Current Path : C:/xampp/htdocs/moodle/lib/ltiprovider/src/ToolProvider/DataConnector/ |
Current File : C:/xampp/htdocs/moodle/lib/ltiprovider/src/ToolProvider/DataConnector/DataConnector_pdo_sqlite.php |
<?php namespace IMSGlobal\LTI\ToolProvider\DataConnector; use IMSGlobal\LTI\ToolProvider; use IMSGlobal\LTI\ToolProvider\Context; use IMSGlobal\LTI\ToolProvider\ToolConsumer; use PDO; /** * Class to represent an LTI Data Connector for PDO variations for SQLite connections * * @author Stephen P Vickers <svickers@imsglobal.org> * @copyright IMS Global Learning Consortium Inc * @date 2016 * @version 3.0.0 * @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0 */ class DataConnector_pdo_sqlite extends DataConnector_pdo { ### ### ToolConsumer methods ### /** * Delete tool consumer object. * * @param ToolConsumer $consumer Consumer object * * @return boolean True if the tool consumer object was successfully deleted */ public function deleteToolConsumer($consumer) { $id = $consumer->getRecordId(); // Delete any nonce values for this consumer $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::NONCE_TABLE_NAME . ' WHERE consumer_pk = :id'; $query = $this->db->prepare($sql); $query->bindValue('id', $id, PDO::PARAM_INT); $query->execute(); // Delete any outstanding share keys for resource links for this consumer $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_SHARE_KEY_TABLE_NAME . ' ' . "WHERE EXISTS (SELECT * FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ' . "WHERE ({$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_SHARE_KEY_TABLE_NAME . '.resource_link_pk = rl.resource_link_pk) AND (rl.consumer_pk = :id))'; $query = $this->db->prepare($sql); $query->bindValue('id', $id, PDO::PARAM_INT); $query->execute(); // Delete any outstanding share keys for resource links for contexts in this consumer $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_SHARE_KEY_TABLE_NAME . ' ' . "WHERE EXISTS (SELECT * FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ' . "INNER JOIN {$this->dbTableNamePrefix}" . DataConnector::CONTEXT_TABLE_NAME . ' c ON rl.context_pk = c.context_pk ' . "WHERE ({$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_SHARE_KEY_TABLE_NAME . '.resource_link_pk = rl.resource_link_pk) AND (c.consumer_pk = :id))'; $query = $this->db->prepare($sql); $query->bindValue('id', $id, PDO::PARAM_INT); $query->execute(); // Delete any users in resource links for this consumer $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::USER_RESULT_TABLE_NAME . ' ' . "WHERE EXISTS (SELECT * FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ' . "WHERE ({$this->dbTableNamePrefix}" . DataConnector::USER_RESULT_TABLE_NAME . '.resource_link_pk = rl.resource_link_pk) AND (rl.consumer_pk = :id))'; $query = $this->db->prepare($sql); $query->bindValue('id', $id, PDO::PARAM_INT); $query->execute(); // Delete any users in resource links for contexts in this consumer $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::USER_RESULT_TABLE_NAME . ' ' . "WHERE EXISTS (SELECT * FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ' . "INNER JOIN {$this->dbTableNamePrefix}" . DataConnector::CONTEXT_TABLE_NAME . ' c ON rl.context_pk = c.context_pk ' . "WHERE ({$this->dbTableNamePrefix}" . DataConnector::USER_RESULT_TABLE_NAME . '.resource_link_pk = rl.resource_link_pk) AND (c.consumer_pk = :id))'; $query = $this->db->prepare($sql); $query->bindValue('id', $id, PDO::PARAM_INT); $query->execute(); // Update any resource links for which this consumer is acting as a primary resource link $sql = "UPDATE {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' ' . 'SET primary_resource_link_pk = NULL, share_approved = NULL ' . "WHERE EXISTS (SELECT * FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ' . "WHERE ({$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . '.primary_resource_link_pk = rl.resource_link_pk) AND (rl.consumer_pk = :id))'; $query = $this->db->prepare($sql); $query->bindValue('id', $id, PDO::PARAM_INT); $query->execute(); // Update any resource links for contexts in which this consumer is acting as a primary resource link $sql = "UPDATE {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' ' . 