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Developer Documentation
- Bug fixes for general core bugs in 3.11.x will end 14 Nov 2022 (12 months plus 6 months extension).
- Bug fixes for security issues in 3.11.x will end 13 Nov 2023 (18 months plus 12 months extension).
- PHP version: minimum PHP 7.3.0 Note: minimum PHP version has increased since Moodle 3.10. PHP 7.4.x is supported too.
Differences Between: [Versions 311 and 402] [Versions 311 and 403]
1 <?php 2 3 namespace IMSGlobal\LTI\ToolProvider\DataConnector; 4 5 use IMSGlobal\LTI\ToolProvider; 6 use IMSGlobal\LTI\ToolProvider\ConsumerNonce; 7 use IMSGlobal\LTI\ToolProvider\Context; 8 use IMSGlobal\LTI\ToolProvider\ResourceLink; 9 use IMSGlobal\LTI\ToolProvider\ResourceLinkShareKey; 10 use IMSGlobal\LTI\ToolProvider\ToolConsumer; 11 use IMSGlobal\LTI\ToolProvider\User; 12 use PDO; 13 14 /** 15 * Class to represent an LTI Data Connector for PDO connections 16 * 17 * @author Stephen P Vickers <svickers@imsglobal.org> 18 * @copyright IMS Global Learning Consortium Inc 19 * @date 2016 20 * @version 3.0.0 21 * @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0 22 */ 23 24 25 class DataConnector_pdo extends DataConnector 26 { 27 28 /** 29 * Class constructor 30 * 31 * @param object $db Database connection object 32 * @param string $dbTableNamePrefix Prefix for database table names (optional, default is none) 33 */ 34 public function __construct($db, $dbTableNamePrefix = '') 35 { 36 37 parent::__construct($db, $dbTableNamePrefix); 38 if ($db->getAttribute(PDO::ATTR_DRIVER_NAME) == 'oci') { 39 $this->date_format = 'd-M-Y'; 40 } 41 42 } 43 44 ### 45 ### ToolConsumer methods 46 ### 47 48 /** 49 * Load tool consumer object. 50 * 51 * @param ToolConsumer $consumer ToolConsumer object 52 * 53 * @return boolean True if the tool consumer object was successfully loaded 54 */ 55 public function loadToolConsumer($consumer) 56 { 57 58 $ok = false; 59 if (!empty($consumer->getRecordId())) { 60 $sql = 'SELECT consumer_pk, name, consumer_key256, consumer_key, secret, lti_version, ' . 61 'consumer_name, consumer_version, consumer_guid, ' . 62 'profile, tool_proxy, settings, protected, enabled, ' . 63 'enable_from, enable_until, last_access, created, updated ' . 64 "FROM {$this->dbTableNamePrefix}" . DataConnector::CONSUMER_TABLE_NAME . ' ' . 65 'WHERE consumer_pk = :id'; 66 $query = $this->db->prepare($sql); 67 $id = $consumer->getRecordId(); 68 $query->bindValue('id', $id, PDO::PARAM_INT); 69 } else { 70 $sql = 'SELECT consumer_pk, name, consumer_key256, consumer_key, secret, lti_version, ' . 71 'consumer_name, consumer_version, consumer_guid, ' . 72 'profile, tool_proxy, settings, protected, enabled, ' . 73 'enable_from, enable_until, last_access, created, updated ' . 74 "FROM {$this->dbTableNamePrefix}" . DataConnector::CONSUMER_TABLE_NAME . ' ' . 75 'WHERE consumer_key256 = :key256'; 76 $query = $this->db->prepare($sql); 77 $key256 = DataConnector::getConsumerKey($consumer->getKey()); 78 $query->bindValue('key256', $key256, PDO::PARAM_STR); 79 } 80 81 if ($query->execute()) { 82 while ($row = $query->fetch(PDO::FETCH_ASSOC)) { 83 $row = array_change_key_case($row); 84 if (empty($key256) || empty($row['consumer_key']) || ($consumer->getKey() === $row['consumer_key'])) { 85 $consumer->setRecordId(intval($row['consumer_pk'])); 86 $consumer->name = $row['name']; 87 $consumer->setkey(empty($row['consumer_key']) ? $row['consumer_key256'] : $row['consumer_key']); 88 $consumer->secret = $row['secret']; 89 $consumer->ltiVersion = $row['lti_version']; 90 $consumer->consumerName = $row['consumer_name']; 91 $consumer->consumerVersion = $row['consumer_version']; 92 $consumer->consumerGuid = $row['consumer_guid']; 93 $consumer->profile = json_decode($row['profile']); 94 $consumer->toolProxy = $row['tool_proxy']; 95 $settings = unserialize($row['settings']); 96 if (!is_array($settings)) { 97 $settings = array(); 98 } 99 $consumer->setSettings($settings); 100 $consumer->protected = (intval($row['protected']) === 1); 101 $consumer->enabled = (intval($row['enabled']) === 1); 102 $consumer->enableFrom = null; 103 if (!is_null($row['enable_from'])) { 104 $consumer->enableFrom = strtotime($row['enable_from']); 105 } 106 $consumer->enableUntil = null; 107 if (!is_null($row['enable_until'])) { 108 $consumer->enableUntil = strtotime($row['enable_until']); 109 } 110 $consumer->lastAccess = null; 111 if (!is_null($row['last_access'])) { 112 $consumer->lastAccess = strtotime($row['last_access']); 113 } 114 $consumer->created = strtotime($row['created']); 115 $consumer->updated = strtotime($row['updated']); 116 $ok = true; 117 break; 118 } 119 } 120 } 121 122 return $ok; 123 124 } 125 126 /** 127 * Save tool consumer object. 128 * 129 * @param ToolConsumer $consumer Consumer object 130 * 131 * @return boolean True if the tool consumer object was successfully saved 132 */ 133 public function saveToolConsumer($consumer) 134 { 135 136 $id = $consumer->getRecordId(); 137 $key = $consumer->getKey(); 138 $key256 = $this->getConsumerKey($key); 139 if ($key === $key256) { 140 $key = null; 141 } 142 $protected = ($consumer->protected) ? 1 : 0; 143 $enabled = ($consumer->enabled)? 1 : 0; 144 $profile = (!empty($consumer->profile)) ? json_encode($consumer->profile) : null; 145 $settingsValue = serialize($consumer->getSettings()); 146 $time = time(); 147 $now = date("{$this->dateFormat} {$this->timeFormat}", $time); 148 $from = null; 149 if (!is_null($consumer->enableFrom)) { 150 $from = date("{$this->dateFormat} {$this->timeFormat}", $consumer->enableFrom); 151 } 152 $until = null; 153 if (!is_null($consumer->enableUntil)) { 154 $until = date("{$this->dateFormat} {$this->timeFormat}", $consumer->enableUntil); 155 } 156 $last = null; 157 if (!is_null($consumer->lastAccess)) { 158 $last = date($this->dateFormat, $consumer->lastAccess); 159 } 160 if (empty($id)) { 161 $sql = "INSERT INTO {$this->dbTableNamePrefix}" . DataConnector::CONSUMER_TABLE_NAME . ' (consumer_key256, consumer_key, name, ' . 