| commit | author | age | ||
| b076a4 | 1 | <?php |
| T | 2 | // +----------------------------------------------------------------------+ |
| 3 | // | PHP versions 4 and 5 | | |
| 4 | // +----------------------------------------------------------------------+ | |
| 5 | // | Copyright (c) 1998-2004 Manuel Lemos, Tomas V.V.Cox, | | |
| 6 | // | Stig. S. Bakken, Lukas Smith | | |
| 7 | // | All rights reserved. | | |
| 8 | // +----------------------------------------------------------------------+ | |
| 9 | // | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB | | |
| 10 | // | API as well as database abstraction for PHP applications. | | |
| 11 | // | This LICENSE is in the BSD license style. | | |
| 12 | // | | | |
| 13 | // | Redistribution and use in source and binary forms, with or without | | |
| 14 | // | modification, are permitted provided that the following conditions | | |
| 15 | // | are met: | | |
| 16 | // | | | |
| 17 | // | Redistributions of source code must retain the above copyright | | |
| 18 | // | notice, this list of conditions and the following disclaimer. | | |
| 19 | // | | | |
| 20 | // | Redistributions in binary form must reproduce the above copyright | | |
| 21 | // | notice, this list of conditions and the following disclaimer in the | | |
| 22 | // | documentation and/or other materials provided with the distribution. | | |
| 23 | // | | | |
| 24 | // | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, | | |
| 25 | // | Lukas Smith nor the names of his contributors may be used to endorse | | |
| 26 | // | or promote products derived from this software without specific prior| | |
| 27 | // | written permission. | | |
| 28 | // | | | |
| 29 | // | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | | |
| 30 | // | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | | |
| 31 | // | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | | |
| 32 | // | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | | |
| 33 | // | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | | |
| 34 | // | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | | |
| 35 | // | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS| | |
| 36 | // | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | | |
| 37 | // | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | | |
| 38 | // | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY| | |
| 39 | // | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | | |
| 40 | // | POSSIBILITY OF SUCH DAMAGE. | | |
| 41 | // +----------------------------------------------------------------------+ | |
| 42 | // | Author: Lukas Smith <smith@pooteeweet.org> | | |
| 43 | // +----------------------------------------------------------------------+ | |
| 44 | // | |
| 45 | // $Id$ | |
| 46 | // | |
| 47 | ||
| 48 | require_once 'MDB2/Driver/Manager/Common.php'; | |
| 49 | ||
| 50 | /** | |
| 51 | * MDB2 MySQL driver for the management modules | |
| 52 | * | |
| 53 | * @package MDB2 | |
| 54 | * @category Database | |
| 55 | * @author Lukas Smith <smith@pooteeweet.org> | |
| 56 | */ | |
| 57 | class MDB2_Driver_Manager_mysql extends MDB2_Driver_Manager_Common | |
| 58 | { | |
| 59 | // {{{ properties | |
| 60 | var $verified_table_types = array();# | |
| 61 | // }}} | |
| 62 | ||
| 63 | // }}} | |
| 64 | // {{{ _verifyTableType() | |
| 65 | ||
| 66 | /** | |
| 67 | * verify that chosen transactional table hanlder is available in the database | |
