | /** |
| 1110 | * @see Walker::$tree_type |
| 1111 | * @since 2.1.0 |
| 1112 | * @var string |
| 1113 | */ |
| 1114 | var $tree_type = 'page'; |
| 1115 | |
| 1116 | /** |
| 1117 | * @see Walker::$db_fields |
| 1118 | * @since 2.1.0 |
| 1119 | * @todo Decouple this. |
| 1120 | * @var array |
| 1121 | */ |
| 1122 | var $db_fields = array ('parent' => 'post_parent', 'id' => 'ID'); |
| 1123 | |
| 1124 | /** |
| 1125 | * @see Walker::start_lvl() |
| 1126 | * @since 2.1.0 |
| 1127 | * |
| 1128 | * @param string $output Passed by reference. Used to append additional content. |
| 1129 | * @param int $depth Depth of page. Used for padding. |
| 1130 | */ |
| 1131 | function start_lvl(&$output, $depth) { |
| 1132 | $indent = str_repeat("\t", $depth); |
| 1133 | $output .= "\n$indent<ul>\n"; |
| 1134 | } |
| 1135 | |
| 1136 | /** |
| 1137 | * @see Walker::end_lvl() |
| 1138 | * @since 2.1.0 |
| 1139 | * |
| 1140 | * @param string $output Passed by reference. Used to append additional content. |
| 1141 | * @param int $depth Depth of page. Used for padding. |
| 1142 | */ |
| 1143 | function end_lvl(&$output, $depth) { |
| 1144 | $indent = str_repeat("\t", $depth); |
| 1145 | $output .= "$indent</ul>\n"; |
| 1146 | } |
| 1147 | |
| 1148 | /** |
| 1149 | * @see Walker::start_el() |
| 1150 | * @since 2.1.0 |
| 1151 | * |
| 1152 | * @param string $output Passed by reference. Used to append additional content. |
| 1153 | * @param object $page Page data object. |
| 1154 | * @param int $depth Depth of page. Used for padding. |
| 1155 | * @param int $current_page Page ID. |
| 1156 | * @param array $args |
| 1157 | */ |
| 1158 | function start_el(&$output, $page, $depth, $args, $current_page) { |
| 1159 | if ( $depth ) |
| 1160 | $indent = str_repeat("\t", $depth); |
| 1161 | else |
| 1162 | $indent = ''; |
| 1163 | |
| 1164 | extract($args, EXTR_SKIP); |
| 1165 | $css_class = 'page_item page-item-'.$page->ID; |
| 1166 | if ( !empty($current_page) ) { |
| 1167 | $_current_page = get_page( $current_page ); |
| 1168 | if ( isset($_current_page->ancestors) && in_array($page->ID, (array) $_current_page->ancestors) ) |
| 1169 | $css_class .= ' current_page_ancestor'; |
| 1170 | if ( $page->ID == $current_page ) |
| 1171 | $css_class .= ' current_page_item'; |
| 1172 | elseif ( $_current_page && $page->ID == $_current_page->post_parent ) |
| 1173 | $css_class .= ' current_page_parent'; |
| 1174 | } elseif ( $page->ID == get_option('page_for_posts') ) { |
| 1175 | $css_class .= ' current_page_parent'; |
| 1176 | } |
| 1177 | |
| 1178 | $output .= $indent . '<li class="' . $css_class . '"><a href="' . get_page_link($page->ID) . '" title="' . attribute_escape(apply_filters('the_title', $page->post_title)) . '">' . $link_before . apply_filters('the_title', $page->post_title) . $link_after . '</a>'; |
| 1179 | |
| 1180 | if ( !empty($show_date) ) { |
| 1181 | if ( 'modified' == $show_date ) |
| 1182 | $time = $page->post_modified; |
| 1183 | else |
| 1184 | $time = $page->post_date; |
| 1185 | |
| 1186 | $output .= " " . mysql2date($date_format, $time); |
| 1187 | } |
| 1188 | } |
| 1189 | |
| 1190 | /** |
| 1191 | * @see Walker::end_el() |
| 1192 | * @since 2.1.0 |
| 1193 | * |
| 1194 | * @param string $output Passed by reference. Used to append additional content. |
| 1195 | * @param object $page Page data object. Not used. |
| 1196 | * @param int $depth Depth of page. Not Used. |
| 1197 | */ |
| 1198 | function end_el(&$output, $page, $depth, $args) { |
