Projects : mp-wp : mp-wp_genesis
| 1 | <?php |
| 2 | |
| 3 | |
| 4 | /** |
| 5 | * WordPress DB Class |
| 6 | * |
| 7 | * Original code from {@link http://php.justinvincent.com Justin Vincent (justin@visunet.ie)} |
| 8 | * |
| 9 | * @package WordPress |
| 10 | * @subpackage Database |
| 11 | * @since 0.71 |
| 12 | */ |
| 13 | |
| 14 | /** |
| 15 | * @since 0.71 |
| 16 | */ |
| 17 | define('EZSQL_VERSION', 'WP1.25'); |
| 18 | |
| 19 | /** |
| 20 | * @since 0.71 |
| 21 | */ |
| 22 | define('OBJECT', 'OBJECT', true); |
| 23 | |
| 24 | /** |
| 25 | * @since {@internal Version Unknown}} |
| 26 | */ |
| 27 | define('OBJECT_K', 'OBJECT_K', false); |
| 28 | |
| 29 | /** |
| 30 | * @since 0.71 |
| 31 | */ |
| 32 | define('ARRAY_A', 'ARRAY_A', false); |
| 33 | |
| 34 | /** |
| 35 | * @since 0.71 |
| 36 | */ |
| 37 | define('ARRAY_N', 'ARRAY_N', false); |
| 38 | |
| 39 | /** |
| 40 | * WordPress Database Access Abstraction Object |
| 41 | * |
| 42 | * It is possible to replace this class with your own |
| 43 | * by setting the $wpdb global variable in wp-content/db.php |
| 44 | * file with your class. You can name it wpdb also, since |
| 45 | * this file will not be included, if the other file is |
| 46 | * available. |
| 47 | * |
| 48 | * @link http://codex.wordpress.org/Function_Reference/wpdb_Class |
| 49 | * |
| 50 | * @package WordPress |
| 51 | * @subpackage Database |
| 52 | * @since 0.71 |
| 53 | * @final |
| 54 | */ |
| 55 | class wpdb { |
| 56 | |
| 57 | /** |
| 58 | * Whether to show SQL/DB errors |
| 59 | * |
| 60 | * @since 0.71 |
| 61 | * @access private |
| 62 | * @var bool |
| 63 | */ |
| 64 | var $show_errors = false; |
| 65 | |
| 66 | /** |
| 67 | * Whether to suppress errors during the DB bootstrapping. |
| 68 | * |
| 69 | * @access private |
| 70 | * @since {@internal Version Unknown}} |
| 71 | * @var bool |
| 72 | */ |
| 73 | var $suppress_errors = false; |
| 74 | |
| 75 | /** |
| 76 | * The last error during query. |
| 77 | * |
| 78 | * @since {@internal Version Unknown}} |
| 79 | * @var string |
| 80 | */ |
| 81 | var $last_error = ''; |
| 82 | |
| 83 | /** |
| 84 | * Amount of queries made |
| 85 | * |
| 86 | * @since 1.2.0 |
| 87 | * @access private |
| 88 | * @var int |
| 89 | */ |
| 90 | var $num_queries = 0; |
| 91 | |
| 92 | /** |
| 93 | * Saved result of the last query made |
| 94 | * |
| 95 | * @since 1.2.0 |
| 96 | * @access private |
| 97 | * @var array |
| 98 | */ |
| 99 | var $last_query; |
| 100 | |
| 101 | /** |
| 102 | * Saved info on the table column |
| 103 | * |
| 104 | * @since 1.2.0 |
| 105 | * @access private |
| 106 | * @var array |
| 107 | */ |
| 108 | var $col_info; |
| 109 | |
| 110 | /** |
| 111 | * Saved queries that were executed |
| 112 | * |
| 113 | * @since 1.5.0 |
| 114 | * @access private |
| 115 | * @var array |
| 116 | */ |
| 117 | var $queries; |
| 118 | |
| 119 | /** |
| 120 | * WordPress table prefix |
| 121 | * |
| 122 | * You can set this to have multiple WordPress installations |
| 123 | * in a single database. The second reason is for possible |
| 124 | * security precautions. |
| 125 | * |
| 126 | * @since 0.71 |
| 127 | * @access private |
| 128 | * @var string |
| 129 | */ |
| 130 | var $prefix = ''; |
| 131 | |
| 132 | /** |
| 133 | * Whether the database queries are ready to start executing. |
| 134 | * |
| 135 | * @since 2.5.0 |
| 136 | * @access private |
| 137 | * @var bool |
| 138 | */ |
| 139 | var $ready = false; |
| 140 | |
| 141 | /** |
| 142 | * WordPress Posts table |
| 143 | * |
| 144 | * @since 1.5.0 |
| 145 | * @access public |
| 146 | * @var string |
| 147 | */ |
| 148 | var $posts; |
| 149 | |
| 150 | /** |
| 151 | * WordPress Users table |
| 152 | * |
| 153 | * @since 1.5.0 |
| 154 | * @access public |
| 155 | * @var string |
| 156 | */ |
| 157 | var $users; |
| 158 | |
| 159 | /** |
| 160 | * WordPress Categories table |
| 161 | * |
| 162 | * @since 1.5.0 |
| 163 | * @access public |
| 164 | * @var string |
| 165 | */ |
| 166 | var $categories; |
| 167 | |
| 168 | /** |
| 169 | * WordPress Post to Category table |
| 170 | * |
| 171 | * @since 1.5.0 |
| 172 | * @access public |