162 'secret, lti_version, consumer_name, consumer_version, consumer_guid, profile, tool_proxy, settings, protected, enabled, ' . 163 'enable_from, enable_until, last_access, created, updated) ' . 164 'VALUES (:key256, :key, :name, :secret, :lti_version, :consumer_name, :consumer_version, :consumer_guid, :profile, :tool_proxy, :settings, ' . 165 ':protected, :enabled, :enable_from, :enable_until, :last_access, :created, :updated)'; 166 $query = $this->db->prepare($sql); 167 $query->bindValue('key256', $key256, PDO::PARAM_STR); 168 $query->bindValue('key', $key, PDO::PARAM_STR); 169 $query->bindValue('name', $consumer->name, PDO::PARAM_STR); 170 $query->bindValue('secret', $consumer->secret, PDO::PARAM_STR); 171 $query->bindValue('lti_version', $consumer->ltiVersion, PDO::PARAM_STR); 172 $query->bindValue('consumer_name', $consumer->consumerName, PDO::PARAM_STR); 173 $query->bindValue('consumer_version', $consumer->consumerVersion, PDO::PARAM_STR); 174 $query->bindValue('consumer_guid', $consumer->consumerGuid, PDO::PARAM_STR); 175 $query->bindValue('profile', $profile, PDO::PARAM_STR); 176 $query->bindValue('tool_proxy', $consumer->toolProxy, PDO::PARAM_STR); 177 $query->bindValue('settings', $settingsValue, PDO::PARAM_STR); 178 $query->bindValue('protected', $protected, PDO::PARAM_INT); 179 $query->bindValue('enabled', $enabled, PDO::PARAM_INT); 180 $query->bindValue('enable_from', $from, PDO::PARAM_STR); 181 $query->bindValue('enable_until', $until, PDO::PARAM_STR); 182 $query->bindValue('last_access', $last, PDO::PARAM_STR); 183 $query->bindValue('created', $now, PDO::PARAM_STR); 184 $query->bindValue('updated', $now, PDO::PARAM_STR); 185 } else { 186 $sql = 'UPDATE ' . $this->dbTableNamePrefix . DataConnector::CONSUMER_TABLE_NAME . ' ' . 187 'SET consumer_key256 = :key256, consumer_key = :key, name = :name, secret = :secret, lti_version = :lti_version, ' . 188 'consumer_name = :consumer_name, consumer_version = :consumer_version, consumer_guid = :consumer_guid, ' . 189 'profile = :profile, tool_proxy = :tool_proxy, settings = :settings, ' . 190 'protected = :protected, enabled = :enabled, enable_from = :enable_from, enable_until = :enable_until, last_access = :last_access, updated = :updated ' . 191 'WHERE consumer_pk = :id'; 192 $query = $this->db->prepare($sql); 193 $query->bindValue('key256', $key256, PDO::PARAM_STR); 194 $query->bindValue('key', $key, PDO::PARAM_STR); 195 $query->bindValue('name', $consumer->name, PDO::PARAM_STR); 196 $query->bindValue('secret', $consumer->secret, PDO::PARAM_STR); 197 $query->bindValue('lti_version', $consumer->ltiVersion, PDO::PARAM_STR); 198 $query->bindValue('consumer_name', $consumer->consumerName, PDO::PARAM_STR); 199 $query->bindValue('consumer_version', $consumer->consumerVersion, PDO::PARAM_STR); 200 $query->bindValue('consumer_guid', $consumer->consumerGuid, PDO::PARAM_STR); 201 $query->bindValue('profile', $profile, PDO::PARAM_STR); 202 $query->bindValue('tool_proxy', $consumer->toolProxy, PDO::PARAM_STR); 203 $query->bindValue('settings', $settingsValue, PDO::PARAM_STR); 204 $query->bindValue('protected', $protected, PDO::PARAM_INT); 205 $query->bindValue('enabled', $enabled, PDO::PARAM_INT); 206 $query->bindValue('enable_from', $from, PDO::PARAM_STR); 207 $query->bindValue('enable_until', $until, PDO::PARAM_STR); 208 $query->bindValue('last_access', $last, PDO::PARAM_STR); 209 $query->bindValue('updated', $now, PDO::PARAM_STR); 210 $query->bindValue('id', $id, PDO::PARAM_INT); 211 } 212 $ok = $query->execute(); 213 if ($ok) { 214 if (empty($id)) { 215 $consumer->setRecordId(intval($this->db->lastInsertId())); 216 $consumer->created = $time; 217 } 218 $consumer->updated = $time; 219 } 220 221 return $ok; 222 223 } 224 225 /** 226 * Delete tool consumer object. 227 * 228 * @param ToolConsumer $consumer Consumer object 229 * 230 * @return boolean True if the tool consumer object was successfully deleted 231 */ 232 public function deleteToolConsumer($consumer) 233 { 234 235 $id = $consumer->getRecordId(); 236 237 // Delete any nonce values for this consumer 238 $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::NONCE_TABLE_NAME . ' WHERE consumer_pk = :id'; 239 $query = $this->db->prepare($sql); 240 $query->bindValue('id', $id, PDO::PARAM_INT); 241 $query->execute(); 242 243 // Delete any outstanding share keys for resource links for this consumer 244 $sql = 'DELETE sk ' . 245 "FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_SHARE_KEY_TABLE_NAME . ' sk ' . 246 "INNER JOIN {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ON sk.resource_link_pk = rl.resource_link_pk ' . 247 'WHERE rl.consumer_pk = :id'; 248 $query = $this->db->prepare($sql); 249 $query->bindValue('id', $id, PDO::PARAM_INT); 250 $query->execute(); 251 252 // Delete any outstanding share keys for resource links for contexts in this consumer 253 $sql = 'DELETE sk ' . 254 "FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_SHARE_KEY_TABLE_NAME . ' sk ' . 255 "INNER JOIN {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ON sk.resource_link_pk = rl.resource_link_pk ' . 256 "INNER JOIN {$this->dbTableNamePrefix}" . DataConnector::CONTEXT_TABLE_NAME . ' c ON rl.context_pk = c.context_pk ' . 