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MySQL & MySQLi, SQLite & SQLite3 reflectors moved do external classes DibiMySqlReflector and DibiSqliteReflector

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David Grudl
2010-08-05 21:14:37 +02:00
parent 65b5e2eecd
commit 6430573d61
6 changed files with 332 additions and 478 deletions
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179
dibi/drivers/sqlite.reflector.php Normal file
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<?php
/**
* dibi - tiny'n'smart database abstraction layer
* ----------------------------------------------
*
* @copyright Copyright (c) 2005, 2010 David Grudl
* @license http://dibiphp.com/license dibi license
* @link http://dibiphp.com
* @package dibi\drivers
*/
/**
* The dibi reflector for SQLite database.
*
* @copyright Copyright (c) 2005, 2010 David Grudl
* @package dibi\drivers
* @internal
*/
class DibiSqliteReflector extends DibiObject implements IDibiReflector
{
/** @var IDibiDriver */
private $driver;
public function __construct(IDibiDriver $driver)
{
$this->driver = $driver;
}
/**
* Returns list of tables.
* @return array
*/
public function getTables()
{
$this->driver->query("
SELECT name, type = 'view' as view FROM sqlite_master WHERE type IN ('table', 'view')
UNION ALL
SELECT name, type = 'view' as view FROM sqlite_temp_master WHERE type IN ('table', 'view')
ORDER BY name
");
$res = array();
while ($row = $this->driver->fetch(TRUE)) {
$res[] = $row;
}
$this->driver->free();
return $res;
}
/**
* Returns metadata for all columns in a table.
* @param string
* @return array
*/
public function getColumns($table)
{
$this->driver->query("
SELECT sql FROM sqlite_master WHERE type = 'table' AND name = '$table'
UNION ALL
SELECT sql FROM sqlite_temp_master WHERE type = 'table' AND name = '$table'"
);
$meta = $this->driver->fetch(TRUE);
$this->driver->free();
$this->driver->query("PRAGMA table_info([$table])");
$res = array();
while ($row = $this->driver->fetch(TRUE)) {
$column = $row['name'];
$pattern = "/(\"$column\"|\[$column\]|$column)\s+[^,]+\s+PRIMARY\s+KEY\s+AUTOINCREMENT/Ui";
$type = explode('(', $row['type']);
$res[] = array(
'name' => $column,
'table' => $table,
'fullname' => "$table.$column",
'nativetype' => strtoupper($type[0]),
'size' => isset($type[1]) ? (int) $type[1] : NULL,
'nullable' => $row['notnull'] == '0',
'default' => $row['dflt_value'],
'autoincrement' => (bool) preg_match($pattern, $meta['sql']),
'vendor' => $row,
);
}
$this->driver->free();
return $res;
}
/**
* Returns metadata for all indexes in a table.
* @param string
* @return array
*/
public function getIndexes($table)
{
$this->driver->query("PRAGMA index_list([$table])");
$res = array();
while ($row = $this->driver->fetch(TRUE)) {
$res[$row['name']]['name'] = $row['name'];
$res[$row['name']]['unique'] = (bool) $row['unique'];
}
$this->driver->free();
foreach ($res as $index => $values) {
$this->driver->query("PRAGMA index_info([$index])");
while ($row = $this->driver->fetch(TRUE)) {
$res[$index]['columns'][$row['seqno']] = $row['name'];
}
}
$this->driver->free();
$columns = $this->getColumns($table);
foreach ($res as $index => $values) {
$column = $res[$index]['columns'][0];
$primary = FALSE;
foreach ($columns as $info) {
if ($column == $info['name']) {
$primary = $info['vendor']['pk'];
break;
}
}
$res[$index]['primary'] = (bool) $primary;
}
if (!$res) { // @see http://www.sqlite.org/lang_createtable.html#rowid
foreach ($columns as $column) {
if ($column['vendor']['pk']) {
$res[] = array(
'name' => 'ROWID',
'unique' => TRUE,
'primary' => TRUE,
'columns' => array($column['name']),
);
break;
}
}
}
return array_values($res);
}
/**
* Returns metadata for all foreign keys in a table.
* @param string
* @return array
*/
public function getForeignKeys($table)
{
if (!($this->driver instanceof DibiSqlite3Driver)) {
// throw new NotSupportedException; // @see http://www.sqlite.org/foreignkeys.html
}
$this->driver->query("PRAGMA foreign_key_list([$table])");
$res = array();
while ($row = $this->driver->fetch(TRUE)) {
$res[$row['id']]['name'] = $row['id']; // foreign key name
$res[$row['id']]['local'][$row['seq']] = $row['from']; // local columns
$res[$row['id']]['table'] = $row['table']; // referenced table
$res[$row['id']]['foreign'][$row['seq']] = $row['to']; // referenced columns
$res[$row['id']]['onDelete'] = $row['on_delete'];
$res[$row['id']]['onUpdate'] = $row['on_update'];
if ($res[$row['id']]['foreign'][0] == NULL) {
$res[$row['id']]['foreign'] = NULL;
}
}
$this->driver->free();
return array_values($res);
}
}