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+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * The PEAR DB driver for PHP's sqlite extension
+ * for interacting with SQLite databases
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt. If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category Database
+ * @package DB
+ * @author Urs Gehrig <urs@circle.ch>
+ * @author Mika Tuupola <tuupola@appelsiini.net>
+ * @author Daniel Convissor <danielc@php.net>
+ * @copyright 1997-2005 The PHP Group
+ * @license http://www.php.net/license/3_0.txt PHP License 3.0 3.0
+ * @version CVS: $Id$
+ * @link http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB_common class so it can be extended from
+ */
+require_once 'DB/common.php';
+
+/**
+ * The methods PEAR DB uses to interact with PHP's sqlite extension
+ * for interacting with SQLite databases
+ *
+ * These methods overload the ones declared in DB_common.
+ *
+ * NOTICE: This driver needs PHP's track_errors ini setting to be on.
+ * It is automatically turned on when connecting to the database.
+ * Make sure your scripts don't turn it off.
+ *
+ * @category Database
+ * @package DB
+ * @author Urs Gehrig <urs@circle.ch>
+ * @author Mika Tuupola <tuupola@appelsiini.net>
+ * @author Daniel Convissor <danielc@php.net>
+ * @copyright 1997-2005 The PHP Group
+ * @license http://www.php.net/license/3_0.txt PHP License 3.0 3.0
+ * @version Release: @package_version@
+ * @link http://pear.php.net/package/DB
+ */
+class DB_sqlite extends DB_common
+{
+ // {{{ properties
+
+ /**
+ * The DB driver type (mysql, oci8, odbc, etc.)
+ * @var string
+ */
+ var $phptype = 'sqlite';
+
+ /**
+ * The database syntax variant to be used (db2, access, etc.), if any
+ * @var string
+ */
+ var $dbsyntax = 'sqlite';
+
+ /**
+ * The capabilities of this DB implementation
+ *
+ * The 'new_link' element contains the PHP version that first provided
+ * new_link support for this DBMS. Contains false if it's unsupported.
+ *
+ * Meaning of the 'limit' element:
+ * + 'emulate' = emulate with fetch row by number
+ * + 'alter' = alter the query
+ * + false = skip rows
+ *
+ * @var array
+ */
+ var $features = array(
+ 'limit' => 'alter',
+ 'new_link' => false,
+ 'numrows' => true,
+ 'pconnect' => true,
+ 'prepare' => false,
+ 'ssl' => false,
+ 'transactions' => false,
+ );
+
+ /**
+ * A mapping of native error codes to DB error codes
+ *
+ * {@internal Error codes according to sqlite_exec. See the online
+ * manual at http://sqlite.org/c_interface.html for info.
+ * This error handling based on sqlite_exec is not yet implemented.}}
+ *
+ * @var array
+ */
+ var $errorcode_map = array(
+ );
+
+ /**
+ * The raw database connection created by PHP
+ * @var resource
+ */
+ var $connection;
+
+ /**
+ * The DSN information for connecting to a database
+ * @var array
+ */
+ var $dsn = array();
+
+
+ /**
+ * SQLite data types
+ *
+ * @link http://www.sqlite.org/datatypes.html
+ *
+ * @var array
+ */
+ var $keywords = array (
+ 'BLOB' => '',
+ 'BOOLEAN' => '',
+ 'CHARACTER' => '',
+ 'CLOB' => '',
+ 'FLOAT' => '',
+ 'INTEGER' => '',
+ 'KEY' => '',
+ 'NATIONAL' => '',
+ 'NUMERIC' => '',
+ 'NVARCHAR' => '',
+ 'PRIMARY' => '',
+ 'TEXT' => '',
+ 'TIMESTAMP' => '',
+ 'UNIQUE' => '',
+ 'VARCHAR' => '',
+ 'VARYING' => '',
+ );
+
+ /**
+ * The most recent error message from $php_errormsg
+ * @var string
+ * @access private
+ */
+ var $_lasterror = '';
+
+
+ // }}}
+ // {{{ constructor
+
+ /**
+ * This constructor calls <kbd>$this->DB_common()</kbd>
+ *
+ * @return void
+ */
+ function DB_sqlite()
+ {
+ $this->DB_common();
+ }
+
+ // }}}
+ // {{{ connect()
+
+ /**
+ * Connect to the database server, log in and open the database
+ *
+ * Don't call this method directly. Use DB::connect() instead.