| 68 | * | |
| 69 | * @param string $table_type name of the table handler | |
| 70 | * @return mixed MDB2_OK on success, a MDB2 error on failure | |
| 71 | * @access protected | |
| 72 | */ | |
| 73 | function _verifyTableType($table_type) | |
| 74 | { | |
| 75 | $db =& $this->getDBInstance(); | |
| 76 | if (PEAR::isError($db)) { | |
| 77 | return $db; | |
| 78 | } | |
| 79 | ||
| 80 | switch (strtoupper($table_type)) { | |
| 81 | case 'BERKELEYDB': | |
| 82 | case 'BDB': | |
| 83 | $check = array('have_bdb'); | |
| 84 | break; | |
| 85 | case 'INNODB': | |
| 86 | $check = array('have_innobase', 'have_innodb'); | |
| 87 | break; | |
| 88 | case 'GEMINI': | |
| 89 | $check = array('have_gemini'); | |
| 90 | break; | |
| 91 | case 'HEAP': | |
| 92 | case 'ISAM': | |
| 93 | case 'MERGE': | |
| 94 | case 'MRG_MYISAM': | |
| 95 | case 'MYISAM': | |
| 96 | case '': | |
| 97 | return MDB2_OK; | |
| 98 | default: | |
| 99 | return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, | |
| 100 | $table_type.' is not a supported table type'); | |
| 101 | } | |
| 102 | if (isset($this->verified_table_types[$table_type]) | |
| 103 | && $this->verified_table_types[$table_type] == $db->connection | |
| 104 | ) { | |
| 105 | return MDB2_OK; | |
| 106 | } | |
| 107 | $not_supported = false; | |
| 108 | for ($i = 0, $j = count($check); $i < $j; ++$i) { | |
| 109 | $query = 'SHOW VARIABLES LIKE '.$db->quote($check[$i], 'text'); | |
| 110 | $has = $db->queryRow($query, null, MDB2_FETCHMODE_ORDERED); | |
| 111 | if (PEAR::isError($has)) { | |
| 112 | return $has; | |
| 113 | } | |
| 114 | if (is_array($has)) { | |
| 115 | $not_supported = true; | |
| 116 | if ($has[1] == 'YES') { | |
| 117 | $this->verified_table_types[$table_type] = $db->connection; | |
| 118 | return MDB2_OK; | |
| 119 | } | |
| 120 | } | |
| 121 | } | |
| 122 | if ($not_supported) { | |
| 123 | return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, | |
| 124 | $table_type.' is not a supported table type by this MySQL database server'); | |
| 125 | } | |
| 126 | return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, | |
| 127 | 'could not tell if '.$table_type.' is a supported table type'); | |
| 128 | } | |
| 129 | ||
| 130 | // }}} | |
| 131 | // {{{ createDatabase() | |
| 132 | ||
| 133 | /** | |
| 134 | * create a new database | |
| 135 | * | |
| 136 | * @param string $name name of the database that should be created | |
| 137 | * @return mixed MDB2_OK on success, a MDB2 error on failure | |
| 138 | * @access public | |
| 139 | */ | |
| 140 | function createDatabase($name) | |
| 141 | { | |
| 142 | $db =& $this->getDBInstance(); | |
| 143 | if (PEAR::isError($db)) { | |
| 144 | return $db; | |
| 145 | } | |
| 146 | ||
| 147 | $query = 'CREATE DATABASE '.$name; | |
| 148 | $result = $db->query($query); | |
| 149 | if (PEAR::isError($result)) { | |
| 150 | return $result; | |
| 151 | } | |
| 152 | return MDB2_OK; | |
| 153 | } | |
| 154 | ||
| 155 | // }}} | |
| 156 | // {{{ dropDatabase() | |
| 157 | ||
| 158 | /** | |
| 159 | * drop an existing database | |
| 160 | * | |
| 161 | * @param string $name name of the database that should be dropped | |
| 162 | * @return mixed MDB2_OK on success, a MDB2 error on failure | |
| 163 | * @access public | |
| 164 | */ | |
| 165 | function dropDatabase($name) | |
| 166 | { | |
| 167 | $db =& $this->getDBInstance(); | |
