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Diffstat (limited to 'program/lib/MDB2/Driver/sqlite.php')
| -rwxr-xr-x | program/lib/MDB2/Driver/sqlite.php | 805 |
1 files changed, 0 insertions, 805 deletions
diff --git a/program/lib/MDB2/Driver/sqlite.php b/program/lib/MDB2/Driver/sqlite.php deleted file mode 100755 index 231b429d4..000000000 --- a/program/lib/MDB2/Driver/sqlite.php +++ /dev/null @@ -1,805 +0,0 @@ -<?php -// vim: set et ts=4 sw=4 fdm=marker: -// +----------------------------------------------------------------------+ -// | PHP versions 4 and 5 | -// +----------------------------------------------------------------------+ -// | Copyright (c) 1998-2004 Manuel Lemos, Tomas V.V.Cox, | -// | Stig. S. Bakken, Lukas Smith | -// | All rights reserved. | -// +----------------------------------------------------------------------+ -// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB | -// | API as well as database abstraction for PHP applications. | -// | This LICENSE is in the BSD license style. | -// | | -// | Redistribution and use in source and binary forms, with or without | -// | modification, are permitted provided that the following conditions | -// | are met: | -// | | -// | Redistributions of source code must retain the above copyright | -// | notice, this list of conditions and the following disclaimer. | -// | | -// | Redistributions in binary form must reproduce the above copyright | -// | notice, this list of conditions and the following disclaimer in the | -// | documentation and/or other materials provided with the distribution. | -// | | -// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, | -// | Lukas Smith nor the names of his contributors may be used to endorse | -// | or promote products derived from this software without specific prior| -// | written permission. | -// | | -// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | -// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | -// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | -// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | -// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | -// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | -// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS| -// | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | -// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | -// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY| -// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | -// | POSSIBILITY OF SUCH DAMAGE. | -// +----------------------------------------------------------------------+ -// | Author: Lukas Smith <smith@backendmedia.com> | -// +----------------------------------------------------------------------+ -// -// $Id$ -// - -/** - * MDB2 SQLite driver - * - * @package MDB2 - * @category Database - * @author Lukas Smith <smith@backendmedia.com> - */ -class MDB2_Driver_sqlite extends MDB2_Driver_Common -{ - // {{{ properties - var $escape_quotes = "'"; - - var $_lasterror = ''; - - // }}} - // {{{ constructor - - /** - * Constructor - */ - function __construct() - { - parent::__construct(); - - $this->phptype = 'sqlite'; - $this->dbsyntax = 'sqlite'; - - $this->supported['sequences'] = true; - $this->supported['indexes'] = true; - $this->supported['affected_rows'] = true; - $this->supported['summary_functions'] = true; - $this->supported['order_by_text'] = true; - $this->supported['current_id'] = true; - $this->supported['limit_queries'] = true; - $this->supported['LOBs'] = true; - $this->supported['replace'] = true; - $this->supported['transactions'] = true; - $this->supported['sub_selects'] = true; - $this->supported['auto_increment'] = true; - - $this->options['base_transaction_name'] = '___php_MDB2_sqlite_auto_commit_off'; - $this->options['fixed_float'] = 0; - $this->options['database_path'] = ''; - $this->options['database_extension'] = ''; - } - - // }}} - // {{{ errorInfo() - - /** - * This method is used to collect information about an error - * - * @param integer $error - * @return array - * @access public - */ - function errorInfo($error = null) - { - $native_code = null; - if ($this->connection) { - $native_code = @sqlite_last_error($this->connection); - } - $native_msg = @sqlite_error_string($native_code); - - if (is_null($error)) { - static $error_regexps; - if (empty($error_regexps)) { - $error_regexps = array( - '/^no such table:/' => MDB2_ERROR_NOSUCHTABLE, - '/^no such index:/' => MDB2_ERROR_NOT_FOUND, - '/^(table|index) .* already exists$/' => MDB2_ERROR_ALREADY_EXISTS, - '/PRIMARY KEY must be unique/i' => MDB2_ERROR_CONSTRAINT, - '/is not unique/' => MDB2_ERROR_CONSTRAINT, - '/columns .