| 1199 | $output .= "</li>\n"; |
| 1200 | } |
| 1201 | |
| 1202 | } |
| 1203 | |
| 1204 | /** |
| 1205 | * Create HTML dropdown list of pages. |
| 1206 | * |
| 1207 | * @package WordPress |
| 1208 | * @since 2.1.0 |
| 1209 | * @uses Walker |
| 1210 | */ |
| 1211 | class Walker_PageDropdown extends Walker { |
| 1212 | /** |
| 1213 | * @see Walker::$tree_type |
| 1214 | * @since 2.1.0 |
| 1215 | * @var string |
| 1216 | */ |
| 1217 | var $tree_type = 'page'; |
| 1218 | |
| 1219 | /** |
| 1220 | * @see Walker::$db_fields |
| 1221 | * @since 2.1.0 |
| 1222 | * @todo Decouple this |
| 1223 | * @var array |
| 1224 | */ |
| 1225 | var $db_fields = array ('parent' => 'post_parent', 'id' => 'ID'); |
| 1226 | |
| 1227 | /** |
| 1228 | * @see Walker::start_el() |
| 1229 | * @since 2.1.0 |
| 1230 | * |
| 1231 | * @param string $output Passed by reference. Used to append additional content. |
| 1232 | * @param object $page Page data object. |
| 1233 | * @param int $depth Depth of page in reference to parent pages. Used for padding. |
| 1234 | * @param array $args Uses 'selected' argument for selected page to set selected HTML attribute for option element. |
| 1235 | */ |
| 1236 | function start_el(&$output, $page, $depth, $args) { |
| 1237 | $pad = str_repeat(' ', $depth * 3); |
| 1238 | |
| 1239 | $output .= "\t<option class=\"level-$depth\" value=\"$page->ID\""; |
| 1240 | if ( $page->ID == $args['selected'] ) |
| 1241 | $output .= ' selected="selected"'; |
| 1242 | $output .= '>'; |
| 1243 | $title = wp_specialchars($page->post_title); |
| 1244 | $output .= "$pad$title"; |
| 1245 | $output .= "</option>\n"; |
| 1246 | } |
| 1247 | } |
| 1248 | |
| 1249 | /** |
| 1250 | * Create HTML list of categories. |
| 1251 | * |
| 1252 | * @package WordPress |
| 1253 | * @since 2.1.0 |
| 1254 | * @uses Walker |
| 1255 | */ |
| 1256 | class Walker_Category extends Walker { |
| 1257 | /** |
| 1258 | * @see Walker::$tree_type |
| 1259 | * @since 2.1.0 |
| 1260 | * @var string |
| 1261 | */ |
| 1262 | var $tree_type = 'category'; |
| 1263 | |
| 1264 | /** |
| 1265 | * @see Walker::$db_fields |
| 1266 | * @since 2.1.0 |
| 1267 | * @todo Decouple this |
| 1268 | * @var array |
| 1269 | */ |
| 1270 | var $db_fields = array ('parent' => 'parent', 'id' => 'term_id'); |
| 1271 | |
| 1272 | /** |
| 1273 | * @see Walker::start_lvl() |
| 1274 | * @since 2.1.0 |
| 1275 | * |
| 1276 | * @param string $output Passed by reference. Used to append additional content. |
| 1277 | * @param int $depth Depth of category. Used for tab indentation. |
| 1278 | * @param array $args Will only append content if style argument value is 'list'. |
| 1279 | */ |
| 1280 | function start_lvl(&$output, $depth, $args) { |
| 1281 | if ( 'list' != $args['style'] ) |
| 1282 | return; |
| 1283 | |
| 1284 | $indent = str_repeat("\t", $depth); |
| 1285 | $output .= "$indent<ul class='children'>\n"; |
| 1286 | } |
| 1287 | |
| 1288 | /** |
| 1289 | * @see Walker::end_lvl() |
| 1290 | * @since 2.1.0 |
| 1291 | * |
| 1292 | * @param string $output Passed by reference. Used to append additional content. |
| 1293 | * @param int $depth Depth of category. Used for tab indentation. |
| 1294 | * @param array $args Will only append content if style argument value is 'list'. |
| 1295 | */ |
| 1296 | function end_lvl(&$output, $depth, $args) { |
| 1297 | if ( 'list' != $args['style'] ) |
| 1298 | return; |
| 1299 | |
| 1300 | $indent = str_repeat("\t", $depth); |
| 1301 | $output .= "$indent</ul>\n"; |
