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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, $formdata = null) { 31 global $CFG, $DB, $OUTPUT, $USER, $PAGE; 32 33 $file = false; 34 $content = false; 35 $displayname = ''; 36 $alttext = ''; 37 $itemid = null; 38 $fs = get_file_storage(); 39 40 if ($formdata) { 41 $fieldname = 'field_' . $this->field->id . '_file'; 42 $itemid = clean_param($formdata->$fieldname, PARAM_INT); 43 $fieldname = 'field_' . $this->field->id . '_alttext'; 44 if (isset($formdata->$fieldname)) { 45 $alttext = $formdata->$fieldname; 46 } 47 } else if ($recordid) { 48 if ($content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) { 49 file_prepare_draft_area($itemid, $this->context->id, 'mod_data', 'content', $content->id); 50 if (!empty($content->content)) { 51 if ($file = $fs->get_file($this->context->id, 'mod_data', 'content', $content->id, '/', $content->content)) { 52 $usercontext = context_user::instance($USER->id); 53 if (!$files = $fs->get_area_files($usercontext->id, 'user', 'draft', $itemid, 'id DESC', false)) { 54 return false; 55 } 56 if ($thumbfile = $fs->get_file($usercontext->id, 'user', 'draft', $itemid, '/', 'thumb_'.$content->content)) { 57 $thumbfile->delete(); 58 } 59 if (empty($content->content1)) { 60 // Print icon if file already exists 61 $src = moodle_url::make_draftfile_url($itemid, '/', $file->get_filename()); 62 $displayname = $OUTPUT->pix_icon(file_file_icon($file), get_mimetype_description($file), 'moodle', array('class' => 'icon')). '<a href="'.$src.'" >'.s($file->get_filename()).'</a>'; 63 64 } else { 65 $displayname = get_string('nofilesattached', 'repository'); 66 } 67 } 68 } 69 $alttext = $content->content1; 70 } 71 } else { 72 $itemid = file_get_unused_draft_itemid(); 73 } 74 $str = '<div title="' . s($this->field->description) . '">'; 75 $str .= '<fieldset><legend><span class="accesshide">'.$this->field->name; 76 77 if ($this->field->required) { 78 $str .= ' ' . get_string('requiredelement', 'form') . '</span></legend>'; 79 $image = html_writer::img($OUTPUT->pix_url('req'), get_string('requiredelement', 'form'), 80 array('class' => 'req', 'title' => get_string('requiredelement', 'form'))); 81 $str .= html_writer::div($image, 'inline-req'); 82 } else { 83 $str .= '</span></legend>'; 84 } 85 $str .= '<noscript>'; 86 if ($file) { 87 $src = file_encode_url($CFG->wwwroot.'/pluginfile.php/', $this->context->id.'/mod_data/content/'.$content->id.'/'.$file->get_filename()); 88 $str .= '<img width="'.s($this->previewwidth).'" height="'.s($this->previewheight).'" src="'.$src.'" alt="" />'; 89 } 90 $str .= '</noscript>'; 91 92 $options = new stdClass(); 93 $options->maxbytes = $this->field->param3; 94 $options->maxfiles = 1; // Only one picture permitted. 95 $options->itemid = $itemid; 96 $options->accepted_types = array('web_image'); 97 $options->return_types = FILE_INTERNAL; 98 $options->context = $PAGE->context; 99 if (!empty($file)) { 100 $options->filename = $file->get_filename(); 101 $options->filepath = '/'; 102 } 103 104 $fm = new form_filemanager($options); 105 // Print out file manager. 106 107 $output = $PAGE->get_renderer('core', 'files'); 108 $str .= '<div class="mod-data-input">'; 109 $str .= $output->render($fm); 110 111 $str .= '<div class="mdl-left">'; 112 $str .= '<input type="hidden" name="field_'.$this->field->id.'_file" value="'.s($itemid).'" />'; 113 $str .= '<label for="field_'.$this->field->id.'_alttext">'.get_string('alttext','data') .'</label> <input type="text" name="field_' 114 .$this->field->id.'_alttext" id="field_'.$this->field->id.'_alttext" value="'.s($alttext).'" />'; 115 $str .= '</div>'; 116 $str .= '</div>'; 117 118 $str .= '</fieldset>'; 119 $str .