mod/data/field/file/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_file extends data_field_base {
  26     var $type = 'file';
  27
  28     function data_field_file($field=0, $data=0) {
  29         parent::data_field_base($field, $data);
  30     }
  31
  32     function display_add_field($recordid=0) {
  33         global $CFG;
  34         if ($recordid){
  35             if ($content = get_record('data_content', 'fieldid', $this->field->id, 'recordid', $recordid)) {
  36                 $contents[0] = $content->content;
  37                 $contents[1] = $content->content1;
  38             } else {
  39                 $contents[0] = '';
  40                 $contents[1] = '';
  41             }
  42             $src         = empty($contents[0]) ? '' : $contents[0];
  43             $name        = empty($contents[1]) ? $src : $contents[1];
  44             $displayname = empty($contents[1]) ? '' : $contents[1];
  45             require_once($CFG->libdir.'/filelib.php');
  46             $source = get_file_url($this->data->course.'/'.$CFG->moddata.'/data/'.$this->data->id.'/'.$this->field->id.'/'.$recordid);
  47         } else {
  48             $src = '';
  49             $name = '';
  50             $displayname = '';
  51             $source = '';
  52         }
  53         $str = '<div title="' . s($this->field->description) . '">';
  54         $str .= '<fieldset><legend><span class="accesshide">'.$this->field->name.'</span></legend>';
  55         $str .= '<input type="hidden" name ="field_'.$this->field->id.'_file" value="fakevalue" />';
  56         $str .= get_string('file','data'). ' <input type="file" name ="field_'.$this->field->id.'" id="field_'.
  57                             $this->field->id.'" title="'.s($this->field->description).'" /><br />';
  58         $str .= get_string('optionalfilename','data').' <input type="text" name="field_' .$this->field->id.'_filename"
  59                             id="field_'.$this->field->id.'_filename" value="'.s($displayname).'" /><br />';
  60         $str .= '<input type="hidden" name="MAX_FILE_SIZE" value="'.s($this->field->param3).'" />';
  61         $str .= '</fieldset>';
  62         $str .= '</div>';
  63         if ($recordid and isset($content) and !empty($content->content)) {
  64             // Print icon
  65             require_once($CFG->libdir.'/filelib.php');
  66             $icon = mimeinfo('icon', $src);
  67             $str .= '<img src="'.$CFG->pixpath.'/f/'.$icon.'" class="icon" alt="'.$icon.'" />'.
  68                     '<a href="'.$source.'/'.$src.'" >'.$name.'</a>';
  69         }
  70         return $str;
  71     }
  72
  73     function display_search_field($value = '') {
  74         return '<input type="text" size="16" name="f_'.$this->field->id.'" value="'.$value.'" />';
  75     }
  76
  77     function generate_sql($tablealias, $value) {
  78         return " ({$tablealias}.fieldid = {$this->field->id} AND {$tablealias}.content LIKE '%{$value}%') ";
  79     }
  80
  81     function parse_search_field() {
  82         return optional_param('f_'.$this->field->id, '', PARAM_NOTAGS);
  83     }
  84
  85     function display_browse_field($recordid, $template) {
  86         global $CFG;
  87         if (!$content = get_record('data_content', 'fieldid', $this->field->id, 'recordid', $recordid)) {
  88             return false;
  89         }
  90         $width = $this->field->param1 ? ' width = "'.s($this->field->param1).'" ':' ';
  91         $height = $this->field->param2 ? ' height = "'.s($this->field->param2).'" ':' ';
  92         if (empty($content->content)) {
  93             return '';
  94         }
  95         require_once($CFG->libdir.'/filelib.php');
  96         $src  = $content->content;
  97         $name = empty($content->content1) ? $src : $content->content1;
  98         $source = get_file_url($this->data->course.'/'.$CFG->moddata.'/data/'.$this->data->id.'/'.$this->field->id.'/'.$recordid);
  99         $icon = mimeinfo('icon', $src);
 100         $str = '<img src="'.$CFG->pixpath.'/f/'.$icon.'" height="16" width="16" alt="'.$icon.'" />&nbsp;'.
 101                         '<a href="'.$source.'/'.$src.'" >'.$name.'</a>';
 102         return $str;
 103     }
 104
 105
 106     // content: "a##b" where a is the file name, b is the display name
 107     function update_content($recordid, $value, $name) {
 108         global $CFG;
 109         if (!$oldcontent = get_record('data_content','fieldid', $this->field->id, 'recordid', $recordid)) {
 110         // Quickly make one now!
 111             $oldcontent = new object;
 112             $oldcontent->fieldid = $this->field->id;
 113             $oldcontent->recordid = $recordid;
 114             if ($oldcontent->id = insert_record('data_content', $oldcontent)) {
 115                 error('Could not make an empty record!');
 116             }
 117         }
 118         $content = new object;
 119         $content->id = $oldcontent->id;
 120         $names = explode('_',$name);
 121         switch ($names[2]) {
 122             case 'file':
 123                 // file just uploaded
 124 #                $course = get_course('course', 'id', $this->data->course);
 125                 $filename = $_FILES[$names[0].'_'.$names[1]];
 126                 $filename = $filename['name'];
 127                 $dir = $this->data->course.'/'.$CFG->moddata.'/data/'.$this->data->id.'/'.$this->field->id.'/'.$recordid;
 128                 // only use the manager if file is present, to avoid "are you sure you selected a file to upload" msg
 129                 if ($filename){
 130                     require_once($CFG->libdir.'/uploadlib.php');
 131                     // FIX ME: $course not defined here
 132                     $um = new upload_manager($names[0].'_'.$names[1],true,false,$this->data->course,false,$this->field->param3);
 133                     if ($um->process_file_uploads($dir)) {
 134                         $newfile_name = $um->get_new_filename();
 135                         $content->content = $newfile_name;
 136                         update_record('data_content',$content);
 137                     }
 138                 }
 139                 break;
 140
 141             case 'filename':
 142                 // only changing alt tag
 143                 $content->content1 = clean_param($value, PARAM_NOTAGS);
 144                 update_record('data_content', $content);
 145                 break;
 146
 147             default:
 148                 break;
 149         }
 150     }
 151
 152     function notemptyfield($value, $name) {
 153         $names = explode('_',$name);
 154         if ($names[2] == 'file') {
 155             $filename = $_FILES[$names[0].'_'.$names[1]];
 156             return !empty($filename['name']);
 157             // if there's a file in $_FILES, not empty
 158         }
 159         return false;
 160     }
 161
 162     function text_export_supported() {
 163         return false;
 164     }
 165
 166 }
 167
 168 ?>