| commit | author | age | ||
| c9462d | 1 | <?php |
| S | 2 | // vim: set et ts=4 sw=4 fdm=marker: |
| 3 | // +----------------------------------------------------------------------+ | |
| 4 | // | PHP versions 4 and 5 | | |
| 5 | // +----------------------------------------------------------------------+ | |
| 6 | // | Copyright (c) 1998-2004 Manuel Lemos, Tomas V.V.Cox, | | |
| 7 | // | Stig. S. Bakken, Lukas Smith | | |
| 8 | // | All rights reserved. | | |
| 9 | // +----------------------------------------------------------------------+ | |
| 10 | // | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB | | |
| 11 | // | API as well as database abstraction for PHP applications. | | |
| 12 | // | This LICENSE is in the BSD license style. | | |
| 13 | // | | | |
| 14 | // | Redistribution and use in source and binary forms, with or without | | |
| 15 | // | modification, are permitted provided that the following conditions | | |
| 16 | // | are met: | | |
| 17 | // | | | |
| 18 | // | Redistributions of source code must retain the above copyright | | |
| 19 | // | notice, this list of conditions and the following disclaimer. | | |
| 20 | // | | | |
| 21 | // | Redistributions in binary form must reproduce the above copyright | | |
| 22 | // | notice, this list of conditions and the following disclaimer in the | | |
| 23 | // | documentation and/or other materials provided with the distribution. | | |
| 24 | // | | | |
| 25 | // | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, | | |
| 26 | // | Lukas Smith nor the names of his contributors may be used to endorse | | |
| 27 | // | or promote products derived from this software without specific prior| | |
| 28 | // | written permission. | | |
| 29 | // | | | |
| 30 | // | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | | |
| 31 | // | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | | |
| 32 | // | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | | |
| 33 | // | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | | |
| 34 | // | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | | |
| 35 | // | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | | |
| 36 | // | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS| | |
| 37 | // | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | | |
| 38 | // | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | | |
| 39 | // | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY| | |
| 40 | // | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | | |
| 41 | // | POSSIBILITY OF SUCH DAMAGE. | | |
| 42 | // +----------------------------------------------------------------------+ | |
| 43 | // | Author: Lukas Smith <smith@backendmedia.com> | | |
| 44 | // +----------------------------------------------------------------------+ | |
| 45 | // | |
| 46 | // $Id$ | |
| 47 | // | |
| 48 | ||
| 49 | require_once 'MDB2/Driver/Datatype/Common.php'; | |
| 50 | ||
| 51 | /** | |
| 52 | * MDB2 SQLite driver | |
| 53 | * | |
| 54 | * @package MDB2 | |
| 55 | * @category Database | |
| 56 | * @author Lukas Smith <smith@backendmedia.com> | |
| 57 | */ | |
| 58 | class MDB2_Driver_Datatype_sqlite extends MDB2_Driver_Datatype_Common | |
| 59 | { | |
| 60 | // }}} | |
| 61 | // {{{ _getIntegerDeclaration() | |
| 62 | ||
| 63 | /** | |
| 64 | * Obtain DBMS specific SQL code portion needed to declare an integer type | |
| 65 | * field to be used in statements like CREATE TABLE. | |
| 66 | * | |
| 67 | * @param string $name name the field to be declared. | |
| 68 | * @param string $field associative array with the name of the properties | |
| 69 | * of the field being declared as array indexes. | |
| 70 | * Currently, the types of supported field | |
| 71 | * properties are as follows: | |
| 72 | * | |
| 73 | * unsigned | |
| 74 | * Boolean flag that indicates whether the field | |
| 75 | * should be declared as unsigned integer if | |
| 76 | * possible. | |
| 77 | * | |
| 78 | * default | |
| 79 | * Integer value to be used as default for this | |
| 80 | * field. | |
| 81 | * | |
| 82 | * notnull | |