+ *
+ * PEAR DB's sqlite driver supports the following extra DSN options:
+ * + mode The permissions for the database file, in four digit
+ * chmod octal format (eg "0600").
+ *
+ * Example of connecting to a database in read-only mode:
+ * <code>
+ * require_once 'DB.php';
+ *
+ * $dsn = 'sqlite:///path/and/name/of/db/file?mode=0400';
+ * $options = array(
+ * 'portability' => DB_PORTABILITY_ALL,
+ * );
+ *
+ * $db =& DB::connect($dsn, $options);
+ * if (PEAR::isError($db)) {
+ * die($db->getMessage());
+ * }
+ * </code>
+ *
+ * @param array $dsn the data source name
+ * @param bool $persistent should the connection be persistent?
+ *
+ * @return int DB_OK on success. A DB_Error object on failure.
+ */
+ function connect($dsn, $persistent = false)
+ {
+ if (!PEAR::loadExtension('sqlite')) {
+ return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
+ }
+
+ $this->dsn = $dsn;
+ if ($dsn['dbsyntax']) {
+ $this->dbsyntax = $dsn['dbsyntax'];
+ }
+
+ if ($dsn['database']) {
+ if (!file_exists($dsn['database'])) {
+ if (!touch($dsn['database'])) {
+ return $this->sqliteRaiseError(DB_ERROR_NOT_FOUND);
+ }
+ if (!isset($dsn['mode']) ||
+ !is_numeric($dsn['mode']))
+ {
+ $mode = 0644;
+ } else {
+ $mode = octdec($dsn['mode']);
+ }
+ if (!chmod($dsn['database'], $mode)) {
+ return $this->sqliteRaiseError(DB_ERROR_NOT_FOUND);
+ }
+ if (!file_exists($dsn['database'])) {
+ return $this->sqliteRaiseError(DB_ERROR_NOT_FOUND);
+ }
+ }
+ if (!is_file($dsn['database'])) {
+ return $this->sqliteRaiseError(DB_ERROR_INVALID);
+ }
+ if (!is_readable($dsn['database'])) {
+ return $this->sqliteRaiseError(DB_ERROR_ACCESS_VIOLATION);
+ }
+ } else {
+ return $this->sqliteRaiseError(DB_ERROR_ACCESS_VIOLATION);
+ }
+
+ $connect_function = $persistent ? 'sqlite_popen' : 'sqlite_open';
+
+ // track_errors must remain on for simpleQuery()
+ ini_set('track_errors', 1);
+ $php_errormsg = '';
+
+ if (!$this->connection = @$connect_function($dsn['database'])) {
+ return $this->raiseError(DB_ERROR_NODBSELECTED,
+ null, null, null,
+ $php_errormsg);
+ }
+ return DB_OK;
+ }
+
+ // }}}
+ // {{{ disconnect()
+
+ /**
+ * Disconnects from the database server
+ *
+ * @return bool TRUE on success, FALSE on failure
+ */
+ function disconnect()
+ {
+ $ret = @sqlite_close($this->connection);
+ $this->connection = null;
+ return $ret;
+ }
+
+ // }}}
+ // {{{ simpleQuery()
+
+ /**
+ * Sends a query to the database server
+ *
+ * NOTICE: This method needs PHP's track_errors ini setting to be on.
+ * It is automatically turned on when connecting to the database.
+ * Make sure your scripts don't turn it off.
