| [ Index ] |
PHP Cross Reference of moodle-2.8 |
[Summary view] [Print] [Text view]
1 <?php 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_picture extends data_field_base { 26 var $type = 'picture'; 27 var $previewwidth = 50; 28 var $previewheight = 50; 29 30 function display_add_field($recordid=0) { 31 global $CFG, $DB, $OUTPUT, $USER, $PAGE; 32 33 $file = false; 34 $content = false; 35 $displayname = ''; 36 $alttext = ''; 37 $itemid = null; 38 $fs = get_file_storage(); 39 40 if ($recordid) { 41 if ($content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) { 42 file_prepare_draft_area($itemid, $this->context->id, 'mod_data', 'content', $content->id); 43 if (!empty($content->content)) { 44 if ($file = $fs->get_file($this->context->id, 'mod_data', 'content', $content->id, '/', $content->content)) { 45 $usercontext = context_user::instance($USER->id); 46 if (!$files = $fs->get_area_files($usercontext->id, 'user', 'draft', $itemid, 'id DESC', false)) { 47 return false; 48 } 49 if ($thumbfile = $fs->get_file($usercontext->id, 'user', 'draft', $itemid, '/', 'thumb_'.$content->content)) { 50 $thumbfile->delete(); 51 } 52 if (empty($content->content1)) { 53 // Print icon if file already exists 54 $src = moodle_url::make_draftfile_url($itemid, '/', $file->get_filename()); 55 $displayname = $OUTPUT->pix_icon(file_file_icon($file), get_mimetype_description($file), 'moodle', array('class' => 'icon')). '<a href="'.$src.'" >'.s($file->get_filename()).'</a>'; 56 57 } else { 58 $displayname = get_string('nofilesattached', 'repository'); 59 } 60 } 61 } 62 $alttext = $content->content1; 63 } 64 } else { 65 $itemid = file_get_unused_draft_itemid(); 66 } 67 68 $str = '<div title="'.s($this->field->description).'">'; 69 $str .= '<fieldset><legend><span class="accesshide">'.$this->field->name.'</span></legend>'; 70 $str .= '<noscript>'; 71 if ($file) { 72 $src = file_encode_url($CFG->wwwroot.'/pluginfile.php/', $this->context->id.'/mod_data/content/'.$content->id.'/'.$file->get_filename()); 73 $str .= '<img width="'.s($this->previewwidth).'" height="'.s($this->previewheight).'" src="'.$src.'" alt="" />'; 74 } 75 $str .= '</noscript>'; 76 77 $options = new stdClass(); 78 $options->maxbytes = $this->field->param3; 79 $options->maxfiles = 1; // Only one picture permitted. 80 $options->itemid = $itemid; 81 $options->accepted_types = array('web_image'); 82 $options->return_types = FILE_INTERNAL; 83 $options->context = $PAGE->context; 84 if (!empty($file)) { 85 $options->filename = $file->get_filename(); 86 $options->filepath = '/'; 87 } 88 89 $fm = new form_filemanager($options); 90 // Print out file manager. 91 92 $output = $PAGE->get_renderer('core', 'files'); 93 $str .= $output->render($fm); 94 95 $str .= '<div class="mdl-left">'; 96 $str .= '<input type="hidden" name="field_'.$this->field->id.'_file" value="'.$itemid.'" />'; 97 $str .= '<label for="field_'.$this->field->id.'_alttext">'.get_string('alttext','data') .'</label> <input type="text" name="field_' 98 .$this->field->id.'_alttext" id="field_'.$this->field->id.'_alttext" value="'.s($alttext).'" />'; 99 $str .= '</div>'; 100 101 $str .= '</fieldset>'; 102 $str .= '</div>'; 103 104 return $str; 105 } 106 107 // TODO delete this function and instead subclass data_field_file - see MDL-16493 108 109 function get_file($recordid, $content=null) { 110 global $DB; 111 if (empty($content)) { 112 if (!$content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) { 113 return null; 114 } 115 } 116 $fs = get_file_storage(); 117 if (!$file = $fs->get_file($this->context->id, 'mod_data', 'content', $content->id, '/', $content->content)) { 118 return null; 119 } 120 121 return $file; 122 } 123 124 function display_search_field($value = '') { 125 return '<label class="accesshide" for="f_'.$this->field->id.'">' . get_string('fieldname', 'data') . '</label>' . 126 '<input type="text" size="16" id="f_'.$this->field->id.'" name="f_'.$this->field->id.'" value="'.$value.'" />'; 127 } 128 129 function parse_search_field() { 130 return optional_param('f_'.$this->field->id, '', PARAM_NOTAGS); 131 } 132 133 function generate_sql($tablealias, $value) { 134 global $DB; 135 136 static $i=0; 137 $i++; 138 $name = "df_picture_$i"; 139 return array(" ({$tablealias}.fieldid = {$this->field->id} AND ".$DB->sql_like("{$tablealias}.content", ":$name", false).") ", array($name=>"%$value%")); 140 } 141 142 function display_browse_field($recordid, $template) { 143 global $CFG, $DB; 144 145 if (!$content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) { 146 return false; 147 } 148 149 if (empty($content->content)) { 150 return ''; 151 } 152 153 $alt = $content->content1; 154 $title = $alt; 155 156 if ($template == 'listtemplate') { 157 $src = file_encode_url($CFG->wwwroot.'/pluginfile.php', '/'.$this->context->id.'/mod_data/content/'.$content->id.'/'.'thumb_'.$content->content); 158 // no need to add width/height, because the thumb is resized properly 159 $str = '<a href="view.php?d='.$this->field->dataid.'&rid='.$recordid.'"><img src="'.