| 83 | * Boolean flag that indicates whether this field is | |
| 84 | * constrained to not be set to null. | |
| 85 | * @return string DBMS specific SQL code portion that should be used to | |
| 86 | * declare the specified field. | |
| 87 | * @access protected | |
| 88 | */ | |
| 89 | function _getIntegerDeclaration($name, $field) | |
| 90 | { | |
| 91 | $db =& $GLOBALS['_MDB2_databases'][$this->db_index]; | |
| 92 | $unsigned = (isset($field['unsigned']) && $field['unsigned']) ? ' UNSIGNED' : ''; | |
| 93 | $default = isset($field['default']) ? ' DEFAULT '. | |
| 94 | $this->quote($field['default'], 'integer') : ''; | |
| 95 | $notnull = (isset($field['notnull']) && $field['notnull']) ? ' NOT NULL' : ''; | |
| 96 | return $name.' INT'.$unsigned.$default.$notnull; | |
| 97 | } | |
| 98 | ||
| 99 | // }}} | |
| 100 | // {{{ _getCLOBDeclaration() | |
| 101 | ||
| 102 | /** | |
| 103 | * Obtain DBMS specific SQL code portion needed to declare an character | |
| 104 | * large object type field to be used in statements like CREATE TABLE. | |
| 105 | * | |
| 106 | * @param string $name name the field to be declared. | |
| 107 | * @param string $field associative array with the name of the | |
| 108 | * properties of the field being declared as array | |
| 109 | * indexes. Currently, the types of supported field | |
| 110 | * properties are as follows: | |
| 111 | * | |
| 112 | * length | |
| 113 | * Integer value that determines the maximum length | |
| 114 | * of the large object field. If this argument is | |
| 115 | * missing the field should be declared to have the | |
| 116 | * longest length allowed by the DBMS. | |
| 117 | * | |
| 118 | * notnull | |
| 119 | * Boolean flag that indicates whether this field | |
| 120 | * is constrained to not be set to null. | |
| 121 | * @return string DBMS specific SQL code portion that should be used to | |
| 122 | * declare the specified field. | |
| 123 | * @access protected | |
| 124 | */ | |
| 125 | function _getCLOBDeclaration($name, $field) | |
| 126 | { | |
| 127 | $db =& $GLOBALS['_MDB2_databases'][$this->db_index]; | |
| 128 | if (isset($field['length'])) { | |
| 129 | $length = $field['length']; | |
| 130 | if ($length <= 255) { | |
| 131 | $type = 'TINYTEXT'; | |
| 132 | } else { | |
| 133 | if ($length <= 65535) { | |
| 134 | $type = 'TEXT'; | |
| 135 | } else { | |
| 136 | if ($length <= 16777215) { | |
| 137 | $type = 'MEDIUMTEXT'; | |
| 138 | } else { | |
| 139 | $type = 'LONGTEXT'; | |
| 140 | } | |
| 141 | } | |
| 142 | } | |
| 143 | } else { | |
| 144 | $type = 'LONGTEXT'; | |
| 145 | } | |
| 146 | $notnull = (isset($field['notnull']) && $field['notnull']) ? ' NOT NULL' : ''; | |
| 147 | return $name.' '.$type.$notnull; | |
| 148 | } | |
| 149 | ||
| 150 | // }}} | |
| 151 | // {{{ _getBLOBDeclaration() | |
| 152 | ||
| 153 | /** | |
| 154 | * Obtain DBMS specific SQL code portion needed to declare an binary large | |
| 155 | * object type field to be used in statements like CREATE TABLE. | |
| 156 | * | |
| 157 | * @param string $name name the field to be declared. | |
| 158 | * @param string $field associative array with the name of the properties | |
| 159 | * of the field being declared as array indexes. | |
| 160 | * Currently, the types of supported field | |
| 161 | * properties are as follows: | |
| 162 | * | |
| 163 | * length | |
| 164 | * Integer value that determines the maximum length | |
| 165 | * of the large object field. If this argument is | |
| 166 | * missing the field should be declared to have the | |
| 167 | * longest length allowed by the DBMS. | |
| 168 | * | |
| 169 | * notnull | |
| 170 | * Boolean flag that indicates whether this field is | |
| 171 | * constrained to not be set to null. | |
| 172 | * @return string DBMS specific SQL code portion that should be used to | |
| 173 | * declare the specified field. | |
| 174 | * @access protected | |
| 175 | */ | |
| 176 | function _getBLOBDeclaration($name, $field) | |
| 177 | { | |
| 178 | $db =& $GLOBALS['_MDB2_databases'][$this->db_index]; | |
| 179 | if (isset($field['length'])) { | |
| 180 | $length = $field['length']; | |