| 1302 | } |
| 1303 | |
| 1304 | /** |
| 1305 | * @see Walker::start_el() |
| 1306 | * @since 2.1.0 |
| 1307 | * |
| 1308 | * @param string $output Passed by reference. Used to append additional content. |
| 1309 | * @param object $category Category data object. |
| 1310 | * @param int $depth Depth of category in reference to parents. |
| 1311 | * @param array $args |
| 1312 | */ |
| 1313 | function start_el(&$output, $category, $depth, $args) { |
| 1314 | extract($args); |
| 1315 | |
| 1316 | $cat_name = attribute_escape( $category->name); |
| 1317 | $cat_name = apply_filters( 'list_cats', $cat_name, $category ); |
| 1318 | $link = '<a href="' . get_category_link( $category->term_id ) . '" '; |
| 1319 | if ( $use_desc_for_title == 0 || empty($category->description) ) |
| 1320 | $link .= 'title="' . sprintf(__( 'View all posts filed under %s' ), $cat_name) . '"'; |
| 1321 | else |
| 1322 | $link .= 'title="' . attribute_escape( apply_filters( 'category_description', $category->description, $category )) . '"'; |
| 1323 | $link .= '>'; |
| 1324 | $link .= $cat_name . '</a>'; |
| 1325 | |
| 1326 | if ( (! empty($feed_image)) || (! empty($feed)) ) { |
| 1327 | $link .= ' '; |
| 1328 | |
| 1329 | if ( empty($feed_image) ) |
| 1330 | $link .= '('; |
| 1331 | |
| 1332 | $link .= '<a href="' . get_category_feed_link($category->term_id, $feed_type) . '"'; |
| 1333 | |
| 1334 | if ( empty($feed) ) |
| 1335 | $alt = ' alt="' . sprintf(__( 'Feed for all posts filed under %s' ), $cat_name ) . '"'; |
| 1336 | else { |
| 1337 | $title = ' title="' . $feed . '"'; |
| 1338 | $alt = ' alt="' . $feed . '"'; |
| 1339 | $name = $feed; |
| 1340 | $link .= $title; |
| 1341 | } |
| 1342 | |
| 1343 | $link .= '>'; |
| 1344 | |
| 1345 | if ( empty($feed_image) ) |
| 1346 | $link .= $name; |
| 1347 | else |
| 1348 | $link .= "<img src='$feed_image'$alt$title" . ' />'; |
| 1349 | $link .= '</a>'; |
| 1350 | if ( empty($feed_image) ) |
| 1351 | $link .= ')'; |
| 1352 | } |
| 1353 | |
| 1354 | if ( isset($show_count) && $show_count ) |
| 1355 | $link .= ' (' . intval($category->count) . ')'; |
| 1356 | |
| 1357 | if ( isset($show_date) && $show_date ) { |
| 1358 | $link .= ' ' . gmdate('Y-m-d', $category->last_update_timestamp); |
| 1359 | } |
| 1360 | |
| 1361 | if ( isset($current_category) && $current_category ) |
| 1362 | $_current_category = get_category( $current_category ); |
| 1363 | |
| 1364 | if ( 'list' == $args['style'] ) { |
| 1365 | $output .= "\t<li"; |
| 1366 | $class = 'cat-item cat-item-'.$category->term_id; |
| 1367 | if ( isset($current_category) && $current_category && ($category->term_id == $current_category) ) |
| 1368 | $class .= ' current-cat'; |
| 1369 | elseif ( isset($_current_category) && $_current_category && ($category->term_id == $_current_category->parent) ) |
| 1370 | $class .= ' current-cat-parent'; |
| 1371 | $output .= ' class="'.$class.'"'; |
| 1372 | $output .= ">$link\n"; |
| 1373 | } else { |
| 1374 | $output .= "\t$link<br />\n"; |
| 1375 | } |
| 1376 | } |
| 1377 | |
| 1378 | /** |
| 1379 | * @see Walker::end_el() |
| 1380 | * @since 2.1.0 |
| 1381 | * |
| 1382 | * @param string $output Passed by reference. Used to append additional content. |
| 1383 | * @param object $page Not used. |
| 1384 | * @param int $depth Depth of category. Not used. |
| 1385 | * @param array $args Only uses 'list' for whether should append to output. |
| 1386 | */ |
| 1387 | function end_el(&$output, $page, $depth, $args) { |
