Source of file OraclePlatform.php
Size: 22,794 Bytes - Last Modified: 2013-05-11T09:45:37+02:00
/home/theseer/Downloads/Symfony/vendor/doctrine/dbal/lib/Doctrine/DBAL/Platforms/OraclePlatform.php
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IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * This software consists of voluntary contributions made by many individuals * and is licensed under the MIT license. For more information, see * <http://www.doctrine-project.org>. */ namespace Doctrine\DBAL\Platforms; use Doctrine\DBAL\Schema\ForeignKeyConstraint; use Doctrine\DBAL\Schema\Index; use Doctrine\DBAL\Schema\Sequence; use Doctrine\DBAL\Schema\Table; use Doctrine\DBAL\Schema\TableDiff; use Doctrine\DBAL\DBALException; /** * OraclePlatform. * * @since 2.0 * @author Roman Borschel <roman@code-factory.org> * @author Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library) * @author Benjamin Eberlei <kontakt@beberlei.de> */ class OraclePlatform extends AbstractPlatform { /** * Assertion for Oracle identifiers * * @link http://docs.oracle.com/cd/B19306_01/server.102/b14200/sql_elements008.htm * * @param string * * @throws DBALException */ static public function assertValidIdentifier($identifier) { if ( ! preg_match('(^(([a-zA-Z]{1}[a-zA-Z0-9_$#]{0,})|("[^"]+"))$)', $identifier)) { throw new DBALException("Invalid Oracle identifier"); } } /** * {@inheritDoc} */ public function getSubstringExpression($value, $position, $length = null) { if ($length !== null) { return "SUBSTR($value, $position, $length)"; } return "SUBSTR($value, $position)"; } /** * {@inheritDoc} */ public function getNowExpression($type = 'timestamp') { switch ($type) { case 'date': case 'time': case 'timestamp': default: return 'TO_CHAR(CURRENT_TIMESTAMP, \'YYYY-MM-DD HH24:MI:SS\')'; } } /** * {@inheritDoc} */ public function getLocateExpression($str, $substr, $startPos = false) { if ($startPos == false) { return 'INSTR('.$str.', '.$substr.')'; } return 'INSTR('.$str.', '.$substr.', '.$startPos.')'; } /** * {@inheritDoc} */ public function getGuidExpression() { return 'SYS_GUID()'; } /** * {@inheritDoc} * * Note: Since Oracle timestamp differences are calculated down to the microsecond we have to truncate * them to the difference in days. This is obviously a restriction of the original functionality, but we * need to make this a portable function. */ public function getDateDiffExpression($date1, $date2) { return "TRUNC(TO_NUMBER(SUBSTR((" . $date1 . "-" . $date2 . "), 1, INSTR(" . $date1 . "-" . $date2 .", ' '))))"; } /** * {@inheritDoc} */ public function getDateAddDaysExpression($date, $days) { return '(' . $date . '+' . $days . ')'; } /** * {@inheritDoc} */ public function getDateSubDaysExpression($date, $days) { return '(' . $date . '-' . $days . ')'; } /** * {@inheritDoc} */ public function getDateAddMonthExpression($date, $months) { return "ADD_MONTHS(" . $date . ", " . $months . ")"; } /** * {@inheritDoc} */ public function getDateSubMonthExpression($date, $months) { return "ADD_MONTHS(" . $date . ", -" . $months . ")"; } /** * {@inheritDoc} */ public function getBitAndComparisonExpression($value1, $value2) { return 'BITAND('.