* are not unique/i' => MDB2_ERROR_CONSTRAINT, - '/uniqueness constraint failed/' => MDB2_ERROR_CONSTRAINT, - '/may not be NULL/' => MDB2_ERROR_CONSTRAINT_NOT_NULL, - '/^no such column:/' => MDB2_ERROR_NOSUCHFIELD, - '/column not present in both tables/i' => MDB2_ERROR_NOSUCHFIELD, - '/^near ".*": syntax error$/' => MDB2_ERROR_SYNTAX, - '/[0-9]+ values for [0-9]+ columns/i' => MDB2_ERROR_VALUE_COUNT_ON_ROW, - ); - } - foreach ($error_regexps as $regexp => $code) { - if (preg_match($regexp, $this->_lasterror)) { - $error = $code; - break; - } - } - } - return array($error, $native_code, $native_msg); - } - - // }}} - // {{{ escape() - - /** - * Quotes a string so it can be safely used in a query. It will quote - * the text so it can safely be used within a query. - * - * @param string $text the input string to quote - * @return string quoted string - * @access public - */ - function escape($text) - { - return @sqlite_escape_string($text); - } - - // }}} - // {{{ beginTransaction() - - /** - * Start a transaction. - * - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function beginTransaction() - { - $this->debug('starting transaction', 'beginTransaction'); - if ($this->in_transaction) { - return MDB2_OK; //nothing to do - } - if (!$this->destructor_registered && $this->opened_persistent) { - $this->destructor_registered = true; - register_shutdown_function('MDB2_closeOpenTransactions'); - } - $query = 'BEGIN TRANSACTION '.$this->options['base_transaction_name']; - $result = $this->_doQuery($query, true); - if (PEAR::isError($result)) { - return $result; - } - $this->in_transaction = true; - return MDB2_OK; - } - - // }}} - // {{{ commit() - - /** - * Commit the database changes done during a transaction that is in - * progress. - * - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function commit() - { - $this->debug('commit transaction', 'commit'); - if (!$this->in_transaction) { - return $this->raiseError(MDB2_ERROR, null, null, - 'commit: transaction changes are being auto committed'); - } - $query = 'COMMIT TRANSACTION '.$this->options['base_transaction_name']; - $result = $this->_doQuery($query, true); - if (PEAR::isError($result)) { - return $result; - } - $this->in_transaction = false; - return MDB2_OK; - } - - // }}} - // {{{ rollback() - - /** - * Cancel any database changes done during a transaction that is in - * progress. - * - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function rollback() - { - $this->debug('rolling back transaction', 'rollback'); - if (!$this->in_transaction) { - return $this->raiseError(MDB2_ERROR, null, null, - 'rollback: transactions can not be rolled back when changes are auto committed'); - } - $query = 'ROLLBACK TRANSACTION '.$this->options['base_transaction_name']; - $result = $this->_doQuery($query, true); - if (PEAR::isError($result)) { - return $result; - } - $this->in_transaction = false; - return MDB2_OK; - } - - // }}} - // {{{ getDatabaseFile() - - /** - * Builds the string with path+dbname+extension - * - * @return string full database path+file - * @access protected - */ - function _getDatabaseFile($database_name) - { - if ($database_name == '') { - return $database_name; - } - return $this->options['database_path'].$database_name.$this->options['database_extension']; - } - - // }}} - // {{{ connect() - - /** - * Connect to the database - * - * @return true on success, MDB2 Error Object on failure - **/ - function connect() - { - $database_file = $this->_getDatabaseFile($this->database_name); - if (is_resource($this->connection)) { - if (count(array_diff($this->connected_dsn, $this->dsn)) == 0 - && $this->connected_database_name == $database_file - && $this->opened_persistent == $this->options['persistent'] - ) { - return MDB2_OK; - } - $this->disconnect(false); - } - - if (!PEAR::loadExtension($this->phptype)) { - return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null, - 'connect: extension '.$this->phptype.' is not compiled into PHP'); - } - - if (!empty($this->database_name)) { - if (!file_exists($database_file)) { - if (!touch($database_file)) { - return $this->raiseError(MDB2_ERROR_NOT_FOUND); - } - if (!isset($this->dsn['mode']) - || !is_numeric($this->dsn['mode']) - ) { - $mode = 0644; - } else { - $mode = octdec($this->dsn['mode']); - } - if (!chmod($database_file, $mode)) { - return $this->raiseError(MDB2_ERROR_NOT_FOUND); - } - if (!file_exists($database_file)) { - return $this->raiseError(MDB2_ERROR_NOT_FOUND); - } - } - if (!is_file($database_file)) { - return $this->raiseError(MDB2_ERROR_INVALID); - } - if (!is_readable($database_file)) { - return $this->raiseError(MDB2_ERROR_ACCESS_VIOLATION); - } - - $connect_function = ($this->options['persistent'] ? 