+ *
+ * @param string the SQL query string
+ *
+ * @return mixed + a PHP result resrouce for successful SELECT queries
+ * + the DB_OK constant for other successful queries
+ * + a DB_Error object on failure
+ */
+ function simpleQuery($query)
+ {
+ $ismanip = DB::isManip($query);
+ $this->last_query = $query;
+ $query = $this->modifyQuery($query);
+
+ $php_errormsg = '';
+
+ $result = @sqlite_query($query, $this->connection);
+ $this->_lasterror = $php_errormsg ? $php_errormsg : '';
+
+ $this->result = $result;
+ if (!$this->result) {
+ return $this->sqliteRaiseError(null);
+ }
+
+ // sqlite_query() seems to allways return a resource
+ // so cant use that. Using $ismanip instead
+ if (!$ismanip) {
+ $numRows = $this->numRows($result);
+ if (is_object($numRows)) {
+ // we've got PEAR_Error
+ return $numRows;
+ }
+ return $result;
+ }
+ return DB_OK;
+ }
+
+ // }}}
+ // {{{ nextResult()
+
+ /**
+ * Move the internal sqlite result pointer to the next available result
+ *
+ * @param resource $result the valid sqlite result resource
+ *
+ * @return bool true if a result is available otherwise return false
+ */
+ function nextResult($result)
+ {
+ return false;
+ }
+
+ // }}}
+ // {{{ fetchInto()
+
+ /**
+ * Places a row from the result set into the given array
+ *
+ * Formating of the array and the data therein are configurable.
+ * See DB_result::fetchInto() for more information.
+ *
+ * This method is not meant to be called directly. Use
+ * DB_result::fetchInto() instead. It can't be declared "protected"
+ * because DB_result is a separate object.
+ *
+ * @param resource $result the query result resource
+ * @param array $arr the referenced array to put the data in
+ * @param int $fetchmode how the resulting array should be indexed
+ * @param int $rownum the row number to fetch (0 = first row)
+ *
+ * @return mixed DB_OK on success, NULL when the end of a result set is
+ * reached or on failure
+ *
+ * @see DB_result::fetchInto()
+ */
+ function fetchInto($result, &$arr, $fetchmode, $rownum = null)
+ {
+ if ($rownum !== null) {
+ if (!@sqlite_seek($this->result, $rownum)) {
+ return null;
+ }
+ }
+ if ($fetchmode & DB_FETCHMODE_ASSOC) {
+ $arr = @sqlite_fetch_array($result, SQLITE_ASSOC);
+ if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
+ $arr = array_change_key_case($arr, CASE_LOWER);
+ }
+ } else {
+ $arr = @sqlite_fetch_array($result, SQLITE_NUM);
+ }
+ if (!$arr) {
+ return null;
+ }
+ if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
+ /*
+ * Even though this DBMS already trims output, we do this because
+ * a field might have intentional whitespace at the end that
+ * gets removed by DB_PORTABILITY_RTRIM under another driver.
+ */
+ $this->_rtrimArrayValues($arr);
+ }
+ if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
+ $this->_convertNullArrayValuesToEmpty($arr);
+ }
+ return DB_OK;
+ }
+
+ // }}}
+ // {{{ freeResult()
+
+ /**
+ * Deletes the result set and frees the memory occupied by the result set
+ *
+ * This method is not meant to be called directly. Use
+ * DB_result::free() instead. It can't be declared "protected"
+ * because DB_result is a separate object.
+ *
+ * @param resource $result PHP's query result resource
+ *
+ * @return bool TRUE on success, FALSE if $result is invalid
+ *
+ * @see DB_result::free()
+ */
+ function freeResult(&$result)
+ {
+ // XXX No native free?
+ if (!is_resource($result)) {
+ return false;
+ }
+ $result = null;
+ return true;
+ }
+
+ // }}}
+ // {{{ numCols()
+
+ /**
+ * Gets the number of columns in a result set
+ *
+ * This method is not meant to be called directly. Use
+ * DB_result::numCols() instead. It can't be declared "protected"
+ * because DB_result is a separate object.
+ *
+ * @param resource $result PHP's query result resource
+ *
+ * @return int the number of columns. A DB_Error object on failure.
+ *
+ * @see DB_result::numCols()
+ */
+ function numCols($result)
+ {
+ $cols = @sqlite_num_fields($result);
+ if (!$cols) {
+ return $this->sqliteRaiseError();
+ }
+ return $cols;
+ }
+
+ // }}}
+ // {{{ numRows()
+
+ /**
+ * Gets the number of rows in a result set
+ *
+ * This method is not meant to be called directly. Use
+ * DB_result::numRows() instead. It can't be declared "protected"
+ * because DB_result is a separate object.