| 173 | * @var string |
| 174 | */ |
| 175 | var $post2cat; |
| 176 | |
| 177 | /** |
| 178 | * WordPress Comments table |
| 179 | * |
| 180 | * @since 1.5.0 |
| 181 | * @access public |
| 182 | * @var string |
| 183 | */ |
| 184 | var $comments; |
| 185 | |
| 186 | /** |
| 187 | * WordPress Links table |
| 188 | * |
| 189 | * @since 1.5.0 |
| 190 | * @access public |
| 191 | * @var string |
| 192 | */ |
| 193 | var $links; |
| 194 | |
| 195 | /** |
| 196 | * WordPress Options table |
| 197 | * |
| 198 | * @since 1.5.0 |
| 199 | * @access public |
| 200 | * @var string |
| 201 | */ |
| 202 | var $options; |
| 203 | |
| 204 | /** |
| 205 | * WordPress Post Metadata table |
| 206 | * |
| 207 | * @since {@internal Version Unknown}} |
| 208 | * @access public |
| 209 | * @var string |
| 210 | */ |
| 211 | var $postmeta; |
| 212 | |
| 213 | /** |
| 214 | * WordPress User Metadata table |
| 215 | * |
| 216 | * @since 2.3.0 |
| 217 | * @access public |
| 218 | * @var string |
| 219 | */ |
| 220 | var $usermeta; |
| 221 | |
| 222 | /** |
| 223 | * WordPress Terms table |
| 224 | * |
| 225 | * @since 2.3.0 |
| 226 | * @access public |
| 227 | * @var string |
| 228 | */ |
| 229 | var $terms; |
| 230 | |
| 231 | /** |
| 232 | * WordPress Term Taxonomy table |
| 233 | * |
| 234 | * @since 2.3.0 |
| 235 | * @access public |
| 236 | * @var string |
| 237 | */ |
| 238 | var $term_taxonomy; |
| 239 | |
| 240 | /** |
| 241 | * WordPress Term Relationships table |
| 242 | * |
| 243 | * @since 2.3.0 |
| 244 | * @access public |
| 245 | * @var string |
| 246 | */ |
| 247 | var $term_relationships; |
| 248 | |
| 249 | /** |
| 250 | * List of WordPress tables |
| 251 | * |
| 252 | * @since {@internal Version Unknown}} |
| 253 | * @access private |
| 254 | * @var array |
| 255 | */ |
| 256 | var $tables = array('users', 'usermeta', 'posts', 'categories', 'post2cat', 'comments', 'links', 'link2cat', 'options', |
| 257 | 'postmeta', 'terms', 'term_taxonomy', 'term_relationships'); |
| 258 | |
| 259 | /** |
| 260 | * Database table columns charset |
| 261 | * |
| 262 | * @since 2.2.0 |
| 263 | * @access public |
| 264 | * @var string |
| 265 | */ |
| 266 | var $charset; |
| 267 | |
| 268 | /** |
| 269 | * Database table columns collate |
| 270 | * |
| 271 | * @since 2.2.0 |
| 272 | * @access public |
| 273 | * @var string |
| 274 | */ |
| 275 | var $collate; |
| 276 | |
| 277 | /** |
| 278 | * Connects to the database server and selects a database |
| 279 | * |
| 280 | * PHP4 compatibility layer for calling the PHP5 constructor. |
| 281 | * |
| 282 | * @uses wpdb::__construct() Passes parameters and returns result |
| 283 | * @since 0.71 |
| 284 | * |
| 285 | * @param string $dbuser MySQL database user |
| 286 | * @param string $dbpassword MySQL database password |
| 287 | * @param string $dbname MySQL database name |
| 288 | * @param string $dbhost MySQL database host |
| 289 | */ |
| 290 | function wpdb($dbuser, $dbpassword, $dbname, $dbhost) { |
| 291 | return $this->__construct($dbuser, $dbpassword, $dbname, $dbhost); |
| 292 | } |
| 293 | |
| 294 | /** |
| 295 | * Connects to the database server and selects a database |
| 296 | * |
| 297 | * PHP5 style constructor for compatibility with PHP5. Does |
| 298 | * the actual setting up of the class properties and connection |
| 299 | * to the database. |
| 300 | * |
| 301 | * @since 2.0.8 |
| 302 | * |
| 303 | * @param string $dbuser MySQL database user |
| 304 | * @param string $dbpassword MySQL database password |
| 305 | * @param string $dbname MySQL database name |
| 306 | * @param string $dbhost MySQL database host |
| 307 | */ |
| 308 | function __construct($dbuser, $dbpassword, $dbname, $dbhost) { |
| 309 | register_shutdown_function(array(&$this, "__destruct")); |
| 310 | |
| 311 | if ( defined('WP_DEBUG') and WP_DEBUG == true ) |
| 312 | $this->show_errors(); |
| 313 | |
| 314 | if ( defined('DB_CHARSET') ) |
| 315 | $this->charset = DB_CHARSET; |
| 316 | |
| 317 | if ( defined('DB_COLLATE') ) |
| 318 | $this->collate = DB_COLLATE; |
| 319 | |
| 320 | $this->dbh = @mysql_connect($dbhost, $dbuser, $dbpassword, true); |
| 321 | if (!$this->dbh) { |
