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<?php
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// +----------------------------------------------------------------------+
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// | PHP Version 4 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1998-2004 Manuel Lemos, Tomas V.V.Cox, |
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// | Stig. S. Bakken, Lukas Smith |
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// | All rights reserved. |
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// +----------------------------------------------------------------------+
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// | MDB is a merge of PEAR DB and Metabases that provides a unified DB |
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// | API as well as database abstraction for PHP applications. |
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// | This LICENSE is in the BSD license style. |
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// | |
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// | Redistribution and use in source and binary forms, with or without |
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// | modification, are permitted provided that the following conditions |
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// | are met: |
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// | |
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// | Redistributions of source code must retain the above copyright |
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// | notice, this list of conditions and the following disclaimer. |
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// | |
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// | Redistributions in binary form must reproduce the above copyright |
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// | notice, this list of conditions and the following disclaimer in the |
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// | documentation and/or other materials provided with the distribution. |
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// | |
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// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
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// | Lukas Smith nor the names of his contributors may be used to endorse |
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// | or promote products derived from this software without specific prior|
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// | written permission. |
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// | |
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// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
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// | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
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// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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// | POSSIBILITY OF SUCH DAMAGE. |
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// +----------------------------------------------------------------------+
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// | Author: Christian Dickmann <dickmann@php.net> |
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// +----------------------------------------------------------------------+
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//
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// $Id: Parser.php,v 1.30.4.1 2004/01/08 13:43:02 lsmith Exp $
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//
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require_once('XML/Parser.php');
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/**
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* Parses an XML schema file
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*
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* @package MDB
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* @category Database
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* @access private
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* @author Christian Dickmann <dickmann@php.net>
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*/
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class MDB_Parser extends XML_Parser
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{
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var $database_definition = array();
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var $elements = array();
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var $element = '';
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var $count = 0;
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var $table = array();
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var $table_name = '';
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var $field = array();
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var $field_name = '';
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var $init = array();
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var $init_name = '';
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var $init_value = '';
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var $index = array();
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var $index_name = '';
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var $var_mode = FALSE;
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var $variables = array();
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var $seq = array();
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var $seq_name = '';
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var $error = NULL;
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var $invalid_names = array(
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'user' => array(),
