Query/docs/files/drivers/firebird/firebird_util.php.txt

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<?php
/**
* Query
*
* Free Query Builder / Database Abstraction Layer
*
* @package Query
* @author Timothy J. Warren
* @copyright Copyright (c) 2012 - 2014
* @link https://github.com/aviat4ion/Query
* @license http://philsturgeon.co.uk/code/dbad-license
*/
// --------------------------------------------------------------------------
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namespace Query\Driver\Util;
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/**
* Firebird-specific backup, import and creation methods
*
* @package Query
* @subpackage Drivers
*/
class Firebird_Util extends Abstract_Util {
/**
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* Convenience public function to generate sql for creating a db table
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*
* @deprecated Use the table builder class instead
* @param string $name
* @param array $fields
* @param array $constraints
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* @param bool $if_not_exists
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* @return string
*/
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public function create_table($name, $fields, array $constraints=array(), $if_not_exists=FALSE)
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{
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return parent::create_table($name, $fields, $constraints, FALSE);
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}
/**
* Drop the selected table
*
* @param string $name
* @return string
*/
public function delete_table($name)
{
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return 'DROP TABLE '.$this->get_driver()->quote_table($name);
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}
// --------------------------------------------------------------------------
/**
* Create an SQL backup file for the current database's structure
* @codeCoverageIgnore
* @param string $db_path
* @param string $new_file
* @return string
*/
public function backup_structure()
{
list($db_path, $new_file) = func_get_args();
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return ibase_backup($this->get_driver()->get_service(), $db_path, $new_file, \IBASE_BKP_METADATA_ONLY);
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}
// --------------------------------------------------------------------------
/**
* Create an SQL backup file for the current database's data
*
* @codeCoverageIgnore
* @param array $exclude
* @param bool $system_tables
* @return string
*/
public function backup_data($exclude=array(), $system_tables=FALSE)
{
// Determine which tables to use
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$tables = $this->get_driver()->get_tables();
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if($system_tables == TRUE)
{
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$tables = array_merge($tables, $this->get_driver()->get_system_tables());
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}
// Filter out the tables you don't want
if( ! empty($exclude))
{
$tables = array_diff($tables, $exclude);
}
$output_sql = '';
// Get the data for each object
foreach($tables as $t)
{
$sql = 'SELECT * FROM "'.trim($t).'"';
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$res = $this->get_driver()->query($sql);
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$obj_res = $res->fetchAll(\PDO::FETCH_ASSOC);
// Don't add to the file if the table is empty
if (count($obj_res) < 1) continue;
// Nab the column names by getting the keys of the first row
$columns = @array_keys($obj_res[0]);
$insert_rows = array();
// Create the insert statements
foreach($obj_res as $row)
{
$row = array_values($row);
// Quote values as needed by type
if(stripos($t, 'RDB$') === FALSE)
{
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$row = array_map(array($this->get_driver(), 'quote'), $row);
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$row = array_map('trim', $row);
}
$row_string = 'INSERT INTO "'.trim($t).'" ("'.implode('","', $columns).'") VALUES ('.implode(',', $row).');';
$row = NULL;
$insert_rows[] = $row_string;
}
$output_sql .= "\n\nSET TRANSACTION;\n".implode("\n", $insert_rows)."\nCOMMIT;";
}
return $output_sql;
}
}
// End of firebird_util.php