| 1 | <?php |
| 2 | /* |
| 3 | * $Id: Pgsql.php 3895 2008-02-27 01:39:51Z guilhermeblanco $ |
| 4 | * |
| 5 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 6 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 7 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 8 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 9 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 10 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 11 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 12 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 13 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 14 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 15 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 16 | * |
| 17 | * This software consists of voluntary contributions made by many individuals |
| 18 | * and is licensed under the LGPL. For more information, see |
| 19 | * <http://www.phpdoctrine.org>. |
| 20 | */ |
| 21 | Doctrine::autoload('Doctrine_DataDict'); |
| 22 | /** |
| 23 | * @package Doctrine |
| 24 | * @subpackage DataDict |
| 25 | * @license http://www.opensource.org/licenses/lgpl-license.php LGPL |
| 26 | * @author Konsta Vesterinen <kvesteri@cc.hut.fi> |
| 27 | * @author Paul Cooper <pgc@ucecom.com> |
| 28 | * @author Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library) |
| 29 | * @version $Revision: 3895 $ |
| 30 | * @link www.phpdoctrine.org |
| 31 | * @since 1.0 |
| 32 | */ |
| 33 | class Doctrine_DataDict_Pgsql extends Doctrine_DataDict |
| 34 | { |
| 35 | /** |
| 36 | * @param array $reservedKeyWords an array of reserved keywords by pgsql |
| 37 | */ |
| 38 | protected static $reservedKeyWords = array( |
| 39 | 'abort', |
| 40 | 'absolute', |
| 41 | 'access', |
| 42 | 'action', |
| 43 | 'add', |
| 44 | 'after', |
| 45 | 'aggregate', |
| 46 | 'all', |
| 47 | 'alter', |
| 48 | 'analyse', |
| 49 | 'analyze', |
| 50 | 'and', |
| 51 | 'any', |
| 52 | 'as', |
| 53 | 'asc', |
| 54 | 'assertion', |
| 55 | 'assignment', |
| 56 | 'at', |
| 57 | 'authorization', |
| 58 | 'backward', |
| 59 | 'before', |
| 60 | 'begin', |
| 61 | 'between', |
| 62 | 'bigint', |
| 63 | 'binary', |
| 64 | 'bit', |
| 65 | 'boolean', |
| 66 | 'both', |
| 67 | 'by', |
| 68 | 'cache', |
| 69 | 'called', |
| 70 | 'cascade', |
| 71 | 'case', |
| 72 | 'cast', |
| 73 | 'chain', |
| 74 | 'char', |
| 75 | 'character', |
| 76 | 'characteristics', |
| 77 | 'check', |
| 78 | 'checkpoint', |
| 79 | 'class', |
| 80 | 'close', |
| 81 | 'cluster', |
| 82 | 'coalesce', |
| 83 | 'collate', |
| 84 | 'column', |
| 85 | 'comment', |
| 86 | 'commit', |
| 87 | 'committed', |
| 88 | 'constraint', |
| 89 | 'constraints', |
| 90 | 'conversion', |
| 91 | 'convert', |
| 92 | 'copy', |
| 93 | 'create', |
| 94 | 'createdb', |
| 95 | 'createuser', |
| 96 | 'cross', |
| 97 | 'current_date', |
| 98 | 'current_time', |
| 99 | 'current_timestamp', |
| 100 | 'current_user', |
| 101 | 'cursor', |
| 102 | 'cycle', |
| 103 | 'database', |
| 104 | 'day', |
| 105 | 'deallocate', |
| 106 | 'dec', |
| 107 | 'decimal', |
| 108 | 'declare', |
| 109 | 'default', |
| 110 | 'deferrable', |
| 111 | 'deferred', |
| 112 | 'definer', |
| 113 | 'delete', |
| 114 | 'delimiter', |
| 115 | 'delimiters', |
| 116 | 'desc', |
| 117 | 'distinct', |
| 118 | 'do', |
| 119 | 'domain', |
| 120 | 'double', |
| 121 | 'drop', |
| 122 | 'each', |
| 123 | 'else', |
| 124 | 'encoding', |
| 125 | 'encrypted', |
| 126 | 'end', |
| 127 | 'escape', |
| 128 | 'except', |
