stronk7
299 lines
12 KiB
PHP
299 lines
12 KiB
PHP
<?php // $Id$
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///////////////////////////////////////////////////////////////////////////
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// //
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// NOTICE OF COPYRIGHT //
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// //
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// Moodle - Modular Object-Oriented Dynamic Learning Environment //
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// http://moodle.com //
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// //
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// Copyright (C) 2001-3001 Martin Dougiamas http://dougiamas.com //
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// (C) 2001-3001 Eloy Lafuente (stronk7) http://contiento.com //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation; either version 2 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License for more details: //
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// //
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// http://www.gnu.org/copyleft/gpl.html //
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// //
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///////////////////////////////////////////////////////////////////////////
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/// This class will show the PHP needed to perform the desired action
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/// with the specified table.
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class view_structure_php extends XMLDBAction {
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/**
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* Init method, every subclass will have its own
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*/
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function init() {
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parent::init();
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/// Set own custom attributes
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/// Get needed strings
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$this->loadStrings(array(
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'selectaction' => 'xmldb',
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'selecttable' => 'xmldb',
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'view' => 'xmldb',
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'back' => 'xmldb'
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));
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}
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/**
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* Invoke method, every class will have its own
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* returns true/false on completion, setting both
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* errormsg and output as necessary
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*/
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function invoke() {
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parent::invoke();
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$result = true;
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/// Set own core attributes
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$this->does_generate = ACTION_GENERATE_HTML;
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/// These are always here
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global $CFG, $XMLDB;
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/// Do the job, setting result as needed
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/// Get the dir containing the file
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$dirpath = required_param('dir', PARAM_PATH);
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$dirpath = $CFG->dirroot . stripslashes_safe($dirpath);
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/// Get the correct dirs
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if (!empty($XMLDB->dbdirs)) {
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$dbdir =& $XMLDB->dbdirs[$dirpath];
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} else {
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return false;
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}
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if (!empty($XMLDB->editeddirs)) {
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$editeddir =& $XMLDB->editeddirs[$dirpath];
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$structure =& $editeddir->xml_file->getStructure();
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}
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/// ADD YOUR CODE HERE
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$tables =& $structure->getTables();
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$table = reset($tables);
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$defaulttable = null;
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if ($table) {
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$defaulttable = $table->getName();
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}
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/// Get parameters
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$commandparam = optional_param('command', 'create_table', PARAM_PATH);
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$tableparam = optional_param('table', $defaulttable, PARAM_PATH);
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/// The back to edit xml button
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$b = ' <p align="center" class="buttons">';
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$b .= '<a href="index.php?action=edit_xml_file&dir=' . urlencode(str_replace($CFG->dirroot, '', $dirpath)) . '">[' . $this->str['back'] . ']</a>';
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$b .= '</p>';
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$o = $b;
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/// Calculate the popup of commands
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$commands = array('create_table',
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'drop_table',
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'rename_table');
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foreach ($commands as $command) {
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$popcommands[$command] = str_replace('_', ' ', $command);
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}
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/// Calculate the popup of tables
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foreach ($tables as $table) {
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$poptables[$table->getName()] = $table->getName();
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}
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/// Now build the form
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$o.= '<form id="form" action="index.php" method="post">';
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$o.= ' <input type="hidden" name ="dir" value="' . str_replace($CFG->dirroot, '', $dirpath) . '" />';
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$o.= ' <input type="hidden" name ="action" value="view_structure_php" />';
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$o.= ' <table id="formelements" align="center" cellpadding="5">';
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$o.= ' <tr><td><label for="action" accesskey="c">' . $this->str['selectaction'] .' </label>' . choose_from_menu($popcommands, 'command', $commandparam, '', '', 0, true) . ' <label for="table" accesskey="t">' . $this->str['selecttable'] . ' </label>' .choose_from_menu($poptables, 'table', $tableparam, '', '', 0, true) . '</td></tr>';
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$o.= ' <tr><td colspan="2" align="center"><input type="submit" value="' .$this->str['view'] . '" /></td></tr>';
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$o.= ' </table>';
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$o.= '</form>';
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$o.= ' <table id="phpcode" align="center" cellpadding="5">';
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$o.= ' <tr><td><textarea cols="80" rows="32">';
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/// Based on current params, call the needed function
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switch ($commandparam) {
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case 'create_table':
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$o.= s($this->create_table_php($structure, $tableparam));
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break;
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case 'drop_table':
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$o.= s($this->drop_table_php($structure, $tableparam));
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break;
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case 'rename_table':
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$o.= s($this->rename_table_php($structure, $tableparam));
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break;
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}
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$o.= '</textarea></td></tr>';
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$o.= ' </table>';
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$this->output = $o;
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/// Launch postaction if exists (leave this here!)
