| commit | author | age | ||
| d13c36 | 1 | <?php |
| S | 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 | /** | |
| 49 | * @package MDB2 | |
| 50 | * @category Database | |
| 51 | * @author Lukas Smith <smith@pooteeweet.org> | |
| 52 | */ | |
| 53 | ||
| 54 | /** | |
| 55 | * Base class for the management modules that is extended by each MDB2 driver | |
| 56 | * | |
| 57 | * @package MDB2 | |
| 58 | * @category Database | |
| 59 | * @author Lukas Smith <smith@pooteeweet.org> | |
| 60 | */ | |
| 61 | class MDB2_Driver_Manager_Common extends MDB2_Module_Common | |
| 62 | { | |
| 63 | // }}} | |
| 64 | // {{{ getFieldDeclarationList() | |
| 65 | ||
| 66 | /** | |
| 67 | * get declaration of a number of field in bulk | |
| 68 | * | |
| 69 | * @param string $fields a multidimensional associative array. | |
| 70 | * The first dimension determines the field name, while the second | |
| 71 | * dimension is keyed with the name of the properties | |
| 72 | * of the field being declared as array indexes. Currently, the types | |
| 73 | * of supported field properties are as follows: | |
| 74 | * | |
| 75 | * default | |
| 76 | * Boolean value to be used as default for this field. | |
| 77 | * | |
| 78 | * notnull | |
| 79 | * Boolean flag that indicates whether this field is constrained | |
| 80 | * to not be set to null. | |
| 81 | * | |
| 82 | * @return mixed string on success, a MDB2 error on failure | |
| 83 | * @access public | |
| 84 | */ | |
| 85 | function getFieldDeclarationList($fields) | |
| 86 | { | |
| 87 | $db =& $this->getDBInstance(); | |
| 88 | if (PEAR::isError($db)) { | |
| 89 | return $db; | |
| 90 | } | |
| 91 | ||
| 92 | if (is_array($fields)) { | |
| 93 | foreach ($fields as $field_name => $field) { | |
| 94 | $query = $db->getDeclaration($field['type'], $field_name, $field); | |
| 95 | if (PEAR::isError($query)) { | |
| 96 | return $query; | |
| 97 | } | |
| 98 | $query_fields[] = $query; | |
| 99 | } | |
| 100 | return implode(',', $query_fields); | |
| 101 | } | |
| 102 | return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, | |
| 103 | 'getFieldDeclarationList: the definition of the table "'.$table_name.'" does not contain any fields'); | |
| 104 | } | |
| 105 | ||
| 106 | // }}} | |
| 107 | // {{{ _isSequenceName() | |
| 108 | ||
| 109 | /** | |
| 110 | * list all tables in the current database | |
| 111 | * | |
| 112 | * @param string $sqn string that containts name of a potential sequence | |
| 113 | * @return mixed name of the sequence if $sqn is a name of a sequence, else false | |
| 114 | * @access protected | |
| 115 | */ | |
| 116 | function _isSequenceName($sqn) | |
| 117 | { | |
| 118 | $db =& $this->getDBInstance(); | |
| 119 | if (PEAR::isError($db)) { | |
| 120 | return $db; | |
| 121 | } | |
| 122 | ||
| 123 | $seq_pattern = '/^'.preg_replace('/%s/', '([a-z0-9_]+)', $db->options['seqname_format']).'$/i'; | |
| 124 | $seq_name = preg_replace($seq_pattern, '\\1', $sqn); | |
| 125 | if ($seq_name && $sqn == $db->getSequenceName($seq_name)) { | |
| 126 | return $seq_name; | |
| 127 | } | |
| 128 | return false; | |
| 129 | } | |
| 130 | ||
| 131 | // }}} | |
| 132 | // {{{ createDatabase() | |
| 133 | ||
| 134 | /** | |
| 135 | * create a new database | |
| 136 | * | |
| 137 | * @param string $name name of the database that should be created | |
| 138 | * @return mixed MDB2_OK on success, a MDB2 error on failure | |
| 139 | * @access public | |
| 140 | */ | |
| 141 | function createDatabase($database) | |
| 142 | { | |
| 143 | $db =& $this->getDBInstance(); | |
| 144 | if (PEAR::isError($db)) { | |
| 145 | return $db; | |
| 146 | } | |
| 147 | ||
| 148 | return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, | |
| 149 | 'createDatabase: database creation is not supported'); | |
| 150 | } | |
| 151 | ||
| 152 | // }}} | |
| 153 | // {{{ dropDatabase() | |
| 154 | ||
| 155 | /** | |
| 156 | * drop an existing database | |
| 157 | * | |
| 158 | * @param string $name name of the database that should be dropped | |
