pictcode / lib / Cake / Model / Datasource / Database / Sqlite.php @ 0b1b8047
履歴 | 表示 | アノテート | ダウンロード (15.911 KB)
| 1 |
<?php
|
|---|---|
| 2 |
/**
|
| 3 |
* SQLite layer for DBO
|
| 4 |
*
|
| 5 |
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
|
| 6 |
* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
|
| 7 |
*
|
| 8 |
* Licensed under The MIT License
|
| 9 |
* For full copyright and license information, please see the LICENSE.txt
|
| 10 |
* Redistributions of files must retain the above copyright notice.
|
| 11 |
*
|
| 12 |
* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
|
| 13 |
* @link http://cakephp.org CakePHP(tm) Project
|
| 14 |
* @package Cake.Model.Datasource.Database
|
| 15 |
* @since CakePHP(tm) v 0.9.0
|
| 16 |
* @license http://www.opensource.org/licenses/mit-license.php MIT License
|
| 17 |
*/
|
| 18 |
|
| 19 |
App::uses('DboSource', 'Model/Datasource'); |
| 20 |
App::uses('CakeText', 'Utility'); |
| 21 |
|
| 22 |
/**
|
| 23 |
* DBO implementation for the SQLite3 DBMS.
|
| 24 |
*
|
| 25 |
* A DboSource adapter for SQLite 3 using PDO
|
| 26 |
*
|
| 27 |
* @package Cake.Model.Datasource.Database
|
| 28 |
*/
|
| 29 |
class Sqlite extends DboSource { |
| 30 |
|
| 31 |
/**
|
| 32 |
* Datasource Description
|
| 33 |
*
|
| 34 |
* @var string
|
| 35 |
*/
|
| 36 |
public $description = "SQLite DBO Driver"; |
| 37 |
|
| 38 |
/**
|
| 39 |
* Quote Start
|
| 40 |
*
|
| 41 |
* @var string
|
| 42 |
*/
|
| 43 |
public $startQuote = '"'; |
| 44 |
|
| 45 |
/**
|
| 46 |
* Quote End
|
| 47 |
*
|
| 48 |
* @var string
|
| 49 |
*/
|
| 50 |
public $endQuote = '"'; |
| 51 |
|
| 52 |
/**
|
| 53 |
* Base configuration settings for SQLite3 driver
|
| 54 |
*
|
| 55 |
* @var array
|
| 56 |
*/
|
| 57 |
protected $_baseConfig = array( |
| 58 |
'persistent' => false, |
| 59 |
'database' => null, |
| 60 |
'flags' => array() |
| 61 |
); |
| 62 |
|
| 63 |
/**
|
| 64 |
* SQLite3 column definition
|
| 65 |
*
|
| 66 |
* @var array
|
| 67 |
*/
|
| 68 |
public $columns = array( |
| 69 |
'primary_key' => array('name' => 'integer primary key autoincrement'), |
| 70 |
'string' => array('name' => 'varchar', 'limit' => '255'), |
| 71 |
'text' => array('name' => 'text'), |
| 72 |
'integer' => array('name' => 'integer', 'limit' => null, 'formatter' => 'intval'), |
| 73 |
'biginteger' => array('name' => 'bigint', 'limit' => 20), |
| 74 |
'float' => array('name' => 'float', 'formatter' => 'floatval'), |
| 75 |
'decimal' => array('name' => 'decimal', 'formatter' => 'floatval'), |
| 76 |
'datetime' => array('name' => 'datetime', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'), |
| 77 |
'timestamp' => array('name' => 'timestamp', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'), |
| 78 |
'time' => array('name' => 'time', 'format' => 'H:i:s', 'formatter' => 'date'), |
| 79 |
'date' => array('name' => 'date', 'format' => 'Y-m-d', 'formatter' => 'date'), |
| 80 |
'binary' => array('name' => 'blob'), |
| 81 |
'boolean' => array('name' => 'boolean') |
| 82 |
); |
| 83 |
|
| 84 |
/**
|
| 85 |
* List of engine specific additional field parameters used on table creating
|
| 86 |
*
|
| 87 |
* @var array
|
| 88 |
*/
|
| 89 |
public $fieldParameters = array( |
| 90 |
'collate' => array( |
| 91 |
'value' => 'COLLATE', |
| 92 |
'quote' => false, |
| 93 |
'join' => ' ', |
| 94 |
'column' => 'Collate', |
| 95 |
'position' => 'afterDefault', |
| 96 |
'options' => array( |
| 97 |
'BINARY', 'NOCASE', 'RTRIM' |
| 98 |
) |
| 99 |
), |
| 100 |
); |
| 101 |
|
| 102 |
/**
|
| 103 |
* Connects to the database using config['database'] as a filename.