257 'WHERE c.consumer_pk = :id'; 258 $query = $this->db->prepare($sql); 259 $query->bindValue('id', $id, PDO::PARAM_INT); 260 $query->execute(); 261 262 // Delete any users in resource links for this consumer 263 $sql = 'DELETE u ' . 264 "FROM {$this->dbTableNamePrefix}" . DataConnector::USER_RESULT_TABLE_NAME . ' u ' . 265 "INNER JOIN {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ON u.resource_link_pk = rl.resource_link_pk ' . 266 'WHERE rl.consumer_pk = :id'; 267 $query = $this->db->prepare($sql); 268 $query->bindValue('id', $id, PDO::PARAM_INT); 269 $query->execute(); 270 271 // Delete any users in resource links for contexts in this consumer 272 $sql = 'DELETE u ' . 273 "FROM {$this->dbTableNamePrefix}" . DataConnector::USER_RESULT_TABLE_NAME . ' u ' . 274 "INNER JOIN {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ON u.resource_link_pk = rl.resource_link_pk ' . 275 "INNER JOIN {$this->dbTableNamePrefix}" . DataConnector::CONTEXT_TABLE_NAME . ' c ON rl.context_pk = c.context_pk ' . 276 'WHERE c.consumer_pk = :id'; 277 $query = $this->db->prepare($sql); 278 $query->bindValue('id', $id, PDO::PARAM_INT); 279 $query->execute(); 280 281 // Update any resource links for which this consumer is acting as a primary resource link 282 $sql = "UPDATE {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' prl ' . 283 "INNER JOIN {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ON prl.primary_resource_link_pk = rl.resource_link_pk ' . 284 'SET prl.primary_resource_link_pk = NULL, prl.share_approved = NULL ' . 285 'WHERE rl.consumer_pk = :id'; 286 $query = $this->db->prepare($sql); 287 $query->bindValue('id', $id, PDO::PARAM_INT); 288 $query->execute(); 289 290 // Update any resource links for contexts in which this consumer is acting as a primary resource link 291 $sql = "UPDATE {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' prl ' . 292 "INNER JOIN {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ON prl.primary_resource_link_pk = rl.resource_link_pk ' . 293 "INNER JOIN {$this->dbTableNamePrefix}" . DataConnector::CONTEXT_TABLE_NAME . ' c ON rl.context_pk = c.context_pk ' . 294 'SET prl.primary_resource_link_pk = NULL, prl.share_approved = NULL ' . 295 'WHERE c.consumer_pk = :id'; 296 $query = $this->db->prepare($sql); 297 $query->bindValue('id', $id, PDO::PARAM_INT); 298 $query->execute(); 299 300 // Delete any resource links for this consumer 301 $sql = 'DELETE rl ' . 302 "FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ' . 303 'WHERE rl.consumer_pk = :id'; 304 $query = $this->db->prepare($sql); 305 $query->bindValue('id', $id, PDO::PARAM_INT); 306 $query->execute(); 307 308 // Delete any resource links for contexts in this consumer 309 $sql = 'DELETE rl ' . 310 "FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ' . 311 "INNER JOIN {$this->dbTableNamePrefix}" . DataConnector::CONTEXT_TABLE_NAME . ' c ON rl.context_pk = c.context_pk ' . 312 'WHERE c.consumer_pk = :id'; 313 $query = $this->db->prepare($sql); 314 $query->bindValue('id', $id, PDO::PARAM_INT); 315 $query->execute(); 316 317 // Delete any contexts for this consumer 318 $sql = 'DELETE c ' . 319 "FROM {$this->dbTableNamePrefix}" . DataConnector::CONTEXT_TABLE_NAME . ' c ' . 320 'WHERE c.consumer_pk = :id'; 321 $query = $this->db->prepare($sql); 322 $query->bindValue('id', $id, PDO::PARAM_INT); 323 $query->execute(); 324 325 // Delete consumer 326 $sql = 'DELETE c ' . 327 "FROM {$this->dbTableNamePrefix}" . DataConnector::CONSUMER_TABLE_NAME . ' c ' . 328 'WHERE c.consumer_pk = :id'; 329 $query = $this->db->prepare($sql); 330 $query->bindValue('id', $id, PDO::PARAM_INT); 331 $ok = $query->execute(); 332 333 if ($ok) { 334 $consumer->initialize(); 335 } 336 337 return $ok; 338 339 } 340 341 ### 342 # Load all tool consumers from the database 343 ### 344 public function getToolConsumers() 345 { 346 347 $consumers = array(); 348 349 $sql = 'SELECT consumer_pk, name, consumer_key256, consumer_key, secret, lti_version, ' . 350 'consumer_name, consumer_version, consumer_guid, ' . 351 'profile, tool_proxy, settings, protected, enabled, ' . 352 'enable_from, enable_until, last_access, created, updated ' . 353 "FROM {$this->dbTableNamePrefix}" . DataConnector::CONSUMER_TABLE_NAME . ' ' . 354 'ORDER BY name'; 355 $query = $this->db->prepare($sql); 356 $ok = ($query !== FALSE); 357 358 if ($ok) { 359 $ok = $query->execute(); 360 } 361 362 if ($ok) { 363 while ($row = $query->fetch(PDO::FETCH_ASSOC)) { 364 $row = array_change_key_case($row); 365 $key = empty($row['consumer_key']) ? $row['consumer_key256'] : $row['consumer_key']; 366 $consumer = new ToolProvider\ToolConsumer($key, $this); 367 $consumer->setRecordId(intval($row['consumer_pk'])); 368 $consumer->name = $row['name']; 369 $consumer->secret = $row['secret']; 370 $consumer->ltiVersion = $row['lti_version']; 371 $consumer->consumerName = $row['consumer_name']; 372 $consumer->consumerVersion = $row['consumer_version']; 373 $consumer->consumerGuid = $row['consumer_guid']; 374 $consumer->profile = json_decode($row['profile']); 375 $consumer->toolProxy = $row['tool_proxy']; 376 $settings = unserialize($row['settings']); 377 if (!is_array($settings)) { 378 $settings = array(); 379 } 380 $consumer->setSettings($settings); 381 $consumer->protected = (intval($row['protected']) === 1); 382 $consumer->enabled = (intval($row['enabled']) === 1); 383 $consumer->enableFrom = null; 384 if (!is_null($row['enable_from'])) { 385 $consumer->enableFrom = strtotime($row['enable_from']); 386 } 387 $consumer->enableUntil = null; 388 if (!is_null($row['enable_until'])) { 389 $consumer->enableUntil = strtotime($row['enable_until']); 390 } 391 $consumer->lastAccess = null; 392 if (!is_null($row['last_access'])) { 393 $consumer->lastAccess = strtotime($row['last_access']); 394 } 395 $consumer->created = strtotime($row['created']); 396 $consumer->updated = strtotime($row['updated']); 397 $consumers[] = $consumer; 398 } 399 } 400 401 return $consumers; 402 403 } 404 405 ### 406 ### ToolProxy methods 407 ### 408 409 ### 410 # Load the tool proxy from the database 411 ### 412 public function loadToolProxy($toolProxy) 413 { 414 415 return false; 416 417 } 418 419 ### 420 # Save the tool proxy to the database 421 ### 422 public function saveToolProxy($toolProxy) 423 { 424 425 return false; 426 427 } 428 429 ### 430 # Delete the tool proxy from the database 431 ### 432 public function deleteToolProxy($toolProxy) 433 { 434 435 return false; 436 437 } 438 439 ### 440 ### Context methods 441 ### 442 443 /** 444 * Load context object. 