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if ($this->getPostAction() && $result) {
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return $this->launch($this->getPostAction());
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}
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/// Return ok if arrived here
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return $result;
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}
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/**
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* This function will generate all the PHP code needed to
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* create one table using XMLDB objects and functions
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*
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* @param XMLDBStructure structure object containing all the info
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* @param string table table code to be created
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* @return string PHP code to be used to create the table
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*/
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function create_table_php($structure, $table) {
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$result = '';
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/// Validate if we can do it
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if (!$table = $structure->getTable($table)) {
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return false;
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}
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if ($table->getAllErrors()) {
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return false;
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}
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/// Add the standard PHP header
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$result .= XMLDB_PHP_HEADER;
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/// Add contents
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$result .= XMLDB_LINEFEED;
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$result .= ' /// Define table ' . $table->getName() . ' to be created' . XMLDB_LINEFEED;
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$result .= ' $table = new XMLDBTable(' . "'" . $table->getName() . "'" . ');' . XMLDB_LINEFEED;
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$result .= XMLDB_LINEFEED;
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$result .= ' /// Adding fields to table ' . $table->getName() . XMLDB_LINEFEED;
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/// Iterate over each field
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foreach ($table->getFields() as $field) {
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/// The field header, with name
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$result .= ' $table->addFieldInfo(' . "'" . $field->getName() . "', ";
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/// The field PHP specs
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$result .= $field->getPHP(false);
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/// The end of the line
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$result .= ');' . XMLDB_LINEFEED;
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}
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/// Iterate over each key
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if ($keys = $table->getKeys()) {
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$result .= XMLDB_LINEFEED;
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$result .= ' /// Adding keys to table ' . $table->getName() . XMLDB_LINEFEED;
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foreach ($keys as $key) {
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/// The key header, with name
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$result .= ' $table->addKeyInfo(' . "'" . $key->getName() . "', ";
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/// The key PHP specs
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$result .= $key->getPHP();
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/// The end of the line
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$result .= ');' . XMLDB_LINEFEED;
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}
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}
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/// Iterate over each index
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if ($indexes = $table->getIndexes()) {
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$result .= XMLDB_LINEFEED;
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$result .= ' /// Adding indexes to table ' . $table->getName() . XMLDB_LINEFEED;
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foreach ($indexes as $index) {
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/// The index header, with name
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$result .= ' $table->addIndexInfo(' . "'" . $index->getName() . "', ";
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/// The index PHP specs
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$result .= $index->getPHP();
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/// The end of the line
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$result .= ');' . XMLDB_LINEFEED;
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}
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}
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/// Launch the proper DDL
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$result .= XMLDB_LINEFEED;
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$result .= ' /// Launch create table for ' . $table->getName() . XMLDB_LINEFEED;
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$result .= ' $result = $result && create_table($table);' . XMLDB_LINEFEED;
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/// Add standard PHP footer
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$result .= XMLDB_PHP_FOOTER;
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return $result;
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}
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/**
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* This function will generate all the PHP code needed to
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* drop one table using XMLDB objects and functions
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*
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* @param XMLDBStructure structure object containing all the info
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* @param string table table code to be dropped
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* @return string PHP code to be used to drop the table
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*/
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function drop_table_php($structure, $table) {
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$result = '';
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/// Validate if we can do it
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if (!$table = $structure->getTable($table)) {
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return false;
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}
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if ($table->getAllErrors()) {
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return false;
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}
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/// Add the standard PHP header
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$result .= XMLDB_PHP_HEADER;
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/// Add contents
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$result .= XMLDB_LINEFEED;
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$result .= ' /// Define table ' . $table->getName() . ' to be dropped' . XMLDB_LINEFEED;
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$result .= ' $table = new XMLDBTable(' . "'" . $table->getName() . "'" . ');' . XMLDB_LINEFEED;
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/// Launch the proper DDL
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$result .= XMLDB_LINEFEED;
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$result .= ' /// Launch drop table for ' . $table->getName() . XMLDB_LINEFEED;
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$result .= ' $result = $result && drop_table($table);' . XMLDB_LINEFEED;
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/// Add standard PHP footer
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$result .= XMLDB_PHP_FOOTER;
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return $result;
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}
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/**
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* This function will generate all the PHP code needed to
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* rename one table using XMLDB objects and functions
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*
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* @param XMLDBStructure structure object containing all the info
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* @param string table table code to be renamed
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* @return string PHP code to be used to rename the table
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*/
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function rename_table_php($structure, $table) {
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$result = '';
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/// Validate if we can do it
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if (!$table = $structure->getTable($table)) {
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return false;
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}
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if ($table->getAllErrors()) {
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return false;
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}
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/// Add the standard PHP header
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$result .= XMLDB_PHP_HEADER;
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/// Add contents
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$result .= XMLDB_LINEFEED;
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$result .= ' /// Define table ' . $table->getName() . ' to be renamed to NEWNAMEGOESHERE' . XMLDB_LINEFEED;
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$result .= ' $table = new XMLDBTable(' . "'" . $table->getName() . "'" . ');' . XMLDB_LINEFEED;
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/// Launch the proper DDL
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$result .= XMLDB_LINEFEED;
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$result .= ' /// Launch rename table for ' . $table->getName() . XMLDB_LINEFEED;
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$result .= ' $result = $result && rename_table($table, ' . "'NEWNAMEGOESHERE'" . ');' . XMLDB_LINEFEED;
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/// Add standard PHP footer
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$result .= XMLDB_PHP_FOOTER;
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return $result;
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}
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}
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?>
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