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'is' => array(),
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'file' => array(
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'oci' => array(),
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'oracle' => array()
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),
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'notify' => array(
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'pgsql' => array()
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),
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'restrict' => array(
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'mysql' => array()
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),
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'password' => array(
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'ibase' => array()
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)
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);
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var $fail_on_invalid_names = 1;
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function MDB_Parser($variables, $fail_on_invalid_names = 1)
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{
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$this->XML_Parser();
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$this->variables = $variables;
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$this->fail_on_invalid_names = $fail_on_invalid_names;
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}
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function startHandler($xp, $element, $attribs)
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{
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if (strtolower($element) == 'variable') {
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$this->var_mode = TRUE;
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return;
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};
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$this->elements[$this->count++] = strtolower($element);
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$this->element = implode('-', $this->elements);
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switch($this->element) {
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case 'database-table-initialization-insert':
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$this->init = array('type' => 'insert');
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break;
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case 'database-table-initialization-insert-field':
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$this->init_name = '';
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$this->init_value = '';
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break;
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case 'database-table':
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$this->table_name = '';
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$this->table = array();
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break;
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case 'database-table-declaration-field':
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$this->field_name = '';
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$this->field = array();
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break;
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case 'database-table-declaration-field-default':
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$this->field['default'] = '';
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break;
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case 'database-table-declaration-index':
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$this->index_name = '';
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$this->index = array();
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break;
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case 'database-sequence':
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$this->seq_name = '';
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$this->seq = array();
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break;
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case 'database-table-declaration-index-field':
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$this->field_name = '';
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$this->field = array();
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break;
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};
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}
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function endHandler($xp, $element)
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{
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if (strtolower($element) == 'variable') {
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$this->var_mode = FALSE;
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return;
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};
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switch($this->element) {
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/* Initialization */
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case 'database-table-initialization-insert-field':
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if (!$this->init_name) {
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$this->raiseError('field-name has to be specified', $xp);
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};
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if (isset($this->init['FIELDS'][$this->init_name])) {
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$this->raiseError('field "'.$this->init_name.'" already filled', $xp);
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};