| 159 | * @return mixed MDB2_OK on success, a MDB2 error on failure | |
| 160 | * @access public | |
| 161 | */ | |
| 162 | function dropDatabase($database) | |
| 163 | { | |
| 164 | $db =& $this->getDBInstance(); | |
| 165 | if (PEAR::isError($db)) { | |
| 166 | return $db; | |
| 167 | } | |
| 168 | ||
| 169 | return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, | |
| 170 | 'dropDatabase: database dropping is not supported'); | |
| 171 | } | |
| 172 | ||
| 173 | // }}} | |
| 174 | // {{{ createTable() | |
| 175 | ||
| 176 | /** | |
| 177 | * create a new table | |
| 178 | * | |
| 179 | * @param string $name Name of the database that should be created | |
| 180 | * @param array $fields Associative array that contains the definition of each field of the new table | |
| 181 | * The indexes of the array entries are the names of the fields of the table an | |
| 182 | * the array entry values are associative arrays like those that are meant to be | |
| 183 | * passed with the field definitions to get[Type]Declaration() functions. | |
| 184 | * | |
| 185 | * Example | |
| 186 | * array( | |
| 187 | * | |
| 188 | * 'id' => array( | |
| 189 | * 'type' => 'integer', | |
| 190 | * 'unsigned' => 1 | |
| 191 | * 'notnull' => 1 | |
| 192 | * 'default' => 0 | |
| 193 | * ), | |
| 194 | * 'name' => array( | |
| 195 | * 'type' => 'text', | |
| 196 | * 'length' => 12 | |
| 197 | * ), | |
| 198 | * 'password' => array( | |
| 199 | * 'type' => 'text', | |
| 200 | * 'length' => 12 | |
| 201 | * ) | |
| 202 | * ); | |
| 203 | * @return mixed MDB2_OK on success, a MDB2 error on failure | |
| 204 | * @access public | |
| 205 | */ | |
| 206 | function createTable($name, $fields) | |
| 207 | { | |
| 208 | $db =& $this->getDBInstance(); | |
| 209 | if (PEAR::isError($db)) { | |
| 210 | return $db; | |
| 211 | } | |
| 212 | ||
| 213 | if (!$name) { | |
| 214 | return $db->raiseError(MDB2_ERROR_CANNOT_CREATE, null, null, | |
| 215 | 'createTable: no valid table name specified'); | |
| 216 | } | |
| 217 | if (empty($fields)) { | |
| 218 | return $db->raiseError(MDB2_ERROR_CANNOT_CREATE, null, null, | |
| 219 | 'createTable: no fields specified for table "'.$name.'"'); | |
| 220 | } | |
| 221 | $query_fields = $this->getFieldDeclarationList($fields); | |
| 222 | if (PEAR::isError($query_fields)) { | |
| 223 | return $db->raiseError(MDB2_ERROR_CANNOT_CREATE, null, null, | |
| 224 | 'createTable: unkown error'); | |
| 225 | } | |
| 226 | $query = "CREATE TABLE $name ($query_fields)"; | |
| 227 | return $db->query($query); | |
| 228 | } | |
| 229 | ||
| 230 | // }}} | |
| 231 | // {{{ dropTable() | |
| 232 | ||
| 233 | /** | |
| 234 | * drop an existing table | |
| 235 | * | |
| 236 | * @param string $name name of the table that should be dropped | |
| 237 | * @return mixed MDB2_OK on success, a MDB2 error on failure | |
| 238 | * @access public | |
| 239 | */ | |
| 240 | function dropTable($name) | |
| 241 | { | |
| 242 | $db =& $this->getDBInstance(); | |
| 243 | if (PEAR::isError($db)) { | |
| 244 | return $db; | |
| 245 | } | |
| 246 | ||
| 247 | return $db->query("DROP TABLE $name"); | |
| 248 | } | |
| 249 | ||
| 250 | // }}} | |
| 251 | // {{{ alterTable() | |
| 252 | ||
| 253 | /** | |
| 254 | * alter an existing table | |
| 255 | * | |
| 256 | * @param string $name name of the table that is intended to be changed. | |
| 257 | * @param array $changes associative array that contains the details of each type | |
| 258 | * of change that is intended to be performed. The types of | |
| 259 | * changes that are currently supported are defined as follows: | |
| 260 | * | |
| 261 | * name | |
| 262 | * | |
| 263 | * New name for the table. | |
| 264 | * | |
| 265 | * add | |
| 266 | * | |
| 267 | * Associative array with the names of fields to be added as | |
| 268 | * indexes of the array. The value of each entry of the array | |
| 269 | * should be set to another associative array with the properties | |
| 270 | * of the fields to be added. The properties of the fields should | |