| 168 | if (PEAR::isError($db)) { | |
| 169 | return $db; | |
| 170 | } | |
| 171 | ||
| 172 | $query = 'DROP DATABASE '.$name; | |
| 173 | $result = $db->query($query); | |
| 174 | if (PEAR::isError($result)) { | |
| 175 | return $result; | |
| 176 | } | |
| 177 | return MDB2_OK; | |
| 178 | } | |
| 179 | ||
| 180 | // }}} | |
| 181 | // {{{ createTable() | |
| 182 | ||
| 183 | /** | |
| 184 | * create a new table | |
| 185 | * | |
| 186 | * @param string $name Name of the database that should be created | |
| 187 | * @param array $fields Associative array that contains the definition of each field of the new table | |
| 188 | * The indexes of the array entries are the names of the fields of the table an | |
| 189 | * the array entry values are associative arrays like those that are meant to be | |
| 190 | * passed with the field definitions to get[Type]Declaration() functions. | |
| 191 | * | |
| 192 | * Example | |
| 193 | * array( | |
| 194 | * | |
| 195 | * 'id' => array( | |
| 196 | * 'type' => 'integer', | |
| 197 | * 'unsigned' => 1 | |
| 198 | * 'notnull' => 1 | |
| 199 | * 'default' => 0 | |
| 200 | * ), | |
| 201 | * 'name' => array( | |
| 202 | * 'type' => 'text', | |
| 203 | * 'length' => 12 | |
| 204 | * ), | |
| 205 | * 'password' => array( | |
| 206 | * 'type' => 'text', | |
| 207 | * 'length' => 12 | |
| 208 | * ) | |
| 209 | * ); | |
| 210 | * @return mixed MDB2_OK on success, a MDB2 error on failure | |
| 211 | * @access public | |
| 212 | */ | |
| 213 | function createTable($name, $fields) | |
| 214 | { | |
| 215 | $db =& $this->getDBInstance(); | |
| 216 | if (PEAR::isError($db)) { | |
| 217 | return $db; | |
| 218 | } | |
| 219 | ||
| 220 | if (!$name) { | |
| 221 | return $db->raiseError(MDB2_ERROR_CANNOT_CREATE, null, null, | |
| 222 | 'createTable: no valid table name specified'); | |
| 223 | } | |
| 224 | if (empty($fields)) { | |
| 225 | return $db->raiseError(MDB2_ERROR_CANNOT_CREATE, null, null, | |
| 226 | 'createTable: no fields specified for table "'.$name.'"'); | |
| 227 | } | |
| 228 | $verify = $this->_verifyTableType($db->options['default_table_type']); | |
| 229 | if (PEAR::isError($verify)) { | |
| 230 | return $verify; | |
| 231 | } | |
| 232 | $query_fields = $this->getFieldDeclarationList($fields); | |
| 233 | if (PEAR::isError($query_fields)) { | |
| 234 | return $db->raiseError(MDB2_ERROR_CANNOT_CREATE, null, null, | |
| 235 | 'createTable: '.$this->getUserinfo()); | |
| 236 | } | |
| 237 | $query = "CREATE TABLE $name ($query_fields)".(strlen($db->options['default_table_type']) | |
| 238 | ? ' TYPE='.$db->options['default_table_type'] : ''); | |
| 239 | ||
| 240 | return $db->query($query); | |
| 241 | } | |
| 242 | ||
| 243 | // }}} | |
| 244 | // {{{ alterTable() | |
| 245 | ||
| 246 | /** | |
| 247 | * alter an existing table | |
| 248 | * | |
| 249 | * @param string $name name of the table that is intended to be changed. | |
| 250 | * @param array $changes associative array that contains the details of each type | |
| 251 | * of change that is intended to be performed. The types of | |
| 252 | * changes that are currently supported are defined as follows: | |
| 253 | * | |
| 254 | * name | |
| 255 | * | |
| 256 | * New name for the table. | |
| 257 | * | |
| 258 | * add | |
| 259 | * | |
| 260 | * Associative array with the names of fields to be added as | |
| 261 | * indexes of the array. The value of each entry of the array | |
