| 1 | <?php |
| 2 | /* |
| 3 | * $Id: Manager.php 2963 2007-10-21 06:23:59Z Jonathan.Wage $ |
| 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.com>. |
| 20 | */ |
| 21 | |
| 22 | /** |
| 23 | * |
| 24 | * Doctrine_Manager is the base component of all doctrine based projects. |
| 25 | * It opens and keeps track of all connections (database connections). |
| 26 | * |
| 27 | * @package Doctrine |
| 28 | * @subpackage Manager |
| 29 | * @license http://www.opensource.org/licenses/lgpl-license.php LGPL |
| 30 | * @link www.phpdoctrine.com |
| 31 | * @since 1.0 |
| 32 | * @version $Revision: 2963 $ |
| 33 | * @author Konsta Vesterinen <kvesteri@cc.hut.fi> |
| 34 | */ |
| 35 | class Doctrine_Manager extends Doctrine_Configurable implements Countable, IteratorAggregate |
| 36 | { |
| 37 | /** |
| 38 | * @var array $connections an array containing all the opened connections |
| 39 | */ |
| 40 | protected $_connections = array(); |
| 41 | |
| 42 | /** |
| 43 | * @var array $bound an array containing all components that have a bound connection |
| 44 | */ |
| 45 | protected $_bound = array(); |
| 46 | |
| 47 | /** |
| 48 | * @var integer $index the incremented index |
| 49 | */ |
| 50 | protected $_index = 0; |
| 51 | |
| 52 | /** |
| 53 | * @var integer $currIndex the current connection index |
| 54 | */ |
| 55 | protected $_currIndex = 0; |
| 56 | |
| 57 | /** |
| 58 | * @var string $root root directory |
| 59 | */ |
| 60 | protected $_root; |
| 61 | |
| 62 | /** |
| 63 | * @var Doctrine_Query_Registry the query registry |
| 64 | */ |
| 65 | protected $_queryRegistry; |
| 66 | |
| 67 | protected static $driverMap = array('oci' => 'oracle'); |
| 68 | |
| 69 | /** |
| 70 | * constructor |
| 71 | * |
| 72 | * this is private constructor (use getInstance to get an instance of this class) |
| 73 | */ |
| 74 | private function __construct() |
| 75 | { |
| 76 | $this->_root = dirname(__FILE__); |
| 77 | |
| 78 | Doctrine_Locator_Injectable::initNullObject(new Doctrine_Null); |
| 79 | } |
| 80 | |
| 81 | /** |
| 82 | * setDefaultAttributes |
| 83 | * sets default attributes |
| 84 | * |
| 85 | * @return boolean |
| 86 | */ |
| 87 | public function setDefaultAttributes() |
| 88 | { |
| 89 | static $init = false; |
| 90 | if ( ! $init) { |
| 91 | $init = true; |
| 92 | $attributes = array( |
| 93 | Doctrine::ATTR_CACHE => null, |
| 94 | Doctrine::ATTR_LOAD_REFERENCES => true, |
| 95 | Doctrine::ATTR_LISTENER => new Doctrine_EventListener(), |
| 96 | Doctrine::ATTR_RECORD_LISTENER => new Doctrine_Record_Listener(), |
| 97 | Doctrine::ATTR_THROW_EXCEPTIONS => true, |
| 98 | Doctrine::ATTR_VALIDATE => Doctrine::VALIDATE_NONE, |
| 99 | Doctrine::ATTR_QUERY_LIMIT => Doctrine::LIMIT_RECORDS, |
| 100 | Doctrine::ATTR_IDXNAME_FORMAT => "%s_idx", |
| 101 | Doctrine::ATTR_SEQNAME_FORMAT => "%s_seq", |
| 102 | Doctrine::ATTR_QUOTE_IDENTIFIER => false, |
| 103 | Doctrine::ATTR_SEQCOL_NAME => 'id', |
| 104 | Doctrine::ATTR_PORTABILITY => Doctrine::PORTABILITY_ALL, |
| 105 | Doctrine::ATTR_EXPORT => Doctrine::EXPORT_ALL, |
| 106 | Doctrine::ATTR_DECIMAL_PLACES => 2, |
| 107 | ); |
| 108 | foreach ($attributes as $attribute => $value) { |
| 109 | $old = $this->getAttribute($attribute); |
| 110 | if ($old === null) { |
| 111 | $this->setAttribute($attribute,$value); |
| 112 | } |
| 113 | } |
| 114 | return true; |
| 115 | } |
| 116 | return false; |
| 117 | } |
| 118 | |
| 119 | /** |
| 120 | * returns the root directory of Doctrine |
| 121 | * |
| 122 | * @return string |
| 123 | */ |
| 124 | final public function getRoot() |
| 125 | { |
| 126 | return $this->_root; |