| 322 | $this->bail(sprintf(/*WP_I18N_DB_CONN_ERROR*/" |
| 323 | <h1>Error establishing a database connection</h1> |
| 324 | <p>This either means that the username and password information in your <code>wp-config.php</code> file is incorrect or we can't contact the database server at <code>%s</code>. This could mean your host's database server is down.</p> |
| 325 | <ul> |
| 326 | <li>Are you sure you have the correct username and password?</li> |
| 327 | <li>Are you sure that you have typed the correct hostname?</li> |
| 328 | <li>Are you sure that the database server is running?</li> |
| 329 | </ul> |
| 330 | <p>If you're unsure what these terms mean you should probably contact your host. If you still need help you can always visit the <a href='http://wordpress.org/support/'>WordPress Support Forums</a>.</p> |
| 331 | "/*/WP_I18N_DB_CONN_ERROR*/, $dbhost)); |
| 332 | return; |
| 333 | } |
| 334 | |
| 335 | $this->ready = true; |
| 336 | |
| 337 | if ( $this->has_cap( 'collation' ) ) { |
| 338 | $collation_query = ''; |
| 339 | if ( !empty($this->charset) ) { |
| 340 | $collation_query = "SET NAMES '{$this->charset}'"; |
| 341 | if (!empty($this->collate) ) |
| 342 | $collation_query .= " COLLATE '{$this->collate}'"; |
| 343 | } |
| 344 | |
| 345 | if ( !empty($collation_query) ) |
| 346 | $this->query($collation_query); |
| 347 | |
| 348 | } |
| 349 | |
| 350 | $this->select($dbname); |
| 351 | } |
| 352 | |
| 353 | /** |
| 354 | * PHP5 style destructor and will run when database object is destroyed. |
| 355 | * |
| 356 | * @since 2.0.8 |
| 357 | * |
| 358 | * @return bool Always true |
| 359 | */ |
| 360 | function __destruct() { |
| 361 | return true; |
| 362 | } |
| 363 | |
| 364 | /** |
| 365 | * Sets the table prefix for the WordPress tables. |
| 366 | * |
| 367 | * Also allows for the CUSTOM_USER_TABLE and CUSTOM_USER_META_TABLE to |
| 368 | * override the WordPress users and usersmeta tables. |
| 369 | * |
| 370 | * @since 2.5.0 |
| 371 | * |
| 372 | * @param string $prefix Alphanumeric name for the new prefix. |
| 373 | * @return string Old prefix |
| 374 | */ |
| 375 | function set_prefix($prefix) { |
| 376 | |
| 377 | if ( preg_match('|[^a-z0-9_]|i', $prefix) ) |
| 378 | return new WP_Error('invalid_db_prefix', /*WP_I18N_DB_BAD_PREFIX*/'Invalid database prefix'/*/WP_I18N_DB_BAD_PREFIX*/); |
| 379 | |
| 380 | $old_prefix = $this->prefix; |
| 381 | $this->prefix = $prefix; |
| 382 | |
| 383 | foreach ( (array) $this->tables as $table ) |
| 384 | $this->$table = $this->prefix . $table; |
| 385 | |
| 386 | if ( defined('CUSTOM_USER_TABLE') ) |
| 387 | $this->users = CUSTOM_USER_TABLE; |
| 388 | |
| 389 | if ( defined('CUSTOM_USER_META_TABLE') ) |
| 390 | $this->usermeta = CUSTOM_USER_META_TABLE; |
| 391 | |
| 392 | return $old_prefix; |
| 393 | } |
| 394 | |
| 395 | /** |
| 396 | * Selects a database using the current database connection. |
| 397 | * |
| 398 | * The database name will be changed based on the current database |
| 399 | * connection. On failure, the execution will bail and display an DB error. |
| 400 | * |
| 401 | * @since 0.71 |
| 402 | * |
| 403 | * @param string $db MySQL database name |
| 404 | * @return null Always null. |
| 405 | */ |
| 406 | function select($db) { |
| 407 | if (!@mysql_select_db($db, $this->dbh)) { |
| 408 | $this->ready = false; |
| 409 | $this->bail(sprintf(/*WP_I18N_DB_SELECT_DB*/' |
| 410 | <h1>Can’t select database</h1> |
| 411 | <p>We were able to connect to the database server (which means your username and password is okay) but not able to select the <code>%1$s</code> database.</p> |
| 412 | <ul> |
| 413 | <li>Are you sure it exists?</li> |
| 414 | <li>Does the user <code>%2$s</code> have permission to use the <code>%1$s</code> database?</li> |
| 415 | <li>On some systems the name of your database is prefixed with your username, so it would be like <code>username_%1$s</code>. Could that be the problem?</li> |
| 416 | </ul> |
| 417 | <p>If you don\'t know how to setup a database you should <strong>contact your host</strong>. If all else fails you may find help at the <a href="http://wordpress.org/support/">WordPress Support Forums</a>.</p>'/*/WP_I18N_DB_SELECT_DB*/, $db, DB_USER)); |
