PHP Files::clear方法代码示例

            if (!fwrite($output_handle, $buffer)) {
                Safe::header('500 Internal Server Error');
                Logger::error('Impossible to write to local file');
                break;
            }
        }
        fclose($output_handle);
        // also update the database
        $item['file_size'] = $new_size;
        $item['edit_name'] = $user['nick_name'];
        $item['edit_id'] = $user['id'];
        $item['edit_address'] = $user['email'];
        if (!($item['id'] = Files::post($item, 'A'))) {
            Safe::header('500 Internal Server Error');
        } else {
            Files::clear($item);
            Safe::header('200 OK');
        }
    }
    // clear assignment information, if any
} elseif ($action == 'release' && ($anchor->is_assigned() || isset($item['assign_id']) && Surfer::is($item['assign_id']))) {
    // change page title
    $context['page_title'] = sprintf(i18n::s('%s: %s'), i18n::s('Release reservation'), $context['page_title']);
    // clear assignment information
    if (Files::assign($item['id'], NULL)) {
        // inform surfer
        $context['text'] .= '<p>' . i18n::s('You have released this file, and other surfers can reserve it for revision.') . '</p>';
        // help the surfer
    } else {
        Logger::error(i18n::s('Operation has failed.'));
    }

 /**
  * transcode some references
  *
  * @param array of pairs of strings to be used in preg_replace()
  *
  * @see images/images.php
  */
 function transcode($transcoded)
 {
     global $context;
     // no item bound
     if (!isset($this->item['id'])) {
         return;
     }
     // prepare preg_replace()
     $from = array();
     $to = array();
     foreach ($transcoded as $pair) {
         $from[] = $pair[0];
         $to[] = $pair[1];
     }
     // transcode various fields
     $this->item['description'] = preg_replace($from, $to, $this->item['description']);
     // update the database
     $query = "UPDATE " . SQL::table_name('files') . " SET " . " description = '" . SQL::escape($this->item['description']) . "'" . " WHERE id = " . SQL::escape($this->item['id']);
     SQL::query($query);
     // always clear the cache, even on no update
     Files::clear($this->item);
 }

        // follow-up commands -- do not use #_attachments, because of thread layout, etc.
        $menu = array();
        if (is_object($anchor)) {
            $menu = array_merge($menu, array($anchor->get_url('files') => i18n::s('Back to main page')));
        }
        if (is_object($anchor) && Surfer::may_upload()) {
            $menu = array_merge($menu, array('files/edit.php?anchor=' . $anchor->get_reference() => i18n::s('Upload another file')));
        }
        $follow_up .= Skin::build_list($menu, 'menu_bar');
        $context['text'] .= Skin::build_block($follow_up, 'bottom');
        // forward to the updated page
    } else {
        // touch the related anchor
        $anchor->touch('file:update', $_REQUEST['id'], isset($_REQUEST['silent']) && $_REQUEST['silent'] == 'Y');
        // clear cache
        Files::clear($_REQUEST);
        // increment the post counter of the surfer
        Users::increment_posts(Surfer::get_id());
        // record surfer activity
        Activities::post('file:' . $_REQUEST['id'], 'upload');
        if ($render_overlaid) {
            echo 'post done';
            die;
        }
        // forward to the anchor page
        Safe::redirect($anchor->get_url('files'));
    }
    // display the form on GET
} else {
    $with_form = TRUE;
}

 /**
  * change only some attributes
  *
  * @param array an array of fields
  * @return TRUE on success, or FALSE on error
  **/
 public static function put_attributes(&$fields)
 {
     global $context;
     // id cannot be empty
     if (!isset($fields['id']) || !is_numeric($fields['id'])) {
         Logger::error(i18n::s('No item has the provided id.'));
         return FALSE;
     }
     // set default values for this editor
     Surfer::check_default_editor($fields);
     // quey components
     $query = array();
     // change access rights
     if (isset($fields['active_set'])) {
         // anchor cannot be empty
         if (!isset($fields['anchor']) || !$fields['anchor'] || !($anchor = Anchors::get($fields['anchor']))) {
             Logger::error(i18n::s('No anchor has been found.'));
             return FALSE;
         }
         // determine the actual right
         $fields['active'] = $anchor->ceil_rights($fields['active_set']);
         // remember these in this record
         $query[] = "active='" . SQL::escape($fields['active']) . "'";
         $query[] = "active_set='" . SQL::escape($fields['active_set']) . "'";
         // cascade anchor access rights
         Anchors::cascade('file:' . $fields['id'], $fields['active']);
     }
     // anchor this page to another place
     if (isset($fields['anchor'])) {
         $query[] = "anchor='" . SQL::escape($fields['anchor']) . "'";
         $query[] = "anchor_type=SUBSTRING_INDEX('" . SQL::escape($fields['anchor']) . "', ':', 1)";
         $query[] = "anchor_id=SUBSTRING_INDEX('" . SQL::escape($fields['anchor']) . "', ':', -1)";
     }
     // other fields that can be modified individually
     if (isset($fields['behaviors'])) {
         $query[] = "behaviors='" . SQL::escape($fields['behaviors']) . "'";
     }
     if (isset($fields['description'])) {
         $query[] = "description='" . SQL::escape($fields['description']) . "'";
     }
     if (isset($fields['icon_url'])) {
         $query[] = "icon_url='" . SQL::escape(preg_replace('/[^\\w\\/\\.,:%&\\?=-]+/', '_', $fields['icon_url'])) . "'";
     }
     if (isset($fields['overlay'])) {
         $query[] = "overlay='" . SQL::escape($fields['overlay']) . "'";
     }
     if (isset($fields['overlay_id'])) {
         $query[] = "overlay_id='" . SQL::escape($fields['overlay_id']) . "'";
     }
     if (isset($fields['rank'])) {
         $query[] = "rank='" . SQL::escape($fields['rank']) . "'";
     }
     if (isset($fields['source'])) {
         $query[] = "source='" . SQL::escape($fields['source']) . "'";
     }
     if (isset($fields['thumbnail_url'])) {
         $query[] = "thumbnail_url='" . SQL::escape(preg_replace('/[^\\w\\/\\.,:%&\\?=-]+/', '_', $fields['thumbnail_url'])) . "'";
     }
     if (isset($fields['keywords'])) {
         $query[] = "keywords='" . SQL::escape($fields['keywords']) . "'";
     }
     if (isset($fields['title'])) {
         $fields['title'] = strip_tags($fields['title'], '<br>');
         $query[] = "title='" . SQL::escape($fields['title']) . "'";
     }
     // nothing to update
     if (!count($query)) {
         return TRUE;
     }
     // maybe a silent update
     if (!isset($fields['silent']) || $fields['silent'] != 'Y') {
         $query[] = "edit_name='" . SQL::escape($fields['edit_name']) . "'";
         $query[] = "edit_id=" . SQL::escape($fields['edit_id']);
         $query[] = "edit_address='" . SQL::escape($fields['edit_address']) . "'";
         $query[] = "edit_action='article:update'";
         $query[] = "edit_date='" . SQL::escape($fields['edit_date']) . "'";
     }
     // actual update query
     $query = "UPDATE " . SQL::table_name('files') . " SET " . implode(', ', $query) . " WHERE id = " . SQL::escape($fields['id']);
     if (!SQL::query($query)) {
         return FALSE;
     }
     // clear the cache
     Files::clear($fields);
     // end of job
     return TRUE;
 }