| 271 | * be the same as defined by the Metabase parser. | |
| 272 | * | |
| 273 | * | |
| 274 | * remove | |
| 275 | * | |
| 276 | * Associative array with the names of fields to be removed as indexes | |
| 277 | * of the array. Currently the values assigned to each entry are ignored. | |
| 278 | * An empty array should be used for future compatibility. | |
| 279 | * | |
| 280 | * rename | |
| 281 | * | |
| 282 | * Associative array with the names of fields to be renamed as indexes | |
| 283 | * of the array. The value of each entry of the array should be set to | |
| 284 | * another associative array with the entry named name with the new | |
| 285 | * field name and the entry named Declaration that is expected to contain | |
| 286 | * the portion of the field declaration already in DBMS specific SQL code | |
| 287 | * as it is used in the CREATE TABLE statement. | |
| 288 | * | |
| 289 | * change | |
| 290 | * | |
| 291 | * Associative array with the names of the fields to be changed as indexes | |
| 292 | * of the array. Keep in mind that if it is intended to change either the | |
| 293 | * name of a field and any other properties, the change array entries | |
| 294 | * should have the new names of the fields as array indexes. | |
| 295 | * | |
| 296 | * The value of each entry of the array should be set to another associative | |
| 297 | * array with the properties of the fields to that are meant to be changed as | |
| 298 | * array entries. These entries should be assigned to the new values of the | |
| 299 | * respective properties. The properties of the fields should be the same | |
| 300 | * as defined by the Metabase parser. | |
| 301 | * | |
| 302 | * Example | |
| 303 | * array( | |
| 304 | * 'name' => 'userlist', | |
| 305 | * 'add' => array( | |
| 306 | * 'quota' => array( | |
| 307 | * 'type' => 'integer', | |
| 308 | * 'unsigned' => 1 | |
| 309 | * ) | |
| 310 | * ), | |
| 311 | * 'remove' => array( | |
| 312 | * 'file_limit' => array(), | |
| 313 | * 'time_limit' => array() | |
| 314 | * ), | |
| 315 | * 'change' => array( | |
| 316 | * 'gender' => array( | |
| 317 | * 'default' => 'M', | |
| 318 | * ) | |
| 319 | * ), | |
| 320 | * 'rename' => array( | |
| 321 | * 'sex' => array( | |
| 322 | * 'name' => 'gender', | |
| 323 | * ) | |
| 324 | * ) | |
| 325 | * ) | |
| 326 | * @param boolean $check indicates whether the function should just check if the DBMS driver | |
| 327 | * can perform the requested table alterations if the value is true or | |
| 328 | * actually perform them otherwise. | |
| 329 | * @return mixed MDB2_OK on success, a MDB2 error on failure | |
| 330 | * @access public | |
| 331 | */ | |
| 332 | function alterTable($name, $changes, $check) | |
| 333 | { | |
| 334 | $db =& $this->getDBInstance(); | |
| 335 | if (PEAR::isError($db)) { | |
| 336 | return $db; | |
| 337 | } | |
| 338 | ||
| 339 | return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, | |
| 340 | 'alterTable: database table alterations are not supported'); | |
| 341 | } | |
| 342 | ||
| 343 | // }}} | |
| 344 | // {{{ listDatabases() | |
| 345 | ||
| 346 | /** | |
| 347 | * list all databases | |
| 348 | * | |
| 349 | * @return mixed data array on success, a MDB2 error on failure | |
| 350 | * @access public | |
| 351 | */ | |
| 352 | function listDatabases() | |
| 353 | { | |
| 354 | $db =& $this->getDBInstance(); | |
| 355 | if (PEAR::isError($db)) { | |
| 356 | return $db; | |
| 357 | } | |
| 358 | ||
| 359 | return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, | |
| 360 | 'listDatabases: list databases is not supported'); | |
| 361 | } | |
| 362 | ||
| 363 | // }}} | |
| 364 | // {{{ listUsers() | |
| 365 | ||
| 366 | /** | |
| 367 | * list all users | |
| 368 | * | |
| 369 | * @return mixed data array on success, a MDB2 error on failure | |
| 370 | * @access public | |
| 371 | */ | |
| 372 | function listUsers() | |
| 373 | { | |
| 374 | $db =& $this->getDBInstance(); | |
| 375 | if (PEAR::isError($db)) { | |
| 376 | return $db; | |
| 377 | } | |
| 378 | ||