445 * 446 * @param Context $context Context object 447 * 448 * @return boolean True if the context object was successfully loaded 449 */ 450 public function loadContext($context) 451 { 452 453 $ok = false; 454 if (!empty($context->getRecordId())) { 455 $sql = 'SELECT context_pk, consumer_pk, lti_context_id, type, settings, created, updated ' . 456 "FROM {$this->dbTableNamePrefix}" . DataConnector::CONTEXT_TABLE_NAME . ' ' . 457 'WHERE (context_pk = :id)'; 458 $query = $this->db->prepare($sql); 459 $query->bindValue('id', $context->getRecordId(), PDO::PARAM_INT); 460 } else { 461 $sql = 'SELECT context_pk, consumer_pk, lti_context_id, type, settings, created, updated ' . 462 "FROM {$this->dbTableNamePrefix}" . DataConnector::CONTEXT_TABLE_NAME . ' ' . 463 'WHERE (consumer_pk = :cid) AND (lti_context_id = :ctx)'; 464 $query = $this->db->prepare($sql); 465 $query->bindValue('cid', $context->getConsumer()->getRecordId(), PDO::PARAM_INT); 466 $query->bindValue('ctx', $context->ltiContextId, PDO::PARAM_STR); 467 } 468 $ok = $query->execute(); 469 if ($ok) { 470 $row = $query->fetch(PDO::FETCH_ASSOC); 471 $ok = ($row !== FALSE); 472 } 473 if ($ok) { 474 $row = array_change_key_case($row); 475 $context->setRecordId(intval($row['context_pk'])); 476 $context->setConsumerId(intval($row['consumer_pk'])); 477 $context->ltiContextId = $row['lti_context_id']; 478 $context->type = $row['type']; 479 $settings = unserialize($row['settings']); 480 if (!is_array($settings)) { 481 $settings = array(); 482 } 483 $context->setSettings($settings); 484 $context->created = strtotime($row['created']); 485 $context->updated = strtotime($row['updated']); 486 } 487 488 return $ok; 489 490 } 491 492 /** 493 * Save context object. 494 * 495 * @param Context $context Context object 496 * 497 * @return boolean True if the context object was successfully saved 498 */ 499 public function saveContext($context) 500 { 501 502 $time = time(); 503 $now = date("{$this->dateFormat} {$this->timeFormat}", $time); 504 $settingsValue = serialize($context->getSettings()); 505 $id = $context->getRecordId(); 506 $consumer_pk = $context->getConsumer()->getRecordId(); 507 if (empty($id)) { 508 $sql = "INSERT INTO {$this->dbTableNamePrefix}" . DataConnector::CONTEXT_TABLE_NAME . ' (consumer_pk, lti_context_id, ' . 509 'type, settings, created, updated) ' . 510 'VALUES (:cid, :ctx, :type, :settings, :created, :updated)'; 511 $query = $this->db->prepare($sql); 512 $query->bindValue('cid', $consumer_pk, PDO::PARAM_INT); 513 $query->bindValue('ctx', $context->ltiContextId, PDO::PARAM_STR); 514 $query->bindValue('type', $context->type, PDO::PARAM_STR); 515 $query->bindValue('settings', $settingsValue, PDO::PARAM_STR); 516 $query->bindValue('created', $now, PDO::PARAM_STR); 517 $query->bindValue('updated', $now, PDO::PARAM_STR); 518 } else { 519 $sql = "UPDATE {$this->dbTableNamePrefix}" . DataConnector::CONTEXT_TABLE_NAME . ' SET ' . 520 'lti_context_id = :ctx, type = :type, settings = :settings, '. 521 'updated = :updated ' . 522 'WHERE (consumer_pk = :cid) AND (context_pk = :ctxid)'; 523 $query = $this->db->prepare($sql); 524 $query->bindValue('ctx', $context->ltiContextId, PDO::PARAM_STR); 525 $query->bindValue('type', $context->type, PDO::PARAM_STR); 526 $query->bindValue('settings', $settingsValue, PDO::PARAM_STR); 527 $query->bindValue('updated', $now, PDO::PARAM_STR); 528 $query->bindValue('cid', $consumer_pk, PDO::PARAM_INT); 529 $query->bindValue('ctxid', $id, PDO::PARAM_INT); 530 } 531 $ok = $query->execute(); 532 if ($ok) { 533 if (empty($id)) { 534 $context->setRecordId(intval($this->db->lastInsertId())); 535 $context->created = $time; 536 } 537 $context->updated = $time; 538 } 539 540 return $ok; 541 542 } 543 544 /** 545 * Delete context object. 546 * 547 * @param Context $context Context object 548 * 549 * @return boolean True if the Context object was successfully deleted 550 */ 551 public function deleteContext($context) 552 { 553 554 $id = $context->getRecordId(); 555 556 // Delete any outstanding share keys for resource links for this context 557 $sql = 'DELETE sk ' . 558 "FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_SHARE_KEY_TABLE_NAME . ' sk ' . 559 "INNER JOIN {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ON sk.resource_link_pk = rl.resource_link_pk ' . 560 'WHERE rl.context_pk = :id'; 561 $query = $this->db->prepare($sql); 562 $query->bindValue('id', $id, PDO::PARAM_INT); 563 $query->execute(); 564 565 // Delete any users in resource links for this context 566 $sql = 'DELETE u ' . 567 "FROM {$this->dbTableNamePrefix}" . DataConnector::USER_RESULT_TABLE_NAME . ' u ' . 568 "INNER JOIN {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ON u.resource_link_pk = rl.resource_link_pk ' . 