/** * Returns $table's CREATE definition * * @param string $db the database name * @param string $table the table name * @param string $crlf the end of line sequence * @param string $error_url the url to go back in case * of error * @param bool $show_dates whether to include creation/ * update/check dates * @param bool $add_semicolon whether to add semicolon and * end-of-line at the end * @param bool $view whether we're handling a view * @param bool $update_indexes_increments whether we need to update * two global variables * @param array $aliases Aliases of db/table/columns * * @return string resulting schema */ public function getTableDef($db, $table, $crlf, $error_url, $show_dates = false, $add_semicolon = true, $view = false, $update_indexes_increments = true, $aliases = array()) { global $sql_drop_table, $sql_backquotes, $sql_constraints, $sql_constraints_query, $sql_indexes, $sql_indexes_query, $sql_auto_increments, $sql_drop_foreign_keys; $db_alias = $db; $table_alias = $table; $this->initAlias($aliases, $db_alias, $table_alias); $schema_create = ''; $auto_increment = ''; $new_crlf = $crlf; if (isset($GLOBALS['sql_compatibility'])) { $compat = $GLOBALS['sql_compatibility']; } else { $compat = 'NONE'; } // need to use PMA\libraries\DatabaseInterface::QUERY_STORE // with $GLOBALS['dbi']->numRows() in mysqli $result = $GLOBALS['dbi']->query('SHOW TABLE STATUS FROM ' . Util::backquote($db) . ' WHERE Name = \'' . Util::sqlAddSlashes($table) . '\'', null, DatabaseInterface::QUERY_STORE); if ($result != false) { if ($GLOBALS['dbi']->numRows($result) > 0) { $tmpres = $GLOBALS['dbi']->fetchAssoc($result); // Here we optionally add the AUTO_INCREMENT next value, // but starting with MySQL 5.0.24, the clause is already included // in SHOW CREATE TABLE so we'll remove it below if (isset($GLOBALS['sql_auto_increment']) && !empty($tmpres['Auto_increment'])) { $auto_increment .= ' AUTO_INCREMENT=' . $tmpres['Auto_increment'] . ' '; } if ($show_dates && isset($tmpres['Create_time']) && !empty($tmpres['Create_time'])) { $schema_create .= $this->_exportComment(__('Creation:') . ' ' . Util::localisedDate(strtotime($tmpres['Create_time']))); $new_crlf = $this->_exportComment() . $crlf; } if ($show_dates && isset($tmpres['Update_time']) && !empty($tmpres['Update_time'])) { $schema_create .= $this->_exportComment(__('Last update:') . ' ' . Util::localisedDate(strtotime($tmpres['Update_time']))); $new_crlf = $this->_exportComment() . $crlf; } if ($show_dates && isset($tmpres['Check_time']) && !empty($tmpres['Check_time'])) { $schema_create .= $this->_exportComment(__('Last check:') . ' ' . Util::localisedDate(strtotime($tmpres['Check_time']))); $new_crlf = $this->_exportComment() . $crlf; } } $GLOBALS['dbi']->freeResult($result); } $schema_create .= $new_crlf; // no need to generate a DROP VIEW here, it was done earlier if (!empty($sql_drop_table) && !$GLOBALS['dbi']->getTable($db, $table)->isView()) { $schema_create .= 'DROP TABLE IF EXISTS ' . Util::backquote($table_alias, $sql_backquotes) . ';' . $crlf; } // Complete table dump, // Whether to quote table and column names or not if ($sql_backquotes) { $GLOBALS['dbi']->query('SET SQL_QUOTE_SHOW_CREATE = 1'); } else { $GLOBALS['dbi']->query('SET SQL_QUOTE_SHOW_CREATE = 0'); } // I don't see the reason why this unbuffered query could cause problems, // because SHOW CREATE TABLE returns only one row, and we free the // results below. Nonetheless, we got 2 user reports about this // (see bug 1562533) so I removed the unbuffered mode. // $result = $GLOBALS['dbi']->query('SHOW CREATE TABLE ' . backquote($db) // . '.' . backquote($table), null, DatabaseInterface::QUERY_UNBUFFERED); // // Note: SHOW CREATE TABLE, at least in MySQL 5.1.23, does not // produce a displayable result for the default value of a BIT // column, nor does the mysqldump command. See MySQL bug 35796 $result = $GLOBALS['dbi']->tryQuery('SHOW CREATE TABLE ' . Util::backquote($db) . '.' . Util::backquote($table)); // an error can happen, for example the table is crashed $tmp_error = $GLOBALS['dbi']->getError(); if ($tmp_error) { return $this->_exportComment(__('in use') . '(' . $tmp_error . ')'); } // Old mode is stored so it can be restored once exporting is done. $old_mode = Context::$MODE; $warning = ''; if ($result != false && ($row = $GLOBALS['dbi']->fetchRow($result))) { $create_query = $row[1]; unset($row); // Convert end of line chars to one that we want (note that MySQL // doesn't return query it will accept in all cases) if (mb_strpos($create_query, "(\r\n ")) { $create_query = str_replace("\r\n", $crlf, $create_query); } elseif (mb_strpos($create_query, "(\n ")) { $create_query = str_replace("\n", $crlf, $create_query); } elseif (mb_strpos($create_query, "(\r ")) { $create_query = str_replace("\r", $crlf, $create_query); } /* * Drop database name from VIEW creation. * * This is a bit tricky, but we need to issue SHOW CREATE TABLE with * database name, but we don't want name to show up in CREATE VIEW * statement. */ if ($view) { $create_query = preg_replace('/' . preg_quote(Util::backquote($db)) . '\\./', '', $create_query); } // Substitute aliases in `CREATE` query. $create_query = $this->replaceWithAliases($create_query, $aliases, $db, $table, $flag); // One warning per view. if ($flag && $view) { $warning = $this->_exportComment() . $this->_exportComment(__('It appears your database uses views;')) . $this->_exportComment(__('alias export may not work reliably in all cases.')) . $this->_exportComment(); } // Adding IF NOT EXISTS, if required. if (isset($GLOBALS['sql_if_not_exists'])) { $create_query = preg_replace('/^CREATE TABLE/', 'CREATE TABLE IF NOT EXISTS', $create_query); } // Making the query MSSQL compatible. if ($compat == 'MSSQL') { $create_query = $this->_makeCreateTableMSSQLCompatible($create_query); } // Views have no constraints, indexes, etc. They do not require any // analysis. if (!$view) { // Using appropriate quotes. if ($compat === 'MSSQL' || $sql_backquotes === '"') { Context::$MODE |= Context::ANSI_QUOTES; } /** * Parser used for analysis. * * @var Parser */ $parser = new Parser($create_query); } if (!empty($parser->statements[0]->fields)) { /** * `CREATE TABLE` statement. * * @var SelectStatement */ $statement = $parser->statements[0]; /** * Fragments containining definition of each constraint. * * @var array */ $constraints = array(); /** * Fragments containining definition of each index. * * @var array */ $indexes = array(); /** * Fragments containining definition of each FULLTEXT index. * * @var array */ $indexes_fulltext = array(); /** * Fragments containining definition of each foreign key that will * be dropped. * * @var array */ $dropped = array(); /** * Fragment containining definition of the `AUTO_INCREMENT`. * * @var array */ $auto_increment = array(); // Scanning each field of the `CREATE` statement to fill the arrays // above. // If the field is used in any of the arrays above, it is removed // from the original definition. // Also, AUTO_INCREMENT attribute is removed. /** @var CreateDefinition $field */ foreach ($statement->fields as $key => $field) { if ($field->isConstraint) { // Creating the parts that add