+ *
+ * @param resource $result PHP's query result resource
+ *
+ * @return int the number of rows. A DB_Error object on failure.
+ *
+ * @see DB_result::numRows()
+ */
+ function numRows($result)
+ {
+ $rows = @sqlite_num_rows($result);
+ if ($rows === null) {
+ return $this->sqliteRaiseError();
+ }
+ return $rows;
+ }
+
+ // }}}
+ // {{{ affected()
+
+ /**
+ * Determines the number of rows affected by a data maniuplation query
+ *
+ * 0 is returned for queries that don't manipulate data.
+ *
+ * @return int the number of rows. A DB_Error object on failure.
+ */
+ function affectedRows()
+ {
+ return @sqlite_changes($this->connection);
+ }
+
+ // }}}
+ // {{{ dropSequence()
+
+ /**
+ * Deletes a sequence
+ *
+ * @param string $seq_name name of the sequence to be deleted
+ *
+ * @return int DB_OK on success. A DB_Error object on failure.
+ *
+ * @see DB_common::dropSequence(), DB_common::getSequenceName(),
+ * DB_sqlite::nextID(), DB_sqlite::createSequence()
+ */
+ function dropSequence($seq_name)
+ {
+ return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name));
+ }
+
+ /**
+ * Creates a new sequence
+ *
+ * @param string $seq_name name of the new sequence
+ *
+ * @return int DB_OK on success. A DB_Error object on failure.
+ *
+ * @see DB_common::createSequence(), DB_common::getSequenceName(),
+ * DB_sqlite::nextID(), DB_sqlite::dropSequence()
+ */
+ function createSequence($seq_name)
+ {
+ $seqname = $this->getSequenceName($seq_name);
+ $query = 'CREATE TABLE ' . $seqname .
+ ' (id INTEGER UNSIGNED PRIMARY KEY) ';
+ $result = $this->query($query);
+ if (DB::isError($result)) {
+ return($result);
+ }
+ $query = "CREATE TRIGGER ${seqname}_cleanup AFTER INSERT ON $seqname
+ BEGIN
+ DELETE FROM $seqname WHERE id<LAST_INSERT_ROWID();
+ END ";
+ $result = $this->query($query);
+ if (DB::isError($result)) {
+ return($result);
+ }
+ }
+
+ // }}}
+ // {{{ nextId()
+
+ /**
+ * Returns the next free id in a sequence
+ *
+ * @param string $seq_name name of the sequence
+ * @param boolean $ondemand when true, the seqence is automatically
+ * created if it does not exist
+ *
+ * @return int the next id number in the sequence.
+ * A DB_Error object on failure.
+ *
+ * @see DB_common::nextID(), DB_common::getSequenceName(),
+ * DB_sqlite::createSequence(), DB_sqlite::dropSequence()
+ */
+ function nextId($seq_name, $ondemand = true)
+ {
+ $seqname = $this->getSequenceName($seq_name);
+
+ do {
+ $repeat = 0;
+ $this->pushErrorHandling(PEAR_ERROR_RETURN);
+ $result = $this->query("INSERT INTO $seqname (id) VALUES (NULL)");
+ $this->popErrorHandling();
+ if ($result === DB_OK) {
+ $id = @sqlite_last_insert_rowid($this->connection);
+ if ($id != 0) {
+ return $id;
+ }
+ } elseif ($ondemand && DB::isError($result) &&
+ $result->getCode() == DB_ERROR_NOSUCHTABLE)
+ {
+ $result = $this->createSequence($seq_name);
+ if (DB::isError($result)) {
+ return $this->raiseError($result);
+ } else {
+ $repeat = 1;
+ }
+ }
+ } while ($repeat);
+
+ return $this->raiseError($result);
+ }
+
+ // }}}
+ // {{{ getDbFileStats()
+
+ /**
+ * Get the file stats for the current database
+ *
+ * Possible arguments are dev, ino, mode, nlink, uid, gid, rdev, size,
+ * atime, mtime, ctime, blksize, blocks or a numeric key between
+ * 0 and 12.