| 262 | * should be set to another associative array with the properties | |
| 263 | * of the fields to be added. The properties of the fields should | |
| 264 | * be the same as defined by the Metabase parser. | |
| 265 | * | |
| 266 | * | |
| 267 | * remove | |
| 268 | * | |
| 269 | * Associative array with the names of fields to be removed as indexes | |
| 270 | * of the array. Currently the values assigned to each entry are ignored. | |
| 271 | * An empty array should be used for future compatibility. | |
| 272 | * | |
| 273 | * rename | |
| 274 | * | |
| 275 | * Associative array with the names of fields to be renamed as indexes | |
| 276 | * of the array. The value of each entry of the array should be set to | |
| 277 | * another associative array with the entry named name with the new | |
| 278 | * field name and the entry named Declaration that is expected to contain | |
| 279 | * the portion of the field declaration already in DBMS specific SQL code | |
| 280 | * as it is used in the CREATE TABLE statement. | |
| 281 | * | |
| 282 | * change | |
| 283 | * | |
| 284 | * Associative array with the names of the fields to be changed as indexes | |
| 285 | * of the array. Keep in mind that if it is intended to change either the | |
| 286 | * name of a field and any other properties, the change array entries | |
| 287 | * should have the new names of the fields as array indexes. | |
| 288 | * | |
| 289 | * The value of each entry of the array should be set to another associative | |
| 290 | * array with the properties of the fields to that are meant to be changed as | |
| 291 | * array entries. These entries should be assigned to the new values of the | |
| 292 | * respective properties. The properties of the fields should be the same | |
| 293 | * as defined by the Metabase parser. | |
| 294 | * | |
| 295 | * Example | |
| 296 | * array( | |
| 297 | * 'name' => 'userlist', | |
| 298 | * 'add' => array( | |
| 299 | * 'quota' => array( | |
| 300 | * 'type' => 'integer', | |
| 301 | * 'unsigned' => 1 | |
| 302 | * ) | |
| 303 | * ), | |
| 304 | * 'remove' => array( | |
| 305 | * 'file_limit' => array(), | |
| 306 | * 'time_limit' => array() | |
| 307 | * ), | |
| 308 | * 'change' => array( | |
| 309 | * 'gender' => array( | |
| 310 | * 'default' => 'M', | |
| 311 | * ) | |
| 312 | * ), | |
| 313 | * 'rename' => array( | |
| 314 | * 'sex' => array( | |
| 315 | * 'name' => 'gender', | |
| 316 | * ) | |
| 317 | * ) | |
| 318 | * ) | |
| 319 | * | |
| 320 | * @param boolean $check indicates whether the function should just check if the DBMS driver | |
| 321 | * can perform the requested table alterations if the value is true or | |
| 322 | * actually perform them otherwise. | |
| 323 | * @access public | |
| 324 | * | |
| 325 | * @return mixed MDB2_OK on success, a MDB2 error on failure | |
| 326 | */ | |
| 327 | function alterTable($name, $changes, $check) | |
| 328 | { | |
| 329 | $db =& $this->getDBInstance(); | |
| 330 | if (PEAR::isError($db)) { | |
| 331 | return $db; | |
| 332 | } | |
| 333 | ||
| 334 | foreach ($changes as $change_name => $change) { | |
| 335 | switch ($change_name) { | |
| 336 | case 'add': | |
| 337 | case 'remove': | |
| 338 | case 'change': | |
| 339 | case 'rename': | |
| 340 | case 'name': | |
| 341 | break; | |
| 342 | default: | |
| 343 | return $db->raiseError(MDB2_ERROR_CANNOT_ALTER, null, null, | |