| 127 | } |
| 128 | |
| 129 | /** |
| 130 | * getInstance |
| 131 | * returns an instance of this class |
| 132 | * (this class uses the singleton pattern) |
| 133 | * |
| 134 | * @return Doctrine_Manager |
| 135 | */ |
| 136 | public static function getInstance() |
| 137 | { |
| 138 | static $instance; |
| 139 | if ( ! isset($instance)) { |
| 140 | $instance = new self(); |
| 141 | } |
| 142 | return $instance; |
| 143 | } |
| 144 | |
| 145 | /** |
| 146 | * getQueryRegistry |
| 147 | * lazy-initializes the query registry object and returns it |
| 148 | * |
| 149 | * @return Doctrine_Query_Registry |
| 150 | */ |
| 151 | public function getQueryRegistry() |
| 152 | { |
| 153 | if ( ! isset($this->_queryRegistry)) { |
| 154 | $this->_queryRegistry = new Doctrine_Query_Registry; |
| 155 | } |
| 156 | return $this->_queryRegistry; |
| 157 | } |
| 158 | |
| 159 | /** |
| 160 | * setQueryRegistry |
| 161 | * sets the query registry |
| 162 | * |
| 163 | * @return Doctrine_Manager this object |
| 164 | */ |
| 165 | public function setQueryRegistry(Doctrine_Query_Registry $registry) |
| 166 | { |
| 167 | $this->_queryRegistry = $registry; |
| 168 | |
| 169 | return $this; |
| 170 | } |
| 171 | |
| 172 | /** |
| 173 | * fetch |
| 174 | * fetches data using the provided queryKey and |
| 175 | * the associated query in the query registry |
| 176 | * |
| 177 | * if no query for given queryKey is being found a |
| 178 | * Doctrine_Query_Registry exception is being thrown |
| 179 | * |
| 180 | * @param string $queryKey the query key |
| 181 | * @param array $params prepared statement params (if any) |
| 182 | * @return mixed the fetched data |
| 183 | */ |
| 184 | public function find($queryKey, $params = array(), $hydrationMode = Doctrine::HYDRATE_RECORD) |
| 185 | { |
| 186 | return Doctrine_Manager::getInstance() |
| 187 | ->getQueryRegistry() |
| 188 | ->get($queryKey) |
| 189 | ->execute($params, $hydrationMode); |
| 190 | } |
| 191 | |
| 192 | /** |
| 193 | * fetchOne |
| 194 | * fetches data using the provided queryKey and |
| 195 | * the associated query in the query registry |
| 196 | * |
| 197 | * if no query for given queryKey is being found a |
| 198 | * Doctrine_Query_Registry exception is being thrown |
| 199 | * |
| 200 | * @param string $queryKey the query key |
| 201 | * @param array $params prepared statement params (if any) |
| 202 | * @return mixed the fetched data |
| 203 | */ |
| 204 | public function findOne($queryKey, $params = array(), $hydrationMode = Doctrine::HYDRATE_RECORD) |
| 205 | { |
| 206 | return Doctrine_Manager::getInstance() |
| 207 | ->getQueryRegistry() |
| 208 | ->get($queryKey) |
| 209 | ->fetchOne($params, $hydrationMode); |
| 210 | } |
| 211 | |
| 212 | /** |
| 213 | * connection |
| 214 | * |
| 215 | * if the adapter parameter is set this method acts as |
| 216 | * a short cut for Doctrine_Manager::getInstance()->openConnection($adapter, $name); |
| 217 | * |
| 218 | * if the adapter paramater is not set this method acts as |
| 219 | * a short cut for Doctrine_Manager::getInstance()->getCurrentConnection() |
| 220 | * |
| 221 | * @param PDO|Doctrine_Adapter_Interface $adapter database driver |
| 222 | * @param string $name name of the connection, if empty numeric key is used |
| 223 | * @throws Doctrine_Manager_Exception if trying to bind a connection with an existing name |
| 224 | * @return Doctrine_Connection |
| 225 | */ |
| 226 | public static function connection($adapter = null, $name = null) |
| 227 | { |
| 228 | if ($adapter == null) { |
| 229 | return Doctrine_Manager::getInstance()->getCurrentConnection(); |
