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all file names correspond with class name
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170
dibi/drivers/DibiSqliteReflector.php
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170
dibi/drivers/DibiSqliteReflector.php
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<?php
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/**
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* This file is part of the "dibi" - smart database abstraction layer.
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*
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* Copyright (c) 2005 David Grudl (http://davidgrudl.com)
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*
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* For the full copyright and license information, please view
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* the file license.txt that was distributed with this source code.
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*/
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/**
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* The dibi reflector for SQLite database.
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*
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* @author David Grudl
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* @package dibi\drivers
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* @internal
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*/
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class DibiSqliteReflector extends DibiObject implements IDibiReflector
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{
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/** @var IDibiDriver */
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private $driver;
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public function __construct(IDibiDriver $driver)
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{
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$this->driver = $driver;
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}
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/**
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* Returns list of tables.
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* @return array
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*/
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public function getTables()
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{
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$res = $this->driver->query("
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SELECT name, type = 'view' as view FROM sqlite_master WHERE type IN ('table', 'view')
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UNION ALL
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SELECT name, type = 'view' as view FROM sqlite_temp_master WHERE type IN ('table', 'view')
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ORDER BY name
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");
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$tables = array();
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while ($row = $res->fetch(TRUE)) {
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$tables[] = $row;
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}
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return $tables;
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}
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/**
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* Returns metadata for all columns in a table.
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* @param string
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* @return array
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*/
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public function getColumns($table)
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{
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$meta = $this->driver->query("
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SELECT sql FROM sqlite_master WHERE type = 'table' AND name = {$this->driver->escape($table, dibi::TEXT)}
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UNION ALL
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SELECT sql FROM sqlite_temp_master WHERE type = 'table' AND name = {$this->driver->escape($table, dibi::TEXT)}
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")->fetch(TRUE);
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$res = $this->driver->query("PRAGMA table_info({$this->driver->escape($table, dibi::IDENTIFIER)})");
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$columns = array();
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while ($row = $res->fetch(TRUE)) {
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$column = $row['name'];
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$pattern = "/(\"$column\"|\[$column\]|$column)\\s+[^,]+\\s+PRIMARY\\s+KEY\\s+AUTOINCREMENT/Ui";
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$type = explode('(', $row['type']);
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$columns[] = array(
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'name' => $column,
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'table' => $table,
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'fullname' => "$table.$column",
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'nativetype' => strtoupper($type[0]),
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'size' => isset($type[1]) ? (int) $type[1] : NULL,
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'nullable' => $row['notnull'] == '0',
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'default' => $row['dflt_value'],
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'autoincrement' => (bool) preg_match($pattern, $meta['sql']),
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'vendor' => $row,
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);
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}
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return $columns;
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}
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/**
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* Returns metadata for all indexes in a table.
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* @param string
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* @return array
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*/
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public function getIndexes($table)
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{
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$res = $this->driver->query("PRAGMA index_list({$this->driver->escape($table, dibi::IDENTIFIER)})");
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$indexes = array();
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while ($row = $res->fetch(TRUE)) {
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$indexes[$row['name']]['name'] = $row['name'];
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$indexes[$row['name']]['unique'] = (bool) $row['unique'];
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}
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foreach ($indexes as $index => $values) {
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$res = $this->driver->query("PRAGMA index_info({$this->driver->escape($index, dibi::IDENTIFIER)})");
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while ($row = $res->fetch(TRUE)) {
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$indexes[$index]['columns'][$row['seqno']] = $row['name'];
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}
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}
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$columns = $this->getColumns($table);
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foreach ($indexes as $index => $values) {
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$column = $indexes[$index]['columns'][0];
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$primary = FALSE;
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foreach ($columns as $info) {
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if ($column == $info['name']) {
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$primary = $info['vendor']['pk'];
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break;
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}
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}
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$indexes[$index]['primary'] = (bool) $primary;
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}
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if (!$indexes) { // @see http://www.sqlite.org/lang_createtable.html#rowid
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foreach ($columns as $column) {
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if ($column['vendor']['pk']) {
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$indexes[] = array(
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'name' => 'ROWID',
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'unique' => TRUE,
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'primary' => TRUE,
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'columns' => array($column['name']),
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);
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break;
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}
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}
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}
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return array_values($indexes);
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}
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/**
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* Returns metadata for all foreign keys in a table.
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* @param string
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* @return array
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*/
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public function getForeignKeys($table)
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{
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if (!($this->driver instanceof DibiSqlite3Driver)) {
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// throw new DibiNotSupportedException; // @see http://www.sqlite.org/foreignkeys.html
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}
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$res = $this->driver->query("PRAGMA foreign_key_list({$this->driver->escape($table, dibi::IDENTIFIER)})");
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$keys = array();
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while ($row = $res->fetch(TRUE)) {
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$keys[$row['id']]['name'] = $row['id']; // foreign key name
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$keys[$row['id']]['local'][$row['seq']] = $row['from']; // local columns
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$keys[$row['id']]['table'] = $row['table']; // referenced table
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$keys[$row['id']]['foreign'][$row['seq']] = $row['to']; // referenced columns
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$keys[$row['id']]['onDelete'] = $row['on_delete'];
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$keys[$row['id']]['onUpdate'] = $row['on_update'];
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if ($keys[$row['id']]['foreign'][0] == NULL) {
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$keys[$row['id']]['foreign'] = NULL;
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}
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}
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return array_values($keys);
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}
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}
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