569 'WHERE rl.context_pk = :id'; 570 $query = $this->db->prepare($sql); 571 $query->bindValue('id', $id, PDO::PARAM_INT); 572 $query->execute(); 573 574 // Update any resource links for which this consumer is acting as a primary resource link 575 $sql = "UPDATE {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' prl ' . 576 "INNER JOIN {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ON prl.primary_resource_link_pk = rl.resource_link_pk ' . 577 'SET prl.primary_resource_link_pk = null, prl.share_approved = null ' . 578 'WHERE rl.context_pk = :id'; 579 $query = $this->db->prepare($sql); 580 $query->bindValue('id', $id, PDO::PARAM_INT); 581 $query->execute(); 582 583 // Delete any resource links for this consumer 584 $sql = 'DELETE rl ' . 585 "FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ' . 586 'WHERE rl.context_pk = :id'; 587 $query = $this->db->prepare($sql); 588 $query->bindValue('id', $id, PDO::PARAM_INT); 589 $query->execute(); 590 591 // Delete context 592 $sql = 'DELETE c ' . 593 "FROM {$this->dbTableNamePrefix}" . DataConnector::CONTEXT_TABLE_NAME . ' c ' . 594 'WHERE c.context_pk = :id'; 595 $query = $this->db->prepare($sql); 596 $query->bindValue('id', $id, PDO::PARAM_INT); 597 $ok = $query->execute(); 598 599 if ($ok) { 600 $context->initialize(); 601 } 602 603 return $ok; 604 605 } 606 607 ### 608 ### ResourceLink methods 609 ### 610 611 /** 612 * Load resource link object. 613 * 614 * @param ResourceLink $resourceLink Resource_Link object 615 * 616 * @return boolean True if the resource link object was successfully loaded 617 */ 618 public function loadResourceLink($resourceLink) 619 { 620 621 if (!empty($resourceLink->getRecordId())) { 622 $sql = 'SELECT resource_link_pk, context_pk, consumer_pk, lti_resource_link_id, settings, primary_resource_link_pk, share_approved, created, updated ' . 623 "FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' ' . 624 'WHERE (resource_link_pk = :id)'; 625 $query = $this->db->prepare($sql); 626 $query->bindValue('id', $resourceLink->getRecordId(), PDO::PARAM_INT); 627 } else if (!empty($resourceLink->getContext())) { 628 $sql = 'SELECT resource_link_pk, context_pk, consumer_pk, lti_resource_link_id, settings, primary_resource_link_pk, share_approved, created, updated ' . 629 "FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' ' . 630 'WHERE (context_pk = :id) AND (lti_resource_link_id = :rlid)'; 631 $query = $this->db->prepare($sql); 632 $query->bindValue('id', $resourceLink->getContext()->getRecordId(), PDO::PARAM_INT); 633 $query->bindValue('rlid', $resourceLink->getId(), PDO::PARAM_STR); 634 } else { 635 $sql = 'SELECT r.resource_link_pk, r.context_pk, r.consumer_pk, r.lti_resource_link_id, r.settings, r.primary_resource_link_pk, r.share_approved, r.created, r.updated ' . 636 "FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' r LEFT OUTER JOIN ' . 637 $this->dbTableNamePrefix . DataConnector::CONTEXT_TABLE_NAME . ' c ON r.context_pk = c.context_pk ' . 638 ' WHERE ((r.consumer_pk = :id1) OR (c.consumer_pk = :id2)) AND (lti_resource_link_id = :rlid)'; 639 $query = $this->db->prepare($sql); 640 $query->bindValue('id1', $resourceLink->getConsumer()->getRecordId(), PDO::PARAM_INT); 641 $query->bindValue('id2', $resourceLink->getConsumer()->getRecordId(), PDO::PARAM_INT); 642 $query->bindValue('rlid', $resourceLink->getId(), PDO::PARAM_STR); 643 } 644 $ok = $query->execute(); 645 if ($ok) { 646 $row = $query->fetch(PDO::FETCH_ASSOC); 647 $ok = ($row !== FALSE); 648 } 649 650 if ($ok) { 651 $row = array_change_key_case($row); 652 $resourceLink->setRecordId(intval($row['resource_link_pk'])); 653 if (!is_null($row['context_pk'])) { 654 $resourceLink->setContextId(intval($row['context_pk'])); 655 } else { 656 $resourceLink->setContextId(null); 657 } 658 if (!is_null($row['consumer_pk'])) { 659 $resourceLink->setConsumerId(intval($row['consumer_pk'])); 660 } else { 661 $resourceLink->setConsumerId(null); 662 } 663 $resourceLink->ltiResourceLinkId = $row['lti_resource_link_id']; 664 $settings = unserialize($row['settings']); 665 if (!is_array($settings)) { 666 $settings = array(); 667 } 668 $resourceLink->setSettings($settings); 669 if (!is_null($row['primary_resource_link_pk'])) { 670 $resourceLink->primaryResourceLinkId = intval($row['primary_resource_link_pk']); 671 } else { 672 $resourceLink->primaryResourceLinkId = null; 673 } 674 $resourceLink->shareApproved = (is_null($row['share_approved'])) ? null : (intval($row['share_approved']) === 1); 675 $resourceLink->created = strtotime($row['created']); 676 $resourceLink->updated = strtotime($row['updated']); 677 } 678 679 return $ok; 680 681 } 682 683 /** 684 * Save resource link object. 685 * 686 * @param ResourceLink $resourceLink Resource_Link object 687 * 688 * @return boolean True if the resource link object was successfully saved 689 */ 690 public function saveResourceLink($resourceLink) { 691 692 $time = time(); 693 $now = date("{$this->dateFormat} {$this->timeFormat}", $time); 694 $settingsValue = serialize($resourceLink->getSettings()); 695 if (!empty($resourceLink->getContext())) { 696 $consumerId = null; 697 $contextId = strval($resourceLink->getContext()->getRecordId()); 698 } else if (!empty($resourceLink->getContextId())) { 699 $consumerId = null; 700 $contextId = strval($resourceLink->getContextId()); 701 } else { 702 $consumerId = strval($resourceLink->getConsumer()->getRecordId()); 703 $contextId = null; 704 } 705 if (empty($resourceLink->primaryResourceLinkId)) { 706 $primaryResourceLinkId = null; 707 } else { 708 $primaryResourceLinkId = $resourceLink->primaryResourceLinkId; 709 } 710 $id = $resourceLink->getRecordId(); 711 if (empty($id)) { 712 $sql = "INSERT INTO {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' (consumer_pk, context_pk, ' . 