| 230 | } else { |
| 231 | return Doctrine_Manager::getInstance()->openConnection($adapter, $name); |
| 232 | } |
| 233 | } |
| 234 | |
| 235 | /** |
| 236 | * openConnection |
| 237 | * opens a new connection and saves it to Doctrine_Manager->connections |
| 238 | * |
| 239 | * @param PDO|Doctrine_Adapter_Interface $adapter database driver |
| 240 | * @param string $name name of the connection, if empty numeric key is used |
| 241 | * @throws Doctrine_Manager_Exception if trying to bind a connection with an existing name |
| 242 | * @throws Doctrine_Manager_Exception if trying to open connection for unknown driver |
| 243 | * @return Doctrine_Connection |
| 244 | */ |
| 245 | public function openConnection($adapter, $name = null, $setCurrent = true) |
| 246 | { |
| 247 | if (is_object($adapter)) { |
| 248 | if ( ! ($adapter instanceof PDO) && ! in_array('Doctrine_Adapter_Interface', class_implements($adapter))) { |
| 249 | throw new Doctrine_Manager_Exception("First argument should be an instance of PDO or implement Doctrine_Adapter_Interface"); |
| 250 | } |
| 251 | |
| 252 | $driverName = $adapter->getAttribute(Doctrine::ATTR_DRIVER_NAME); |
| 253 | } elseif (is_array($adapter)) { |
| 254 | if ( ! isset($adapter[0])) { |
| 255 | throw new Doctrine_Manager_Exception('Empty data source name given.'); |
| 256 | } |
| 257 | $e = explode(':', $adapter[0]); |
| 258 | |
| 259 | if ($e[0] == 'uri') { |
| 260 | $e[0] = 'odbc'; |
| 261 | } |
| 262 | |
| 263 | $parts['dsn'] = $adapter[0]; |
| 264 | $parts['scheme'] = $e[0]; |
| 265 | $parts['user'] = (isset($adapter[1])) ? $adapter[1] : null; |
| 266 | $parts['pass'] = (isset($adapter[2])) ? $adapter[2] : null; |
| 267 | |
| 268 | $driverName = $e[0]; |
| 269 | $adapter = $parts; |
| 270 | } else { |
| 271 | $parts = $this->parseDsn($adapter); |
| 272 | |
| 273 | $driverName = $parts['scheme']; |
| 274 | |
| 275 | $adapter = $parts; |
| 276 | } |
| 277 | |
| 278 | // initialize the default attributes |
| 279 | $this->setDefaultAttributes(); |
| 280 | |
| 281 | if ($name !== null) { |
| 282 | $name = (string) $name; |
| 283 | if (isset($this->_connections[$name])) { |
| 284 | return $this->_connections[$name]; |
| 285 | } |
| 286 | } else { |
| 287 | $name = $this->_index; |
| 288 | $this->_index++; |
| 289 | } |
| 290 | |
| 291 | |
| 292 | $drivers = array('mysql' => 'Doctrine_Connection_Mysql', |
| 293 | 'sqlite' => 'Doctrine_Connection_Sqlite', |
| 294 | 'pgsql' => 'Doctrine_Connection_Pgsql', |
| 295 | 'oci' => 'Doctrine_Connection_Oracle', |
| 296 | 'oci8' => 'Doctrine_Connection_Oracle', |
| 297 | 'oracle' => 'Doctrine_Connection_Oracle', |
| 298 | 'mssql' => 'Doctrine_Connection_Mssql', |
| 299 | 'dblib' => 'Doctrine_Connection_Mssql', |
| 300 | 'firebird' => 'Doctrine_Connection_Firebird', |
| 301 | 'informix' => 'Doctrine_Connection_Informix', |
| 302 | 'mock' => 'Doctrine_Connection_Mock'); |
| 303 | if ( ! isset($drivers[$driverName])) { |
| 304 | throw new Doctrine_Manager_Exception('Unknown driver ' . $driverName); |
| 305 | } |
| 306 | |
| 307 | $className = $drivers[$driverName]; |
| 308 | $conn = new $className($this, $adapter); |
| 309 | |
| 310 | $this->_connections[$name] = $conn; |
| 311 | |
| 312 | if ($setCurrent) { |
| 313 | $this->_currIndex = $name; |
| 314 | } |
| 315 | return $this->_connections[$name]; |
| 316 | } |
| 317 | |
| 318 | public function parsePdoDsn($dsn) |
| 319 | { |
| 320 | $parts = array(); |
| 321 | |
| 322 | $names = array('dsn', 'scheme', 'host', 'port', 'user', 'pass', 'path', 'query', 'fragment'); |
| 323 | |
| 324 | foreach ($names as $name) { |