$value1 . ', ' . $value2 . ')'; } /** * {@inheritDoc} */ public function getBitOrComparisonExpression($value1, $value2) { return '(' . $value1 . '-' . $this->getBitAndComparisonExpression($value1, $value2) . '+' . $value2 . ')'; } /** * {@inheritDoc} * * Need to specifiy minvalue, since start with is hidden in the system and MINVALUE <= START WITH. * Therefore we can use MINVALUE to be able to get a hint what START WITH was for later introspection * in {@see listSequences()} */ public function getCreateSequenceSQL(Sequence $sequence) { return 'CREATE SEQUENCE ' . $sequence->getQuotedName($this) . ' START WITH ' . $sequence->getInitialValue() . ' MINVALUE ' . $sequence->getInitialValue() . ' INCREMENT BY ' . $sequence->getAllocationSize(); } /** * {@inheritDoc} */ public function getAlterSequenceSQL(\Doctrine\DBAL\Schema\Sequence $sequence) { return 'ALTER SEQUENCE ' . $sequence->getQuotedName($this) . ' INCREMENT BY ' . $sequence->getAllocationSize(); } /** * {@inheritDoc} */ public function getSequenceNextValSQL($sequenceName) { return 'SELECT ' . $sequenceName . '.nextval FROM DUAL'; } /** * {@inheritDoc} */ public function getSetTransactionIsolationSQL($level) { return 'SET TRANSACTION ISOLATION LEVEL ' . $this->_getTransactionIsolationLevelSQL($level); } /** * {@inheritDoc} */ protected function _getTransactionIsolationLevelSQL($level) { switch ($level) { case \Doctrine\DBAL\Connection::TRANSACTION_READ_UNCOMMITTED: return 'READ UNCOMMITTED'; case \Doctrine\DBAL\Connection::TRANSACTION_READ_COMMITTED: return 'READ COMMITTED'; case \Doctrine\DBAL\Connection::TRANSACTION_REPEATABLE_READ: case \Doctrine\DBAL\Connection::TRANSACTION_SERIALIZABLE: return 'SERIALIZABLE'; default: return parent::_getTransactionIsolationLevelSQL($level); } } /** * {@inheritDoc} */ public function getBooleanTypeDeclarationSQL(array $field) { return 'NUMBER(1)'; } /** * {@inheritDoc} */ public function getIntegerTypeDeclarationSQL(array $field) { return 'NUMBER(10)'; } /** * {@inheritDoc} */ public function getBigIntTypeDeclarationSQL(array $field) { return 'NUMBER(20)'; } /** * {@inheritDoc} */ public function getSmallIntTypeDeclarationSQL(array $field) { return 'NUMBER(5)'; } /** * {@inheritDoc} */ public function getDateTimeTypeDeclarationSQL(array $fieldDeclaration) { return 'TIMESTAMP(0)'; } /** * {@inheritDoc} */ public function getDateTimeTzTypeDeclarationSQL(array $fieldDeclaration) { return 'TIMESTAMP(0) WITH TIME ZONE'; } /** * {@inheritDoc} */ public function getDateTypeDeclarationSQL(array $fieldDeclaration) { return 'DATE'; } /** * {@inheritDoc} */ public function getTimeTypeDeclarationSQL(array $fieldDeclaration) { return 'DATE'; } /** * {@inheritDoc} */ protected function _getCommonIntegerTypeDeclarationSQL(array $columnDef) { return ''; } /** * {@inheritDoc} */ protected function getVarcharTypeDeclarationSQLSnippet($length, $fixed) { return $fixed ? ($length ? 'CHAR(' . $length . ')' : 'CHAR(2000)') : ($length ? 'VARCHAR2(' . $length . ')' : 'VARCHAR2(4000)'); } /** * {@inheritDoc} */ public function getClobTypeDeclarationSQL(array $field) { return 'CLOB'; } public function getListDatabasesSQL() { return 'SELECT username FROM all_users'; } public function getListSequencesSQL($database) { return "SELECT sequence_name, min_value, increment_by FROM sys.all_sequences ". "WHERE SEQUENCE_OWNER = '".strtoupper($database)."'"; } /** * {@inheritDoc} */ protected function _getCreateTableSQL($table, array $columns, array $options = array()) { $indexes = isset($options['indexes']) ? $options['indexes'] : array(); $options['indexes'] = array(); $sql = parent::_getCreateTableSQL($table, $columns, $options); foreach ($columns as $name => $column) { if (isset($column['sequence'])) { $sql[] = $this->getCreateSequenceSQL($column['sequence'], 