713 'lti_resource_link_id, settings, primary_resource_link_pk, share_approved, created, updated) ' . 714 'VALUES (:cid, :ctx, :rlid, :settings, :prlid, :share_approved, :created, :updated)'; 715 $query = $this->db->prepare($sql); 716 $query->bindValue('cid', $consumerId, PDO::PARAM_INT); 717 $query->bindValue('ctx', $contextId, PDO::PARAM_INT); 718 $query->bindValue('rlid', $resourceLink->getId(), PDO::PARAM_STR); 719 $query->bindValue('settings', $settingsValue, PDO::PARAM_STR); 720 $query->bindValue('prlid', $primaryResourceLinkId, PDO::PARAM_INT); 721 $query->bindValue('share_approved', $resourceLink->shareApproved, PDO::PARAM_INT); 722 $query->bindValue('created', $now, PDO::PARAM_STR); 723 $query->bindValue('updated', $now, PDO::PARAM_STR); 724 } else if (!is_null($contextId)) { 725 $sql = "UPDATE {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' SET ' . 726 'consumer_pk = NULL, context_pk = :ctx, lti_resource_link_id = :rlid, settings = :settings, '. 727 'primary_resource_link_pk = :prlid, share_approved = :share_approved, updated = :updated ' . 728 'WHERE (resource_link_pk = :id)'; 729 $query = $this->db->prepare($sql); 730 $query->bindValue('ctx', $contextId, PDO::PARAM_INT); 731 $query->bindValue('rlid', $resourceLink->getId(), PDO::PARAM_STR); 732 $query->bindValue('settings', $settingsValue, PDO::PARAM_STR); 733 $query->bindValue('prlid', $primaryResourceLinkId, PDO::PARAM_INT); 734 $query->bindValue('share_approved', $resourceLink->shareApproved, PDO::PARAM_INT); 735 $query->bindValue('updated', $now, PDO::PARAM_STR); 736 $query->bindValue('id', $id, PDO::PARAM_INT); 737 } else { 738 $sql = "UPDATE {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' SET ' . 739 'context_pk = :ctx, lti_resource_link_id = :rlid, settings = :settings, '. 740 'primary_resource_link_pk = :prlid, share_approved = :share_approved, updated = :updated ' . 741 'WHERE (consumer_pk = :cid) AND (resource_link_pk = :id)'; 742 $query = $this->db->prepare($sql); 743 $query->bindValue('ctx', $contextId, PDO::PARAM_INT); 744 $query->bindValue('rlid', $resourceLink->getId(), PDO::PARAM_STR); 745 $query->bindValue('settings', $settingsValue, PDO::PARAM_STR); 746 $query->bindValue('prlid', $primaryResourceLinkId, PDO::PARAM_INT); 747 $query->bindValue('share_approved', $resourceLink->shareApproved, PDO::PARAM_INT); 748 $query->bindValue('updated', $now, PDO::PARAM_STR); 749 $query->bindValue('cid', $consumerId, PDO::PARAM_INT); 750 $query->bindValue('id', $id, PDO::PARAM_INT); 751 } 752 $ok = $query->execute(); 753 if ($ok) { 754 if (empty($id)) { 755 $resourceLink->setRecordId(intval($this->db->lastInsertId())); 756 $resourceLink->created = $time; 757 } 758 $resourceLink->updated = $time; 759 } 760 761 return $ok; 762 763 } 764 765 /** 766 * Delete resource link object. 767 * 768 * @param ResourceLink $resourceLink Resource_Link object 769 * 770 * @return boolean True if the resource link object was successfully deleted 771 */ 772 public function deleteResourceLink($resourceLink) 773 { 774 775 $id = $resourceLink->getRecordId(); 776 777 // Delete any outstanding share keys for resource links for this consumer 778 $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_SHARE_KEY_TABLE_NAME . ' ' . 779 'WHERE (resource_link_pk = :id)'; 780 $query = $this->db->prepare($sql); 781 $query->bindValue('id', $id, PDO::PARAM_INT); 782 $ok = $query->execute(); 783 784 // Delete users 785 if ($ok) { 786 $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::USER_RESULT_TABLE_NAME . ' ' . 787 'WHERE (resource_link_pk = :id)'; 788 $query = $this->db->prepare($sql); 789 $query->bindValue('id', $id, PDO::PARAM_INT); 790 $ok = $query->execute(); 791 } 792 793 // Update any resource links for which this is the primary resource link 794 if ($ok) { 795 $sql = "UPDATE {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' ' . 796 'SET primary_resource_link_pk = NULL ' . 797 'WHERE (primary_resource_link_pk = :id)'; 798 $query = $this->db->prepare($sql); 799 $query->bindValue('id', $id, PDO::PARAM_INT); 800 $ok = $query->execute(); 801 } 802 803 // Delete resource link 804 if ($ok) { 805 $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' ' . 806 'WHERE (resource_link_pk = :id)'; 807 $query = $this->db->prepare($sql); 808 $query->bindValue('id', $id, PDO::PARAM_INT); 809 $ok = $query->execute(); 810 } 811 812 if ($ok) { 813 $resourceLink->initialize(); 814 } 815 816 return $ok; 817 818 } 819 820 /** 821 * Get array of user objects. 822 * 823 * Obtain an array of User objects for users with a result sourcedId. The array may include users from other 824 * resource links which are sharing this resource link. It may also be optionally indexed by the user ID of a specified scope. 825 * 826 * @param ResourceLink $resourceLink Resource link object 827 * @param boolean $localOnly True if only users within the resource link are to be returned (excluding users sharing this resource link) 828 * @param int $idScope Scope value to use for user IDs 829 * 830 * @return array Array of User objects 831 */ 832 public function getUserResultSourcedIDsResourceLink($resourceLink, $localOnly, $idScope) 833 { 834 835 $id = $resourceLink->getRecordId(); 836 $users = array(); 837 838 if ($localOnly) { 839 $sql = 'SELECT u.user_pk, u.lti_result_sourcedid, u.lti_user_id, u.created, u.updated ' . 840 "FROM {$this->dbTableNamePrefix}" . DataConnector::USER_RESULT_TABLE_NAME . ' AS u ' . 841 "INNER JOIN {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' AS rl ' . 842 'ON u.resource_link_pk = rl.resource_link_pk ' . 