| 325 | if ( ! isset($parts[$name])) { |
| 326 | $parts[$name] = null; |
| 327 | } |
| 328 | } |
| 329 | |
| 330 | $e = explode(':', $dsn); |
| 331 | $parts['scheme'] = $e[0]; |
| 332 | $parts['dsn'] = $dsn; |
| 333 | |
| 334 | $e = explode(';', $e[1]); |
| 335 | foreach ($e as $string) { |
| 336 | list($key, $value) = explode('=', $string); |
| 337 | $parts[$key] = $value; |
| 338 | } |
| 339 | |
| 340 | return $parts; |
| 341 | } |
| 342 | |
| 343 | /** |
| 344 | * parseDsn |
| 345 | * |
| 346 | * @param string $dsn |
| 347 | * @return array Parsed contents of DSN |
| 348 | */ |
| 349 | public function parseDsn($dsn) |
| 350 | { |
| 351 | // silence any warnings |
| 352 | $parts = @parse_url($dsn); |
| 353 | |
| 354 | $names = array('dsn', 'scheme', 'host', 'port', 'user', 'pass', 'path', 'query', 'fragment'); |
| 355 | |
| 356 | foreach ($names as $name) { |
| 357 | if ( ! isset($parts[$name])) { |
| 358 | $parts[$name] = null; |
| 359 | } |
| 360 | } |
| 361 | |
| 362 | if (count($parts) == 0 || ! isset($parts['scheme'])) { |
| 363 | throw new Doctrine_Manager_Exception('Empty data source name'); |
| 364 | } |
| 365 | |
| 366 | switch ($parts['scheme']) { |
| 367 | case 'sqlite': |
| 368 | case 'sqlite2': |
| 369 | case 'sqlite3': |
| 370 | if (isset($parts['host']) && $parts['host'] == ':memory') { |
| 371 | $parts['database'] = ':memory:'; |
| 372 | $parts['dsn'] = 'sqlite::memory:'; |
| 373 | } else { |
| 374 | $parts['database'] = $parts['path']; |
| 375 | $parts['dsn'] = $parts['scheme'] . ':' . $parts['path']; |
| 376 | } |
| 377 | |
| 378 | break; |
| 379 | |
| 380 | case 'mssql': |
| 381 | case 'dblib': |
| 382 | if ( ! isset($parts['path']) || $parts['path'] == '/') { |
| 383 | throw new Doctrine_Manager_Exception('No database available in data source name'); |
| 384 | } |
| 385 | if (isset($parts['path'])) { |
| 386 | $parts['database'] = substr($parts['path'], 1); |
| 387 | } |
| 388 | if ( ! isset($parts['host'])) { |
| 389 | throw new Doctrine_Manager_Exception('No hostname set in data source name'); |
| 390 | } |
| 391 | |
| 392 | if (isset(self::$driverMap[$parts['scheme']])) { |
| 393 | $parts['scheme'] = self::$driverMap[$parts['scheme']]; |
| 394 | } |
| 395 | |
| 396 | $parts['dsn'] = $parts['scheme'] . ':host=' |
| 397 | . $parts['host'] . (isset($parts['port']) ? ':' . $parts['port']:null) . ';dbname=' |
| 398 | . $parts['database']; |
| 399 | |
| 400 | break; |
| 401 | |
| 402 | case 'mysql': |
| 403 | case 'informix': |
| 404 | case 'oci8': |
| 405 | case 'oci': |
| 406 | case 'firebird': |
| 407 | case 'pgsql': |
| 408 | case 'odbc': |
| 409 | case 'mock': |
| 410 | case 'oracle': |
| 411 | if ( ! isset($parts['path']) || $parts['path'] == '/') { |
| 412 | throw new Doctrine_Manager_Exception('No database available in data source name'); |
| 413 | } |
| 414 | if (isset($parts['path'])) { |
| 415 | $parts['database'] = substr($parts['path'], 1); |
| 416 | } |
| 417 | if ( ! isset($parts['host'])) { |
| 418 | throw new Doctrine_Manager_Exception('No hostname set in data source name'); |
| 419 | } |
| 420 | |
| 421 | if (isset(self::$driverMap[$parts['scheme']])) { |
| 422 | $parts['scheme'] = self::$driverMap[$parts['scheme']]; |
| 423 | } |
| 424 | |
| 425 | $parts['dsn'] = $parts['scheme'] . ':host=' |
| 426 | . $parts['host'] . (isset($parts['port']) ? ';port=' . $parts['port']:null) . ';dbname=' |
| 427 | . $parts['database']; |
| 428 | |
| 429 | break; |
| 430 | default: |
| 431 | throw new Doctrine_Manager_Exception('Unknown driver '.$parts['scheme']); |
| 432 | } |
| 433 | |
| 434 | |
| 435 | return $parts; |
