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<?php |
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namespace Db3v4l\Command; |
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use Db3v4l\Core\DatabaseSchemaManager; |
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abstract class DatabaseManagingCommand extends SQLExecutingCommand |
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{ |
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/** |
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* @param string[][] $instanceList |
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* @param array[] $dbSpecList key: db name (as used to identify configured databases), value: array('user': mandatory, 'dbname': mandatory, 'password': mandatory) |
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* @return array 'succeeded': int, 'failed': int, 'results': same format as dbConfigurationManager::getInstanceConfiguration |
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* @throws \Exception |
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* |
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* @todo make it easier to report back to the caller the errors that prevented creation of any DB |
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*/ |
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protected function createDatabases($instanceList, $dbSpecList) |
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{ |
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// Sadly, psql does not allow to create a db and a user using a multiple-sql-commands string, |
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// and we have to resort to using temp files |
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/// @todo can we make this safer? Ideally the new user name and pwd should neither hit disk nor the process list... |
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$results = $this->executeSqlAction( |
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$instanceList, |
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'Creating new database & user', |
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function ($schemaManager, $instanceName) use ($dbSpecList) { |
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$dbConnectionSpec = $dbSpecList[$instanceName]; |
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/** @var DatabaseSchemaManager $schemaManager */ |
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return $schemaManager->getCreateDatabaseSqlAction( |
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$dbConnectionSpec['dbname'], |
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isset($dbConnectionSpec['user']) ? $dbConnectionSpec['user'] : null, |
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isset($dbConnectionSpec['password']) ? $dbConnectionSpec['password'] : null, |
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(isset($dbConnectionSpec['charset']) && $dbConnectionSpec['charset'] != '') ? $dbConnectionSpec['charset'] : null |
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); |
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} |
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); |
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/// @todo the new connection spec should be generated by the schemaManager for each instance. This would allow |
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/// f.e. connection specs for Oracle to be different when using PDBs vs when using schemas |
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/// (this could be achieved by copying the 'dbname' member over the 'servicename' one, or unsetting 'servicename'...) |
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$finalData = []; |
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foreach($results['data'] as $instanceName => $data) { |
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// check for failure in creation of temp db |
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// @todo how can we tell apart correctly errors that actually prevented the db from being created from other errors? |
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if (is_array($data) && isset($data['exitcode']) && $data['exitcode'] != 0) { |
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continue; |
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} |
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$dbConnectionSpec = $dbSpecList[$instanceName]; |
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$finalData[$instanceName] = $instanceList[$instanceName]; |
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$finalData[$instanceName]['dbname'] = $dbConnectionSpec['dbname']; |
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if (isset($dbConnectionSpec['user'])) { |
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$finalData[$instanceName]['user'] = $dbConnectionSpec['user']; |
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} |
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if (isset($dbConnectionSpec['password'])) { |
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$finalData[$instanceName]['password'] = $dbConnectionSpec['password']; |
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} |
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if (isset($dbConnectionSpec['charset'])) { |
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$finalData[$instanceName]['charset'] = $dbConnectionSpec['charset']; |
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} |
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} |
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$results['data'] = $finalData; |
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return $results; |
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} |
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/** |
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* @param string[][] $instanceList |
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* @param array[] $dbSpecList key: db name (as used to identify configured databases), value: array('user': mandatory, 'dbname': mandatory, if unspecified assumed same as user) |
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* @param bool $ifExists |
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* @param string $executionStrategy |
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* @return array 'succeeded': int, 'failed': int, 'results': string[] |
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* @throws \Exception |
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*/ |
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protected function dropDatabases($instanceList, $dbSpecList, $ifExists = false) |
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{ |
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return $this->executeSqlAction( |
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$instanceList, |
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'Dropping of database & user', |
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function ($schemaManager, $instanceName) use ($dbSpecList, $ifExists) { |
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$dbConnectionSpec = $dbSpecList[$instanceName]; |
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/** @var DatabaseSchemaManager $schemaManager */ |
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return $schemaManager->getDropDatabaseSqlAction( |
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$dbConnectionSpec['dbname'], |
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isset($dbConnectionSpec['user']) ? $dbConnectionSpec['user'] : null, |
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$ifExists |
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); |
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} |
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); |
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} |
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} |
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gggeek /
db-3v4l
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