mod/data/field/checkbox/field.class.php

   1 <?php  // $Id$
   2 ///////////////////////////////////////////////////////////////////////////
   3 //                                                                       //
   4 // NOTICE OF COPYRIGHT                                                   //
   5 //                                                                       //
   6 // Moodle - Modular Object-Oriented Dynamic Learning Environment         //
   7 //          http://moodle.org                                            //
   8 //                                                                       //
   9 // Copyright (C) 1999-onwards Moodle Pty Ltd  http://moodle.com          //
  10 //                                                                       //
  11 // This program is free software; you can redistribute it and/or modify  //
  12 // it under the terms of the GNU General Public License as published by  //
  13 // the Free Software Foundation; either version 2 of the License, or     //
  14 // (at your option) any later version.                                   //
  15 //                                                                       //
  16 // This program is distributed in the hope that it will be useful,       //
  17 // but WITHOUT ANY WARRANTY; without even the implied warranty of        //
  18 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         //
  19 // GNU General Public License for more details:                          //
  20 //                                                                       //
  21 //          http://www.gnu.org/copyleft/gpl.html                         //
  22 //                                                                       //
  23 ///////////////////////////////////////////////////////////////////////////
  24
  25 class data_field_checkbox extends data_field_base {
  26
  27     var $type = 'checkbox';
  28
  29     function data_field_checkbox($field=0, $data=0) {
  30         parent::data_field_base($field, $data);
  31     }
  32
  33     function display_add_field($recordid=0) {
  34         global $CFG;
  35
  36         $content = array();
  37
  38         if ($recordid) {
  39             $content = get_field('data_content', 'content', 'fieldid', $this->field->id, 'recordid', $recordid);
  40             $content = explode('##', $content);
  41         }
  42
  43         $str = '<div title="'.s($this->field->description).'">';
  44         $str .= '<fieldset><legend><span class="accesshide">'.$this->field->name.'</span></legend>';
  45
  46         $i = 0;
  47         foreach (explode("\n", $this->field->param1) as $checkbox) {
  48             $checkbox = trim($checkbox);
  49             if ($checkbox === '') {
  50                 continue; // skip empty lines
  51             }
  52             $str .= '<input type="checkbox" id="field_'.$this->field->id.'_'.$i.'" name="field_' . $this->field->id . '[]" ';
  53             $str .= 'value="' . s($checkbox) . '" ';
  54
  55             if (array_search($checkbox, $content) !== false) {
  56                 $str .= 'checked />';
  57             } else {
  58                 $str .= '/>';
  59             }
  60             $str .= '<label for="field_'.$this->field->id.'_'.$i.'">'.$checkbox.'</label><br />';
  61             $i++;
  62         }
  63         $str .= '</fieldset>';
  64         $str .= '</div>';
  65         return $str;
  66     }
  67
  68     function display_search_field($value='') {
  69         global $CFG;
  70         $temp = get_records_sql_menu('SELECT id, content from '.$CFG->prefix.'data_content WHERE fieldid='.$this->field->id.' GROUP BY content ORDER BY content');
  71         $options = array();
  72         if(!empty($temp)) {
  73             $options[''] = '';              //Make first index blank.
  74             foreach ($temp as $key) {
  75                 $options[$key] = $key;  //Build following indicies from the sql.
  76             }
  77         }
  78         return choose_from_menu($options, 'f_'.$this->field->id, $value, 'choose', '', 0, true);
  79     }
  80
  81     function parse_search_field() {
  82         return optional_param('f_'.$this->field->id, '', PARAM_NOTAGS);
  83     }
  84
  85     function generate_sql($tablealias, $value) {
  86         return " ({$tablealias}.fieldid = {$this->field->id} AND {$tablealias}.content = '$value') ";
  87     }
  88
  89     function update_content($recordid, $value, $name='') {
  90         $content = new object();
  91         $content->fieldid = $this->field->id;
  92         $content->recordid = $recordid;
  93         $content->content = $this->format_data_field_checkbox_content($value);
  94
  95         if ($oldcontent = get_record('data_content','fieldid', $this->field->id, 'recordid', $recordid)) {
  96             $content->id = $oldcontent->id;
  97             return update_record('data_content', $content);
  98         } else {
  99             return insert_record('data_content', $content);
 100         }
 101     }
 102
 103     function display_browse_field($recordid, $template) {
 104
 105         if ($content = get_record('data_content', 'fieldid', $this->field->id, 'recordid', $recordid)){
 106             $contentArr = array();
 107             if (!empty($content->content)) {
 108                 $contentArr = explode('##', $content->content);
 109             }
 110             $str = '';
 111             foreach ($contentArr as $line) {
 112                 $str .= $line . "<br />\n";
 113             }
 114             return $str;
 115         }
 116         return false;
 117     }
 118
 119     function format_data_field_checkbox_content($content) {
 120         if (!is_array($content)) {
 121             $str = $content;
 122         } else {
 123             $str = '';
 124             foreach ($content as $val) {
 125                 $str .= $val . '##';
 126             }
 127             $str = substr($str, 0, -2);
 128         }
 129         $str = clean_param($str, PARAM_NOTAGS);
 130         return $str;
 131     }
 132 }
 133 ?>