= '</div>'; 120 121 return $str; 122 } 123 124 // TODO delete this function and instead subclass data_field_file - see MDL-16493 125 126 function get_file($recordid, $content=null) { 127 global $DB; 128 if (empty($content)) { 129 if (!$content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) { 130 return null; 131 } 132 } 133 $fs = get_file_storage(); 134 if (!$file = $fs->get_file($this->context->id, 'mod_data', 'content', $content->id, '/', $content->content)) { 135 return null; 136 } 137 138 return $file; 139 } 140 141 function display_search_field($value = '') { 142 return '<label class="accesshide" for="f_'.$this->field->id.'">' . get_string('fieldname', 'data') . '</label>' . 143 '<input type="text" size="16" id="f_'.$this->field->id.'" name="f_'.$this->field->id.'" value="'.s($value).'" />'; 144 } 145 146 function parse_search_field() { 147 return optional_param('f_'.$this->field->id, '', PARAM_NOTAGS); 148 } 149 150 function generate_sql($tablealias, $value) { 151 global $DB; 152 153 static $i=0; 154 $i++; 155 $name = "df_picture_$i"; 156 return array(" ({$tablealias}.fieldid = {$this->field->id} AND ".$DB->sql_like("{$tablealias}.content", ":$name", false).") ", array($name=>"%$value%")); 157 } 158 159 function display_browse_field($recordid, $template) { 160 global $CFG, $DB; 161 162 if (!$content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) { 163 return false; 164 } 165 166 if (empty($content->content)) { 167 return ''; 168 } 169 170 $alt = $content->content1; 171 $title = $alt; 172 173 if ($template == 'listtemplate') { 174 $src = file_encode_url($CFG->wwwroot.'/pluginfile.php', '/'.$this->context->id.'/mod_data/content/'.$content->id.'/'.'thumb_'.$content->content); 175 // no need to add width/height, because the thumb is resized properly 176 $str = '<a href="view.php?d='.$this->field->dataid.'&rid='.$recordid.'"><img src="'.$src.'" alt="'.s($alt).'" title="'.s($title).'" class="list_picture"/></a>'; 177 178 } else { 179 $src = file_encode_url($CFG->wwwroot.'/pluginfile.php', '/'.$this->context->id.'/mod_data/content/'.$content->id.'/'.$content->content); 180 $width = $this->field->param1 ? ' width="'.s($this->field->param1).'" ':' '; 181 $height = $this->field->param2 ? ' height="'.s($this->field->param2).'" ':' '; 182 $str = '<a href="'.$src.'"><img '.$width.$height.' src="'.$src.'" alt="'.s($alt).'" title="'.s($title).'" class="list_picture"/></a>'; 183 } 184 185 return $str; 186 } 187 188 function update_field() { 189 global $DB, $OUTPUT; 190 191 // Get the old field data so that we can check whether the thumbnail dimensions have changed 192 $oldfield = $DB->get_record('data_fields', array('id'=>$this->field->id)); 193 $DB->update_record('data_fields', $this->field); 194 195 // Have the thumbnail dimensions changed? 196 if ($oldfield && ($oldfield->param4 != $this->field->param4 || $oldfield->param5 != $this->field->param5)) { 197 // Check through all existing records and update the thumbnail 198 if ($contents = $DB->get_records('data_content', array('fieldid'=>$this->field->id))) { 199 $fs = get_file_storage(); 200 if (count($contents) > 20) { 201 echo $OUTPUT->notification(get_string('resizingimages', 'data'), 'notifysuccess'); 202 echo "\n\n"; 203 // To make sure that ob_flush() has the desired effect 204 ob_flush(); 205 } 206 foreach ($contents as $content) { 207 if (!$file = $fs->get_file($this->context->id, 'mod_data', 'content', $content->id, '/', $content->content)) { 208 continue; 209 } 210 if ($thumbfile = $fs->get_file($this->context->id, 'mod_data', 'content', $content->id, '/', 'thumb_'.