1); } if (isset($column['autoincrement']) && $column['autoincrement'] || (isset($column['autoinc']) && $column['autoinc'])) { $sql = array_merge($sql, $this->getCreateAutoincrementSql($name, $table)); } } if (isset($indexes) && ! empty($indexes)) { foreach ($indexes as $index) { $sql[] = $this->getCreateIndexSQL($index, $table); } } return $sql; } /** * {@inheritDoc} * * @license New BSD License * @link http://ezcomponents.org/docs/api/trunk/DatabaseSchema/ezcDbSchemaOracleReader.html */ public function getListTableIndexesSQL($table, $currentDatabase = null) { $table = strtoupper($table); return "SELECT uind.index_name AS name, " . " uind.index_type AS type, " . " decode( uind.uniqueness, 'NONUNIQUE', 0, 'UNIQUE', 1 ) AS is_unique, " . " uind_col.column_name AS column_name, " . " uind_col.column_position AS column_pos, " . " (SELECT ucon.constraint_type FROM user_constraints ucon WHERE ucon.constraint_name = uind.index_name) AS is_primary ". "FROM user_indexes uind, user_ind_columns uind_col " . "WHERE uind.index_name = uind_col.index_name AND uind_col.table_name = '$table' ORDER BY uind_col.column_position ASC"; } public function getListTablesSQL() { return 'SELECT * FROM sys.user_tables'; } /** * {@inheritDoc} */ public function getListViewsSQL($database) { return 'SELECT view_name, text FROM sys.user_views'; } public function getCreateViewSQL($name, $sql) { return 'CREATE VIEW ' . $name . ' AS ' . $sql; } public function getDropViewSQL($name) { return 'DROP VIEW '. $name; } public function getCreateAutoincrementSql($name, $table, $start = 1) { $table = strtoupper($table); $sql = array(); $indexName = $table . '_AI_PK'; $idx = new Index($indexName, array($name), true, true); $sql[] = 'DECLARE constraints_Count NUMBER; BEGIN SELECT COUNT(CONSTRAINT_NAME) INTO constraints_Count FROM USER_CONSTRAINTS WHERE TABLE_NAME = \''.$table.'\' AND CONSTRAINT_TYPE = \'P\'; IF constraints_Count = 0 OR constraints_Count = \'\' THEN EXECUTE IMMEDIATE \''.$this->getCreateConstraintSQL($idx, $table).'\'; END IF; END;'; $sequenceName = $table . '_SEQ'; $sequence = new Sequence($sequenceName, $start); $sql[] = $this->getCreateSequenceSQL($sequence); $triggerName = $table . '_AI_PK'; $sql[] = 'CREATE TRIGGER ' . $triggerName . ' BEFORE INSERT ON ' . $table . ' FOR EACH ROW DECLARE last_Sequence NUMBER; last_InsertID NUMBER; BEGIN SELECT ' . $sequenceName . '.NEXTVAL INTO :NEW.' . $name . ' FROM DUAL; IF (:NEW.' . $name . ' IS NULL OR :NEW.'.$name.' = 0) THEN SELECT ' . $sequenceName . '.NEXTVAL INTO :NEW.' . $name . ' FROM DUAL; ELSE SELECT NVL(Last_Number, 0) INTO last_Sequence FROM User_Sequences WHERE Sequence_Name = \'' . $sequenceName . '\'; SELECT :NEW.' . $name . ' INTO last_InsertID FROM DUAL; WHILE (last_InsertID > last_Sequence) LOOP SELECT ' . $sequenceName . '.NEXTVAL INTO last_Sequence FROM DUAL; END LOOP; END IF; END;'; return $sql; } public function getDropAutoincrementSql($table) { $table = strtoupper($table); $trigger = $table . '_AI_PK'; $sql[] = 'DROP TRIGGER ' . $trigger; $sql[] = $this->getDropSequenceSQL($table.'_SEQ'); $indexName = $table . '_AI_PK'; $sql[] = $this->getDropConstraintSQL($indexName, $table); return $sql; } public function getListTableForeignKeysSQL($table) { $table = strtoupper($table); return "SELECT alc.constraint_name, alc.DELETE_RULE, alc.search_condition, cols.column_name \"local_column\", cols.position, r_alc.table_name \"references_table\", r_cols.column_name \"foreign_column\" FROM user_cons_columns cols LEFT JOIN user_constraints alc ON alc.constraint_name = cols.constraint_name LEFT JOIN user_constraints r_alc ON alc.r_constraint_name = r_alc.constraint_name LEFT JOIN user_cons_columns r_cols ON r_alc.constraint_name = r_cols.constraint_name AND cols.position = r_cols.position WHERE alc.constraint_name = cols.constraint_name AND alc.constraint_type = 'R' AND alc.table_name = '".