+ *
+ * @param string $arg the array key for stats()
+ *
+ * @return mixed an array on an unspecified key, integer on a passed
+ * arg and false at a stats error
+ */
+ function getDbFileStats($arg = '')
+ {
+ $stats = stat($this->dsn['database']);
+ if ($stats == false) {
+ return false;
+ }
+ if (is_array($stats)) {
+ if (is_numeric($arg)) {
+ if (((int)$arg <= 12) & ((int)$arg >= 0)) {
+ return false;
+ }
+ return $stats[$arg ];
+ }
+ if (array_key_exists(trim($arg), $stats)) {
+ return $stats[$arg ];
+ }
+ }
+ return $stats;
+ }
+
+ // }}}
+ // {{{ escapeSimple()
+
+ /**
+ * Escapes a string according to the current DBMS's standards
+ *
+ * In SQLite, this makes things safe for inserts/updates, but may
+ * cause problems when performing text comparisons against columns
+ * containing binary data. See the
+ * {@link http://php.net/sqlite_escape_string PHP manual} for more info.
+ *
+ * @param string $str the string to be escaped
+ *
+ * @return string the escaped string
+ *
+ * @since Method available since Release 1.6.1
+ * @see DB_common::escapeSimple()
+ */
+ function escapeSimple($str)
+ {
+ return @sqlite_escape_string($str);
+ }
+
+ // }}}
+ // {{{ modifyLimitQuery()
+
+ /**
+ * Adds LIMIT clauses to a query string according to current DBMS standards
+ *
+ * @param string $query the query to modify
+ * @param int $from the row to start to fetching (0 = the first row)
+ * @param int $count the numbers of rows to fetch
+ * @param mixed $params array, string or numeric data to be used in
+ * execution of the statement. Quantity of items
+ * passed must match quantity of placeholders in
+ * query: meaning 1 placeholder for non-array
+ * parameters or 1 placeholder per array element.
+ *
+ * @return string the query string with LIMIT clauses added
+ *
+ * @access protected
+ */
+ function modifyLimitQuery($query, $from, $count, $params = array())
+ {
+ return "$query LIMIT $count OFFSET $from";
+ }
+
+ // }}}
+ // {{{ modifyQuery()
+
+ /**
+ * Changes a query string for various DBMS specific reasons
+ *
+ * This little hack lets you know how many rows were deleted
+ * when running a "DELETE FROM table" query. Only implemented
+ * if the DB_PORTABILITY_DELETE_COUNT portability option is on.
+ *
+ * @param string $query the query string to modify
+ *
+ * @return string the modified query string
+ *
+ * @access protected
+ * @see DB_common::setOption()
+ */
+ function modifyQuery($query)
+ {
+ if ($this->options['portability'] & DB_PORTABILITY_DELETE_COUNT) {
+ if (preg_match('/^\s*DELETE\s+FROM\s+(\S+)\s*$/i', $query)) {
+ $query = preg_replace('/^\s*DELETE\s+FROM\s+(\S+)\s*$/',
+ 'DELETE FROM \1 WHERE 1=1', $query);
+ }
+ }
+ return $query;
+ }
+
+ // }}}
+ // {{{ sqliteRaiseError()
+
+ /**
+ * Produces a DB_Error object regarding the current problem
+ *
+ * @param int $errno if the error is being manually raised pass a
+ * DB_ERROR* constant here. If this isn't passed
+ * the error information gathered from the DBMS.