|
| 104 |
*
|
| 105 |
* @return bool
|
| 106 |
* @throws MissingConnectionException
|
| 107 |
*/
|
| 108 |
public function connect() { |
| 109 |
$config = $this->config; |
| 110 |
$flags = $config['flags'] + array( |
| 111 |
PDO::ATTR_PERSISTENT => $config['persistent'], |
| 112 |
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION |
| 113 |
); |
| 114 |
try {
|
| 115 |
$this->_connection = new PDO('sqlite:' . $config['database'], null, null, $flags); |
| 116 |
$this->connected = true; |
| 117 |
} catch(PDOException $e) { |
| 118 |
throw new MissingConnectionException(array( |
| 119 |
'class' => get_class($this), |
| 120 |
'message' => $e->getMessage() |
| 121 |
)); |
| 122 |
} |
| 123 |
return $this->connected; |
| 124 |
} |
| 125 |
|
| 126 |
/**
|
| 127 |
* Check whether the SQLite extension is installed/loaded
|
| 128 |
*
|
| 129 |
* @return bool
|
| 130 |
*/
|
| 131 |
public function enabled() { |
| 132 |
return in_array('sqlite', PDO::getAvailableDrivers()); |
| 133 |
} |
| 134 |
|
| 135 |
/**
|
| 136 |
* Returns an array of tables in the database. If there are no tables, an error is raised and the application exits.
|
| 137 |
*
|
| 138 |
* @param mixed $data Unused.
|
| 139 |
* @return array Array of table names in the database
|
| 140 |
*/
|
| 141 |
public function listSources($data = null) { |
| 142 |
$cache = parent::listSources(); |
| 143 |
if ($cache) { |
| 144 |
return $cache; |
| 145 |
} |
| 146 |
|
| 147 |
$result = $this->fetchAll("SELECT name FROM sqlite_master WHERE type='table' ORDER BY name;", false); |
| 148 |
|
| 149 |
if (!$result || empty($result)) { |
| 150 |
return array(); |
| 151 |
} |
| 152 |
|
| 153 |
$tables = array(); |
| 154 |
foreach ($result as $table) { |
| 155 |
$tables[] = $table[0]['name']; |
| 156 |
} |
| 157 |
parent::listSources($tables); |
| 158 |
return $tables; |
| 159 |
} |
| 160 |
|
| 161 |
/**
|
| 162 |
* Returns an array of the fields in given table name.
|
| 163 |
*
|
| 164 |
* @param Model|string $model Either the model or table name you want described.