'SET primary_resource_link_pk = NULL, share_approved = NULL ' . "WHERE EXISTS (SELECT * FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ' . "INNER JOIN {$this->dbTableNamePrefix}" . DataConnector::CONTEXT_TABLE_NAME . ' c ON rl.context_pk = c.context_pk ' . "WHERE ({$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . '.primary_resource_link_pk = rl.resource_link_pk) AND (c.consumer_pk = :id))'; $query = $this->db->prepare($sql); $query->bindValue('id', $id, PDO::PARAM_INT); $query->execute(); // Delete any resource links for this consumer $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' ' . 'WHERE consumer_pk = :id'; $query = $this->db->prepare($sql); $query->bindValue('id', $id, PDO::PARAM_INT); $query->execute(); // Delete any resource links for contexts in this consumer $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' ' . "WHERE EXISTS (SELECT * FROM {$this->dbTableNamePrefix}" . DataConnector::CONTEXT_TABLE_NAME . ' c ' . "WHERE ({$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . '.context_pk = c.context_pk) AND (c.consumer_pk = :id))'; $query = $this->db->prepare($sql); $query->bindValue('id', $id, PDO::PARAM_INT); $query->execute(); // Delete any contexts for this consumer $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::CONTEXT_TABLE_NAME . ' ' . 'WHERE consumer_pk = :id'; $query = $this->db->prepare($sql); $query->bindValue('id', $id, PDO::PARAM_INT); $query->execute(); // Delete consumer $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::CONSUMER_TABLE_NAME . ' ' . 'WHERE consumer_pk = :id'; $query = $this->db->prepare($sql); $query->bindValue('id', $id, PDO::PARAM_INT); $ok = $query->execute(); if ($ok) { $consumer->initialize(); } return $ok; } ### ### Context methods ### /** * Delete context object. * * @param Context $context Context object * * @return boolean True if the Context object was successfully deleted */ public function deleteContext($context) { $id = $context->getRecordId(); // Delete any outstanding share keys for resource links for this context $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_SHARE_KEY_TABLE_NAME . ' ' . "WHERE EXISTS (SELECT * FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ' . "WHERE ({$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_SHARE_KEY_TABLE_NAME . '.resource_link_pk = rl.resource_link_pk) AND (rl.context_pk = :id))'; $query = $this->db->prepare($sql); $query->bindValue('id', $id, PDO::PARAM_INT); $query->execute(); // Delete any users in resource links for this context $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::USER_RESULT_TABLE_NAME . ' ' . "WHERE EXISTS (SELECT * FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ' . "WHERE ({$this->dbTableNamePrefix}" . DataConnector::USER_RESULT_TABLE_NAME . '.resource_link_pk = rl.resource_link_pk) AND (rl.context_pk = :id))'; $query = $this->db->prepare($sql); $query->bindValue('id', $id, PDO::PARAM_INT); $query->execute(); // Update any resource links for which this consumer is acting as a primary resource link $sql = "UPDATE {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' ' . 'SET primary_resource_link_pk = null, share_approved = null ' . "WHERE EXISTS (SELECT * FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' rl ' . "WHERE ({$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . '.primary_resource_link_pk = rl.resource_link_pk) AND (rl.context_pk = :id))'; $query = $this->db->prepare($sql); $query->bindValue('id', $id, PDO::PARAM_INT); $query->execute(); // Delete any resource links for this consumer $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::RESOURCE_LINK_TABLE_NAME . ' ' . 'WHERE context_pk = :id'; $query = $this->db->prepare($sql); $query->bindValue('id', $id, PDO::PARAM_INT); $query->execute(); // Delete context $sql = "DELETE FROM {$this->dbTableNamePrefix}" . DataConnector::CONTEXT_TABLE_NAME . ' ' . 'WHERE context_pk = :id'; $query = $this->db->prepare($sql); $query->bindValue('id', $id, PDO::PARAM_INT); $ok = $query->execute(); if ($ok) { $context->initialize(); } return $ok; } }