| 418 | return; |
| 419 | } |
| 420 | } |
| 421 | |
| 422 | /** |
| 423 | * Escapes content for insertion into the database, for security |
| 424 | * |
| 425 | * @since 0.71 |
| 426 | * |
| 427 | * @param string $string |
| 428 | * @return string query safe string |
| 429 | */ |
| 430 | function escape($string) { |
| 431 | return addslashes( $string ); |
| 432 | // Disable rest for now, causing problems |
| 433 | /* |
| 434 | if( !$this->dbh || version_compare( phpversion(), '4.3.0' ) == '-1' ) |
| 435 | return mysql_escape_string( $string ); |
| 436 | else |
| 437 | return mysql_real_escape_string( $string, $this->dbh ); |
| 438 | */ |
| 439 | } |
| 440 | |
| 441 | /** |
| 442 | * Escapes content by reference for insertion into the database, for security |
| 443 | * |
| 444 | * @since 2.3.0 |
| 445 | * |
| 446 | * @param string $s |
| 447 | */ |
| 448 | function escape_by_ref(&$s) { |
| 449 | $s = $this->escape($s); |
| 450 | } |
| 451 | |
| 452 | /** |
| 453 | * Prepares a SQL query for safe use, using sprintf() syntax. |
| 454 | * |
| 455 | * @link http://php.net/sprintf See for syntax to use for query string. |
| 456 | * @since 2.3.0 |
| 457 | * |
| 458 | * @param null|string $args If string, first parameter must be query statement |
| 459 | * @param mixed $args,... If additional parameters, they will be set inserted into the query. |
| 460 | * @return null|string Sanitized query string |
| 461 | */ |
| 462 | function prepare($args=null) { |
| 463 | if ( is_null( $args ) ) |
| 464 | return; |
| 465 | $args = func_get_args(); |
| 466 | $query = array_shift($args); |
| 467 | $query = str_replace("'%s'", '%s', $query); // in case someone mistakenly already singlequoted it |
| 468 | $query = str_replace('"%s"', '%s', $query); // doublequote unquoting |
| 469 | $query = str_replace('%s', "'%s'", $query); // quote the strings |
| 470 | array_walk($args, array(&$this, 'escape_by_ref')); |
| 471 | return @vsprintf($query, $args); |
| 472 | } |
| 473 | |
| 474 | /** |
| 475 | * Print SQL/DB error. |
| 476 | * |
| 477 | * @since 0.71 |
| 478 | * @global array $EZSQL_ERROR Stores error information of query and error string |
| 479 | * |
| 480 | * @param string $str The error to display |
| 481 | * @return bool False if the showing of errors is disabled. |
| 482 | */ |
| 483 | function print_error($str = '') { |
| 484 | global $EZSQL_ERROR; |
| 485 | |
| 486 | if (!$str) $str = mysql_error($this->dbh); |
| 487 | $EZSQL_ERROR[] = array ('query' => $this->last_query, 'error_str' => $str); |
| 488 | |
| 489 | if ( $this->suppress_errors ) |
| 490 | return false; |
| 491 | |
| 492 | if ( $caller = $this->get_caller() ) |
| 493 | $error_str = sprintf(/*WP_I18N_DB_QUERY_ERROR_FULL*/'WordPress database error %1$s for query %2$s made by %3$s'/*/WP_I18N_DB_QUERY_ERROR_FULL*/, $str, $this->last_query, $caller); |
| 494 | else |
| 495 | $error_str = sprintf(/*WP_I18N_DB_QUERY_ERROR*/'WordPress database error %1$s for query %2$s'/*/WP_I18N_DB_QUERY_ERROR*/, $str, $this->last_query); |
| 496 | |
| 497 | $log_error = true; |
| 498 | if ( ! function_exists('error_log') ) |
| 499 | $log_error = false; |
| 500 | |
| 501 | $log_file = @ini_get('error_log'); |
| 502 | if ( !empty($log_file) && ('syslog' != $log_file) && !@is_writable($log_file) ) |
| 503 | $log_error = false; |
| 504 | |
| 505 | if ( $log_error ) |
| 506 | @error_log($error_str, 0); |
| 507 | |
| 508 | // Is error output turned on or not.. |
| 509 | if ( !$this->show_errors ) |
| 510 | return false; |
| 511 | |
| 512 | $str = htmlspecialchars($str, ENT_QUOTES); |
| 513 | $query = htmlspecialchars($this->last_query, ENT_QUOTES); |
| 514 | |
| 515 | // If there is an error then take note of it |
| 516 | print "<div id='error'> |
| 517 | <p class='wpdberror'><strong>WordPress database error:</strong> [$str]<br /> |
| 518 | <code>$query</code></p> |
| 519 | </div>"; |
| 520 | } |
| 521 | |
| 522 | /** |
| 523 | * Enables showing of database errors. |
| 524 | * |
| 525 | * This function should be used only to enable showing of errors. |