+ *
+ * @return object the DB_Error object
+ *
+ * @see DB_common::raiseError(),
+ * DB_sqlite::errorNative(), DB_sqlite::errorCode()
+ */
+ function sqliteRaiseError($errno = null)
+ {
+ $native = $this->errorNative();
+ if ($errno === null) {
+ $errno = $this->errorCode($native);
+ }
+
+ $errorcode = @sqlite_last_error($this->connection);
+ $userinfo = "$errorcode ** $this->last_query";
+
+ return $this->raiseError($errno, null, null, $userinfo, $native);
+ }
+
+ // }}}
+ // {{{ errorNative()
+
+ /**
+ * Gets the DBMS' native error message produced by the last query
+ *
+ * {@internal This is used to retrieve more meaningfull error messages
+ * because sqlite_last_error() does not provide adequate info.}}
+ *
+ * @return string the DBMS' error message
+ */
+ function errorNative()
+ {
+ return $this->_lasterror;
+ }
+
+ // }}}
+ // {{{ errorCode()
+
+ /**
+ * Determines PEAR::DB error code from the database's text error message
+ *
+ * @param string $errormsg the error message returned from the database
+ *
+ * @return integer the DB error number
+ */
+ function errorCode($errormsg)
+ {
+ static $error_regexps;
+ if (!isset($error_regexps)) {
+ $error_regexps = array(
+ '/^no such table:/' => DB_ERROR_NOSUCHTABLE,
+ '/^no such index:/' => DB_ERROR_NOT_FOUND,
+ '/^(table|index) .* already exists$/' => DB_ERROR_ALREADY_EXISTS,
+ '/PRIMARY KEY must be unique/i' => DB_ERROR_CONSTRAINT,
+ '/is not unique/' => DB_ERROR_CONSTRAINT,
+ '/columns .* are not unique/i' => DB_ERROR_CONSTRAINT,
+ '/uniqueness constraint failed/' => DB_ERROR_CONSTRAINT,
+ '/may not be NULL/' => DB_ERROR_CONSTRAINT_NOT_NULL,
+ '/^no such column:/' => DB_ERROR_NOSUCHFIELD,
+ '/column not present in both tables/i' => DB_ERROR_NOSUCHFIELD,
+ '/^near ".*": syntax error$/' => DB_ERROR_SYNTAX,
+ '/[0-9]+ values for [0-9]+ columns/i' => DB_ERROR_VALUE_COUNT_ON_ROW,
+ );
+ }
+ foreach ($error_regexps as $regexp => $code) {
+ if (preg_match($regexp, $errormsg)) {
+ return $code;
+ }
+ }
+ // Fall back to DB_ERROR if there was no mapping.
+ return DB_ERROR;
+ }
+
+ // }}}
+ // {{{ tableInfo()
+
+ /**
+ * Returns information about a table
+ *
+ * @param string $result a string containing the name of a table
+ * @param int $mode a valid tableInfo mode
+ *
+ * @return array an associative array with the information requested.
+ * A DB_Error object on failure.
+ *
+ * @see DB_common::tableInfo()
+ * @since Method available since Release 1.7.0
+ */
+ function tableInfo($result, $mode = null)
+ {
+ if (is_string($result)) {
+ /*
+ * Probably received a table name.
+ * Create a result resource identifier.
+ */
+ $id = @sqlite_array_query($this->connection,
+ "PRAGMA table_info('$result');",
+ SQLITE_ASSOC);
+ $got_string = true;
+ } else {
+ $this->last_query = '';
+ return $this->raiseError(DB_ERROR_NOT_CAPABLE, null, null, null,
+ 'This DBMS can not obtain tableInfo' .