$table."'"; } public function getListTableConstraintsSQL($table) { $table = strtoupper($table); return 'SELECT * FROM user_constraints WHERE table_name = \'' . $table . '\''; } public function getListTableColumnsSQL($table, $database = null) { $table = strtoupper($table); $tabColumnsTableName = "user_tab_columns"; $ownerCondition = ''; if (null !== $database){ $database = strtoupper($database); $tabColumnsTableName = "all_tab_columns"; $ownerCondition = "AND c.owner = '".$database."'"; } return "SELECT c.*, d.comments FROM $tabColumnsTableName c ". "INNER JOIN user_col_comments d ON d.TABLE_NAME = c.TABLE_NAME AND d.COLUMN_NAME = c.COLUMN_NAME ". "WHERE c.table_name = '" . $table . "' ".$ownerCondition." ORDER BY c.column_name"; } /** * {@inheritDoc} */ public function getDropSequenceSQL($sequence) { if ($sequence instanceof Sequence) { $sequence = $sequence->getQuotedName($this); } return 'DROP SEQUENCE ' . $sequence; } /** * {@inheritDoc} */ public function getDropForeignKeySQL($foreignKey, $table) { if ($foreignKey instanceof ForeignKeyConstraint) { $foreignKey = $foreignKey->getQuotedName($this); } if ($table instanceof Table) { $table = $table->getQuotedName($this); } return 'ALTER TABLE ' . $table . ' DROP CONSTRAINT ' . $foreignKey; } /** * {@inheritDoc} */ public function getDropDatabaseSQL($database) { return 'DROP USER ' . $database . ' CASCADE'; } /** * {@inheritDoc} */ public function getAlterTableSQL(TableDiff $diff) { $sql = array(); $commentsSQL = array(); $columnSql = array(); $fields = array(); foreach ($diff->addedColumns as $column) { if ($this->onSchemaAlterTableAddColumn($column, $diff, $columnSql)) { continue; } $fields[] = $this->getColumnDeclarationSQL($column->getQuotedName($this), $column->toArray()); if ($comment = $this->getColumnComment($column)) { $commentsSQL[] = $this->getCommentOnColumnSQL($diff->name, $column->getName(), $comment); } } if (count($fields)) { $sql[] = 'ALTER TABLE ' . $diff->name . ' ADD (' . implode(', ', $fields) . ')'; } $fields = array(); foreach ($diff->changedColumns as $columnDiff) { if ($this->onSchemaAlterTableChangeColumn($columnDiff, $diff, $columnSql)) { continue; } $column = $columnDiff->column; $fields[] = $column->getQuotedName($this). ' ' . $this->getColumnDeclarationSQL('', $column->toArray()); if ($columnDiff->hasChanged('comment') && $comment = $this->getColumnComment($column)) { $commentsSQL[] = $this->getCommentOnColumnSQL($diff->name, $column->getName(), $comment); } } if (count($fields)) { $sql[] = 'ALTER TABLE ' . $diff->name . ' MODIFY (' . implode(', ', $fields) . ')'; } foreach ($diff->renamedColumns as $oldColumnName => $column) { if ($this->onSchemaAlterTableRenameColumn($oldColumnName, $column, $diff, $columnSql)) { continue; } $sql[] = 'ALTER TABLE ' . $diff->name . ' RENAME COLUMN ' . $oldColumnName .' TO ' . $column->getQuotedName($this); } $fields = array(); foreach ($diff->removedColumns as $column) { if ($this->onSchemaAlterTableRemoveColumn($column, $diff, $columnSql)) { continue; } $fields[] = $column->getQuotedName($this); } if (count($fields)) { $sql[] = 'ALTER TABLE ' . $diff->name . ' DROP (' . implode(', ', $fields).')'; } $tableSql = array(); if ( ! $this->onSchemaAlterTable($diff, $tableSql)) { if ($diff->newName !