| 436 | } |
| 437 | |
| 438 | /** |
| 439 | * getConnection |
| 440 | * @param integer $index |
| 441 | * @return object Doctrine_Connection |
| 442 | * @throws Doctrine_Manager_Exception if trying to get a non-existent connection |
| 443 | */ |
| 444 | public function getConnection($name) |
| 445 | { |
| 446 | if ( ! isset($this->_connections[$name])) { |
| 447 | throw new Doctrine_Manager_Exception('Unknown connection: ' . $name); |
| 448 | } |
| 449 | |
| 450 | return $this->_connections[$name]; |
| 451 | } |
| 452 | |
| 453 | /** |
| 454 | * getComponentAlias |
| 455 | * retrieves the alias for given component name |
| 456 | * if the alias couldn't be found, this method returns the given |
| 457 | * component name |
| 458 | * |
| 459 | * @param string $componentName |
| 460 | * @return string the component alias |
| 461 | */ |
| 462 | public function getComponentAlias($componentName) |
| 463 | { |
| 464 | if (isset($this->componentAliases[$componentName])) { |
| 465 | return $this->componentAliases[$componentName]; |
| 466 | } |
| 467 | |
| 468 | return $componentName; |
| 469 | } |
| 470 | |
| 471 | /** |
| 472 | * sets an alias for given component name |
| 473 | * very useful when building a large framework with a possibility |
| 474 | * to override any given class |
| 475 | * |
| 476 | * @param string $componentName the name of the component |
| 477 | * @param string $alias |
| 478 | * @return Doctrine_Manager |
| 479 | */ |
| 480 | public function setComponentAlias($componentName, $alias) |
| 481 | { |
| 482 | $this->componentAliases[$componentName] = $alias; |
| 483 | |
| 484 | return $this; |
| 485 | } |
| 486 | |
| 487 | /** |
| 488 | * getConnectionName |
| 489 | * |
| 490 | * @param Doctrine_Connection $conn connection object to be searched for |
| 491 | * @return string the name of the connection |
| 492 | */ |
| 493 | public function getConnectionName(Doctrine_Connection $conn) |
| 494 | { |
| 495 | return array_search($conn, $this->_connections, true); |
| 496 | } |
| 497 | |
| 498 | /** |
| 499 | * bindComponent |
| 500 | * binds given component to given connection |
| 501 | * this means that when ever the given component uses a connection |
| 502 | * it will be using the bound connection instead of the current connection |
| 503 | * |
| 504 | * @param string $componentName |
| 505 | * @param string $connectionName |
| 506 | * @return boolean |
| 507 | */ |
| 508 | public function bindComponent($componentName, $connectionName) |
| 509 | { |
| 510 | $this->_bound[$componentName] = $connectionName; |
| 511 | } |
| 512 | |
| 513 | /** |
| 514 | * getConnectionForComponent |
| 515 | * |
| 516 | * @param string $componentName |
| 517 | * @return Doctrine_Connection |
| 518 | */ |
| 519 | public function getConnectionForComponent($componentName = null) |
| 520 | { |
| 521 | if (isset($this->_bound[$componentName])) { |
| 522 | return $this->getConnection($this->_bound[$componentName]); |
| 523 | } |
| 524 | return $this->getCurrentConnection(); |
| 525 | } |
| 526 | |
| 527 | /** |
| 528 | * getTable |
| 529 | * this is the same as Doctrine_Connection::getTable() except |
| 530 | * that it works seamlessly in multi-server/connection environment |
| 531 | * |
| 532 | * @see Doctrine_Connection::getTable() |
| 533 | * @param string $componentName |
| 534 | * @return Doctrine_Table |
| 535 | */ |
| 536 | public function getTable($componentName) |
| 537 | { |
| 538 | return $this->getConnectionForComponent($componentName)->getTable($componentName); |
| 539 | } |
| 540 | |
| 541 | /** |
| 542 | * table |
| 543 | * this is the same as Doctrine_Connection::getTable() except |