| 379 | return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, | |
| 380 | 'listUsers: list user is not supported'); | |
| 381 | } | |
| 382 | ||
| 383 | // }}} | |
| 384 | // {{{ listViews() | |
| 385 | ||
| 386 | /** | |
| 387 | * list all views in the current database | |
| 388 | * | |
| 389 | * @return mixed data array on success, a MDB2 error on failure | |
| 390 | * @access public | |
| 391 | */ | |
| 392 | function listViews() | |
| 393 | { | |
| 394 | $db =& $this->getDBInstance(); | |
| 395 | if (PEAR::isError($db)) { | |
| 396 | return $db; | |
| 397 | } | |
| 398 | ||
| 399 | return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, | |
| 400 | 'listViews: list view is not supported'); | |
| 401 | } | |
| 402 | ||
| 403 | // }}} | |
| 404 | // {{{ listFunctions() | |
| 405 | ||
| 406 | /** | |
| 407 | * list all functions in the current database | |
| 408 | * | |
| 409 | * @return mixed data array on success, a MDB2 error on failure | |
| 410 | * @access public | |
| 411 | */ | |
| 412 | function listFunctions() | |
| 413 | { | |
| 414 | $db =& $this->getDBInstance(); | |
| 415 | if (PEAR::isError($db)) { | |
| 416 | return $db; | |
| 417 | } | |
| 418 | ||
| 419 | return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, | |
| 420 | 'listFunctions: list function is not supported'); | |
| 421 | } | |
| 422 | ||
| 423 | // }}} | |
| 424 | // {{{ listTables() | |
| 425 | ||
| 426 | /** | |
| 427 | * list all tables in the current database | |
| 428 | * | |
| 429 | * @return mixed data array on success, a MDB2 error on failure | |
| 430 | * @access public | |
| 431 | */ | |
| 432 | function listTables() | |
| 433 | { | |
| 434 | $db =& $this->getDBInstance(); | |
| 435 | if (PEAR::isError($db)) { | |
| 436 | return $db; | |
| 437 | } | |
| 438 | ||
| 439 | return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, | |
| 440 | 'listTables: list tables is not supported'); | |
| 441 | } | |
| 442 | ||
| 443 | // }}} | |
| 444 | // {{{ listTableFields() | |
| 445 | ||
| 446 | /** | |
| 447 | * list all fields in a tables in the current database | |
| 448 | * | |
| 449 | * @param string $table name of table that should be used in method | |
| 450 | * @return mixed data array on success, a MDB2 error on failure | |
| 451 | * @access public | |
| 452 | */ | |
| 453 | function listTableFields($table) | |
| 454 | { | |
| 455 | $db =& $this->getDBInstance(); | |
| 456 | if (PEAR::isError($db)) { | |
| 457 | return $db; | |
| 458 | } | |
| 459 | ||
| 460 | return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, | |
| 461 | 'listTableFields: list table fields is not supported'); | |
| 462 | } | |
| 463 | ||
| 464 | // }}} | |
| 465 | // {{{ createIndex() | |
| 466 | ||
| 467 | /** | |
| 468 | * get the stucture of a field into an array | |
| 469 | * | |
| 470 | * @param string $table name of the table on which the index is to be created | |
| 471 | * @param string $name name of the index to be created | |
| 472 | * @param array $definition associative array that defines properties of the index to be created. | |
| 473 | * Currently, only one property named FIELDS is supported. This property | |
| 474 | * is also an associative with the names of the index fields as array | |
| 475 | * indexes. Each entry of this array is set to another type of associative | |
| 476 | * array that specifies properties of the index that are specific to | |
| 477 | * each field. | |
| 478 | * | |
| 479 | * Currently, only the sorting property is supported. It should be used | |
| 480 | * to define the sorting direction of the index. It may be set to either | |
| 481 | * ascending or descending. | |
| 482 | * | |
| 483 | * Not all DBMS support index sorting direction configuration. The DBMS | |
| 484 | * drivers of those that do not support it ignore this property. Use the | |
| 485 | * function supports() to determine whether the DBMS driver can manage indexes. | |
| 486 | * | |
| 487 | * Example | |
| 488 | * array( | |
| 489 | * 'fields' => array( | |