843 'WHERE (rl.resource_link_pk = :id) AND (rl.primary_resource_link_pk IS NULL)'; 844 $query = $this->db->prepare($sql); 845 $query->bindValue('id', $id, PDO::PARAM_INT); 846 } else { 847 $sql = 'SELECT u.user_pk, u.lti_result_sourcedid, u.lti_user_id, u.created, u.updated ' . 848 "FROM {$this->dbTableNamePrefix}" . DataConnector::USER_RESULT_TABLE_NAME . ' AS u ' . 849 "INNER JOIN {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' AS rl ' . 850 'ON u.resource_link_pk = rl.resource_link_pk ' . 851 'WHERE ((rl.resource_link_pk = :id) AND (rl.primary_resource_link_pk IS NULL)) OR ' . 852 '((rl.primary_resource_link_pk = :pid) AND (share_approved = 1))'; 853 $query = $this->db->prepare($sql); 854 $query->bindValue('id', $id, PDO::PARAM_INT); 855 $query->bindValue('pid', $id, PDO::PARAM_INT); 856 } 857 if ($query->execute()) { 858 while ($row = $query->fetch(PDO::FETCH_ASSOC)) { 859 $row = array_change_key_case($row); 860 $user = ToolProvider\User::fromRecordId($row['user_pk'], $resourceLink->getDataConnector()); 861 if (is_null($idScope)) { 862 $users[] = $user; 863 } else { 864 $users[$user->getId($idScope)] = $user; 865 } 866 } 867 } 868 869 return $users; 870 871 } 872 873 /** 874 * Get array of shares defined for this resource link. 875 * 876 * @param ResourceLink $resourceLink Resource_Link object 877 * 878 * @return array Array of ResourceLinkShare objects 879 */ 880 public function getSharesResourceLink($resourceLink) 881 { 882 883 $id = $resourceLink->getRecordId(); 884 885 $shares = array(); 886 887 $sql = 'SELECT consumer_pk, resource_link_pk, share_approved ' . 888 "FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' ' . 889 'WHERE (primary_resource_link_pk = :id) ' . 890 'ORDER BY consumer_pk'; 891 $query = $this->db->prepare($sql); 892 $query->bindValue('id', $id, PDO::PARAM_INT); 893 if ($query->execute()) { 894 while ($row = $query->fetch(PDO::FETCH_ASSOC)) { 895 $row = array_change_key_case($row); 896 $share = new ToolProvider\ResourceLinkShare(); 897 $share->resourceLinkId = intval($row['resource_link_pk']); 898 $share->approved = (intval($row['share_approved']) === 1); 899 $shares[] = $share; 900 } 901 } 902 903 return $shares; 904 905 } 906 907 908 ### 909 ### ConsumerNonce methods 910 ### 911 912 /** 913 * Load nonce object. 914 * 915 * @param ConsumerNonce $nonce Nonce object 916 * 917 * @return boolean True if the nonce object was successfully loaded 918 */ 919 public function loadConsumerNonce($nonce) 920 { 921 922 $ok = true; 923 924 // Delete any expired nonce values 925 $now = date("{$this->dateFormat} {$this->timeFormat}", time()); 926 $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::NONCE_TABLE_NAME . ' WHERE expires <= :now'; 927 $query = $this->db->prepare($sql); 928 $query->bindValue('now', $now, PDO::PARAM_STR); 929 $query->execute(); 930 931 // Load the nonce 932 $id = $nonce->getConsumer()->getRecordId(); 933 $value = $nonce->getValue(); 934 $sql = "SELECT value T FROM {$this->dbTableNamePrefix}" . DataConnector::NONCE_TABLE_NAME . ' WHERE (consumer_pk = :id) AND (value = :value)'; 935 $query = $this->db->prepare($sql); 936 $query->bindValue('id', $id, PDO::PARAM_INT); 937 $query->bindValue('value', $value, PDO::PARAM_STR); 938 $ok = $query->execute(); 939 if ($ok) { 940 $row = $query->fetch(PDO::FETCH_ASSOC); 941 if ($row === false) { 942 $ok = false; 943 } 944 } 945 946 return $ok; 947 948 } 949 950 /** 951 * Save nonce object. 952 * 953 * @param ConsumerNonce $nonce Nonce object 954 * 955 * @return boolean True if the nonce object was successfully saved 956 */ 957 public function saveConsumerNonce($nonce) 958 { 959 960 $id = $nonce->getConsumer()->getRecordId(); 961 $value = $nonce->getValue(); 962 $expires = date("{$this->dateFormat} {$this->timeFormat}", $nonce->expires); 963 $sql = "INSERT INTO {$this->dbTableNamePrefix}" . DataConnector::NONCE_TABLE_NAME . ' (consumer_pk, value, expires) VALUES (:id, :value, :expires)'; 964 $query = $this->db->prepare($sql); 965 $query->bindValue('id', $id, PDO::PARAM_INT); 966 $query->bindValue('value', $value, PDO::PARAM_STR); 967 $query->bindValue('expires', $expires, PDO::PARAM_STR); 968 $ok = $query->execute(); 969 970 return $ok; 971 972 } 973 974 975 ### 976 ### ResourceLinkShareKey methods 977 ### 978 979 /** 980 * Load resource link share key object. 981 * 982 * @param ResourceLinkShareKey $shareKey Resource_Link share key object 983 * 984 * @return boolean True if the resource link share key object was successfully loaded 985 */ 986 public function loadResourceLinkShareKey($shareKey) 987 { 988 989 $ok = false; 990 991 // Clear expired share keys 992 $now = date("{$this->dateFormat} {$this->timeFormat}", time()); 993 $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_SHARE_KEY_TABLE_NAME . ' WHERE expires <= :now'; 994 $query = $this->db->prepare($sql); 995 $query->bindValue('now', $now, PDO::PARAM_STR); 996 $query->execute(); 997 998 // Load share key 999 $id = $shareKey->getId(); 1000 $sql = 'SELECT resource_link_pk, auto_approve, expires ' . 1001 "FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_SHARE_KEY_TABLE_NAME . ' ' . 1002 'WHERE share_key_id = :id'; 1003 $query = $this->db->prepare($sql); 1004 $query->bindValue('id', $id, PDO::PARAM_STR); 1005 if ($query->execute()) { 1006 $row = $query->fetch(PDO::FETCH_ASSOC); 1007 if ($row !== FALSE) { 1008 $row = array_change_key_case($row); 1009 if (intval($row['resource_link_pk']) === $shareKey->resourceLinkId) { 1010 $shareKey->autoApprove = ($row['auto_approve'] === 1); 1011 $shareKey->expires = strtotime($row['expires']); 1012 $ok = true; 1013 } 1014 } 1015 } 1016 1017 return $ok; 1018 1019 } 1020 1021 /** 1022 * Save resource link share key object. 