constraints. $constraints[] = $field::build($field); unset($statement->fields[$key]); } elseif (!empty($field->key)) { // Creating the parts that add indexes (must not be // constraints). if ($field->key->type === 'FULLTEXT KEY') { $indexes_fulltext[] = $field->build($field); unset($statement->fields[$key]); } else { if (empty($GLOBALS['sql_if_not_exists'])) { $indexes[] = $field->build($field); unset($statement->fields[$key]); } } } // Creating the parts that drop foreign keys. if (!empty($field->key)) { if ($field->key->type === 'FOREIGN KEY') { $dropped[] = 'FOREIGN KEY ' . Context::escape($field->name); unset($statement->fields[$key]); } } // Dropping AUTO_INCREMENT. if (!empty($field->options)) { if ($field->options->has('AUTO_INCREMENT') && empty($GLOBALS['sql_if_not_exists'])) { $auto_increment[] = $field::build($field); $field->options->remove('AUTO_INCREMENT'); } } } /** * The header of the `ALTER` statement (`ALTER TABLE tbl`). * * @var string */ $alter_header = 'ALTER TABLE ' . Util::backquoteCompat($table_alias, $compat, $sql_backquotes); /** * The footer of the `ALTER` statement (usually ';') * * @var string */ $alter_footer = ';' . $crlf; // Generating constraints-related query. if (!empty($constraints)) { $sql_constraints_query = $alter_header . $crlf . ' ADD ' . implode(',' . $crlf . ' ADD ', $constraints) . $alter_footer; $sql_constraints = $this->generateComment($crlf, $sql_constraints, __('Constraints for dumped tables'), __('Constraints for table'), $table_alias, $compat) . $sql_constraints_query; } // Generating indexes-related query. $sql_indexes_query = ''; if (!empty($indexes)) { $sql_indexes_query .= $alter_header . $crlf . ' ADD ' . implode(',' . $crlf . ' ADD ', $indexes) . $alter_footer; } if (!empty($indexes_fulltext)) { // InnoDB supports one FULLTEXT index creation at a time. // So FULLTEXT indexes are created one-by-one after other // indexes where created. $sql_indexes_query .= $alter_header . ' ADD ' . implode($alter_footer . $alter_header . ' ADD ', $indexes_fulltext) . $alter_footer; } if (!empty($indexes) || !empty($indexes_fulltext)) { $sql_indexes = $this->generateComment($crlf, $sql_indexes, __('Indexes for dumped tables'), __('Indexes for table'), $table_alias, $compat) . $sql_indexes_query; } // Generating drop foreign keys-related query. if (!empty($dropped)) { $sql_drop_foreign_keys = $alter_header . $crlf . ' DROP ' . implode(',' . $crlf . ' DROP ', $dropped) . $alter_footer; } // Generating auto-increment-related query. if (!empty($auto_increment) && $update_indexes_increments) { $sql_auto_increments_query = $alter_header . $crlf . ' MODIFY ' . implode(',' . $crlf . ' MODIFY ', $auto_increment); if (isset($GLOBALS['sql_auto_increment']) && $statement->entityOptions->has('AUTO_INCREMENT') !== false) { $sql_auto_increments_query .= ', AUTO_INCREMENT=' . $statement->entityOptions->has('AUTO_INCREMENT'); } $sql_auto_increments_query .= ';'; $sql_auto_increments = $this->generateComment($crlf, $sql_auto_increments, __('AUTO_INCREMENT for dumped tables'), __('AUTO_INCREMENT for table'), $table_alias, $compat) . $sql_auto_increments_query; } // Removing the `AUTO_INCREMENT` attribute from the `CREATE TABLE` // too. if (!empty($statement->entityOptions) && (empty($GLOBALS['sql_if_not_exists']) || empty($GLOBALS['sql_auto_increment']))) { $statement->entityOptions->remove('AUTO_INCREMENT'); } // Rebuilding the query. $create_query = $statement->build(); } $schema_create .= $create_query; } $GLOBALS['dbi']->freeResult($result); // Restoring old mode. Context::$MODE = $old_mode; return $warning . $schema_create . ($add_semicolon ? ';' . $crlf : ''); }