|
| 165 |
* @return array Fields in table. Keys are name and type
|
| 166 |
*/
|
| 167 |
public function describe($model) { |
| 168 |
$table = $this->fullTableName($model, false, false); |
| 169 |
$cache = parent::describe($table); |
| 170 |
if ($cache) { |
| 171 |
return $cache; |
| 172 |
} |
| 173 |
$fields = array(); |
| 174 |
$result = $this->_execute( |
| 175 |
'PRAGMA table_info(' . $this->value($table, 'string') . ')' |
| 176 |
); |
| 177 |
|
| 178 |
foreach ($result as $column) { |
| 179 |
$column = (array)$column; |
| 180 |
$default = ($column['dflt_value'] === 'NULL') ? null : trim($column['dflt_value'], "'"); |
| 181 |
|
| 182 |
$fields[$column['name']] = array( |
| 183 |
'type' => $this->column($column['type']), |
| 184 |
'null' => !$column['notnull'], |
| 185 |
'default' => $default, |
| 186 |
'length' => $this->length($column['type']) |
| 187 |
); |
| 188 |
if ($column['pk'] == 1) { |
| 189 |
$fields[$column['name']]['key'] = $this->index['PRI']; |
| 190 |
$fields[$column['name']]['null'] = false; |
| 191 |
if (empty($fields[$column['name']]['length'])) { |
| 192 |
$fields[$column['name']]['length'] = 11; |
| 193 |
} |
| 194 |
} |
| 195 |
} |
| 196 |
|
| 197 |
$result->closeCursor();
|
| 198 |
$this->_cacheDescription($table, $fields); |
| 199 |
return $fields; |
| 200 |
} |
| 201 |
|
| 202 |
/**
|
| 203 |
* Generates and executes an SQL UPDATE statement for given model, fields, and values.
|
| 204 |
*
|
| 205 |
* @param Model $model The model instance to update.
|
| 206 |
* @param array $fields The fields to update.
|
| 207 |
* @param array $values The values to set columns to.
|
| 208 |
* @param mixed $conditions array of conditions to use.
|
| 209 |
* @return array
|
| 210 |
*/
|
| 211 |
public function update(Model $model, $fields = array(), $values = null, $conditions = null) { |
| 212 |
if (empty($values) && !empty($fields)) { |
| 213 |
foreach ($fields as $field => $value) { |
| 214 |
if (strpos($field, $model->alias . '.') !== false) { |
| 215 |
unset($fields[$field]); |
| 216 |
$field = str_replace($model->alias . '.', "", $field); |
| 217 |
$field = str_replace($model->alias . '.', "", $field); |
| 218 |
$fields[$field] = $value; |
| 219 |
} |
| 220 |
} |
| 221 |
} |
| 222 |
return parent::update($model, $fields, $values, $conditions); |
| 223 |
} |
| 224 |
|
| 225 |
/**
|
| 226 |
* Deletes all the records in a table and resets the count of the auto-incrementing
|
| 227 |
* primary key, where applicable.
|
| 228 |
*
|
| 229 |
* @param string|Model $table A string or model class representing the table to be truncated
|
| 230 |
* @return bool SQL TRUNCATE TABLE statement, false if not applicable.
|
| 231 |
*/
|
| 232 |
public function truncate($table) { |
| 233 |
if (in_array('sqlite_sequence', $this->listSources())) { |
| 234 |
$this->_execute('DELETE FROM sqlite_sequence where name=' . $this->startQuote . $this->fullTableName($table, false, false) . $this->endQuote); |