1023 * 1024 * @param ResourceLinkShareKey $shareKey Resource link share key object 1025 * 1026 * @return boolean True if the resource link share key object was successfully saved 1027 */ 1028 public function saveResourceLinkShareKey($shareKey) 1029 { 1030 1031 $id = $shareKey->getId(); 1032 $expires = date("{$this->dateFormat} {$this->timeFormat}", $shareKey->expires); 1033 $sql = "INSERT INTO {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_SHARE_KEY_TABLE_NAME . ' ' . 1034 '(share_key_id, resource_link_pk, auto_approve, expires) ' . 1035 'VALUES (:id, :prlid, :approve, :expires)'; 1036 $query = $this->db->prepare($sql); 1037 $query->bindValue('id', $id, PDO::PARAM_STR); 1038 $query->bindValue('prlid', $shareKey->resourceLinkId, PDO::PARAM_INT); 1039 $query->bindValue('approve', $shareKey->autoApprove, PDO::PARAM_INT); 1040 $query->bindValue('expires', $expires, PDO::PARAM_STR); 1041 $ok = $query->execute(); 1042 1043 return $ok; 1044 1045 } 1046 1047 /** 1048 * Delete resource link share key object. 1049 * 1050 * @param ResourceLinkShareKey $shareKey Resource link share key object 1051 * 1052 * @return boolean True if the resource link share key object was successfully deleted 1053 */ 1054 public function deleteResourceLinkShareKey($shareKey) 1055 { 1056 1057 $id = $shareKey->getId(); 1058 $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_SHARE_KEY_TABLE_NAME . ' WHERE share_key_id = :id'; 1059 $query = $this->db->prepare($sql); 1060 $query->bindValue('id', $id, PDO::PARAM_STR); 1061 $ok = $query->execute(); 1062 1063 if ($ok) { 1064 $shareKey->initialize(); 1065 } 1066 1067 return $ok; 1068 1069 } 1070 1071 1072 ### 1073 ### User methods 1074 ### 1075 1076 /** 1077 * Load user object. 1078 * 1079 * @param User $user User object 1080 * 1081 * @return boolean True if the user object was successfully loaded 1082 */ 1083 public function loadUser($user) 1084 { 1085 1086 $ok = false; 1087 if (!empty($user->getRecordId())) { 1088 $id = $user->getRecordId(); 1089 $sql = 'SELECT user_pk, resource_link_pk, lti_user_id, lti_result_sourcedid, created, updated ' . 1090 "FROM {$this->dbTableNamePrefix}" . DataConnector::USER_RESULT_TABLE_NAME . ' ' . 1091 'WHERE (user_pk = :id)'; 1092 $query = $this->db->prepare($sql); 1093 $query->bindValue('id', $id, PDO::PARAM_INT); 1094 } else { 1095 $id = $user->getResourceLink()->getRecordId(); 1096 $uid = $user->getId(ToolProvider\ToolProvider::ID_SCOPE_ID_ONLY); 1097 $sql = 'SELECT user_pk, resource_link_pk, lti_user_id, lti_result_sourcedid, created, updated ' . 1098 "FROM {$this->dbTableNamePrefix}" . DataConnector::USER_RESULT_TABLE_NAME . ' ' . 1099 'WHERE (resource_link_pk = :id) AND (lti_user_id = :uid)'; 1100 $query = $this->db->prepare($sql); 1101 $query->bindValue('id', $id, PDO::PARAM_INT); 1102 $query->bindValue('uid', $uid, PDO::PARAM_STR); 1103 } 1104 if ($query->execute()) { 1105 $row = $query->fetch(PDO::FETCH_ASSOC); 1106 if ($row !== false) { 1107 $row = array_change_key_case($row); 1108 $user->setRecordId(intval($row['user_pk'])); 1109 $user->setResourceLinkId(intval($row['resource_link_pk'])); 1110 $user->ltiUserId = $row['lti_user_id']; 1111 $user->ltiResultSourcedId = $row['lti_result_sourcedid']; 1112 $user->created = strtotime($row['created']); 1113 $user->updated = strtotime($row['updated']); 1114 $ok = true; 1115 } 1116 } 1117 1118 return $ok; 1119 1120 } 1121 1122 /** 1123 * Save user object. 1124 * 1125 * @param User $user User object 1126 * 1127 * @return boolean True if the user object was successfully saved 1128 */ 1129 public function saveUser($user) 1130 { 1131 1132 $time = time(); 1133 $now = date("{$this->dateFormat} {$this->timeFormat}", $time); 1134 if (is_null($user->created)) { 1135 $sql = "INSERT INTO {$this->dbTableNamePrefix}" . DataConnector::USER_RESULT_TABLE_NAME . ' (resource_link_pk, ' . 1136 'lti_user_id, lti_result_sourcedid, created, updated) ' . 1137 'VALUES (:rlid, :uid, :sourcedid, :created, :updated)'; 1138 $query = $this->db->prepare($sql); 1139 $query->bindValue('rlid', $user->getResourceLink()->getRecordId(), PDO::PARAM_INT); 1140 $query->bindValue('uid', $user->getId(ToolProvider\ToolProvider::ID_SCOPE_ID_ONLY), PDO::PARAM_STR); 1141 $query->bindValue('sourcedid', $user->ltiResultSourcedId, PDO::PARAM_STR); 1142 $query->bindValue('created', $now, PDO::PARAM_STR); 1143 $query->bindValue('updated', $now, PDO::PARAM_STR); 1144 } else { 1145 $sql = "UPDATE {$this->dbTableNamePrefix}" . DataConnector::USER_RESULT_TABLE_NAME . ' ' . 1146 'SET lti_result_sourcedid = :sourcedid, updated = :updated ' . 1147 'WHERE (user_pk = :id)'; 1148 $query = $this->db->prepare($sql); 1149 $query->bindValue('sourcedid', $user->ltiResultSourcedId, PDO::PARAM_STR); 1150 $query->bindValue('updated', $now, PDO::PARAM_STR); 1151 $query->bindValue('id', $user->getRecordId(), PDO::PARAM_INT); 1152 } 1153 $ok = $query->execute(); 1154 if ($ok) { 1155 if (is_null($user->created)) { 1156 $user->setRecordId(intval($this->db->lastInsertId())); 1157 $user->created = $time; 1158 } 1159 $user->updated = $time; 1160 } 1161 1162 return $ok; 1163 1164 } 1165 1166 /** 1167 * Delete user object. 1168 * 1169 * @param User $user User object 1170 * 1171 * @return boolean True if the user object was successfully deleted 1172 */ 1173 public function deleteUser($user) 1174 { 1175 1176 $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::USER_RESULT_TABLE_NAME . ' ' . 1177 'WHERE (user_pk = :id)'; 1178 $query = $this->db->prepare($sql); 1179 $query->bindValue('id', $user->getRecordId(), PDO::PARAM_INT); 1180 $ok = $query->execute(); 1181 1182 if ($ok) { 1183 $user->initialize(); 1184 } 1185 1186 return $ok; 1187 1188 } 1189 1190 }
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