== false) { $sql[] = 'ALTER TABLE ' . $diff->name . ' RENAME TO ' . $diff->newName; } $sql = array_merge($sql, $this->_getAlterTableIndexForeignKeySQL($diff), $commentsSQL); } return array_merge($sql, $tableSql, $columnSql); } /** * {@inheritDoc} */ public function prefersSequences() { return true; } /** * {@inheritDoc} */ public function supportsCommentOnStatement() { return true; } /** * {@inheritDoc} */ public function getName() { return 'oracle'; } /** * {@inheritDoc} */ protected function doModifyLimitQuery($query, $limit, $offset = null) { $limit = (int) $limit; $offset = (int) $offset; if (preg_match('/^\s*SELECT/i', $query)) { if (!preg_match('/\sFROM\s/i', $query)) { $query .= " FROM dual"; } if ($limit > 0) { $max = $offset + $limit; $column = '*'; if ($offset > 0) { $min = $offset + 1; $query = 'SELECT * FROM (SELECT a.' . $column . ', rownum AS doctrine_rownum FROM (' . $query . ') a WHERE rownum <= ' . $max . ') WHERE doctrine_rownum >= ' . $min; } else { $query = 'SELECT a.' . $column . ' FROM (' . $query . ') a WHERE ROWNUM <= ' . $max; } } } return $query; } /** * {@inheritDoc} * * Oracle returns all column names in SQL result sets in uppercase. */ public function getSQLResultCasing($column) { return strtoupper($column); } public function getCreateTemporaryTableSnippetSQL() { return "CREATE GLOBAL TEMPORARY TABLE"; } /** * {@inheritDoc} */ public function getDateTimeTzFormatString() { return 'Y-m-d H:i:sP'; } /** * {@inheritDoc} */ public function getDateFormatString() { return 'Y-m-d 00:00:00'; } /** * {@inheritDoc} */ public function getTimeFormatString() { return '1900-01-01 H:i:s'; } /** * {@inheritDoc} */ public function fixSchemaElementName($schemaElementName) { if (strlen($schemaElementName) > 30) { // Trim it return substr($schemaElementName, 0, 30); } return $schemaElementName; } /** * {@inheritDoc} */ public function getMaxIdentifierLength() { return 30; } /** * {@inheritDoc} */ public function supportsSequences() { return true; } /** * {@inheritDoc} */ public function supportsForeignKeyOnUpdate() { return false; } /** * {@inheritDoc} */ public function supportsReleaseSavepoints() { return false; } /** * {@inheritDoc} */ public function getTruncateTableSQL($tableName, $cascade = false) { return 'TRUNCATE TABLE '.$tableName; } /** * {@inheritDoc} */ public function getDummySelectSQL() { return 'SELECT 1 FROM DUAL'; } /** * {@inheritDoc} */ protected function initializeDoctrineTypeMappings() { $this->doctrineTypeMapping = array( 'integer' => 'integer', 'number' => 'integer', 'pls_integer' => 'boolean', 'binary_integer' => 'boolean', 'varchar' => 'string', 'varchar2' => 'string', 'nvarchar2' => 'string', 'char' => 'string', 'nchar' => 'string', 'date' => 'datetime', 'timestamp' => 'datetime', 'timestamptz' => 'datetimetz', 'float' => 'float', 'long' => 'string', 'clob' => 'text', 'nclob' => 'text', 'raw' => 'text', 'long raw' => 'text', 'rowid' => 'string', 'urowid' => 'string', 'blob' => 'blob', ); } /** * {@inheritDoc} */ public function releaseSavePoint($savepoint) { return ''; } /** * {@inheritDoc} */ protected function getReservedKeywordsClass() { return 'Doctrine\DBAL\Platforms\Keywords\OracleKeywords'; } /** * {@inheritDoc} */ public function getBlobTypeDeclarationSQL(array $field) { return 'BLOB'; } } |