| 235 |
} |
| 236 |
return $this->execute('DELETE FROM ' . $this->fullTableName($table)); |
| 237 |
} |
| 238 |
|
| 239 |
/**
|
| 240 |
* Converts database-layer column types to basic types
|
| 241 |
*
|
| 242 |
* @param string $real Real database-layer column type (i.e. "varchar(255)")
|
| 243 |
* @return string Abstract column type (i.e. "string")
|
| 244 |
*/
|
| 245 |
public function column($real) { |
| 246 |
if (is_array($real)) { |
| 247 |
$col = $real['name']; |
| 248 |
if (isset($real['limit'])) { |
| 249 |
$col .= '(' . $real['limit'] . ')'; |
| 250 |
} |
| 251 |
return $col; |
| 252 |
} |
| 253 |
|
| 254 |
$col = strtolower(str_replace(')', '', $real)); |
| 255 |
if (strpos($col, '(') !== false) { |
| 256 |
list($col) = explode('(', $col); |
| 257 |
} |
| 258 |
|
| 259 |
$standard = array( |
| 260 |
'text',
|
| 261 |
'integer',
|
| 262 |
'float',
|
| 263 |
'boolean',
|
| 264 |
'timestamp',
|
| 265 |
'date',
|
| 266 |
'datetime',
|
| 267 |
'time'
|
| 268 |
); |
| 269 |
if (in_array($col, $standard)) { |
| 270 |
return $col; |
| 271 |
} |
| 272 |
if ($col === 'bigint') { |
| 273 |
return 'biginteger'; |
| 274 |
} |
| 275 |
if (strpos($col, 'char') !== false) { |
| 276 |
return 'string'; |
| 277 |
} |
| 278 |
if (in_array($col, array('blob', 'clob'))) { |
| 279 |
return 'binary'; |
| 280 |
} |
| 281 |
if (strpos($col, 'numeric') !== false || strpos($col, 'decimal') !== false) { |
| 282 |
return 'decimal'; |
| 283 |
} |
| 284 |
return 'text'; |
| 285 |
} |
| 286 |
|
| 287 |
/**
|
| 288 |
* Generate ResultSet
|
| 289 |
*
|
| 290 |
* @param mixed $results The results to modify.
|
| 291 |
* @return void
|
| 292 |
*/
|
| 293 |
public function resultSet($results) { |
| 294 |
$this->results = $results; |
| 295 |
$this->map = array(); |
| 296 |
$numFields = $results->columnCount(); |
| 297 |
$index = 0; |
| 298 |
$j = 0; |
| 299 |
|
| 300 |
// PDO::getColumnMeta is experimental and does not work with sqlite3,
|
| 301 |
// so try to figure it out based on the querystring
|
| 302 |
$querystring = $results->queryString; |
| 303 |
if (stripos($querystring, 'SELECT') === 0 && stripos($querystring, 'FROM') > 0) { |
| 304 |
$selectpart = substr($querystring, 7); |
| 305 |
$selects = array(); |
| 306 |
foreach (CakeText::tokenize($selectpart, ',', '(', ')') as $part) { |
| 307 |
$fromPos = stripos($part, ' FROM '); |
| 308 |
if ($fromPos !== false) { |
| 309 |
$selects[] = trim(substr($part, 0, $fromPos)); |
| 310 |
break;
|
| 311 |
} |
| 312 |
$selects[] = $part; |
| 313 |
} |
| 314 |
} elseif (strpos($querystring, 'PRAGMA table_info') === 0) { |
| 315 |
$selects = array('cid', 'name', 'type', 'notnull', 'dflt_value', 'pk'); |
| 316 |
} elseif (strpos($querystring, 'PRAGMA index_list') === 0) { |
| 317 |
$selects = array('seq', 'name', 'unique'); |
| 318 |