| 526 | * wpdb::hide_errors() should be used instead for hiding of errors. However, |
| 527 | * this function can be used to enable and disable showing of database |
| 528 | * errors. |
| 529 | * |
| 530 | * @since 0.71 |
| 531 | * |
| 532 | * @param bool $show Whether to show or hide errors |
| 533 | * @return bool Old value for showing errors. |
| 534 | */ |
| 535 | function show_errors( $show = true ) { |
| 536 | $errors = $this->show_errors; |
| 537 | $this->show_errors = $show; |
| 538 | return $errors; |
| 539 | } |
| 540 | |
| 541 | /** |
| 542 | * Disables showing of database errors. |
| 543 | * |
| 544 | * @since 0.71 |
| 545 | * |
| 546 | * @return bool Whether showing of errors was active or not |
| 547 | */ |
| 548 | function hide_errors() { |
| 549 | $show = $this->show_errors; |
| 550 | $this->show_errors = false; |
| 551 | return $show; |
| 552 | } |
| 553 | |
| 554 | /** |
| 555 | * Whether to suppress database errors. |
| 556 | * |
| 557 | * @param unknown_type $suppress |
| 558 | * @return unknown |
| 559 | */ |
| 560 | function suppress_errors( $suppress = true ) { |
| 561 | $errors = $this->suppress_errors; |
| 562 | $this->suppress_errors = $suppress; |
| 563 | return $errors; |
| 564 | } |
| 565 | |
| 566 | /** |
| 567 | * Kill cached query results. |
| 568 | * |
| 569 | * @since 0.71 |
| 570 | */ |
| 571 | function flush() { |
| 572 | $this->last_result = array(); |
| 573 | $this->col_info = null; |
| 574 | $this->last_query = null; |
| 575 | } |
| 576 | |
| 577 | /** |
| 578 | * Perform a MySQL database query, using current database connection. |
| 579 | * |
| 580 | * More information can be found on the codex page. |
| 581 | * |
| 582 | * @since 0.71 |
| 583 | * |
| 584 | * @param string $query |
| 585 | * @return unknown |
| 586 | */ |
| 587 | function query($query) { |
| 588 | if ( ! $this->ready ) |
| 589 | return false; |
| 590 | |
| 591 | // filter the query, if filters are available |
| 592 | // NOTE: some queries are made before the plugins have been loaded, and thus cannot be filtered with this method |
| 593 | if ( function_exists('apply_filters') ) |
| 594 | $query = apply_filters('query', $query); |
| 595 | |
| 596 | // initialise return |
| 597 | $return_val = 0; |
| 598 | $this->flush(); |
| 599 | |
| 600 | // Log how the function was called |
| 601 | $this->func_call = "\$db->query(\"$query\")"; |
| 602 | |
| 603 | // Keep track of the last query for debug.. |
| 604 | $this->last_query = $query; |
| 605 | |
| 606 | // Perform the query via std mysql_query function.. |
| 607 | if ( defined('SAVEQUERIES') && SAVEQUERIES ) |
| 608 | $this->timer_start(); |
| 609 | |
| 610 | $this->result = @mysql_query($query, $this->dbh); |
| 611 | ++$this->num_queries; |
| 612 | |
| 613 | if ( defined('SAVEQUERIES') && SAVEQUERIES ) |
| 614 | $this->queries[] = array( $query, $this->timer_stop(), $this->get_caller() ); |
| 615 | |
| 616 | // If there is an error then take note of it.. |
| 617 | if ( $this->last_error = mysql_error($this->dbh) ) { |
| 618 | $this->print_error(); |
| 619 | return false; |
| 620 | } |
| 621 | |
| 622 | if ( preg_match("/^\\s*(insert|delete|update|replace|alter) /i",$query) ) { |
| 623 | $this->rows_affected = mysql_affected_rows($this->dbh); |
| 624 | // Take note of the insert_id |
| 625 | if ( preg_match("/^\\s*(insert|replace) /i",$query) ) { |
| 626 | $this->insert_id = mysql_insert_id($this->dbh); |
| 627 | } |
| 628 | // Return number of rows affected |
| 629 | $return_val = $this->rows_affected; |
| 630 | } else { |
| 631 | $i = 0; |
| 632 | while ($i < @mysql_num_fields($this->result)) { |
| 633 | $this->col_info[$i] = @mysql_fetch_field($this->result); |
| 634 | $i++; |
| 635 | } |
| 636 | $num_rows = 0; |
| 637 | while ( $row = @mysql_fetch_object($this->result) ) { |
| 638 | $this->last_result[$num_rows] = $row; |
| 639 | $num_rows++; |
| 640 | } |
| 641 | |
| 642 | @mysql_free_result($this->result); |
| 643 | |
| 644 | // Log number of rows the query returned |
| 645 | $this->num_rows = $num_rows; |
| 646 | |
| 647 | // Return number of rows selected |
| 648 | $return_val = $this->num_rows; |