| 181 | if ($length <= 255) { | |
| 182 | $type = 'TINYBLOB'; | |
| 183 | } else { | |
| 184 | if ($length <= 65535) { | |
| 185 | $type = 'BLOB'; | |
| 186 | } else { | |
| 187 | if ($length <= 16777215) { | |
| 188 | $type = 'MEDIUMBLOB'; | |
| 189 | } else { | |
| 190 | $type = 'LONGBLOB'; | |
| 191 | } | |
| 192 | } | |
| 193 | } | |
| 194 | } | |
| 195 | else { | |
| 196 | $type = 'LONGBLOB'; | |
| 197 | } | |
| 198 | $notnull = (isset($field['notnull']) && $field['notnull']) ? ' NOT NULL' : ''; | |
| 199 | return $name.' '.$type.$notnull; | |
| 200 | } | |
| 201 | ||
| 202 | // }}} | |
| 203 | // {{{ _getDateDeclaration() | |
| 204 | ||
| 205 | /** | |
| 206 | * Obtain DBMS specific SQL code portion needed to declare an date type | |
| 207 | * field to be used in statements like CREATE TABLE. | |
| 208 | * | |
| 209 | * @param string $name name the field to be declared. | |
| 210 | * @param string $field associative array with the name of the properties | |
| 211 | * of the field being declared as array indexes. | |
| 212 | * Currently, the types of supported field properties | |
| 213 | * are as follows: | |
| 214 | * | |
| 215 | * default | |
| 216 | * Date value to be used as default for this field. | |
| 217 | * | |
| 218 | * notnull | |
| 219 | * Boolean flag that indicates whether this field is | |
| 220 | * constrained to not be set to null. | |
| 221 | * @return string DBMS specific SQL code portion that should be used to | |
| 222 | * declare the specified field. | |
| 223 | * @access protected | |
| 224 | */ | |
| 225 | function _getDateDeclaration($name, $field) | |
| 226 | { | |
| 227 | $db =& $GLOBALS['_MDB2_databases'][$this->db_index]; | |
| 228 | $default = isset($field['default']) ? ' DEFAULT '. | |
| 229 | $this->quote($field['default'], 'date') : ''; | |
| 230 | $notnull = (isset($field['notnull']) && $field['notnull']) ? ' NOT NULL' : ''; | |
| 231 | return $name.' DATE'.$default.$notnull; | |
| 232 | } | |
| 233 | ||
| 234 | // }}} | |
| 235 | // {{{ _getTimestampDeclaration() | |
| 236 | ||
| 237 | /** | |
| 238 | * Obtain DBMS specific SQL code portion needed to declare an timestamp | |
| 239 | * type field to be used in statements like CREATE TABLE. | |
| 240 | * | |
| 241 | * @param string $name name the field to be declared. | |
| 242 | * @param string $field associative array with the name of the properties | |
| 243 | * of the field being declared as array indexes. | |
| 244 | * Currently, the types of supported field | |
| 245 | * properties are as follows: | |
| 246 | * | |
| 247 | * default | |
| 248 | * Time stamp value to be used as default for this | |
| 249 | * field. | |
| 250 | * | |
| 251 | * notnull | |
| 252 | * Boolean flag that indicates whether this field is | |
| 253 | * constrained to not be set to null. | |
| 254 | * @return string DBMS specific SQL code portion that should be used to | |
| 255 | * declare the specified field. | |
| 256 | * @access protected | |
| 257 | */ | |
| 258 | function _getTimestampDeclaration($name, $field) | |
| 259 | { | |
| 260 | $db =& $GLOBALS['_MDB2_databases'][$this->db_index]; | |
| 261 | $default = isset($field['default']) ? ' DEFAULT '. | |
| 262 | $this->quote($field['default'], 'timestamp') : ''; | |
| 263 | $notnull = (isset($field['notnull']) && $field['notnull']) ? ' NOT NULL' : ''; | |
| 264 | return $name.' DATETIME'.$default.$notnull; | |
| 265 | } | |
| 266 | ||
| 267 | // }}} | |
| 268 | // {{{ _getTimeDeclaration() | |
| 269 | ||
| 270 | /** | |
| 271 | * Obtain DBMS specific SQL code portion needed to declare an time type | |
| 272 | * field to be used in statements like CREATE TABLE. | |
| 273 | * | |
| 274 | * @param string $name name the field to be declared. | |
| 275 | * @param string $field associative array with the name of the properties | |
| 276 | * of the field being declared as array indexes. | |
| 277 | * Currently, the types of supported field | |
| 278 | * properties are as follows: | |
| 279 | * | |
| 280 | * default | |
| 281 | * Time value to be used as default for this field. | |
| 282 | * | |