| 129 | 'exclusive', |
| 130 | 'execute', |
| 131 | 'exists', |
| 132 | 'explain', |
| 133 | 'external', |
| 134 | 'extract', |
| 135 | 'false', |
| 136 | 'fetch', |
| 137 | 'float', |
| 138 | 'for', |
| 139 | 'force', |
| 140 | 'foreign', |
| 141 | 'forward', |
| 142 | 'freeze', |
| 143 | 'from', |
| 144 | 'full', |
| 145 | 'function', |
| 146 | 'get', |
| 147 | 'global', |
| 148 | 'grant', |
| 149 | 'group', |
| 150 | 'handler', |
| 151 | 'having', |
| 152 | 'hour', |
| 153 | 'ilike', |
| 154 | 'immediate', |
| 155 | 'immutable', |
| 156 | 'implicit', |
| 157 | 'in', |
| 158 | 'increment', |
| 159 | 'index', |
| 160 | 'inherits', |
| 161 | 'initially', |
| 162 | 'inner', |
| 163 | 'inout', |
| 164 | 'input', |
| 165 | 'insensitive', |
| 166 | 'insert', |
| 167 | 'instead', |
| 168 | 'int', |
| 169 | 'integer', |
| 170 | 'intersect', |
| 171 | 'interval', |
| 172 | 'into', |
| 173 | 'invoker', |
| 174 | 'is', |
| 175 | 'isnull', |
| 176 | 'isolation', |
| 177 | 'join', |
| 178 | 'key', |
| 179 | 'lancompiler', |
| 180 | 'language', |
| 181 | 'leading', |
| 182 | 'left', |
| 183 | 'level', |
| 184 | 'like', |
| 185 | 'limit', |
| 186 | 'listen', |
| 187 | 'load', |
| 188 | 'local', |
| 189 | 'localtime', |
| 190 | 'localtimestamp', |
| 191 | 'location', |
| 192 | 'lock', |
| 193 | 'match', |
| 194 | 'maxvalue', |
| 195 | 'minute', |
| 196 | 'minvalue', |
| 197 | 'mode', |
| 198 | 'month', |
| 199 | 'move', |
| 200 | 'names', |
| 201 | 'national', |
| 202 | 'natural', |
| 203 | 'nchar', |
| 204 | 'new', |
| 205 | 'next', |
| 206 | 'no', |
| 207 | 'nocreatedb', |
| 208 | 'nocreateuser', |
| 209 | 'none', |
| 210 | 'not', |
| 211 | 'nothing', |
| 212 | 'notify', |
| 213 | 'notnull', |
| 214 | 'null', |
| 215 | 'nullif', |
| 216 | 'numeric', |
| 217 | 'of', |
| 218 | 'off', |
| 219 | 'offset', |
| 220 | 'oids', |
| 221 | 'old', |
| 222 | 'on', |
| 223 | 'only', |
| 224 | 'operator', |
| 225 | 'option', |
| 226 | 'or', |
| 227 | 'order', |
| 228 | 'out', |
| 229 | 'outer', |
| 230 | 'overlaps', |
| 231 | 'overlay', |
| 232 | 'owner', |
| 233 | 'partial', |
| 234 | 'password', |
| 235 | 'path', |
| 236 | 'pendant', |
| 237 | 'placing', |
| 238 | 'position', |
| 239 | 'precision', |
| 240 | 'prepare', |
| 241 | 'primary', |
| 242 | 'prior', |
| 243 | 'privileges', |
| 244 | 'procedural', |
| 245 | 'procedure', |
| 246 | 'read', |
| 247 | 'real', |
| 248 | 'recheck', |
| 249 | 'references', |
| 250 | 'reindex', |
| 251 | 'relative', |
| 252 | 'rename', |
| 253 | 'replace', |
| 254 | 'reset', |
| 255 | 'restrict', |
| 256 | 'returns', |
| 257 | 'revoke', |
| 258 | 'right', |
| 259 | 'rollback', |
| 260 | 'row', |
| 261 | 'rule', |
| 262 | 'schema', |
| 263 | 'scroll', |
| 264 | 'second', |
| 265 | 'security', |
| 266 | 'select', |
| 267 | 'sequence', |
| 268 | 'serializable', |
| 269 | 'session', |
| 270 | 'session_user', |
| 271 | 'set', |
| 272 | 'setof', |
| 273 | 'share', |
| 274 | 'show', |
| 275 | 'similar', |
| 276 | 'simple', |
| 277 | 'smallint', |
| 278 | 'some', |
| 279 | 'stable', |
| 280 | 'start', |
| 281 | 'statement', |
| 282 | 'statistics', |
| 283 | 'stdin', |
| 284 | 'stdout', |
| 285 | 'storage', |
| 286 | 'strict', |
| 287 | 'substring', |
| 288 | 'sysid', |
| 289 | 'table', |
| 290 | 'temp', |
| 291 | 'template', |
| 292 | 'temporary', |
| 293 | 'then', |
| 294 | 'time', |
| 295 | 'timestamp', |
| 296 | 'to', |
| 297 | 'toast', |
| 298 | 'trailing', |
| 299 | 'transaction', |