$src.'" alt="'.s($alt).'" title="'.s($title).'" class="list_picture"/></a>'; 160 161 } else { 162 $src = file_encode_url($CFG->wwwroot.'/pluginfile.php', '/'.$this->context->id.'/mod_data/content/'.$content->id.'/'.$content->content); 163 $width = $this->field->param1 ? ' width="'.s($this->field->param1).'" ':' '; 164 $height = $this->field->param2 ? ' height="'.s($this->field->param2).'" ':' '; 165 $str = '<a href="'.$src.'"><img '.$width.$height.' src="'.$src.'" alt="'.s($alt).'" title="'.s($title).'" class="list_picture"/></a>'; 166 } 167 168 return $str; 169 } 170 171 function update_field() { 172 global $DB, $OUTPUT; 173 174 // Get the old field data so that we can check whether the thumbnail dimensions have changed 175 $oldfield = $DB->get_record('data_fields', array('id'=>$this->field->id)); 176 $DB->update_record('data_fields', $this->field); 177 178 // Have the thumbnail dimensions changed? 179 if ($oldfield && ($oldfield->param4 != $this->field->param4 || $oldfield->param5 != $this->field->param5)) { 180 // Check through all existing records and update the thumbnail 181 if ($contents = $DB->get_records('data_content', array('fieldid'=>$this->field->id))) { 182 $fs = get_file_storage(); 183 if (count($contents) > 20) { 184 echo $OUTPUT->notification(get_string('resizingimages', 'data'), 'notifysuccess'); 185 echo "\n\n"; 186 // To make sure that ob_flush() has the desired effect 187 ob_flush(); 188 } 189 foreach ($contents as $content) { 190 if (!$file = $fs->get_file($this->context->id, 'mod_data', 'content', $content->id, '/', $content->content)) { 191 continue; 192 } 193 if ($thumbfile = $fs->get_file($this->context->id, 'mod_data', 'content', $content->id, '/', 'thumb_'.$content->content)) { 194 $thumbfile->delete(); 195 } 196 core_php_time_limit::raise(300); 197 // Might be slow! 198 $this->update_thumbnail($content, $file); 199 } 200 } 201 } 202 return true; 203 } 204 205 function update_content($recordid, $value, $name='') { 206 global $CFG, $DB, $USER; 207 208 if (!$content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) { 209 // Quickly make one now! 210 $content = new stdClass(); 211 $content->fieldid = $this->field->id; 212 $content->recordid = $recordid; 213 $id = $DB->insert_record('data_content', $content); 214 $content = $DB->get_record('data_content', array('id'=>$id)); 215 } 216 217 $names = explode('_', $name); 218 switch ($names[2]) { 219 case 'file': 220 $fs = get_file_storage(); 221 $fs->delete_area_files($this->context->id, 'mod_data', 'content', $content->id); 222 $usercontext = context_user::instance($USER->id); 223 $files = $fs->get_area_files($usercontext->id, 'user', 'draft', $value); 224 if (count($files)<2) { 225 // no file 226 } else { 227 $count = 0; 228 foreach ($files as $draftfile) { 229 $file_record = array('contextid'=>$this->context->id, 'component'=>'mod_data', 'filearea'=>'content', 'itemid'=>$content->id, 'filepath'=>'/'); 230 if (!$draftfile->is_directory()) { 231 $file_record['filename'] = $draftfile->get_filename(); 232 233 $content->content = $draftfile->get_filename(); 234 235 $file = $fs->create_file_from_storedfile($file_record, $draftfile); 236 237 // If the file is not a valid image, redirect back to the upload form. 238 if ($file->get_imageinfo() === false) { 239 $url = new moodle_url('/mod/data/edit.php', array('d' => $this->field->dataid)); 240 redirect($url, get_string('invalidfiletype', 'error', $file->get_filename())); 241 } 242 243 $DB->update_record('data_content', $content); 244 $this->update_thumbnail($content, $file); 245 246 if ($count > 0) { 247 break; 248 } else { 249 $count++; 250 } 251 } 252 } 253 } 254 255 break; 256 257 case 'alttext': 258 // only changing alt tag 259 $content->content1 = clean_param($value, PARAM_NOTAGS); 260 $DB->update_record('data_content', $content); 261 break; 262 263 default: 264 break; 265 } 266 } 267 268 function update_thumbnail($content, $file) { 269 // (Re)generate thumbnail image according to the dimensions specified in the field settings. 270 // If thumbnail width and height are BOTH not specified then no thumbnail is generated, and 271 // additionally an attempted delete of the existing thumbnail takes place. 272 $fs = get_file_storage(); 273 $file_record = array('contextid'=>$file->get_contextid(), 'component'=>$file->get_component(), 'filearea'=>$file->get_filearea(), 274 'itemid'=>$file->get_itemid(), 'filepath'=>$file->get_filepath(), 275 'filename'=>'thumb_'.$file->get_filename(), 'userid'=>$file->get_userid()); 276 try { 277 // this may fail for various reasons 278 $fs->convert_image($file_record, $file, $this->field->param4, $this->field->param5, true); 279 return true; 280 } catch (Exception $e) { 281 debugging($e->getMessage()); 282 return false; 283 } 284 } 285 286 function text_export_supported() { 287 return false; 288 } 289 290 function file_ok($path) { 291 return true; 292 } 293 } 294 295
title
Description
Body
title
Description
Body
title
Description
Body
title
Body
| Generated: Fri Nov 28 20:29:05 2014 | Cross-referenced by PHPXref 0.7.1 |