| 1388 | if ( 'list' != $args['style'] ) |
| 1389 | return; |
| 1390 | |
| 1391 | $output .= "</li>\n"; |
| 1392 | } |
| 1393 | |
| 1394 | } |
| 1395 | |
| 1396 | /** |
| 1397 | * Create HTML dropdown list of Categories. |
| 1398 | * |
| 1399 | * @package WordPress |
| 1400 | * @since 2.1.0 |
| 1401 | * @uses Walker |
| 1402 | */ |
| 1403 | class Walker_CategoryDropdown extends Walker { |
| 1404 | /** |
| 1405 | * @see Walker::$tree_type |
| 1406 | * @since 2.1.0 |
| 1407 | * @var string |
| 1408 | */ |
| 1409 | var $tree_type = 'category'; |
| 1410 | |
| 1411 | /** |
| 1412 | * @see Walker::$db_fields |
| 1413 | * @since 2.1.0 |
| 1414 | * @todo Decouple this |
| 1415 | * @var array |
| 1416 | */ |
| 1417 | var $db_fields = array ('parent' => 'parent', 'id' => 'term_id'); |
| 1418 | |
| 1419 | /** |
| 1420 | * @see Walker::start_el() |
| 1421 | * @since 2.1.0 |
| 1422 | * |
| 1423 | * @param string $output Passed by reference. Used to append additional content. |
| 1424 | * @param object $category Category data object. |
| 1425 | * @param int $depth Depth of category. Used for padding. |
| 1426 | * @param array $args Uses 'selected', 'show_count', and 'show_last_update' keys, if they exist. |
| 1427 | */ |
| 1428 | function start_el(&$output, $category, $depth, $args) { |
| 1429 | $pad = str_repeat(' ', $depth * 3); |
| 1430 | |
| 1431 | $cat_name = apply_filters('list_cats', $category->name, $category); |
| 1432 | $output .= "\t<option class=\"level-$depth\" value=\"".$category->term_id."\""; |
| 1433 | if ( $category->term_id == $args['selected'] ) |
| 1434 | $output .= ' selected="selected"'; |
| 1435 | $output .= '>'; |
| 1436 | $output .= $pad.$cat_name; |
| 1437 | if ( $args['show_count'] ) |
| 1438 | $output .= ' ('. $category->count .')'; |
| 1439 | if ( $args['show_last_update'] ) { |
| 1440 | $format = 'Y-m-d'; |
| 1441 | $output .= ' ' . gmdate($format, $category->last_update_timestamp); |
| 1442 | } |
| 1443 | $output .= "</option>\n"; |
| 1444 | } |
| 1445 | } |
| 1446 | |
| 1447 | /** |
| 1448 | * Send XML response back to AJAX request. |
| 1449 | * |
| 1450 | * @package WordPress |
| 1451 | * @since 2.1.0 |
| 1452 | */ |
| 1453 | class WP_Ajax_Response { |
| 1454 | /** |
| 1455 | * Store XML responses to send. |
| 1456 | * |
| 1457 | * @since 2.1.0 |
| 1458 | * @var array |
| 1459 | * @access private |
| 1460 | */ |
| 1461 | var $responses = array(); |
| 1462 | |
| 1463 | /** |
| 1464 | * PHP4 Constructor - Passes args to {@link WP_Ajax_Response::add()}. |
| 1465 | * |
| 1466 | * @since 2.1.0 |
| 1467 | * @see WP_Ajax_Response::add() |
| 1468 | * |
| 1469 | * @param string|array $args Optional. Will be passed to add() method. |
| 1470 | * @return WP_Ajax_Response |
| 1471 | */ |
| 1472 | function WP_Ajax_Response( $args = '' ) { |
| 1473 | if ( !empty($args) ) |
| 1474 | $this->add($args); |
| 1475 | } |
| 1476 | |
| 1477 | /** |
| 1478 | * Append to XML response based on given arguments. |
| 1479 | * |
| 1480 | * The arguments that can be passed in the $args parameter are below. It is |
| 1481 | * also possible to pass a WP_Error object in either the 'id' or 'data' |
| 1482 | * argument. The parameter isn't actually optional, content should be given |
| 1483 | * in order to send the correct response. |
| 1484 | * |
| 1485 | * 'what' argument is a string that is the XMLRPC response type. |
| 1486 | * 'action' argument is a boolean or string that acts like a nonce. |
| 1487 | * 'id' argument can be WP_Error or an integer. |