| 300 | 'treat', |
| 301 | 'trigger', |
| 302 | 'trim', |
| 303 | 'true', |
| 304 | 'truncate', |
| 305 | 'trusted', |
| 306 | 'type', |
| 307 | 'unencrypted', |
| 308 | 'union', |
| 309 | 'unique', |
| 310 | 'unknown', |
| 311 | 'unlisten', |
| 312 | 'until', |
| 313 | 'update', |
| 314 | 'usage', |
| 315 | 'user', |
| 316 | 'using', |
| 317 | 'vacuum', |
| 318 | 'valid', |
| 319 | 'validator', |
| 320 | 'values', |
| 321 | 'varchar', |
| 322 | 'varying', |
| 323 | 'verbose', |
| 324 | 'version', |
| 325 | 'view', |
| 326 | 'volatile', |
| 327 | 'when', |
| 328 | 'where', |
| 329 | 'with', |
| 330 | 'without', |
| 331 | 'work', |
| 332 | 'write', |
| 333 | 'year', |
| 334 | 'zone' |
| 335 | ); |
| 336 | |
| 337 | /** |
| 338 | * Obtain DBMS specific SQL code portion needed to declare an text type |
| 339 | * field to be used in statements like CREATE TABLE. |
| 340 | * |
| 341 | * @param array $field associative array with the name of the properties |
| 342 | * of the field being declared as array indexes. Currently, the types |
| 343 | * of supported field properties are as follows: |
| 344 | * |
| 345 | * length |
| 346 | * Integer value that determines the maximum length of the text |
| 347 | * field. If this argument is missing the field should be |
| 348 | * declared to have the longest length allowed by the DBMS. |
| 349 | * |
| 350 | * default |
| 351 | * Text value to be used as default for this field. |
| 352 | * |
| 353 | * notnull |
| 354 | * Boolean flag that indicates whether this field is constrained |
| 355 | * to not be set to null. |
| 356 | * |
| 357 | * @return string DBMS specific SQL code portion that should be used to |
| 358 | * declare the specified field. |
| 359 | */ |
| 360 | public function getNativeDeclaration(array $field) |
| 361 | { |
| 362 | if ( ! isset($field['type'])) { |
| 363 | throw new Doctrine_DataDict_Exception('Missing column type.'); |
| 364 | } |
| 365 | switch ($field['type']) { |
| 366 | case 'char': |
| 367 | case 'string': |
| 368 | case 'array': |
| 369 | case 'object': |
| 370 | case 'varchar': |
| 371 | case 'gzip': |
| 372 | // TODO: what is the maximum VARCHAR length in pgsql ? |
| 373 | $length = (isset($field['length']) && $field['length'] && $field['length'] < 10000) ? $field['length'] : null; |
| 374 | |
| 375 | $fixed = ((isset($field['fixed']) && $field['fixed']) || $field['type'] == 'char') ? true : false; |
| 376 | |
| 377 | return $fixed ? ($length ? 'CHAR(' . $length . ')' : 'CHAR('.$this->conn->options['default_text_field_length'].')') |
| 378 | : ($length ? 'VARCHAR(' .$length . ')' : 'TEXT'); |
| 379 | |
| 380 | case 'clob': |
| 381 | return 'TEXT'; |
| 382 | case 'blob': |
| 383 | return 'BYTEA'; |
| 384 | case 'enum': |
| 385 | case 'integer': |
| 386 | case 'int': |
| 387 | if ( ! empty($field['autoincrement'])) { |
| 388 | if ( ! empty($field['length'])) { |
| 389 | $length = $field['length']; |
| 390 | if ($length > 4) { |
| 391 | return 'BIGSERIAL'; |
| 392 | } |
| 393 | } |
| 394 | return 'SERIAL'; |
| 395 | } |
| 396 | if ( ! empty($field['length'])) { |
| 397 | $length = $field['length']; |
| 398 | if ($length <= 2) { |
| 399 | return 'SMALLINT'; |
| 400 | } elseif ($length == 3 || $length == 4) { |
| 401 | return 'INT'; |
| 402 | } elseif ($length > 4) { |
| 403 | return 'BIGINT'; |
| 404 | } |
| 405 | } |
| 406 | return 'INT'; |
| 407 | case 'boolean': |
| 408 | return 'BOOLEAN'; |
| 409 | case 'date': |
| 410 | return 'DATE'; |