| 344 | 'alterTable: change type "'.$change_name.'" not yet supported'); | |
| 345 | } | |
| 346 | } | |
| 347 | ||
| 348 | if ($check) { | |
| 349 | return MDB2_OK; | |
| 350 | } | |
| 351 | ||
| 352 | $query = (array_key_exists('name', $changes) ? 'RENAME AS '.$changes['name'] : ''); | |
| 353 | ||
| 354 | if (array_key_exists('add', $changes)) { | |
| 355 | foreach ($changes['add'] as $field_name => $field) { | |
| 356 | $type_declaration = $db->getDeclaration($field['type'], $field_name, $field); | |
| 357 | if (PEAR::isError($type_declaration)) { | |
| 358 | return $err; | |
| 359 | } | |
| 360 | if ($query) { | |
| 361 | $query.= ', '; | |
| 362 | } | |
| 363 | $query.= 'ADD ' . $type_declaration; | |
| 364 | } | |
| 365 | } | |
| 366 | ||
| 367 | if (array_key_exists('remove', $changes)) { | |
| 368 | foreach ($changes['remove'] as $field_name => $field) { | |
| 369 | if ($query) { | |
| 370 | $query.= ', '; | |
| 371 | } | |
| 372 | $query.= 'DROP ' . $field_name; | |
| 373 | } | |
| 374 | } | |
| 375 | ||
| 376 | $rename = array(); | |
| 377 | if (array_key_exists('rename', $changes)) { | |
| 378 | foreach ($changes['rename'] as $field_name => $field) { | |
| 379 | $rename[$field['name']] = $field_name; | |
| 380 | } | |
| 381 | } | |
| 382 | ||
| 383 | if (array_key_exists('change', $changes)) { | |
| 384 | foreach ($changes['change'] as $field_name => $field) { | |
| 385 | if ($query) { | |
| 386 | $query.= ', '; | |
| 387 | } | |
| 388 | if (isset($rename[$field_name])) { | |
| 389 | $old_field_name = $rename[$field_name]; | |
| 390 | unset($rename[$field_name]); | |
| 391 | } else { | |
| 392 | $old_field_name = $field_name; | |
| 393 | } | |
| 394 | $query.= "CHANGE $field_name " . $db->getDeclaration($field['type'], $old_field_name, $field); | |
| 395 | } | |
| 396 | } | |
| 397 | ||
| 398 | if (!empty($rename)) { | |
| 399 | foreach ($rename as $rename_name => $renamed_field) { | |
| 400 | if ($query) { | |
| 401 | $query.= ', '; | |
| 402 | } | |
| 403 | $old_field_name = $renamed_field; | |
| 404 | $field = $changes['rename'][$old_field_name]; | |
| 405 | $query.= 'CHANGE ' . $db->getDeclaration($field['type'], $old_field_name, $field); | |
| 406 | } | |
| 407 | } | |
| 408 | ||
| 409 | if (!$query) { | |
| 410 | return MDB2_OK; | |
| 411 | } | |
| 412 | ||
| 413 | return $db->query("ALTER TABLE $name $query"); | |
| 414 | } | |
| 415 | ||
| 416 | // }}} | |
| 417 | // {{{ listDatabases() | |
| 418 | ||
| 419 | /** | |
| 420 | * list all databases | |
| 421 | * | |
| 422 | * @return mixed data array on success, a MDB2 error on failure | |
| 423 | * @access public | |
| 424 | */ | |
| 425 | function listDatabases() | |
| 426 | { | |
| 427 | $db =& $this->getDBInstance(); | |
| 428 | if (PEAR::isError($db)) { | |
| 429 | return $db; | |
| 430 | } | |
| 431 | ||
| 432 | $databases = $db->queryCol('SHOW DATABASES'); | |
| 433 | return $databases; | |
| 434 | } | |
| 435 | ||
| 436 | // }}} | |
| 437 | // {{{ listUsers() | |
| 438 | ||
| 439 | /** | |
| 440 | * list all users | |
| 441 | * | |
| 442 | * @return mixed data array on success, a MDB2 error on failure | |
| 443 | * @access public | |
| 444 | */ | |
| 445 | function listUsers() | |
| 446 | { | |
| 447 | $db =& $this->getDBInstance(); | |
| 448 | if (PEAR::isError($db)) { | |
| 449 | return $db; | |
| 450 | } | |
| 451 | ||
| 452 | $users = $db->queryCol('SELECT DISTINCT USER FROM USER'); | |