| 544 | * that it works seamlessly in multi-server/connection environment |
| 545 | * |
| 546 | * @see Doctrine_Connection::getTable() |
| 547 | * @param string $componentName |
| 548 | * @return Doctrine_Table |
| 549 | */ |
| 550 | public static function table($componentName) |
| 551 | { |
| 552 | return Doctrine_Manager::getInstance() |
| 553 | ->getConnectionForComponent($componentName) |
| 554 | ->getTable($componentName); |
| 555 | } |
| 556 | |
| 557 | /** |
| 558 | * closes the connection |
| 559 | * |
| 560 | * @param Doctrine_Connection $connection |
| 561 | * @return void |
| 562 | */ |
| 563 | public function closeConnection(Doctrine_Connection $connection) |
| 564 | { |
| 565 | $connection->close(); |
| 566 | |
| 567 | $key = array_search($connection, $this->_connections, true); |
| 568 | |
| 569 | if ($key !== false) { |
| 570 | unset($this->_connections[$key]); |
| 571 | } |
| 572 | $this->_currIndex = key($this->_connections); |
| 573 | |
| 574 | unset($connection); |
| 575 | } |
| 576 | |
| 577 | /** |
| 578 | * getConnections |
| 579 | * returns all opened connections |
| 580 | * |
| 581 | * @return array |
| 582 | */ |
| 583 | public function getConnections() |
| 584 | { |
| 585 | return $this->_connections; |
| 586 | } |
| 587 | |
| 588 | /** |
| 589 | * setCurrentConnection |
| 590 | * sets the current connection to $key |
| 591 | * |
| 592 | * @param mixed $key the connection key |
| 593 | * @throws InvalidKeyException |
| 594 | * @return void |
| 595 | */ |
| 596 | public function setCurrentConnection($key) |
| 597 | { |
| 598 | $key = (string) $key; |
| 599 | if ( ! isset($this->_connections[$key])) { |
| 600 | throw new InvalidKeyException(); |
| 601 | } |
| 602 | $this->_currIndex = $key; |
| 603 | } |
| 604 | |
| 605 | /** |
| 606 | * contains |
| 607 | * whether or not the manager contains specified connection |
| 608 | * |
| 609 | * @param mixed $key the connection key |
| 610 | * @return boolean |
| 611 | */ |
| 612 | public function contains($key) |
| 613 | { |
| 614 | return isset($this->_connections[$key]); |
| 615 | } |
| 616 | |
| 617 | /** |
| 618 | * count |
| 619 | * returns the number of opened connections |
| 620 | * |
| 621 | * @return integer |
| 622 | */ |
| 623 | public function count() |
| 624 | { |
| 625 | return count($this->_connections); |
| 626 | } |
| 627 | |
| 628 | /** |
| 629 | * getIterator |
| 630 | * returns an ArrayIterator that iterates through all connections |
| 631 | * |
| 632 | * @return ArrayIterator |
| 633 | */ |
| 634 | public function getIterator() |
| 635 | { |
| 636 | return new ArrayIterator($this->_connections); |
| 637 | } |
| 638 | |
| 639 | /** |
| 640 | * getCurrentConnection |
| 641 | * returns the current connection |
| 642 | * |
| 643 | * @throws Doctrine_Connection_Exception if there are no open connections |
| 644 | * @return Doctrine_Connection |
| 645 | */ |
| 646 | public function getCurrentConnection() |
| 647 | { |
| 648 | $i = $this->_currIndex; |
| 649 | if ( ! isset($this->_connections[$i])) { |
| 650 | throw new Doctrine_Connection_Exception(); |
| 651 | } |
| 652 | return $this->_connections[$i]; |
| 653 | } |
| 654 | |
| 655 | /** |
| 656 | * __toString |
| 657 | * returns a string representation of this object |
| 658 | * |
| 659 | * @return string |
| 660 | */ |
| 661 | public function __toString() |
| 662 | { |
| 663 | $r[] = "<pre>"; |
| 664 | $r[] = "Doctrine_Manager"; |
| 665 | $r[] = "Connections : ".count($this->_connections); |
| 666 | $r[] = "</pre>"; |
| 667 | return implode("\n",$r); |
| 668 | } |
| 669 | } |