$content->content)) { 211 $thumbfile->delete(); 212 } 213 core_php_time_limit::raise(300); 214 // Might be slow! 215 $this->update_thumbnail($content, $file); 216 } 217 } 218 } 219 return true; 220 } 221 222 function update_content($recordid, $value, $name='') { 223 global $CFG, $DB, $USER; 224 225 if (!$content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) { 226 // Quickly make one now! 227 $content = new stdClass(); 228 $content->fieldid = $this->field->id; 229 $content->recordid = $recordid; 230 $id = $DB->insert_record('data_content', $content); 231 $content = $DB->get_record('data_content', array('id'=>$id)); 232 } 233 234 $names = explode('_', $name); 235 switch ($names[2]) { 236 case 'file': 237 $fs = get_file_storage(); 238 file_save_draft_area_files($value, $this->context->id, 'mod_data', 'content', $content->id); 239 $usercontext = context_user::instance($USER->id); 240 $files = $fs->get_area_files( 241 $this->context->id, 242 'mod_data', 'content', 243 $content->id, 244 'itemid, filepath, filename', 245 false); 246 247 // We expect no or just one file (maxfiles = 1 option is set for the form_filemanager). 248 if (count($files) == 0) { 249 $content->content = null; 250 } else { 251 $file = array_values($files)[0]; 252 253 if (count($files) > 1) { 254 // This should not happen with a consistent database. Inform admins/developers about the inconsistency. 255 debugging('more then one file found in mod_data instance {$this->data->id} picture field (field id: {$this->field->id}) area during update data record {$recordid} (content id: {$content->id})', DEBUG_NORMAL); 256 } 257 258 if ($file->get_imageinfo() === false) { 259 $url = new moodle_url('/mod/data/edit.php', array('d' => $this->field->dataid)); 260 redirect($url, get_string('invalidfiletype', 'error', $file->get_filename())); 261 } 262 $content->content = $file->get_filename(); 263 $this->update_thumbnail($content, $file); 264 } 265 $DB->update_record('data_content', $content); 266 267 break; 268 269 case 'alttext': 270 // only changing alt tag 271 $content->content1 = clean_param($value, PARAM_NOTAGS); 272 $DB->update_record('data_content', $content); 273 break; 274 275 default: 276 break; 277 } 278 } 279 280 function update_thumbnail($content, $file) { 281 // (Re)generate thumbnail image according to the dimensions specified in the field settings. 282 // If thumbnail width and height are BOTH not specified then no thumbnail is generated, and 283 // additionally an attempted delete of the existing thumbnail takes place. 284 $fs = get_file_storage(); 285 $file_record = array('contextid'=>$file->get_contextid(), 'component'=>$file->get_component(), 'filearea'=>$file->get_filearea(), 286 'itemid'=>$file->get_itemid(), 'filepath'=>$file->get_filepath(), 287 'filename'=>'thumb_'.$file->get_filename(), 'userid'=>$file->get_userid()); 288 try { 289 // this may fail for various reasons 290 $fs->convert_image($file_record, $file, $this->field->param4, $this->field->param5, true); 291 return true; 292 } catch (Exception $e) { 293 debugging($e->getMessage()); 294 return false; 295 } 296 } 297 298 function text_export_supported() { 299 return false; 300 } 301 302 function file_ok($path) { 303 return true; 304 } 305 306 /** 307 * Custom notempty function 308 * 309 * @param string $value 310 * @param string $name 311 * @return bool 312 */ 313 function notemptyfield($value, $name) { 314 global $USER; 315 316 $names = explode('_', $name); 317 if ($names[2] == 'file') { 318 $usercontext = context_user::instance($USER->id); 319 $fs = get_file_storage(); 320 $files = $fs->get_area_files($usercontext->id, 'user', 'draft', $value); 321 return count($files) >= 2; 322 } 323 return false; 324 } 325 }
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| Generated: Thu Aug 11 10:00:09 2016 | Cross-referenced by PHPXref 0.7.1 |