'sqlite_popen' : 'sqlite_open'); - $php_errormsg = ''; - @ini_set('track_errors', true); - $connection = @$connect_function($database_file); - @ini_restore('track_errors'); - $this->_lasterror = isset($php_errormsg) ? $php_errormsg : ''; - if (!$connection) { - return $this->raiseError(MDB2_ERROR_CONNECT_FAILED); - } - $this->connection = $connection; - $this->connected_dsn = $this->dsn; - $this->connected_database_name = $database_file; - $this->opened_persistent = $this->getoption('persistent'); - $this->dbsyntax = $this->dsn['dbsyntax'] ? $this->dsn['dbsyntax'] : $this->phptype; - } - return MDB2_OK; - } - - // }}} - // {{{ disconnect() - - /** - * Log out and disconnect from the database. - * - * @return mixed true on success, false if not connected and error - * object on error - * @access public - */ - function disconnect($force = true) - { - if (is_resource($this->connection)) { - if (!$this->opened_persistent || $force) { - @sqlite_close($this->connection); - } - $this->connection = 0; - } - return MDB2_OK; - } - - // }}} - // {{{ _doQuery() - - /** - * Execute a query - * @param string $query query - * @param boolean $isManip if the query is a manipulation query - * @param resource $connection - * @param string $database_name - * @return result or error object - * @access protected - */ - function _doQuery($query, $isManip = false, $connection = null, $database_name = null) - { - $this->last_query = $query; - $this->debug($query, 'query'); - if ($this->options['disable_query']) { - if ($isManip) { - return MDB2_OK; - } - return null; - } - - if (is_null($connection)) { - $error = $this->connect(); - if (PEAR::isError($error)) { - return $error; - } - $connection = $this->connection; - } - - $function = $this->options['result_buffering'] - ? 'sqlite_query' : 'sqlite_unbuffered_query'; - $php_errormsg = ''; - ini_set('track_errors', true); - $result = @$function($query.';', $connection); - ini_restore('track_errors'); - $this->_lasterror = isset($php_errormsg) ? $php_errormsg : ''; - - if (!$result) { - return $this->raiseError(); - } - - if ($isManip) { - return @sqlite_changes($connection); - } - return $result; - } - - // }}} - // {{{ _modifyQuery() - - /** - * Changes a query string for various DBMS specific reasons - * - * @param string $query query to modify - * @return the new (modified) query - * @access protected - */ - function _modifyQuery($query, $isManip, $limit, $offset) - { - if ($this->options['portability'] & MDB2_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', $query); - } - } - if ($limit > 0 - && !preg_match('/LIMIT\s*\d(\s*(,|OFFSET)\s*\d+)?/i', $query) - ) { - $query = rtrim($query); - if (substr($query, -1) == ';') { - $query = substr($query, 0, -1); - } - if ($isManip) { - $query .= " LIMIT $limit"; - } else { - $query .= " LIMIT $offset,$limit"; - } - } - return $query; - } - - - // }}} - // {{{ replace() - - /** - * Execute a SQL REPLACE query. A REPLACE query is identical to a INSERT - * query, except that if there is already a row in the table with the same - * key field values, the REPLACE query just updates its values instead of - * inserting a new row. - * - * The REPLACE type of query does not make part of the SQL standards. Since - * practically only SQLite implements it natively, this type of query is - * emulated through this method for other DBMS using standard types of - * queries inside a transaction to assure the atomicity of the operation. - * - * @access public - * - * @param string $table name of the table on which the REPLACE query will - * be executed. - * @param array $fields associative array that describes the fields and the - * values that will be inserted or updated in the specified table. The - * indexes of the array are the names of all the fields of the table. The - * values of the array are also associative arrays that describe the - * values and other properties of the table fields. - * - * Here follows a list of field properties that need to be specified: - * - * value: - * Value to be assigned to the specified field. This value may be - * of specified in database independent type format as this - * function can perform the necessary datatype conversions. - * - * Default: - * this property is required unless the Null property - * is set to 1. - * - * type - * Name of the type of the field. Currently, all types Metabase - * are