} elseif (strpos($querystring, 'PRAGMA index_info') === 0) { |
| 319 |
$selects = array('seqno', 'cid', 'name'); |
| 320 |
} |
| 321 |
while ($j < $numFields) { |
| 322 |
if (!isset($selects[$j])) { |
| 323 |
$j++;
|
| 324 |
continue;
|
| 325 |
} |
| 326 |
if (preg_match('/\bAS(?!.*\bAS\b)\s+(.*)/i', $selects[$j], $matches)) { |
| 327 |
$columnName = trim($matches[1], '"'); |
| 328 |
} else {
|
| 329 |
$columnName = trim(str_replace('"', '', $selects[$j])); |
| 330 |
} |
| 331 |
|
| 332 |
if (strpos($selects[$j], 'DISTINCT') === 0) { |
| 333 |
$columnName = str_ireplace('DISTINCT', '', $columnName); |
| 334 |
} |
| 335 |
|
| 336 |
$metaType = false; |
| 337 |
try {
|
| 338 |
$metaData = (array)$results->getColumnMeta($j); |
| 339 |
if (!empty($metaData['sqlite:decl_type'])) { |
| 340 |
$metaType = trim($metaData['sqlite:decl_type']); |
| 341 |
} |
| 342 |
} catch (Exception $e) { |
| 343 |
} |
| 344 |
|
| 345 |
if (strpos($columnName, '.')) { |
| 346 |
$parts = explode('.', $columnName); |
| 347 |
$this->map[$index++] = array(trim($parts[0]), trim($parts[1]), $metaType); |
| 348 |
} else {
|
| 349 |
$this->map[$index++] = array(0, $columnName, $metaType); |
| 350 |
} |
| 351 |
$j++;
|
| 352 |
} |
| 353 |
} |
| 354 |
|
| 355 |
/**
|
| 356 |
* Fetches the next row from the current result set
|
| 357 |
*
|
| 358 |
* @return mixed array with results fetched and mapped to column names or false if there is no results left to fetch
|
| 359 |
*/
|
| 360 |
public function fetchResult() { |
| 361 |
if ($row = $this->_result->fetch(PDO::FETCH_NUM)) { |
| 362 |
$resultRow = array(); |
| 363 |
foreach ($this->map as $col => $meta) { |
| 364 |
list($table, $column, $type) = $meta; |
| 365 |
$resultRow[$table][$column] = $row[$col]; |
| 366 |
if ($type === 'boolean' && $row[$col] !== null) { |
| 367 |
$resultRow[$table][$column] = $this->boolean($resultRow[$table][$column]); |
| 368 |
} |
| 369 |
} |
| 370 |
return $resultRow; |
| 371 |
} |
| 372 |
$this->_result->closeCursor();
|
| 373 |
return false; |
| 374 |
} |
| 375 |
|
| 376 |
/**
|
| 377 |
* Returns a limit statement in the correct format for the particular database.
|
| 378 |
*
|
| 379 |
* @param int $limit Limit of results returned
|
| 380 |
* @param int $offset Offset from which to start results
|
| 381 |
* @return string SQL limit/offset statement
|
| 382 |
*/
|
| 383 |
public function limit($limit, $offset = null) { |
| 384 |
if ($limit) { |
| 385 |
$rt = sprintf(' LIMIT %u', $limit); |
| 386 |
if ($offset) { |
| 387 |
$rt .= sprintf(' OFFSET %u', $offset); |
| 388 |
} |
| 389 |
return $rt; |
| 390 |
} |
| 391 |
return null; |
| 392 |
} |
| 393 |
|
| 394 |
/**
|
| 395 |
* Generate a database-native column schema string
|
| 396 |
*
|
| 397 |
* @param array $column An array structured like the following: array('name'=>'value', 'type'=>'value'[, options]),
|
| 398 |
* where options can be 'default', 'length', or 'key'.