+ ' from result sets');
+ }
+
+ if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
+ $case_func = 'strtolower';
+ } else {
+ $case_func = 'strval';
+ }
+
+ $count = count($id);
+ $res = array();
+
+ if ($mode) {
+ $res['num_fields'] = $count;
+ }
+
+ for ($i = 0; $i < $count; $i++) {
+ if (strpos($id[$i]['type'], '(') !== false) {
+ $bits = explode('(', $id[$i]['type']);
+ $type = $bits[0];
+ $len = rtrim($bits[1],')');
+ } else {
+ $type = $id[$i]['type'];
+ $len = 0;
+ }
+
+ $flags = '';
+ if ($id[$i]['pk']) {
+ $flags .= 'primary_key ';
+ }
+ if ($id[$i]['notnull']) {
+ $flags .= 'not_null ';
+ }
+ if ($id[$i]['dflt_value'] !== null) {
+ $flags .= 'default_' . rawurlencode($id[$i]['dflt_value']);
+ }
+ $flags = trim($flags);
+
+ $res[$i] = array(
+ 'table' => $case_func($result),
+ 'name' => $case_func($id[$i]['name']),
+ 'type' => $type,
+ 'len' => $len,
+ 'flags' => $flags,
+ );
+
+ if ($mode & DB_TABLEINFO_ORDER) {
+ $res['order'][$res[$i]['name']] = $i;
+ }
+ if ($mode & DB_TABLEINFO_ORDERTABLE) {
+ $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+ }
+ }
+
+ return $res;
+ }
+
+ // }}}
+ // {{{ getSpecialQuery()
+
+ /**
+ * Obtains the query string needed for listing a given type of objects
+ *
+ * @param string $type the kind of objects you want to retrieve
+ * @param array $args SQLITE DRIVER ONLY: a private array of arguments
+ * used by the getSpecialQuery(). Do not use
+ * this directly.
+ *
+ * @return string the SQL query string or null if the driver doesn't
+ * support the object type requested
+ *
+ * @access protected
+ * @see DB_common::getListOf()
+ */
+ function getSpecialQuery($type, $args = array())
+ {
+ if (!is_array($args)) {
+ return $this->raiseError('no key specified', null, null, null,
+ 'Argument has to be an array.');
+ }
+
+ switch ($type) {
+ case 'master':
+ return 'SELECT * FROM sqlite_master;';
+ case 'tables':
+ return "SELECT name FROM sqlite_master WHERE type='table' "
+ . 'UNION ALL SELECT name FROM sqlite_temp_master '
+ . "WHERE type='table' ORDER BY name;";
+ case 'schema':
+ return 'SELECT sql FROM (SELECT * FROM sqlite_master '
+ . 'UNION ALL SELECT * FROM sqlite_temp_master) '
+ . "WHERE type!='meta' "
+ . 'ORDER BY tbl_name, type DESC, name;';
+ case 'schemax':
+ case 'schema_x':
+ /*
+ * Use like:
+ * $res = $db->query($db->getSpecialQuery('schema_x',
+ * array('table' => 'table3')));
+ */
+ return 'SELECT sql FROM (SELECT * FROM sqlite_master '
+ . 'UNION ALL SELECT * FROM sqlite_temp_master) '
+ . "WHERE tbl_name LIKE '{$args['table']}' "
+ . "AND type!='meta' "
+ . 'ORDER BY type DESC, name;';
+ case 'alter':
+ /*
+ * SQLite does not support ALTER TABLE; this is a helper query
+ * to handle this. 'table' represents the table name, 'rows'
+ * the news rows to create, 'save' the row(s) to keep _with_
+ * the data.
+ *
+ * Use like:
+ * $args = array(
+ * 'table' => $table,
+ * 'rows' => "id INTEGER PRIMARY KEY, firstname TEXT, surname TEXT, datetime TEXT",
+ * 'save' => "NULL, titel, content, datetime"
+ * );
+ * $res = $db->query( $db->getSpecialQuery('alter', $args));
+ */
+ $rows = strtr($args['rows'], $this->keywords);
+
+ $q = array(
+ 'BEGIN TRANSACTION',
+ "CREATE TEMPORARY TABLE {$args['table']}_backup ({$args['rows']})",
+ "INSERT INTO {$args['table']}_backup SELECT {$args['save']} FROM {$args['table']}",
+ "DROP TABLE {$args['table']}",
+ "CREATE TABLE {$args['table']} ({$args['rows']})",
+ "INSERT INTO {$args['table']} SELECT {$rows} FROM {$args['table']}_backup",
+ "DROP TABLE {$args['table']}_backup",
+ 'COMMIT',
+ );
+
+ /*
+ * This is a dirty hack, since the above query will not get
+ * executed with a single query call so here the query method
+ * will be called directly and return a select instead.
+ */
+ foreach ($q as $query) {
+ $this->query($query);
+ }
+ return "SELECT * FROM {$args['table']};";
+ default:
+ return null;
+ }
+ }
+
+ // }}}
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-06 08:50:23 +0000