| 490 | * 'user_name' => array( | |
| 491 | * 'sorting' => 'ascending' | |
| 492 | * ), | |
| 493 | * 'last_login' => array() | |
| 494 | * ) | |
| 495 | * ) | |
| 496 | * @return mixed MDB2_OK on success, a MDB2 error on failure | |
| 497 | * @access public | |
| 498 | */ | |
| 499 | function createIndex($table, $name, $definition) | |
| 500 | { | |
| 501 | $db =& $this->getDBInstance(); | |
| 502 | if (PEAR::isError($db)) { | |
| 503 | return $db; | |
| 504 | } | |
| 505 | ||
| 506 | return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, | |
| 507 | 'createIndex: Creating Indexes is not supported'); | |
| 508 | } | |
| 509 | ||
| 510 | // }}} | |
| 511 | // {{{ dropIndex() | |
| 512 | ||
| 513 | /** | |
| 514 | * drop existing index | |
| 515 | * | |
| 516 | * @param string $table name of table that should be used in method | |
| 517 | * @param string $name name of the index to be dropped | |
| 518 | * @return mixed MDB2_OK on success, a MDB2 error on failure | |
| 519 | * @access public | |
| 520 | */ | |
| 521 | function dropIndex($table, $name) | |
| 522 | { | |
| 523 | $db =& $this->getDBInstance(); | |
| 524 | if (PEAR::isError($db)) { | |
| 525 | return $db; | |
| 526 | } | |
| 527 | ||
| 528 | return $db->query("DROP INDEX $name"); | |
| 529 | } | |
| 530 | ||
| 531 | // }}} | |
| 532 | // {{{ listTableIndexes() | |
| 533 | ||
| 534 | /** | |
| 535 | * list all indexes in a table | |
| 536 | * | |
| 537 | * @param string $table name of table that should be used in method | |
| 538 | * @return mixed data array on success, a MDB2 error on failure | |
| 539 | * @access public | |
| 540 | */ | |
| 541 | function listTableIndexes($table) | |
| 542 | { | |
| 543 | $db =& $this->getDBInstance(); | |
| 544 | if (PEAR::isError($db)) { | |
| 545 | return $db; | |
| 546 | } | |
| 547 | ||
| 548 | return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, | |
| 549 | 'listTableIndexes: List Indexes is not supported'); | |
| 550 | } | |
| 551 | ||
| 552 | // }}} | |
| 553 | // {{{ createSequence() | |
| 554 | ||
| 555 | /** | |
| 556 | * create sequence | |
| 557 | * | |
| 558 | * @param string $seq_name name of the sequence to be created | |
| 559 | * @param string $start start value of the sequence; default is 1 | |
| 560 | * @return mixed MDB2_OK on success, a MDB2 error on failure | |
| 561 | * @access public | |
| 562 | */ | |
| 563 | function createSequence($seq_name, $start = 1) | |
| 564 | { | |
| 565 | $db =& $this->getDBInstance(); | |
| 566 | if (PEAR::isError($db)) { | |
| 567 | return $db; | |
| 568 | } | |
| 569 | ||
| 570 | return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, | |
| 571 | 'createSequence: sequence creation not supported'); | |
| 572 | } | |
| 573 | ||
| 574 | // }}} | |
| 575 | // {{{ dropSequence() | |
| 576 | ||
| 577 | /** | |
| 578 | * drop existing sequence | |
| 579 | * | |
| 580 | * @param string $seq_name name of the sequence to be dropped | |
| 581 | * @return mixed MDB2_OK on success, a MDB2 error on failure | |
| 582 | * @access public | |
| 583 | */ | |
| 584 | function dropSequence($name) | |
| 585 | { | |
| 586 | $db =& $this->getDBInstance(); | |
| 587 | if (PEAR::isError($db)) { | |
| 588 | return $db; | |
| 589 | } | |
| 590 | ||
| 591 | return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, | |
| 592 | 'dropSequence: sequence dropping not supported'); | |
| 593 | } | |
| 594 | ||
| 595 | // }}} | |
| 596 | // {{{ listSequences() | |
| 597 | ||
| 598 | /** | |
| 599 | * list all sequences in the current database | |
| 600 | * | |
| 601 | * @return mixed data array on success, a MDB2 error on failure | |
| 602 | * @access public | |
| 603 | */ | |
| 604 | function listSequences() | |
| 605 | { | |
| 606 | $db =& $this->getDBInstance(); | |
| 607 | if (PEAR::isError($db)) { | |
| 608 | return $db; | |
| 609 | } | |
| 610 | ||
| 611 | return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, | |
| 612 | 'listSequences: List sequences is not supported'); | |
| 613 | } | |
| 614 | } | |
| 615 | ||
| 616 | ?> | |