supported except for clob and blob. - * - * Default: no type conversion - * - * null - * Boolean property that indicates that the value for this field - * should be set to null. - * - * The default value for fields missing in INSERT queries may be - * specified the definition of a table. Often, the default value - * is already null, but since the REPLACE may be emulated using - * an UPDATE query, make sure that all fields of the table are - * listed in this function argument array. - * - * Default: 0 - * - * key - * Boolean property that indicates that this field should be - * handled as a primary key or at least as part of the compound - * unique index of the table that will determine the row that will - * updated if it exists or inserted a new row otherwise. - * - * This function will fail if no key field is specified or if the - * value of a key field is set to null because fields that are - * part of unique index they may not be null. - * - * Default: 0 - * - * @return mixed MDB2_OK on success, a MDB2 error on failure - */ - function replace($table, $fields) - { - $count = count($fields); - $query = $values = ''; - $keys = $colnum = 0; - for (reset($fields); $colnum < $count; next($fields), $colnum++) { - $name = key($fields); - if ($colnum > 0) { - $query .= ','; - $values .= ','; - } - $query .= $name; - if (isset($fields[$name]['null']) && $fields[$name]['null']) { - $value = 'NULL'; - } else { - $value = $this->quote($fields[$name]['value'], $fields[$name]['type']); - } - $values .= $value; - if (isset($fields[$name]['key']) && $fields[$name]['key']) { - if ($value === 'NULL') { - return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null, - 'replace: key value '.$name.' may not be NULL'); - } - $keys++; - } - } - if ($keys == 0) { - return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null, - 'replace: not specified which fields are keys'); - } - $query = "REPLACE INTO $table ($query) VALUES ($values)"; - $this->last_query = $query; - $this->debug($query, 'query'); - return $this->_doQuery($query, true); - } - - // }}} - // {{{ nextID() - - /** - * returns the next free id of a sequence - * - * @param string $seq_name name of the sequence - * @param boolean $ondemand when true the seqence is - * automatic created, if it - * not exists - * - * @return mixed MDB2 Error Object or id - * @access public - */ - function nextID($seq_name, $ondemand = true) - { - $sequence_name = $this->getSequenceName($seq_name); - $query = "INSERT INTO $sequence_name (".$this->options['seqcol_name'].") VALUES (NULL)"; - $this->expectError(MDB2_ERROR_NOSUCHTABLE); - $result = $this->_doQuery($query, true); - $this->popExpect(); - if (PEAR::isError($result)) { - if ($ondemand && $result->getCode() == MDB2_ERROR_NOSUCHTABLE) { - $this->loadModule('Manager'); - // Since we are creating the sequence on demand - // we know the first id = 1 so initialize the - // sequence at 2 - $result = $this->manager->createSequence($seq_name, 2); - if (PEAR::isError($result)) { - return $this->raiseError(MDB2_ERROR, null, null, - 'nextID: on demand sequence '.$seq_name.' could not be created'); - } else { - // First ID of a newly created sequence is 1 - return 1; - } - } - return $result; - } - $value = @sqlite_last_insert_rowid($this->connection); - if (is_numeric($value) - && PEAR::isError($this->_doQuery("DELETE FROM $sequence_name WHERE ".$this->options['seqcol_name']." < $value", true)) - ) { - $this->warnings[] = 'nextID: could not delete previous sequence table values from '.$seq_name; - } - return $value; - } - - // }}} - // {{{ getAfterID() - - /** - * returns the autoincrement ID if supported or $id - * - * @param mixed $id value as returned by getBeforeId() - * @param string $table name of the table into which a new row was inserted - * @return mixed MDB2 Error Object or id - * @access public - */ - function getAfterID($id, $table) - { - $this->loadModule('Native'); - return $this->native->getInsertID(); - } - - // }}} - // {{{ currID() - - /** - * returns the current id of a sequence - * - * @param string $seq_name name of the sequence - * @return mixed MDB2 Error Object or id - * @access public - */ - function currID($seq_name) - { - $sequence_name = $this->getSequenceName($seq_name); - return $this->queryOne("SELECT MAX(".