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if (!isset($this->table['FIELDS'][$this->init_name])) {
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$this->raiseError('unkown field "'.$this->init_name.'"', $xp);
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};
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if ($this->init_value !== ''
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&& !$this->validateFieldValue($this->init_name, $this->init_value, $xp))
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{
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$this->raiseError('field "'.$this->init_name.'" has wrong value', $xp);
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};
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$this->init['FIELDS'][$this->init_name] = $this->init_value;
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break;
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case 'database-table-initialization-insert':
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$this->table['initialization'][] = $this->init;
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break;
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/* Table definition */
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case 'database-table':
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if (!isset($this->table['was'])) {
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$this->table['was'] = $this->table_name;
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};
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if (!$this->table_name) {
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$this->raiseError('tables need names', $xp);
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};
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if (isset($this->database_definition['TABLES'][$this->table_name])) {
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$this->raiseError('table "'.$this->table_name.'" already exists', $xp);
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};
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if (!isset($this->table['FIELDS'])) {
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$this->raiseError('tables need one or more fields', $xp);
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};
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if (isset($this->table['INDEXES'])) {
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foreach($this->table['INDEXES'] as $index_name => $index) {
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foreach($index['FIELDS'] as $field_name => $field) {
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if (!isset($this->table['FIELDS'][$field_name])) {
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$this->raiseError('index field "'.$field_name.'" does not exist', $xp);
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}
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if (!(isset($this->table['FIELDS'][$field_name]['notnull'])
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&& $this->table['FIELDS'][$field_name]['notnull'] == 1))
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{
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$this->raiseError('index field "'.$field_name.'" has to be "notnull"', $xp);
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}
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}
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}
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};
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$this->database_definition['TABLES'][$this->table_name] = $this->table;
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break;
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/* Field declaration */
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case 'database-table-declaration-field':
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if (!$this->field_name || !isset($this->field['type'])) {
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$this->raiseError('field "'.$this->field_name.'" was not properly specified', $xp);
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};
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if (isset($this->table['FIELDS'][$this->field_name])) {
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$this->raiseError('field "'.$this->field_name.'" already exists', $xp);
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};
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/* Invalidname check */
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if ($this->fail_on_invalid_names && isset($this->invalid_names[$this->field_name])) {
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$this->raiseError('fieldname "'.$this->field_name.'" not allowed', $xp);
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};
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/* Type check */
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switch($this->field['type']) {
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case 'integer':
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if (isset($this->field['unsigned'])
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&& $this->field['unsigned'] !== '1' && $this->field['unsigned'] !== '0')
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{
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$this->raiseError('unsigned has to be 1 or 0', $xp);
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};
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break;
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case 'text':
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case 'clob':
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case 'blob':
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if (isset($this->field['length']) && ((int)$this->field['length']) <= 0) {