| 649 | } |
| 650 | |
| 651 | return $return_val; |
| 652 | } |
| 653 | |
| 654 | /** |
| 655 | * Insert an array of data into a table. |
| 656 | * |
| 657 | * @since 2.5.0 |
| 658 | * |
| 659 | * @param string $table WARNING: not sanitized! |
| 660 | * @param array $data Should not already be SQL-escaped |
| 661 | * @return mixed Results of $this->query() |
| 662 | */ |
| 663 | function insert($table, $data) { |
| 664 | $data = add_magic_quotes($data); |
| 665 | $fields = array_keys($data); |
| 666 | return $this->query("INSERT INTO $table (`" . implode('`,`',$fields) . "`) VALUES ('".implode("','",$data)."')"); |
| 667 | } |
| 668 | |
| 669 | /** |
| 670 | * Update a row in the table with an array of data. |
| 671 | * |
| 672 | * @since 2.5.0 |
| 673 | * |
| 674 | * @param string $table WARNING: not sanitized! |
| 675 | * @param array $data Should not already be SQL-escaped |
| 676 | * @param array $where A named array of WHERE column => value relationships. Multiple member pairs will be joined with ANDs. WARNING: the column names are not currently sanitized! |
| 677 | * @return mixed Results of $this->query() |
| 678 | */ |
| 679 | function update($table, $data, $where){ |
| 680 | $data = add_magic_quotes($data); |
| 681 | $bits = $wheres = array(); |
| 682 | foreach ( (array) array_keys($data) as $k ) |
| 683 | $bits[] = "`$k` = '$data[$k]'"; |
| 684 | |
| 685 | if ( is_array( $where ) ) |
| 686 | foreach ( $where as $c => $v ) |
| 687 | $wheres[] = "$c = '" . $this->escape( $v ) . "'"; |
| 688 | else |
| 689 | return false; |
| 690 | |
| 691 | return $this->query( "UPDATE $table SET " . implode( ', ', $bits ) . ' WHERE ' . implode( ' AND ', $wheres ) ); |
| 692 | } |
| 693 | |
| 694 | /** |
| 695 | * Retrieve one variable from the database. |
| 696 | * |
| 697 | * This combines the functionality of wpdb::get_row() and wpdb::get_col(), |
| 698 | * so both the column and row can be picked. |
| 699 | * |
| 700 | * It is possible to use this function without executing more queries. If |
| 701 | * you already made a query, you can set the $query to 'null' value and just |
| 702 | * retrieve either the column and row of the last query result. |
| 703 | * |
| 704 | * @since 0.71 |
| 705 | * |
| 706 | * @param string $query Can be null as well, for caching |
| 707 | * @param int $x Column num to return |
| 708 | * @param int $y Row num to return |
| 709 | * @return mixed Database query results |
| 710 | */ |
| 711 | function get_var($query=null, $x = 0, $y = 0) { |
| 712 | $this->func_call = "\$db->get_var(\"$query\",$x,$y)"; |
| 713 | if ( $query ) |
| 714 | $this->query($query); |
| 715 | |
| 716 | // Extract var out of cached results based x,y vals |
| 717 | if ( !empty( $this->last_result[$y] ) ) { |
| 718 | $values = array_values(get_object_vars($this->last_result[$y])); |
| 719 | } |
| 720 | |
| 721 | // If there is a value return it else return null |
| 722 | return (isset($values[$x]) && $values[$x]!=='') ? $values[$x] : null; |
| 723 | } |
| 724 | |
| 725 | /** |
| 726 | * Retrieve one row from the database. |
| 727 | * |
| 728 | * @since 0.71 |
| 729 | * |
| 730 | * @param string $query SQL query |
| 731 | * @param string $output ARRAY_A | ARRAY_N | OBJECT |
| 732 | * @param int $y Row num to return |
| 733 | * @return mixed Database query results |
| 734 | */ |
| 735 | function get_row($query = null, $output = OBJECT, $y = 0) { |
| 736 | $this->func_call = "\$db->get_row(\"$query\",$output,$y)"; |
| 737 | if ( $query ) |
| 738 | $this->query($query); |
| 739 | else |
| 740 | return null; |
| 741 | |
| 742 | if ( !isset($this->last_result[$y]) ) |
| 743 | return null; |
| 744 | |
| 745 | if ( $output == OBJECT ) { |
| 746 | return $this->last_result[$y] ? $this->last_result[$y] : null; |
| 747 | } elseif ( $output == ARRAY_A ) { |
| 748 | return $this->last_result[$y] ? get_object_vars($this->last_result[$y]) : null; |
| 749 | } elseif ( $output == ARRAY_N ) { |
| 750 | return $this->last_result[$y] ? array_values(get_object_vars($this->last_result[$y])) : null; |
| 751 | } else { |