| 283 | * notnull | |
| 284 | * Boolean flag that indicates whether this field is | |
| 285 | * constrained to not be set to null. | |
| 286 | * @return string DBMS specific SQL code portion that should be used to | |
| 287 | * declare the specified field. | |
| 288 | * @access protected | |
| 289 | */ | |
| 290 | function _getTimeDeclaration($name, $field) | |
| 291 | { | |
| 292 | $db =& $GLOBALS['_MDB2_databases'][$this->db_index]; | |
| 293 | $default = isset($field['default']) ? ' DEFAULT '. | |
| 294 | $this->quote($field['default'], 'time') : ''; | |
| 295 | $notnull = (isset($field['notnull']) && $field['notnull']) ? ' NOT NULL' : ''; | |
| 296 | return $name.' TIME'.$default.$notnull; | |
| 297 | } | |
| 298 | ||
| 299 | // }}} | |
| 300 | // {{{ _getFloatDeclaration() | |
| 301 | ||
| 302 | /** | |
| 303 | * Obtain DBMS specific SQL code portion needed to declare an float type | |
| 304 | * field to be used in statements like CREATE TABLE. | |
| 305 | * | |
| 306 | * @param string $name name the field to be declared. | |
| 307 | * @param string $field associative array with the name of the properties | |
| 308 | * of the field being declared as array indexes. | |
| 309 | * Currently, the types of supported field | |
| 310 | * properties are as follows: | |
| 311 | * | |
| 312 | * default | |
| 313 | * Integer value to be used as default for this | |
| 314 | * field. | |
| 315 | * | |
| 316 | * notnull | |
| 317 | * Boolean flag that indicates whether this field is | |
| 318 | * constrained to not be set to null. | |
| 319 | * @return string DBMS specific SQL code portion that should be used to | |
| 320 | * declare the specified field. | |
| 321 | * @access protected | |
| 322 | */ | |
| 323 | function _getFloatDeclaration($name, $field) | |
| 324 | { | |
| 325 | $db =& $GLOBALS['_MDB2_databases'][$this->db_index]; | |
| 326 | $type = 'DOUBLE'.($db->options['fixed_float'] ? '('. | |
| 327 | ($db->options['fixed_float']+2).','.$db->options['fixed_float'].')' : ''); | |
| 328 | $default = isset($field['default']) ? ' DEFAULT '. | |
| 329 | $this->quote($field['default'], 'float') : ''; | |
| 330 | $notnull = (isset($field['notnull']) && $field['notnull']) ? ' NOT NULL' : ''; | |
| 331 | return $name.' '.$type.$default.$notnull; | |
| 332 | } | |
| 333 | ||
| 334 | // }}} | |
| 335 | // {{{ _getDecimalDeclaration() | |
| 336 | ||
| 337 | /** | |
| 338 | * Obtain DBMS specific SQL code portion needed to declare an decimal type | |
| 339 | * field to be used in statements like CREATE TABLE. | |
| 340 | * | |
| 341 | * @param string $name name the field to be declared. | |
| 342 | * @param string $field associative array with the name of the properties | |
| 343 | * of the field being declared as array indexes. | |
| 344 | * Currently, the types of supported field | |
| 345 | * properties are as follows: | |
| 346 | * | |
| 347 | * default | |
| 348 | * Integer value to be used as default for this | |
| 349 | * field. | |
| 350 | * | |
| 351 | * notnull | |
| 352 | * Boolean flag that indicates whether this field is | |
| 353 | * constrained to not be set to null. | |
| 354 | * @return string DBMS specific SQL code portion that should be used to | |
| 355 | * declare the specified field. | |
| 356 | * @access protected | |
| 357 | */ | |
| 358 | function _getDecimalDeclaration($name, $field) | |
| 359 | { | |
| 360 | $db =& $GLOBALS['_MDB2_databases'][$this->db_index]; | |
| 361 | $type = 'BIGINT'; | |
| 362 | $default = isset($field['default']) ? ' DEFAULT '. | |
| 363 | $this->quote($field['default'], 'decimal') : ''; | |
| 364 | $notnull = (isset($field['notnull']) && $field['notnull']) ? ' NOT NULL' : ''; | |
| 365 | return $name.' '.$type.$default.$notnull; | |
| 366 | } | |
| 367 | ||
| 368 | // }}} | |
| 369 | // {{{ _quoteFloat() | |
| 370 | ||
| 371 | /** | |
| 372 | * Convert a text value into a DBMS specific format that is suitable to | |
| 373 | * compose query statements. | |
| 374 | * | |
| 375 | * @param string $value text string value that is intended to be converted. | |