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$this->raiseError('length has to be an integer greater 0', $xp);
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};
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break;
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case 'boolean':
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case 'date':
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case 'timestamp':
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case 'time':
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case 'float':
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case 'decimal':
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break;
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default:
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$this->raiseError('no valid field type ("'.$this->field['type'].'") specified', $xp);
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};
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if (!isset($this->field['was'])) {
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$this->field['was'] = $this->field_name;
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};
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if (isset($this->field['notnull']) && !$this->is_boolean($this->field['notnull'])) {
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$this->raiseError('field "notnull" has to be 1 or 0', $xp);
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};
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if (isset($this->field['notnull']) && !isset($this->field['default'])) {
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$this->raiseError('if field is "notnull", it needs a default value', $xp);
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};
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if (isset($this->field['unsigned']) && !$this->is_boolean($this->field['unsigned'])) {
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$this->raiseError('field "notnull" has to be 1 or 0', $xp);
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};
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$this->table['FIELDS'][$this->field_name] = $this->field;
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if (isset($this->field['default'])) {
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if ($this->field['type'] == 'clob' || $this->field['type'] == 'blob') {
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$this->raiseError('"'.$this->field['type'].'"-fields are not allowed to have a default value', $xp);
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};
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if ($this->field['default'] !== ''
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&& !$this->validateFieldValue($this->field_name, $this->field['default'], $xp))
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{
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$this->raiseError('default value of "'.$this->field_name.'" is of wrong type', $xp);
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};
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};
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271 |
break;
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272 |
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/* Index declaration */
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274 |
case 'database-table-declaration-index':
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if (!$this->index_name) {
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$this->raiseError('an index needs a name', $xp);
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};
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if (isset($this->table['INDEXES'][$this->index_name])) {
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$this->raiseError('index "'.$this->index_name.'" already exists', $xp);
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280 |
};
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281 |
if (isset($this->index['unique']) && !$this->is_boolean($this->index['unique'])) {
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282 |
$this->raiseError('field "unique" has to be 1 or 0', $xp);
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};
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284 |
if (!isset($this->index['was'])) {
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285 |
$this->index['was'] = $this->index_name;
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286 |
};
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287 |
$this->table['INDEXES'][$this->index_name] = $this->index;
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288 |
break;
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289 |
case 'database-table-declaration-index-field':
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290 |
if (!$this->field_name) {
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291 |
$this->raiseError('the index-field-name is required', $xp);
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292 |
};
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293 |
if (isset($this->field['sorting'])
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294 |
&& $this->field['sorting'] !== 'ascending' && $this->field['sorting'] !== 'descending') {
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295 |
$this->raiseError('sorting type unknown', $xp);
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296 |
};
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297 |
$this->index['FIELDS'][$this->field_name] = $this->field;
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298 |
break;
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299 |
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300 |
/* Sequence declaration */
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301 |
case 'database-sequence':
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302 |
