admin/xmldb/actions/edit_field/edit_field.js

   1 /// $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
  28 /// Register the needed events
  29
  30     onload=function() {
  31     /// Adjust the form on load
  32         transformForm();
  33
  34     /// Get the required fields
  35         var typeField         = document.getElementById('menutype');
  36         var sequenceField     = document.getElementById('menusequence');
  37         var enumField         = document.getElementById('menuenum');
  38
  39     /// Register the rest of events
  40         if (typeField.addEventListener) {
  41         /// Standard
  42             typeField.addEventListener('change', transformForm, false);
  43             sequenceField.addEventListener('change', transformForm, false);
  44             enumField.addEventListener('change', transformForm, false);
  45         } else {
  46         /// IE 5.5
  47             typeField.attachEvent('onchange', transformForm);
  48             sequenceField.attachEvent('onchange', transformForm);
  49             enumField.attachEvent('onchange', transformForm);
  50         }
  51     }
  52
  53 /**
  54  * This function controls all modifications to perform when any field changes
  55  */
  56 function transformForm(event) {
  57
  58 /// Initialize all the needed variables
  59     var typeField         = document.getElementById('menutype');
  60     var lengthField       = document.getElementById('length');
  61     var decimalsField     = document.getElementById('decimals');
  62     var unsignedField     = document.getElementById('menuunsigned');
  63     var notnullField      = document.getElementById('menunotnull');
  64     var sequenceField     = document.getElementById('menusequence');
  65     var enumField         = document.getElementById('menuenum');
  66     var enumvaluesField   = document.getElementById('enumvalues');
  67     var defaultField      = document.getElementById('default');
  68
  69     var lengthTip         = document.getElementById('lengthtip');
  70     var decimalsTip       = document.getElementById('decimalstip');
  71
  72 /// Initially, enable everything
  73     decimalsField.disabled = false;
  74     unsignedField.disabled = false;
  75     notnullField.disabled = false;
  76     sequenceField.disabled = false;
  77     enumField.disabled = false;
  78     enumvaluesField.disabled = false;
  79     defaultField.disabled = false;
  80
  81 /// Based on enum, disable some items
  82     if (enumField.value == '0') {
  83         enumvaluesField.disabled = true;
  84         enumvaluesField.value = '';
  85     };
  86
  87 /// Based on sequence, disable some items
  88     if (sequenceField.value == '1') {
  89         unsignedField.disabled = true;
  90         unsignedField.value = '1';
  91         notnullField.disabled = true;
  92         notnullField.value = '1';
  93         defaultField.disabled = true;
  94         defaultField.value = '';
  95         enumField.disabled = true;
  96         enumField.value = '0';
  97         enumvaluesField.disabled = true;
  98         enumvaluesField.value = '';
  99     }
 100
 101
 102 /// Based on type, disable some items
 103     switch (typeField.value) {
 104         case '1':  // XMLDB_TYPE_INTEGER
 105             lengthTip.innerHTML = ' 1...20';
 106             decimalsTip.innerHTML = '';
 107             decimalsField.disabled = true;
 108             decimalsField.value = '';
 109             enumField.disabled = true;
 110             enumField.value = '0';
 111             enumvaluesField.disabled = true;
 112             enumvaluesField.value = '';
 113             break;
 114         case '2':  // XMLDB_TYPE_NUMBER
 115             lengthTip.innerHTML = ' 1...20';
 116             decimalsTip.innerHTML = ' 0...length or empty';
 117             enumField.disabled = true;
 118             enumField.value = '0';
 119             enumvaluesField.disabled = true;
 120             enumvaluesField.value = '';
 121             break;
 122         case '3':  // XMLDB_TYPE_FLOAT
 123             lengthTip.innerHTML = ' 1...20 or empty';
 124             decimalsTip.innerHTML = ' 0...length or empty';
 125             enumField.disabled = true;
 126             enumField.value = '0';
 127             enumvaluesField.disabled = true;
 128             enumvaluesField.value = '';
 129             break;
 130         case '4':  // XMLDB_TYPE_CHAR
 131             lengthTip.innerHTML = ' 1...255';
 132             decimalsTip.innerHTML = '';
 133             decimalsField.disabled = true;
 134             decimalsField.value = '';
 135             unsignedField.disabled = true;
 136             unsignedField.value = '0';
 137             sequenceField.disabled = true;
 138             sequenceField.value = '0';
 139             break;
 140         case '5':  // XMLDB_TYPE_TEXT
 141             lengthTip.innerHTML = ' small, medium, big';
 142             decimalsTip.innerHTML = '';
 143             decimalsField.disabled = true;
 144             decimalsField.value = '';
 145             unsignedField.disabled = true;
 146             unsignedField.value = '0';
 147             sequenceField.disabled = true;
 148             sequenceField.value = '0';
 149             defaultField.disabled = true;
 150             defaultField.value = '';
 151             break;
 152         case '6':  // XMLDB_TYPE_BINARY
 153             lengthTip.innerHTML = ' small, medium, big';
 154             decimalsTip.innerHTML = '';
 155             decimalsField.disabled = true;
 156             decimalsField.value = '';
 157             unsignedField.disabled = true;
 158             unsignedField.value = '0';
 159             sequenceField.disabled = true;
 160             sequenceField.value = '0';
 161             enumField.disabled = true;
 162             enumField.value = '0';
 163             enumvaluesField.disabled = true;
 164             enumvaluesField.value = '';
 165             defaultField.disabled = true;
 166             defaultField.value = '';
 167             break;
 168         case '7':  // XMLDB_TYPE_DATETIME
 169             lengthTip.innerHTML = '';
 170             lengthField.disabled = true;
 171             lengthField.value = '';
 172             decimalsTip.innerHTML = '';
 173             decimalsField.disabled = true;
 174             decimalsField.value = '';
 175             unsignedField.disabled = true;
 176             unsignedField.value = '0';
 177             sequenceField.disabled = true;
 178             sequenceField.value = '0';
 179             enumField.disabled = true;
 180             enumField.value = '0';
 181             enumvaluesField.disabled = true;
 182             enumvaluesField.value = '';
 183             defaultField.disabled = true;
 184             defaultField.value = '';
 185             break;
 186     }
 187 }