| 411 | case 'time': |
| 412 | return 'TIME without time zone'; |
| 413 | case 'timestamp': |
| 414 | return 'TIMESTAMP without time zone'; |
| 415 | case 'float': |
| 416 | case 'double': |
| 417 | return 'FLOAT'; |
| 418 | case 'decimal': |
| 419 | $length = !empty($field['length']) ? $field['length'] : 18; |
| 420 | $scale = !empty($field['scale']) ? $field['scale'] : $this->conn->getAttribute(Doctrine::ATTR_DECIMAL_PLACES); |
| 421 | return 'NUMERIC('.$length.','.$scale.')'; |
| 422 | } |
| 423 | throw new Doctrine_DataDict_Exception('Unknown field type \'' . $field['type'] . '\'.'); |
| 424 | } |
| 425 | |
| 426 | /** |
| 427 | * Maps a native array description of a field to a portable Doctrine datatype and length |
| 428 | * |
| 429 | * @param array $field native field description |
| 430 | * |
| 431 | * @return array containing the various possible types, length, sign, fixed |
| 432 | */ |
| 433 | public function getPortableDeclaration(array $field) |
| 434 | { |
| 435 | |
| 436 | $length = (isset($field['length'])) ? $field['length'] : null; |
| 437 | if ($length == '-1' && isset($field['atttypmod'])) { |
| 438 | $length = $field['atttypmod'] - 4; |
| 439 | } |
| 440 | if ((int)$length <= 0) { |
| 441 | $length = null; |
| 442 | } |
| 443 | $type = array(); |
| 444 | $unsigned = $fixed = null; |
| 445 | |
| 446 | if ( ! isset($field['name'])) { |
| 447 | $field['name'] = ''; |
| 448 | } |
| 449 | |
| 450 | $dbType = strtolower($field['type']); |
| 451 | |
| 452 | switch ($dbType) { |
| 453 | case 'smallint': |
| 454 | case 'int2': |
| 455 | $type[] = 'integer'; |
| 456 | $unsigned = false; |
| 457 | $length = 2; |
| 458 | if ($length == '2') { |
| 459 | $type[] = 'boolean'; |
| 460 | if (preg_match('/^(is|has)/', $field['name'])) { |
| 461 | $type = array_reverse($type); |
| 462 | } |
| 463 | } |
| 464 | break; |
| 465 | case 'int': |
| 466 | case 'int4': |
| 467 | case 'integer': |
| 468 | case 'serial': |
| 469 | case 'serial4': |
| 470 | $type[] = 'integer'; |
| 471 | $unsigned = false; |
| 472 | $length = 4; |
| 473 | break; |
| 474 | case 'bigint': |
| 475 | case 'int8': |
| 476 | case 'bigserial': |
| 477 | case 'serial8': |
| 478 | $type[] = 'integer'; |
| 479 | $unsigned = false; |
| 480 | $length = 8; |
| 481 | break; |
| 482 | case 'bool': |
| 483 | case 'boolean': |
| 484 | $type[] = 'boolean'; |
| 485 | $length = 1; |
| 486 | break; |
| 487 | case 'text': |
| 488 | case 'varchar': |
| 489 | case 'interval': |
| 490 | case '_varchar': |
| 491 | $fixed = false; |
| 492 | case 'unknown': |
| 493 | case 'char': |
| 494 | case 'bpchar': |
| 495 | $type[] = 'string'; |
| 496 | if ($length == '1') { |
| 497 | $type[] = 'boolean'; |
| 498 | if (preg_match('/^(is|has)/', $field['name'])) { |
| 499 | $type = array_reverse($type); |
| 500 | } |
| 501 | } elseif (strstr($dbType, 'text')) { |
| 502 | $type[] = 'clob'; |
| 503 | } |
| 504 | if ($fixed !== false) { |
| 505 | $fixed = true; |
| 506 | } |
| 507 | break; |
| 508 | case 'date': |
| 509 | $type[] = 'date'; |
| 510 | $length = null; |
| 511 | break; |
| 512 | case 'datetime': |
| 513 | case 'timestamp': |
| 514 | case 'timestamptz': |
| 515 | $type[] = 'timestamp'; |
| 516 | $length = null; |
| 517 | break; |
| 518 | case 'time': |
| 519 | $type[] = 'time'; |
| 520 | $length = null; |
| 521 | break; |
| 522 | case 'float': |
| 523 | case 'float4': |
| 524 | case 'float8': |
| 525 | case 'double': |
| 526 | case 'double precision': |