| 453 | return $users; | |
| 454 | } | |
| 455 | ||
| 456 | // }}} | |
| 457 | // {{{ listTables() | |
| 458 | ||
| 459 | /** | |
| 460 | * list all tables in the current database | |
| 461 | * | |
| 462 | * @return mixed data array on success, a MDB2 error on failure | |
| 463 | * @access public | |
| 464 | */ | |
| 465 | function listTables() | |
| 466 | { | |
| 467 | $db =& $this->getDBInstance(); | |
| 468 | if (PEAR::isError($db)) { | |
| 469 | return $db; | |
| 470 | } | |
| 471 | ||
| 472 | $table_names = $db->queryCol('SHOW TABLES'); | |
| 473 | if (PEAR::isError($table_names)) { | |
| 474 | return $table_names; | |
| 475 | } | |
| 476 | ||
| 477 | $tables = array(); | |
| 478 | for ($i = 0, $j = count($table_names); $i < $j; ++$i) { | |
| 479 | if (!$this->_isSequenceName($table_names[$i])) | |
| 480 | $tables[] = $table_names[$i]; | |
| 481 | } | |
| 482 | ||
| 483 | if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) { | |
| 484 | $tables = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $tables); | |
| 485 | } | |
| 486 | ||
| 487 | return $tables; | |
| 488 | } | |
| 489 | ||
| 490 | // }}} | |
| 491 | // {{{ listTableFields() | |
| 492 | ||
| 493 | /** | |
| 494 | * list all fields in a tables in the current database | |
| 495 | * | |
| 496 | * @param string $table name of table that should be used in method | |
| 497 | * @return mixed data array on success, a MDB2 error on failure | |
| 498 | * @access public | |
| 499 | */ | |
| 500 | function listTableFields($table) | |
| 501 | { | |
| 502 | $db =& $this->getDBInstance(); | |
| 503 | if (PEAR::isError($db)) { | |
| 504 | return $db; | |
| 505 | } | |
| 506 | ||
| 507 | $fields = $db->queryCol("SHOW COLUMNS FROM $table"); | |
| 508 | if (PEAR::isError($fields)) { | |
| 509 | return $fields; | |
| 510 | } | |
| 511 | ||
| 512 | if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) { | |
| 513 | $fields = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $fields); | |
| 514 | } | |
| 515 | ||
| 516 | return $fields; | |
| 517 | } | |
| 518 | ||
| 519 | // }}} | |
| 520 | // {{{ createIndex() | |
| 521 | ||
| 522 | /** | |
| 523 | * get the stucture of a field into an array | |
| 524 | * | |
| 525 | * @param string $table name of the table on which the index is to be created | |
| 526 | * @param string $name name of the index to be created | |
| 527 | * @param array $definition associative array that defines properties of the index to be created. | |
| 528 | * Currently, only one property named FIELDS is supported. This property | |
| 529 | * is also an associative with the names of the index fields as array | |
| 530 | * indexes. Each entry of this array is set to another type of associative | |
| 531 | * array that specifies properties of the index that are specific to | |
| 532 | * each field. | |
| 533 | * | |
| 534 | * Currently, only the sorting property is supported. It should be used | |
| 535 | * to define the sorting direction of the index. It may be set to either | |
| 536 | * ascending or descending. | |
| 537 | * | |
| 538 | * Not all DBMS support index sorting direction configuration. The DBMS | |
| 539 | * drivers of those that do not support it ignore this property. Use the | |
| 540 | * function supports() to determine whether the DBMS driver can manage indexes. | |
| 541 | ||
| 542 | * Example | |
| 543 | * array( | |
| 544 | * 'fields' => array( | |