$this->options['seqcol_name'].") FROM $sequence_name", 'integer'); - } -} - -class MDB2_Result_sqlite extends MDB2_Result_Common -{ - // }}} - // {{{ fetchRow() - - /** - * Fetch a row and insert the data into an existing array. - * - * @param int $fetchmode how the array data should be indexed - * @param int $rownum number of the row where the data can be found - * @return int data array on success, a MDB2 error on failure - * @access public - */ - function &fetchRow($fetchmode = MDB2_FETCHMODE_DEFAULT, $rownum = null) - { - if (!is_null($rownum)) { - $seek = $this->seek($rownum); - if (PEAR::isError($seek)) { - return $seek; - } - } - if ($fetchmode == MDB2_FETCHMODE_DEFAULT) { - $fetchmode = $this->db->fetchmode; - } - if ($fetchmode & MDB2_FETCHMODE_ASSOC) { - $row = @sqlite_fetch_array($this->result, SQLITE_ASSOC); - if (is_array($row) - && $this->db->options['portability'] & MDB2_PORTABILITY_LOWERCASE - ) { - $row = array_change_key_case($row, CASE_LOWER); - } - } else { - $row = @sqlite_fetch_array($this->result, SQLITE_NUM); - } - if (!$row) { - if (is_null($this->result)) { - return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, - 'fetchRow: resultset has already been freed'); - } - return null; - } - if ($this->db->options['portability'] & MDB2_PORTABILITY_EMPTY_TO_NULL) { - $this->db->_convertEmptyArrayValuesToNull($row); - } - if (isset($this->values)) { - $this->_assignBindColumns($row); - } - if (isset($this->types)) { - $row = $this->db->datatype->convertResultRow($this->types, $row); - } - if ($fetchmode === MDB2_FETCHMODE_OBJECT) { - $object_class = $this->db->options['fetch_class']; - if ($object_class == 'stdClass') { - $row = (object) $row; - } else { - $row = &new $object_class($row); - } - } - ++$this->rownum; - return $row; - } - - // }}} - // {{{ _getColumnNames() - - /** - * Retrieve the names of columns returned by the DBMS in a query result. - * - * @return mixed an associative array variable - * that will hold the names of columns. The - * indexes of the array are the column names - * mapped to lower case and the values are the - * respective numbers of the columns starting - * from 0. Some DBMS may not return any - * columns when the result set does not - * contain any rows. - * - * a MDB2 error on failure - * @access private - */ - function _getColumnNames() - { - $columns = array(); - $numcols = $this->numCols(); - if (PEAR::isError($numcols)) { - return $numcols; - } - for ($column = 0; $column < $numcols; $column++) { - $column_name = @sqlite_field_name($this->result, $column); - $columns[$column_name] = $column; - } - if ($this->db->options['portability'] & MDB2_PORTABILITY_LOWERCASE) { - $columns = array_change_key_case($columns, CASE_LOWER); - } - return $columns; - } - - // }}} - // {{{ numCols() - - /** - * Count the number of columns returned by the DBMS in a query result. - * - * @access public - * @return mixed integer value with the number of columns, a MDB2 error - * on failure - */ - function numCols() - { - $cols = @sqlite_num_fields($this->result); - if (is_null($cols)) { - if (is_null($this->result)) { - return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, - 'numCols: resultset has already been freed'); - } - return $this->db->raiseError(); - } - return $cols; - } -} - -class MDB2_BufferedResult_sqlite extends MDB2_Result_sqlite -{ - // {{{ seek() - - /** - * seek to a specific row in a result set - * - * @param int $rownum number of the row where the data can be found - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function seek($rownum = 0) - { - if (!@sqlite_seek($this->result, $rownum)) { - if (is_null($this->result)) { - return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, - 'seek: resultset has already been freed'); - } - return $this->db->raiseError(MDB2_ERROR_INVALID, null, null, - 'seek: tried to seek to an invalid row number ('.$rownum.')'); - } - $this->rownum = $rownum - 1; - return MDB2_OK; - } - - // }}} - // {{{ valid() - - /** - * check if the end of the result set has been reached - * - * @return mixed true or false on sucess, a MDB2 error on failure - * @access public - */ - function valid() - { - $numrows = $this->numRows(); - if (PEAR::isError($numrows)) { - return $numrows; - } - return $this->rownum < ($numrows - 1); - } - - // }}} - // {{{ numRows() - - /** - * returns the number of rows in a result object - * - * @return mixed MDB2 Error Object or the number of rows - * @access public - */ - function numRows() - { - $rows = @sqlite_num_rows($this->result); - if (is_null($rows)) { - if (is_null($this->result)) { - return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, - 'numRows: resultset has already been freed'); - } - return $this->raiseError(); - } - return $rows; - } -} - -class MDB2_Statement_sqlite extends MDB2_Statement_Common -{ - -} - -?>
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