admin/xmldb/actions/edit_sentence/edit_sentence.class.php

   1 <?php // $Id$
   2
   3 ///////////////////////////////////////////////////////////////////////////
   4 //                                                                       //
   5 // NOTICE OF COPYRIGHT                                                   //
   6 //                                                                       //
   7 // Moodle - Modular Object-Oriented Dynamic Learning Environment         //
   8 //          http://moodle.com                                            //
   9 //                                                                       //
  10 // Copyright (C) 1999 onwards Martin Dougiamas        http://dougiamas.com  //
  11 //           (C) 2001-3001 Eloy Lafuente (stronk7) http://contiento.com  //
  12 //                                                                       //
  13 // This program is free software; you can redistribute it and/or modify  //
  14 // it under the terms of the GNU General Public License as published by  //
  15 // the Free Software Foundation; either version 2 of the License, or     //
  16 // (at your option) any later version.                                   //
  17 //                                                                       //
  18 // This program is distributed in the hope that it will be useful,       //
  19 // but WITHOUT ANY WARRANTY; without even the implied warranty of        //
  20 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         //
  21 // GNU General Public License for more details:                          //
  22 //                                                                       //
  23 //          http://www.gnu.org/copyleft/gpl.html                         //
  24 //                                                                       //
  25 ///////////////////////////////////////////////////////////////////////////
  26
  27 /// This class will provide the interface for all the edit sentence actions
  28
  29 class edit_sentence extends XMLDBAction {
  30
  31     /**
  32      * Init method, every subclass will have its own
  33      */
  34     function init() {
  35         parent::init();
  36
  37     /// Set own custom attributes
  38
  39     /// Get needed strings
  40         $this->loadStrings(array(
  41             'change' => 'xmldb',
  42             'vieworiginal' => 'xmldb',
  43             'viewedited' => 'xmldb',
  44             'back' => 'xmldb'
  45         ));
  46     }
  47
  48     /**
  49      * Invoke method, every class will have its own
  50      * returns true/false on completion, setting both
  51      * errormsg and output as necessary
  52      */
  53     function invoke() {
  54         parent::invoke();
  55
  56         $result = true;
  57
  58     /// Set own core attributes
  59         $this->does_generate = ACTION_GENERATE_HTML;
  60
  61     /// These are always here
  62         global $CFG, $XMLDB;
  63
  64     /// Do the job, setting result as needed
  65     /// Get the dir containing the file
  66         $dirpath = required_param('dir', PARAM_PATH);
  67         $dirpath = $CFG->dirroot . stripslashes_safe($dirpath);
  68
  69     /// Get the correct dirs
  70         if (!empty($XMLDB->dbdirs)) {
  71             $dbdir =& $XMLDB->dbdirs[$dirpath];
  72         } else {
  73             return false;
  74         }
  75         if (!empty($XMLDB->editeddirs)) {
  76             $editeddir =& $XMLDB->editeddirs[$dirpath];
  77             $structure =& $editeddir->xml_file->getStructure();
  78         }
  79
  80     /// ADD YOUR CODE HERE
  81
  82     /// Fetch request data
  83         $statementparam = required_param('statement', PARAM_CLEAN);
  84         $sentenceparam  = optional_param('sentence', NULL, PARAM_CLEAN);
  85
  86         if (!$statement =& $structure->getStatement($statementparam)) {
  87             $this->errormsg = 'Wrong statement specified: ' . $statementparam;
  88             return false;
  89         }
  90         $sentences =& $statement->getSentences();
  91
  92     /// If no sentence has been specified, edit the last one
  93         if ($sentenceparam === NULL) {
  94             end($sentences);
  95             $sentenceparam = key($sentences);
  96         }
  97
  98         if (!$sentence =& $sentences[$sentenceparam]) {
  99             $this->errormsg = 'Wrong Sentence: ' . $sentenceparam;
 100             return false;
 101         }
 102
 103         $dbdir =& $XMLDB->dbdirs[$dirpath];
 104         $origstructure =& $dbdir->xml_file->getStructure();
 105
 106     /// Based in the type of statement, print different forms
 107         if ($statement->getType() != XMLDB_STATEMENT_INSERT) {
 108         /// Only INSERT is allowed!!
 109             $this->errormsg = 'Wrong Statement Type. Only INSERT allowed';
 110             return false;
 111         } else {
 112         /// Prepare INSERT sentence
 113             $fields = $statement->getFieldsFromInsertSentence($sentence);
 114             $values = $statement->getValuesFromInsertSentence($sentence);
 115
 116         /// Add the main form
 117             $o = '<form id="form" action="index.php" method="post">';
 118             $o.= '<div>';
 119             $o.= '    <input type="hidden" name ="dir" value="' . str_replace($CFG->dirroot, '', $dirpath) . '" />';
 120             $o.= '    <input type="hidden" name ="statement" value="' . $statementparam .'" />';
 121             $o.= '    <input type="hidden" name ="sentence" value="' . $sentenceparam .'" />';
 122             $o.= '    <input type="hidden" name ="action" value="edit_sentence_save" />';
 123             $o.= '    <input type="hidden" name ="postaction" value="edit_statement" />';
 124             $o.= '    <table id="formelements" class="boxaligncenter">';
 125         /// The fields box
 126             $o.= '    <tr><td>INSERT INTO ' . s($statement->getTable()) . '</td></tr>';
 127             $o.= '    <tr><td><textarea name="fields" rows="2" cols="70" id="fields">' . s(implode(', ', $fields)) . '</textarea></td></tr>';
 128         /// The values box
 129             $o.= '    <tr><td>VALUES</td></tr>';
 130             $o.= '    <tr><td><textarea name="values" rows="2" cols="70" id="values">' . s(implode(', ', $values)) . '</textarea></td></tr>';
 131         /// The submit button
 132             $o.= '      <tr valign="top"><td><input type="submit" value="' .$this->str['change'] . '" /></td></tr>';
 133             $o.= '    </table>';
 134             $o.= '</div></form>';
 135         /// Calculate the buttons
 136             $b = ' <p class="centerpara buttons">';
 137         /// The back to edit statement button
 138             $b .= '&nbsp;<a href="index.php?action=edit_statement&amp;statement=' . urlencode($statementparam) . '&amp;dir=' . urlencode(str_replace($CFG->dirroot, '', $dirpath)) . '">[' . $this->str['back'] . ']</a>';
 139             $b .= '</p>';
 140             $o .= $b;
 141
 142             $this->output = $o;
 143         }
 144
 145     /// Launch postaction if exists (leave this here!)
 146         if ($this->getPostAction() && $result) {
 147             return $this->launch($this->getPostAction());
 148         }
 149
 150     /// Return ok if arrived here
 151         return $result;
 152     }
 153 }
 154 ?>