| 545 | * 'user_name' => array( | |
| 546 | * 'sorting' => 'ascending' | |
| 547 | * ), | |
| 548 | * 'last_login' => array() | |
| 549 | * ) | |
| 550 | * ) | |
| 551 | * @return mixed MDB2_OK on success, a MDB2 error on failure | |
| 552 | * @access public | |
| 553 | */ | |
| 554 | function createIndex($table, $name, $definition) | |
| 555 | { | |
| 556 | $db =& $this->getDBInstance(); | |
| 557 | if (PEAR::isError($db)) { | |
| 558 | return $db; | |
| 559 | } | |
| 560 | ||
| 561 | if (array_key_exists('primary', $definition) && $definition['primary']) { | |
| 562 | $type = 'PRIMARY'; | |
| 563 | $name = 'KEY'; | |
| 564 | } elseif (array_key_exists('unique', $definition) && $definition['unique']) { | |
| 565 | $type = 'UNIQUE'; | |
| 566 | } else { | |
| 567 | $type = 'INDEX'; | |
| 568 | } | |
| 569 | ||
| 570 | $query = "ALTER TABLE $table ADD $type $name ("; | |
| 571 | $query.= implode(', ', array_keys($definition['fields'])); | |
| 572 | $query.= ')'; | |
| 573 | ||
| 574 | return $db->query($query); | |
| 575 | } | |
| 576 | ||
| 577 | // }}} | |
| 578 | // {{{ dropIndex() | |
| 579 | ||
| 580 | /** | |
| 581 | * drop existing index | |
| 582 | * | |
| 583 | * @param string $table name of table that should be used in method | |
| 584 | * @param string $name name of the index to be dropped | |
| 585 | * @return mixed MDB2_OK on success, a MDB2 error on failure | |
| 586 | * @access public | |
| 587 | */ | |
| 588 | function dropIndex($table, $name) | |
| 589 | { | |
| 590 | $db =& $this->getDBInstance(); | |
| 591 | if (PEAR::isError($db)) { | |
| 592 | return $db; | |
| 593 | } | |
| 594 | ||
| 595 | return $db->query("ALTER TABLE $table DROP INDEX $name"); | |
| 596 | } | |
| 597 | ||
| 598 | // }}} | |
| 599 | // {{{ listTableIndexes() | |
| 600 | ||
| 601 | /** | |
| 602 | * list all indexes in a table | |
| 603 | * | |
| 604 | * @param string $table name of table that should be used in method | |
| 605 | * @return mixed data array on success, a MDB2 error on failure | |
| 606 | * @access public | |
| 607 | */ | |
| 608 | function listTableIndexes($table) | |
| 609 | { | |
| 610 | $db =& $this->getDBInstance(); | |
| 611 | if (PEAR::isError($db)) { | |
| 612 | return $db; | |
| 613 | } | |
| 614 | ||
| 615 | $key_name = 'Key_name'; | |
| 616 | if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) { | |
| 617 | if ($db->options['field_case'] == CASE_LOWER) { | |
| 618 | $key_name = strtolower($key_name); | |
| 619 | } else { | |
| 620 | $key_name = strtoupper($key_name); | |
| 621 | } | |
| 622 | } | |
| 623 | ||
| 624 | $query = "SHOW INDEX FROM $table"; | |
| 625 | $indexes_all = $db->queryCol($query, 'text', $key_name); | |
| 626 | if (PEAR::isError($indexes_all)) { | |
| 627 | return $indexes_all; | |
| 628 | } | |
| 629 | ||
| 630 | $indexes = array_unique($indexes_all); | |
| 631 | ||
| 632 | if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) { | |
| 633 | $indexes = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $indexes); | |
| 634 | } | |
| 635 | ||
| 636 | return $indexes; | |
| 637 | } | |
| 638 | ||
| 639 | // }}} | |
| 640 | // {{{ createSequence() | |
| 641 | ||
| 642 | /** | |
| 643 | * create sequence | |
| 644 | * | |
| 645 | * @param string $seq_name name of the sequence to be created | |
| 646 | * @param string $start start value of the sequence; default is 1 | |