| 752 | $this->print_error(/*WP_I18N_DB_GETROW_ERROR*/" \$db->get_row(string query, output type, int offset) -- Output type must be one of: OBJECT, ARRAY_A, ARRAY_N"/*/WP_I18N_DB_GETROW_ERROR*/); |
| 753 | } |
| 754 | } |
| 755 | |
| 756 | /** |
| 757 | * Retrieve one column from the database. |
| 758 | * |
| 759 | * @since 0.71 |
| 760 | * |
| 761 | * @param string $query Can be null as well, for caching |
| 762 | * @param int $x Col num to return. Starts from 0. |
| 763 | * @return array Column results |
| 764 | */ |
| 765 | function get_col($query = null , $x = 0) { |
| 766 | if ( $query ) |
| 767 | $this->query($query); |
| 768 | |
| 769 | $new_array = array(); |
| 770 | // Extract the column values |
| 771 | for ( $i=0; $i < count($this->last_result); $i++ ) { |
| 772 | $new_array[$i] = $this->get_var(null, $x, $i); |
| 773 | } |
| 774 | return $new_array; |
| 775 | } |
| 776 | |
| 777 | /** |
| 778 | * Retrieve an entire result set from the database. |
| 779 | * |
| 780 | * @since 0.71 |
| 781 | * |
| 782 | * @param string|null $query Can also be null to pull from the cache |
| 783 | * @param string $output ARRAY_A | ARRAY_N | OBJECT_K | OBJECT |
| 784 | * @return mixed Database query results |
| 785 | */ |
| 786 | function get_results($query = null, $output = OBJECT) { |
| 787 | $this->func_call = "\$db->get_results(\"$query\", $output)"; |
| 788 | |
| 789 | if ( $query ) |
| 790 | $this->query($query); |
| 791 | else |
| 792 | return null; |
| 793 | |
| 794 | if ( $output == OBJECT ) { |
| 795 | // Return an integer-keyed array of row objects |
| 796 | return $this->last_result; |
| 797 | } elseif ( $output == OBJECT_K ) { |
| 798 | // Return an array of row objects with keys from column 1 |
| 799 | // (Duplicates are discarded) |
| 800 | foreach ( $this->last_result as $row ) { |
| 801 | $key = array_shift( get_object_vars( $row ) ); |
| 802 | if ( !isset( $new_array[ $key ] ) ) |
| 803 | $new_array[ $key ] = $row; |
| 804 | } |
| 805 | return $new_array; |
| 806 | } elseif ( $output == ARRAY_A || $output == ARRAY_N ) { |
| 807 | // Return an integer-keyed array of... |
| 808 | if ( $this->last_result ) { |
| 809 | $i = 0; |
| 810 | foreach( (array) $this->last_result as $row ) { |
| 811 | if ( $output == ARRAY_N ) { |
| 812 | // ...integer-keyed row arrays |
| 813 | $new_array[$i] = array_values( get_object_vars( $row ) ); |
| 814 | } else { |
| 815 | // ...column name-keyed row arrays |
| 816 | $new_array[$i] = get_object_vars( $row ); |
| 817 | } |
| 818 | ++$i; |
| 819 | } |
| 820 | return $new_array; |
| 821 | } |
| 822 | } |
| 823 | } |
| 824 | |
| 825 | /** |
| 826 | * Retrieve column metadata from the last query. |
| 827 | * |
| 828 | * @since 0.71 |
| 829 | * |
| 830 | * @param string $info_type one of name, table, def, max_length, not_null, primary_key, multiple_key, unique_key, numeric, blob, type, unsigned, zerofill |
| 831 | * @param int $col_offset 0: col name. 1: which table the col's in. 2: col's max length. 3: if the col is numeric. 4: col's type |
| 832 | * @return mixed Column Results |
| 833 | */ |
| 834 | function get_col_info($info_type = 'name', $col_offset = -1) { |
| 835 | if ( $this->col_info ) { |
| 836 | if ( $col_offset == -1 ) { |
| 837 | $i = 0; |
| 838 | foreach( (array) $this->col_info as $col ) { |
| 839 | $new_array[$i] = $col->{$info_type}; |
| 840 | $i++; |
| 841 | } |
| 842 | return $new_array; |
| 843 | } else { |
| 844 | return $this->col_info[$col_offset]->{$info_type}; |
| 845 | } |
| 846 | } |
| 847 | } |
| 848 | |
| 849 | /** |
| 850 | * Starts the timer, for debugging purposes. |
| 851 | * |
| 852 | * @since 1.5.0 |
| 853 | * |
| 854 | * @return bool Always returns true |
| 855 | */ |
| 856 | function timer_start() { |
| 857 | $mtime = microtime(); |
| 858 | $mtime = explode(' ', $mtime); |
| 859 | $this->time_start = $mtime[1] + $mtime[0]; |
| 860 | return true; |
| 861 | } |
| 862 | |
| 863 | /** |
| 864 | * Stops the debugging timer. |
| 865 | * |
| 866 | * @since 1.5.0 |
| 867 | * |
| 868 | * @return int Total time spent on the query, in milliseconds |
| 869 | */ |
| 870 | function timer_stop() { |
| 871 | $mtime = microtime(); |
| 872 | $mtime = explode(' ', $mtime); |