if (!$this->seq_name) {
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303 |
$this->raiseError('a sequence has to have a name', $xp);
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304 |
};
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305 |
if (isset($this->database_definition['SEQUENCES'][$this->seq_name])) {
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306 |
$this->raiseError('sequence "'.$this->seq_name.'" already exists', $xp);
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307 |
};
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308 |
if (!isset($this->seq['was'])) {
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309 |
$this->seq['was'] = $this->seq_name;
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310 |
};
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311 |
if (isset($this->seq['on'])) {
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312 |
if ((!isset($this->seq['on']['table']) || !$this->seq['on']['table'])
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313 |
|| (!isset($this->seq['on']['field']) || !$this->seq['on']['field']))
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314 |
{
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315 |
$this->raiseError('sequence "'.$this->seq_name.'" was not properly defined', $xp);
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316 |
};
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317 |
};
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318 |
$this->database_definition['SEQUENCES'][$this->seq_name] = $this->seq;
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319 |
break;
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320 |
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321 |
/* End of File */
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322 |
case 'database':
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323 |
if (isset($this->database_definition['create'])
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324 |
&& !$this->is_boolean($this->database_definition['create']))
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325 |
{
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326 |
$this->raiseError('field "create" has to be 1 or 0', $xp);
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327 |
};
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328 |
if (isset($this->database_definition['overwrite'])
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329 |
&& !$this->is_boolean($this->database_definition['overwrite']))
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330 |
{
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331 |
$this->raiseError('field "overwrite" has to be 1 or 0', $xp);
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332 |
};
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333 |
if (!isset($this->database_definition['name']) || !$this->database_definition['name']) {
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334 |
$this->raiseError('database needs a name', $xp);
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335 |
};
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336 |
if (isset($this->database_definition['SEQUENCES'])) {
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337 |
foreach($this->database_definition['SEQUENCES'] as $seq_name => $seq) {
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|
338 |
if (isset($seq['on'])
|
|
|
339 |
&& !isset($this->database_definition['TABLES'][$seq['on']['table']]['FIELDS'][$seq['on']['field']]))
|
|
|
340 |
{
|
|
|
341 |
$this->raiseError('sequence "'.$seq_name.'" was assigned on unexisting field/table', $xp);
|
|
|
342 |
};
|
|
|
343 |
};
|
|
|
344 |
};
|
|
|
345 |
if (MDB::isError($this->error)) {
|
|
|
346 |
$this->database_definition = $this->error;
|
|
|
347 |
};
|
|
|
348 |
break;
|
|
|
349 |
}
|
|
|
350 |
|
|
|
351 |
unset($this->elements[--$this->count]);
|
|
|
352 |
$this->element = implode('-', $this->elements);
|
|
|
353 |
}
|
|
|
354 |
|
|
|
355 |
function validateFieldValue($field_name, &$field_value, &$xp)
|
|
|
356 |
{
|
|
|
357 |
if (!isset($this->table['FIELDS'][$field_name])) {
|
|
|
358 |
return;
|
|
|
359 |
};
|
|
|
360 |
$field_def = $this->table['FIELDS'][$field_name];
|
|
|
361 |
switch($field_def['type']) {
|
|
|
362 |
case 'text':
|
|
|
363 |
case 'clob':
|
|
|
364 |
if (isset($field_def['length']) && strlen($field_value) > $field_def['length']) {
|
|
|
365 |
return($this->raiseError('"'.$field_value.'" is not of type "'.$field_def['type'].'"', $xp));
|
|
|
366 |
};
|
|
|
367 |
break;
|
|
|
368 |
case 'blob':
|
|
|
369 |
/*
|
|
|
370 |
if (!preg_match('/^([0-9a-f]{2})*$/i', $field_value)) {
|
|
|
371 |
return($this->raiseError('"'.$field_value.'" is not of type "'.$field_def['type'].'"', $xp));
|
|
|
372 |
}
|
|
|
373 |
*/
|
|
|
374 |
$field_value = pack('H*', $field_value);
|
|
|
375 |
if (isset($field_def['length']) && strlen($field_value) > $field_def['length']) {
|
|
|
376 |
return($this->raiseError('"'.$field_value.'" is not of type "'.$field_def['type'].'"', $xp));
|
|
|
377 |
};
|
|
|
378 |
break;
|
|
|
379 |
case 'integer':
|
|
|
380 |
if ($field_value != ((int)$field_value)) {
|
|
|
381 |
return($this->raiseError('"'.$field_value.'" is not of type "'.$field_def['type'].'"', $xp));
|
|
|
382 |
};
|
|
|
383 |
$field_value = (int) $field_value;
|
|
|
384 |
if (isset($field_def['unsigned']) && $field_def['unsigned'] && $field_value < 0) {
|
|
|
385 |
return($this->raiseError('"'.$field_value.'" is not of type "'.$field_def['type'].'"', $xp));
|
|
|
386 |
};
|
|
|
387 |
break;
|
|
|
388 |
case 'boolean':
|
|
|
389 |
if (!$this->is_boolean($field_value)) {
|
|
|
390 |
return($this->raiseError('"'.$field_value.'" is not of type "'.$field_def['type'].'"', $xp));
|
|
|
391 |
}
|
|
|
392 |
break;
|
|
|
393 |
case 'date':
|
|
|
394 |
if (!preg_match('/([0-9]{4})-([0-9]{1,2})-([0-9]{1,2})/', $field_value)) {
|
|
|
395 |