| 647 | * @return mixed MDB2_OK on success, a MDB2 error on failure | |
| 648 | * @access public | |
| 649 | */ | |
| 650 | function createSequence($seq_name, $start = 1) | |
| 651 | { | |
| 652 | $db =& $this->getDBInstance(); | |
| 653 | if (PEAR::isError($db)) { | |
| 654 | return $db; | |
| 655 | } | |
| 656 | ||
| 657 | $sequence_name = $db->getSequenceName($seq_name); | |
| 658 | $seqcol_name = $db->options['seqcol_name']; | |
| 659 | $result = $this->_verifyTableType($db->options['default_table_type']); | |
| 660 | if (PEAR::isError($result)) { | |
| 661 | return $result; | |
| 662 | } | |
| 663 | ||
| 664 | $res = $db->query("CREATE TABLE $sequence_name". | |
| 665 | "($seqcol_name INT NOT NULL AUTO_INCREMENT, PRIMARY KEY ($seqcol_name))". | |
| 666 | (strlen($db->options['default_table_type']) ? ' TYPE='.$db->options['default_table_type'] : '') | |
| 667 | ); | |
| 668 | ||
| 669 | if (PEAR::isError($res)) { | |
| 670 | return $res; | |
| 671 | } | |
| 672 | ||
| 673 | if ($start == 1) { | |
| 674 | return MDB2_OK; | |
| 675 | } | |
| 676 | ||
| 677 | $res = $db->query("INSERT INTO $sequence_name ($seqcol_name) VALUES (".($start-1).')'); | |
| 678 | if (!PEAR::isError($res)) { | |
| 679 | return MDB2_OK; | |
| 680 | } | |
| 681 | ||
| 682 | // Handle error | |
| 683 | $result = $db->query("DROP TABLE $sequence_name"); | |
| 684 | if (PEAR::isError($result)) { | |
| 685 | return $db->raiseError(MDB2_ERROR, null, null, | |
| 686 | 'createSequence: could not drop inconsistent sequence table ('. | |
| 687 | $result->getMessage().' ('.$result->getUserinfo().'))'); | |
| 688 | } | |
| 689 | ||
| 690 | return $db->raiseError(MDB2_ERROR, null, null, | |
| 691 | 'createSequence: could not create sequence table ('. | |
| 692 | $res->getMessage().' ('.$res->getUserinfo().'))'); | |
| 693 | } | |
| 694 | ||
| 695 | // }}} | |
| 696 | // {{{ dropSequence() | |
| 697 | ||
| 698 | /** | |
| 699 | * drop existing sequence | |
| 700 | * | |
| 701 | * @param string $seq_name name of the sequence to be dropped | |
| 702 | * @return mixed MDB2_OK on success, a MDB2 error on failure | |
| 703 | * @access public | |
| 704 | */ | |
| 705 | function dropSequence($seq_name) | |
| 706 | { | |
| 707 | $db =& $this->getDBInstance(); | |
| 708 | if (PEAR::isError($db)) { | |
| 709 | return $db; | |
| 710 | } | |
| 711 | ||
| 712 | $sequence_name = $db->getSequenceName($seq_name); | |
| 713 | return $db->query("DROP TABLE $sequence_name"); | |
| 714 | } | |
| 715 | ||
| 716 | // }}} | |
| 717 | // {{{ listSequences() | |
| 718 | ||
| 719 | /** | |
| 720 | * list all sequences in the current database | |
| 721 | * | |
| 722 | * @return mixed data array on success, a MDB2 error on failure | |
| 723 | * @access public | |
| 724 | */ | |
| 725 | function listSequences() | |
| 726 | { | |
| 727 | $db =& $this->getDBInstance(); | |
| 728 | if (PEAR::isError($db)) { | |
| 729 | return $db; | |
| 730 | } | |
| 731 | ||
| 732 | $table_names = $db->queryCol('SHOW TABLES'); | |
| 733 | if (PEAR::isError($table_names)) { | |
| 734 | return $table_names; | |
| 735 | } | |
| 736 | ||
| 737 | $sequences = array(); | |
| 738 | for ($i = 0, $j = count($table_names); $i < $j; ++$i) { | |
| 739 | if ($sqn = $this->_isSequenceName($table_names[$i])) { | |
| 740 | $sequences[] = $sqn; | |
| 741 | } | |
| 742 | } | |
| 743 | ||
| 744 | return $sequences; | |
| 745 | } | |
| 746 | ||
| 747 | // }}} | |
| 748 | } | |
| 749 | ?> | |