|
| 399 |
* @return string
|
| 400 |
*/
|
| 401 |
public function buildColumn($column) { |
| 402 |
$name = $type = null; |
| 403 |
$column += array('null' => true); |
| 404 |
extract($column); |
| 405 |
|
| 406 |
if (empty($name) || empty($type)) { |
| 407 |
trigger_error(__d('cake_dev', 'Column name or type not defined in schema'), E_USER_WARNING); |
| 408 |
return null; |
| 409 |
} |
| 410 |
|
| 411 |
if (!isset($this->columns[$type])) { |
| 412 |
trigger_error(__d('cake_dev', 'Column type %s does not exist', $type), E_USER_WARNING); |
| 413 |
return null; |
| 414 |
} |
| 415 |
|
| 416 |
$isPrimary = (isset($column['key']) && $column['key'] === 'primary'); |
| 417 |
if ($isPrimary && $type === 'integer') { |
| 418 |
return $this->name($name) . ' ' . $this->columns['primary_key']['name']; |
| 419 |
} |
| 420 |
$out = parent::buildColumn($column); |
| 421 |
if ($isPrimary && $type === 'biginteger') { |
| 422 |
$replacement = 'PRIMARY KEY'; |
| 423 |
if ($column['null'] === false) { |
| 424 |
$replacement = 'NOT NULL ' . $replacement; |
| 425 |
} |
| 426 |
return str_replace($this->columns['primary_key']['name'], $replacement, $out); |
| 427 |
} |
| 428 |
return $out; |
| 429 |
} |
| 430 |
|
| 431 |
/**
|
| 432 |
* Sets the database encoding
|
| 433 |
*
|
| 434 |
* @param string $enc Database encoding
|
| 435 |
* @return bool
|
| 436 |
*/
|
| 437 |
public function setEncoding($enc) { |
| 438 |
if (!in_array($enc, array("UTF-8", "UTF-16", "UTF-16le", "UTF-16be"))) { |
| 439 |
return false; |
| 440 |
} |
| 441 |
return $this->_execute("PRAGMA encoding = \"{$enc}\"") !== false; |
| 442 |
} |
| 443 |
|
| 444 |
/**
|
| 445 |
* Gets the database encoding
|
| 446 |
*
|
| 447 |
* @return string The database encoding
|
| 448 |
*/
|
| 449 |
public function getEncoding() { |
| 450 |
return $this->fetchRow('PRAGMA encoding'); |
| 451 |
} |
| 452 |
|
| 453 |
/**
|
| 454 |
* Removes redundant primary key indexes, as they are handled in the column def of the key.
|
| 455 |
*
|
| 456 |
* @param array $indexes The indexes to build.
|
| 457 |
* @param string $table The table name.
|
| 458 |
* @return string The completed index.
|
| 459 |
*/
|
| 460 |
public function buildIndex($indexes, $table = null) { |
| 461 |
$join = array(); |
| 462 |
|
| 463 |
$table = str_replace('"', '', $table); |
| 464 |
list($dbname, $table) = explode('.', $table); |
| 465 |
$dbname = $this->name($dbname); |
| 466 |
|
| 467 |
foreach ($indexes as $name => $value) { |
| 468 |
|
| 469 |
if ($name === 'PRIMARY') { |
| 470 |
continue;
|
| 471 |
} |
| 472 |
$out = 'CREATE '; |
| 473 |
|
| 474 |
if (!empty($value['unique'])) { |
| 475 |
$out .= 'UNIQUE '; |
| 476 |
} |
| 477 |
if (is_array($value['column'])) { |
| 478 |
$value['column'] = implode(', ', array_map(array(&$this, 'name'), $value['column'])); |
| 479 |
} else {
|
| 480 |
$value['column'] = $this->name($value['column']); |
| 481 |
} |
| 482 |
$t = trim($table, '"'); |
| 483 |
$indexname = $this->name($t . '_' . $name); |
| 484 |
$table = $this->name($table); |
| 485 |
$out .= "INDEX {$dbname}.{$indexname} ON {$table}({$value['column']});"; |
| 486 |
$join[] = $out; |
| 487 |
} |
| 488 |
return $join; |
| 489 |
} |
| 490 |
|
| 491 |
/**
|
| 492 |
* Overrides DboSource::index to handle SQLite index introspection
|
| 493 |
* Returns an array of the indexes in given table name.