| 873 | $time_end = $mtime[1] + $mtime[0]; |
| 874 | $time_total = $time_end - $this->time_start; |
| 875 | return $time_total; |
| 876 | } |
| 877 | |
| 878 | /** |
| 879 | * Wraps fatal errors in a nice header and footer and dies. |
| 880 | * |
| 881 | * @since 1.5.0 |
| 882 | * |
| 883 | * @param string $message |
| 884 | * @return unknown |
| 885 | */ |
| 886 | function bail($message) { |
| 887 | if ( !$this->show_errors ) { |
| 888 | if ( class_exists('WP_Error') ) |
| 889 | $this->error = new WP_Error('500', $message); |
| 890 | else |
| 891 | $this->error = $message; |
| 892 | return false; |
| 893 | } |
| 894 | wp_die($message); |
| 895 | } |
| 896 | |
| 897 | /** |
| 898 | * Whether or not MySQL database is minimal required version. |
| 899 | * |
| 900 | * @since 2.5.0 |
| 901 | * @uses $wp_version |
| 902 | * |
| 903 | * @return WP_Error |
| 904 | */ |
| 905 | function check_database_version() |
| 906 | { |
| 907 | global $wp_version; |
| 908 | // Make sure the server has MySQL 4.0 |
| 909 | if ( version_compare($this->db_version(), '4.0.0', '<') ) |
| 910 | return new WP_Error('database_version',sprintf(__('<strong>ERROR</strong>: WordPress %s requires MySQL 4.0.0 or higher'), $wp_version)); |
| 911 | } |
| 912 | |
| 913 | /** |
| 914 | * Whether of not the database version supports collation. |
| 915 | * |
| 916 | * Called when WordPress is generating the table scheme. |
| 917 | * |
| 918 | * @since 2.5.0 |
| 919 | * |
| 920 | * @return bool True if collation is supported, false if version does not |
| 921 | */ |
| 922 | function supports_collation() |
| 923 | { |
| 924 | return $this->has_cap( 'collation' ); |
| 925 | } |
| 926 | |
| 927 | /** |
| 928 | * Generic function to determine if a database supports a particular feature |
| 929 | * @param string $db_cap the feature |
| 930 | * @param false|string|resource $dbh_or_table the databaese (the current database, the database housing the specified table, or the database of the mysql resource) |
| 931 | * @return bool |
| 932 | */ |
| 933 | function has_cap( $db_cap ) { |
| 934 | $version = $this->db_version(); |
| 935 | |
| 936 | switch ( strtolower( $db_cap ) ) : |
| 937 | case 'collation' : // @since 2.5.0 |
| 938 | case 'group_concat' : // @since 2.7 |
| 939 | case 'subqueries' : // @since 2.7 |
| 940 | return version_compare($version, '4.1', '>='); |
| 941 | break; |
| 942 | endswitch; |
| 943 | |
| 944 | return false; |
| 945 | } |
| 946 | |
| 947 | /** |
| 948 | * Retrieve the name of the function that called wpdb. |
| 949 | * |
| 950 | * Requires PHP 4.3 and searches up the list of functions until it reaches |
| 951 | * the one that would most logically had called this method. |
| 952 | * |
| 953 | * @since 2.5.0 |
| 954 | * |
| 955 | * @return string The name of the calling function |
| 956 | */ |
| 957 | function get_caller() { |
| 958 | // requires PHP 4.3+ |
| 959 | if ( !is_callable('debug_backtrace') ) |
| 960 | return ''; |
| 961 | |
| 962 | $bt = debug_backtrace(); |
| 963 | $caller = array(); |
| 964 | |
| 965 | $bt = array_reverse( $bt ); |
| 966 | foreach ( (array) $bt as $call ) { |
| 967 | if ( @$call['class'] == __CLASS__ ) |
| 968 | continue; |
| 969 | $function = $call['function']; |
| 970 | if ( isset( $call['class'] ) ) |
| 971 | $function = $call['class'] . "->$function"; |
| 972 | $caller[] = $function; |
| 973 | } |
| 974 | $caller = join( ', ', $caller ); |
| 975 | |
| 976 | return $caller; |
| 977 | } |
| 978 | |
| 979 | /** |
| 980 | * The database version number |
| 981 | * @return false|string false on failure, version number on success |
| 982 | */ |
| 983 | function db_version() { |
| 984 | return preg_replace('/[^0-9.].*/', '', mysql_get_server_info( $this->dbh )); |
| 985 | } |
| 986 | } |
| 987 | |
| 988 | if ( ! isset($wpdb) ) { |
| 989 | /** |
| 990 | * WordPress Database Object, if it isn't set already in wp-content/db.php |
| 991 | * @global object $wpdb Creates a new wpdb object based on wp-config.php Constants for the database |
| 992 | * @since 0.71 |
| 993 | */ |
| 994 | $wpdb = new wpdb(DB_USER, DB_PASSWORD, DB_NAME, DB_HOST); |
| 995 | } |
| 996 | ?> |