| 376 | * @return string text string that represents the given argument value in | |
| 377 | * a DBMS specific format. | |
| 378 | * @access protected | |
| 379 | */ | |
| 380 | function _quoteFloat($value) | |
| 381 | { | |
| 382 | return (float)$value; | |
| 383 | } | |
| 384 | ||
| 385 | // }}} | |
| 386 | // {{{ _quoteDecimal() | |
| 387 | ||
| 388 | /** | |
| 389 | * Convert a text value into a DBMS specific format that is suitable to | |
| 390 | * compose query statements. | |
| 391 | * | |
| 392 | * @param string $value text string value that is intended to be converted. | |
| 393 | * @return string text string that represents the given argument value in | |
| 394 | * a DBMS specific format. | |
| 395 | * @access protected | |
| 396 | */ | |
| 397 | function _quoteDecimal($value) | |
| 398 | { | |
| 399 | $db =& $GLOBALS['_MDB2_databases'][$this->db_index]; | |
| 400 | return $db->escape($value); | |
| 401 | } | |
| 402 | ||
| 403 | // }}} | |
| 404 | // {{{ mapNativeDatatype() | |
| 405 | ||
| 406 | /** | |
| 407 | * Maps a native array description of a field to a MDB2 datatype and length | |
| 408 | * | |
| 409 | * @param array $field native field description | |
| 410 | * @return array containing the various possible types and the length | |
| 411 | * @access public | |
| 412 | */ | |
| 413 | function mapNativeDatatype($field) | |
| 414 | { | |
| 415 | $db =& $GLOBALS['_MDB2_databases'][$this->db_index]; | |
| 416 | $db_type = $field['type']; | |
| 417 | $length = isset($field['length']) ? $field['length'] : null; | |
| 418 | $type = array(); | |
| 419 | switch ($db_type) { | |
| 420 | case 'tinyint': | |
| 421 | case 'smallint': | |
| 422 | case 'mediumint': | |
| 423 | case 'int': | |
| 424 | case 'integer': | |
| 425 | case 'bigint': | |
| 426 | $type[] = 'integer'; | |
| 427 | if ($length == '1') { | |
| 428 | $type[] = 'boolean'; | |
| 429 | if (preg_match('/^[is|has]/', $field['name'])) { | |
| 430 | $type = array_reverse($type); | |
| 431 | } | |
| 432 | } | |
| 433 | $type[] = 'decimal'; | |
| 434 | break; | |
| 435 | case 'tinytext': | |
| 436 | case 'mediumtext': | |
| 437 | case 'longtext': | |
| 438 | case 'text': | |
| 439 | case 'char': | |
| 440 | case 'varchar': | |
| 441 | case "varchar2": | |
| 442 | $type[] = 'text'; | |
| 443 | if ($length == '1') { | |
| 444 | $type[] = 'boolean'; | |
| 445 | if (preg_match('/[is|has]/', $field['name'])) { | |
| 446 | $type = array_reverse($type); | |
| 447 | } | |
| 448 | } elseif (strstr($db_type, 'text')) | |
| 449 | $type[] = 'clob'; | |
| 450 | break; | |
| 451 | case 'enum': | |
| 452 | preg_match_all('/\'.+\'/U',$row[$type_column], $matches); | |
| 453 | $length = 0; | |
| 454 | if (is_array($matches)) { | |
| 455 | foreach ($matches[0] as $value) { | |
| 456 | $length = max($length, strlen($value)-2); | |
| 457 | } | |
| 458 | } | |
| 459 | case 'set': | |
| 460 | $type[] = 'text'; | |
| 461 | $type[] = 'integer'; | |
| 462 | break; | |
| 463 | case 'date': | |
| 464 | $type[] = 'date'; | |
| 465 | $length = null; | |
| 466 | break; | |
| 467 | case 'datetime': | |
| 468 | case 'timestamp': | |
| 469 | $type[] = 'timestamp'; | |
| 470 | $length = null; | |
| 471 | break; | |
| 472 | case 'time': | |
| 473 | $type[] = 'time'; | |
| 474 | $length = null; | |
| 475 | break; | |
| 476 | case 'float': | |
| 477 | case 'double': | |
| 478 | case 'real': | |
| 479 | $type[] = 'float'; | |
| 480 | break; | |
| 481 | case 'decimal': | |
| 482 | case 'numeric': | |
| 483 | $type[] = 'decimal'; | |
| 484 | break; | |
| 485 | case 'tinyblob': | |
| 486 | case 'mediumblob': | |
| 487 | case 'longblob': | |
| 488 | case 'blob': | |
| 489 | $type[] = 'text'; | |
| 490 | $length = null; | |
| 491 | break; | |
| 492 | case 'year': | |
| 493 | $type[] = 'integer'; | |
| 494 | $type[] = 'date'; | |
| 495 | $length = null; | |
| 496 | break; | |
| 497 | default: | |
| 498 | return $db->raiseError(MDB2_ERROR, null, null, | |
| 499 | 'getTableFieldDefinition: unknown database attribute type'); | |
| 500 | } | |
| 501 | ||
| 502 | return array($type, $length); | |
| 503 | } | |
| 504 | } | |
| 505 | ||
| 506 | ?> | |