return($this->raiseError('"'.$field_value.'" is not of type "'.$field_def['type'].'"', $xp));
|
|
|
396 |
}
|
|
|
397 |
break;
|
|
|
398 |
case 'timestamp':
|
|
|
399 |
if (!preg_match('/([0-9]{4})-([0-9]{1,2})-([0-9]{1,2}) ([0-9]{2}):([0-9]{2}):([0-9]{2})/', $field_value)) {
|
|
|
400 |
return($this->raiseError('"'.$field_value.'" is not of type "'.$field_def['type'].'"', $xp));
|
|
|
401 |
}
|
|
|
402 |
break;
|
|
|
403 |
case 'time':
|
|
|
404 |
if (!preg_match("/([0-9]{2}):([0-9]{2}):([0-9]{2})/", $field_value)) {
|
|
|
405 |
return($this->raiseError('"'.$field_value.'" is not of type "'.$field_def['type'].'"', $xp));
|
|
|
406 |
}
|
|
|
407 |
break;
|
|
|
408 |
case 'float':
|
|
|
409 |
case 'double':
|
|
|
410 |
if ($field_value != (double) $field_value) {
|
|
|
411 |
return($this->raiseError('"'.$field_value.'" is not of type "'.$field_def['type'].'"', $xp));
|
|
|
412 |
};
|
|
|
413 |
$field_value = (double) $field_value;
|
|
|
414 |
break;
|
|
|
415 |
}
|
|
|
416 |
return(TRUE);
|
|
|
417 |
}
|
|
|
418 |
|
|
|
419 |
function raiseError($msg, $xp = NULL)
|
|
|
420 |
{
|
|
|
421 |
if ($this->error === NULL) {
|
|
|
422 |
if(is_resource($msg)) {
|
|
|
423 |
$error = "Parser error: ";
|
|
|
424 |
$xp = $msg;
|
|
|
425 |
} else {
|
|
|
426 |
$error = "Parser error: \"".$msg."\"\n";
|
|
|
427 |
}
|
|
|
428 |
if($xp != NULL) {
|
|
|
429 |
$byte = @xml_get_current_byte_index($xp);
|
|
|
430 |
$line = @xml_get_current_line_number($xp);
|
|
|
431 |
$column = @xml_get_current_column_number($xp);
|
|
|
432 |
$error .= "Byte: $byte; Line: $line; Col: $column\n";
|
|
|
433 |
}
|
|
|
434 |
$this->error = PEAR::raiseError(NULL, MDB_ERROR_MANAGER_PARSE, NULL, NULL,
|
|
|
435 |
$error, 'MDB_Error', TRUE);
|
|
|
436 |
};
|
|
|
437 |
return(FALSE);
|
|
|
438 |
}
|
|
|
439 |
|
|
|
440 |
function is_boolean(&$value)
|
|
|
441 |
{
|
|
|
442 |
if (is_int($value) && ($value == 0 || $value == 1)) {
|
|
|
443 |
return(TRUE);
|
|
|
444 |
};
|
|
|
445 |
if ($value === '1' || $value === '0') {
|
|
|
446 |
$value = (int) $value;
|
|
|
447 |
return(TRUE);
|
|
|
448 |
};
|
|
|
449 |
switch($value)
|
|
|
450 |
{
|
|
|
451 |
case 'N':
|
|
|
452 |
case 'n':
|
|
|
453 |
case 'no':
|
|
|
454 |
case 'FALSE':
|
|
|
455 |
$value = 0;
|
|
|
456 |
break;
|
|
|
457 |
case 'Y':
|
|
|
458 |
case 'y':
|
|
|
459 |
case 'yes':
|
|
|
460 |
case 'TRUE':
|
|
|
461 |
$value = 1;
|
|
|
462 |
break;
|
|
|
463 |
default:
|
|
|
464 |
return(FALSE);
|
|
|
465 |
};
|
|
|
466 |
return(TRUE);
|
|
|
467 |
}
|
|
|
468 |
|
|
|
469 |
function cdataHandler($xp, $data)
|
|
|
470 |
{
|
|
|
471 |
if ($this->var_mode == TRUE) {
|
|
|
472 |
if (!isset($this->variables[$data])) {
|
|
|
473 |
$this->raiseError('variable "'.$data.'" not found', $xp);
|
|
|
474 |
return;
|
|
|
475 |
};
|
|
|
476 |
$data = $this->variables[$data];
|
|
|
477 |
};
|
|
|
478 |
|
|
|
479 |
switch($this->element) {
|
|
|
480 |
/* Initialization */
|
|
|
481 |
case 'database-table-initialization-insert-field-name':
|
|
|
482 |
@$this->init_name .= $data;
|
|
|
483 |
break;
|
|
|
484 |
case 'database-table-initialization-insert-field-value':
|
|
|
485 |
@$this->init_value .= $data;
|
|
|
486 |
break;
|
|
|
487 |
|
|
|
488 |
/* Database */
|
|
|
489 |
case 'database-name':
|
|
|
490 |
@$this->database_definition['name'] .= $data;
|
|
|
491 |
break;
|
|
|
492 |
case 'database-create':
|
|
|
493 |
@$this->database_definition['create'] .= $data;
|
|
|
494 |
break;
|
|
|
495 |
case 'database-overwrite':
|
|
|
496 |
@$this->database_definition['overwrite'] .= $data;
|
|
|
497 |
break;
|
|
|
498 |
case 'database-table-name':
|
|
|
499 |
@$this->table_name .= $data;
|
|
|
500 |
break;
|
|
|
501 |
case 'database-table-was':
|
|
|
502 |
@$this->table['was'] .= $data;
|
|
|
503 |
break;
|
|
|
504 |
|
|
|
505 |
/* Field declaration */
|
|
|
506 |
case 'database-table-declaration-field-name':
|
|
|
507 |
@$this->field_name .= $data;
|
|
|
508 |
break;
|
|
|
509 |
case 'database-table-declaration-field-type':
|
|
|
510 |
@$this->field['type'] .= $data;
|
|
|
511 |
break;
|
|
|
512 |
case 'database-table-declaration-field-was':
|
|
|
513 |
@$this->field['was'] .= $data;
|
|
|
514 |
break;
|
|
|
515 |
case 'database-table-declaration-field-notnull':
|
|
|
516 |
@$this->field['notnull'] .= $data;
|
|
|
517 |
break;
|
|
|
518 |
case 'database-table-declaration-field-unsigned':
|
|
|
519 |
@$this->field['unsigned'] .= $data;
|
|
|
520 |
break;
|
|
|
521 |
case 'database-table-declaration-field-default':
|
|
|
522 |
@$this->field['default'] .= $data;
|
|
|
523 |
break;
|
|
|
524 |
case 'database-table-declaration-field-length':
|
|
|
525 |
@$this->field['length'] .= $data;
|
|
|
526 |
break;
|
|
|
527 |
|
|
|
528 |
/* Index declaration */
|
|
|
529 |
case 'database-table-declaration-index-name':
|
|
|
530 |
@$this->index_name .= $data;
|
|
|
531 |
break;
|
|
|
532 |
case 'database-table-declaration-index-unique':
|
|
|
533 |
@$this->index['unique'] .= $data;
|
|
|
534 |
break;
|
|
|
535 |
case 'database-table-declaration-index-was':
|
|
|
536 |
@$this->index['was'] .= $data;
|
|
|
537 |
break;
|
|
|
538 |
case 'database-table-declaration-index-field-name':
|
|
|
539 |
@$this->field_name .= $data;
|
|
|
540 |
break;
|
|
|
541 |
case 'database-table-declaration-index-field-sorting':
|
|
|
542 |
@$this->field['sorting'] .= $data;
|
|
|
543 |
break;
|
|
|
544 |
|
|
|
545 |
/* Sequence declaration */
|
|
|
546 |
case 'database-sequence-name':
|
|
|
547 |
@$this->seq_name .= $data;
|
|
|
548 |
break;
|
|
|
549 |
case 'database-sequence-was':
|
|
|
550 |
@$this->seq['was'] .= $data;
|
|
|
551 |
break;
|
|
|
552 |
case 'database-sequence-start':
|
|
|
553 |
@$this->seq['start'] .= $data;
|
|
|
554 |
break;
|
|
|
555 |
case 'database-sequence-on-table':
|
|
|
556 |
@$this->seq['on']['table'] .= $data;
|
|
|
557 |
break;
|
|
|
558 |
case 'database-sequence-on-field':
|
|
|
559 |
@$this->seq['on']['field'] .= $data;
|
|
|
560 |
break;
|
|
|
561 |
};
|
|
|
562 |
}
|
|
|
563 |
};
|
|
|
564 |
|
|
|
565 |
?>
|