| 527 | case 'real': |
| 528 | $type[] = 'float'; |
| 529 | break; |
| 530 | case 'decimal': |
| 531 | case 'money': |
| 532 | case 'numeric': |
| 533 | $type[] = 'decimal'; |
| 534 | break; |
| 535 | case 'tinyblob': |
| 536 | case 'mediumblob': |
| 537 | case 'longblob': |
| 538 | case 'blob': |
| 539 | case 'bytea': |
| 540 | $type[] = 'blob'; |
| 541 | $length = null; |
| 542 | break; |
| 543 | case 'oid': |
| 544 | $type[] = 'blob'; |
| 545 | $type[] = 'clob'; |
| 546 | $length = null; |
| 547 | break; |
| 548 | case 'year': |
| 549 | $type[] = 'integer'; |
| 550 | $type[] = 'date'; |
| 551 | $length = null; |
| 552 | break; |
| 553 | default: |
| 554 | throw new Doctrine_DataDict_Exception('unknown database attribute type: '.$dbType); |
| 555 | } |
| 556 | |
| 557 | return array('type' => $type, |
| 558 | 'length' => $length, |
| 559 | 'unsigned' => $unsigned, |
| 560 | 'fixed' => $fixed); |
| 561 | } |
| 562 | |
| 563 | /** |
| 564 | * Obtain DBMS specific SQL code portion needed to declare an integer type |
| 565 | * field to be used in statements like CREATE TABLE. |
| 566 | * |
| 567 | * @param string $name name the field to be declared. |
| 568 | * @param array $field associative array with the name of the properties |
| 569 | * of the field being declared as array indexes. Currently, the types |
| 570 | * of supported field properties are as follows: |
| 571 | * |
| 572 | * unsigned |
| 573 | * Boolean flag that indicates whether the field should be |
| 574 | * declared as unsigned integer if possible. |
| 575 | * |
| 576 | * default |
| 577 | * Integer value to be used as default for this field. |
| 578 | * |
| 579 | * notnull |
| 580 | * Boolean flag that indicates whether this field is constrained |
| 581 | * to not be set to null. |
| 582 | * @return string DBMS specific SQL code portion that should be used to |
| 583 | * declare the specified field. |
| 584 | */ |
| 585 | public function getIntegerDeclaration($name, $field) |
| 586 | { |
| 587 | /** |
| 588 | if ( ! empty($field['unsigned'])) { |
| 589 | $this->conn->warnings[] = "unsigned integer field \"$name\" is being declared as signed integer"; |
| 590 | } |
| 591 | */ |
| 592 | |
| 593 | if ( ! empty($field['autoincrement'])) { |
| 594 | $name = $this->conn->quoteIdentifier($name, true); |
| 595 | return $name . ' ' . $this->getNativeDeclaration($field); |
| 596 | } |
| 597 | |
| 598 | $default = ''; |
| 599 | if (array_key_exists('default', $field)) { |
| 600 | if ($field['default'] === '') { |
| 601 | $field['default'] = empty($field['notnull']) ? null : 0; |
| 602 | } |
| 603 | $default = ' DEFAULT '.$this->conn->quote($field['default'], $field['type']); |
| 604 | } |
| 605 | /** |
| 606 | TODO: is this needed ? |
| 607 | elseif (empty($field['notnull'])) { |
| 608 | $default = ' DEFAULT NULL'; |
| 609 | } |
| 610 | */ |
| 611 | |
| 612 | $notnull = empty($field['notnull']) ? '' : ' NOT NULL'; |
| 613 | $name = $this->conn->quoteIdentifier($name, true); |
| 614 | return $name . ' ' . $this->getNativeDeclaration($field) . $default . $notnull; |
| 615 | } |
| 616 | |
| 617 | /** |
| 618 | * parseBoolean |
| 619 | * parses a literal boolean value and returns |
| 620 | * proper sql equivalent |
| 621 | * |
| 622 | * @param string $value boolean value to be parsed |
| 623 | * @return string parsed boolean value |
| 624 | */ |
| 625 | public function parseBoolean($value) |
| 626 | { |
| 627 | return $value; |
| 628 | } |
| 629 | } |