|
| 494 |
*
|
| 495 |
* @param string $model Name of model to inspect
|
| 496 |
* @return array Fields in table. Keys are column and unique
|
| 497 |
*/
|
| 498 |
public function index($model) { |
| 499 |
$index = array(); |
| 500 |
$table = $this->fullTableName($model, false, false); |
| 501 |
if ($table) { |
| 502 |
$indexes = $this->query('PRAGMA index_list(' . $table . ')'); |
| 503 |
|
| 504 |
if (is_bool($indexes)) { |
| 505 |
return array(); |
| 506 |
} |
| 507 |
foreach ($indexes as $info) { |
| 508 |
$key = array_pop($info); |
| 509 |
$keyInfo = $this->query('PRAGMA index_info("' . $key['name'] . '")'); |
| 510 |
foreach ($keyInfo as $keyCol) { |
| 511 |
if (!isset($index[$key['name']])) { |
| 512 |
$col = array(); |
| 513 |
if (preg_match('/autoindex/', $key['name'])) { |
| 514 |
$key['name'] = 'PRIMARY'; |
| 515 |
} |
| 516 |
$index[$key['name']]['column'] = $keyCol[0]['name']; |
| 517 |
$index[$key['name']]['unique'] = (int)$key['unique'] === 1; |
| 518 |
} else {
|
| 519 |
if (!is_array($index[$key['name']]['column'])) { |
| 520 |
$col[] = $index[$key['name']]['column']; |
| 521 |
} |
| 522 |
$col[] = $keyCol[0]['name']; |
| 523 |
$index[$key['name']]['column'] = $col; |
| 524 |
} |
| 525 |
} |
| 526 |
} |
| 527 |
} |
| 528 |
return $index; |
| 529 |
} |
| 530 |
|
| 531 |
/**
|
| 532 |
* Overrides DboSource::renderStatement to handle schema generation with SQLite-style indexes
|
| 533 |
*
|
| 534 |
* @param string $type The type of statement being rendered.
|
| 535 |
* @param array $data The data to convert to SQL.
|
| 536 |
* @return string
|
| 537 |
*/
|
| 538 |
public function renderStatement($type, $data) { |
| 539 |
switch (strtolower($type)) { |
| 540 |
case 'schema': |
| 541 |
extract($data); |
| 542 |
if (is_array($columns)) { |
| 543 |
$columns = "\t" . implode(",\n\t", array_filter($columns)); |
| 544 |
} |
| 545 |
if (is_array($indexes)) { |
| 546 |
$indexes = "\t" . implode("\n\t", array_filter($indexes)); |
| 547 |
} |
| 548 |
return "CREATE TABLE {$table} (\n{$columns});\n{$indexes}"; |
| 549 |
default:
|
| 550 |
return parent::renderStatement($type, $data); |
| 551 |
} |
| 552 |
} |
| 553 |
|
| 554 |
/**
|
| 555 |
* PDO deals in objects, not resources, so overload accordingly.
|
| 556 |
*
|
| 557 |
* @return bool
|
| 558 |
*/
|
| 559 |
public function hasResult() { |
| 560 |
return is_object($this->_result); |
| 561 |
} |
| 562 |
|
| 563 |
/**
|
| 564 |
* Generate a "drop table" statement for the given table
|
| 565 |
*
|
| 566 |
* @param type $table Name of the table to drop
|
| 567 |
* @return string Drop table SQL statement
|
| 568 |
*/
|
| 569 |
protected function _dropTable($table) { |
| 570 |
return 'DROP TABLE IF EXISTS ' . $this->fullTableName($table) . ";"; |
| 571 |
} |
| 572 |
|
| 573 |
/**
|
| 574 |
* Gets the schema name
|
| 575 |
*
|
| 576 |
* @return string The schema name
|
| 577 |
*/
|
| 578 |
public function getSchemaName() { |
| 579 |
return "main"; // Sqlite Datasource does not support multidb |
| 580 |
} |
| 581 |
|
| 582 |
/**
|
| 583 |
* Check if the server support nested transactions
|
| 584 |
*
|
| 585 |
* @return bool
|
| 586 |
*/
|
| 587 |
public function nestedTransactionSupported() { |
| 588 |
return $this->useNestedTransactions && version_compare($this->getVersion(), '3.6.8', '>='); |
| 589 |
} |
| 590 |
|
| 591 |
} |