| 1488 | * 'old_id' argument is false by default or an integer of the previous ID. |
| 1489 | * 'position' argument is an integer or a string with -1 = top, 1 = bottom, |
| 1490 | * html ID = after, -html ID = before. |
| 1491 | * 'data' argument is a string with the content or message. |
| 1492 | * 'supplemental' argument is an array of strings that will be children of |
| 1493 | * the supplemental element. |
| 1494 | * |
| 1495 | * @since 2.1.0 |
| 1496 | * |
| 1497 | * @param string|array $args Override defaults. |
| 1498 | * @return string XML response. |
| 1499 | */ |
| 1500 | function add( $args = '' ) { |
| 1501 | $defaults = array( |
| 1502 | 'what' => 'object', 'action' => false, |
| 1503 | 'id' => '0', 'old_id' => false, |
| 1504 | 'position' => 1, |
| 1505 | 'data' => '', 'supplemental' => array() |
| 1506 | ); |
| 1507 | |
| 1508 | $r = wp_parse_args( $args, $defaults ); |
| 1509 | extract( $r, EXTR_SKIP ); |
| 1510 | $position = preg_replace( '/[^a-z0-9:_-]/i', '', $position ); |
| 1511 | |
| 1512 | if ( is_wp_error($id) ) { |
| 1513 | $data = $id; |
| 1514 | $id = 0; |
| 1515 | } |
| 1516 | |
| 1517 | $response = ''; |
| 1518 | if ( is_wp_error($data) ) { |
| 1519 | foreach ( (array) $data->get_error_codes() as $code ) { |
| 1520 | $response .= "<wp_error code='$code'><![CDATA[" . $data->get_error_message($code) . "]]></wp_error>"; |
| 1521 | if ( !$error_data = $data->get_error_data($code) ) |
| 1522 | continue; |
| 1523 | $class = ''; |
| 1524 | if ( is_object($error_data) ) { |
| 1525 | $class = ' class="' . get_class($error_data) . '"'; |
| 1526 | $error_data = get_object_vars($error_data); |
| 1527 | } |
| 1528 | |
| 1529 | $response .= "<wp_error_data code='$code'$class>"; |
| 1530 | |
| 1531 | if ( is_scalar($error_data) ) { |
| 1532 | $response .= "<![CDATA[$error_data]]>"; |
| 1533 | } elseif ( is_array($error_data) ) { |
| 1534 | foreach ( $error_data as $k => $v ) |
| 1535 | $response .= "<$k><![CDATA[$v]]></$k>"; |
| 1536 | } |
| 1537 | |
| 1538 | $response .= "</wp_error_data>"; |
| 1539 | } |
| 1540 | } else { |
| 1541 | $response = "<response_data><![CDATA[$data]]></response_data>"; |
| 1542 | } |
| 1543 | |
| 1544 | $s = ''; |
| 1545 | if ( is_array($supplemental) ) { |
| 1546 | foreach ( $supplemental as $k => $v ) |
| 1547 | $s .= "<$k><![CDATA[$v]]></$k>"; |
| 1548 | $s = "<supplemental>$s</supplemental>"; |
| 1549 | } |
| 1550 | |
| 1551 | if ( false === $action ) |
| 1552 | $action = $_POST['action']; |
| 1553 | |
| 1554 | $x = ''; |
| 1555 | $x .= "<response action='{$action}_$id'>"; // The action attribute in the xml output is formatted like a nonce action |
| 1556 | $x .= "<$what id='$id' " . ( false === $old_id ? '' : "old_id='$old_id' " ) . "position='$position'>"; |
| 1557 | $x .= $response; |
| 1558 | $x .= $s; |
| 1559 | $x .= "</$what>"; |
| 1560 | $x .= "</response>"; |
| 1561 | |
| 1562 | $this->responses[] = $x; |
| 1563 | return $x; |
| 1564 | } |
| 1565 | |
| 1566 | /** |
| 1567 | * Display XML formatted responses. |
| 1568 | * |
| 1569 | * Sets the content type header to text/xml. |
| 1570 | * |
| 1571 | * @since 2.1.0 |
| 1572 | */ |
| 1573 | function send() { |
| 1574 | header('Content-Type: text/xml'); |
| 1575 | echo "<?xml version='1.0' standalone='yes'?><wp_ajax>"; |
| 1576 | foreach ( (array) $this->responses as $response ) |
| 1577 | echo $response; |
| 1578 | echo '</wp_ajax>'; |
| 1579 | die(); |
| 1580 | } |
| 1581 | } |
| 1582 | |
| 1583 | ?> |