/**
  *
  * @return array
  *   (memberId => imagePath...)
  */
 public function findImageFileUrlsByMemberIds($memberIds)
 {
     static $queryCacheHash;
     $q = Doctrine_Query::create();
     if (!$queryCacheHash) {
         $q->from('MemberImage mi, mi.File f');
         $q->select('mi.member_id, f.name');
         $searchResult = $q->fetchArray();
         $queryCacheHash = $q->calculateQueryCacheHash();
     } else {
         $q->setCachedQueryCacheHash($queryCacheHash);
         $searchResult = $q->fetchArray();
     }
     $imageUrls = array();
     foreach ($searchResult as $row) {
         $image = sf_image_path($row['File']['name'], array('size' => '48x48'), true);
         $imageUrls[$row['member_id']] = $image;
     }
     //画像を設定していないユーザーはno_imageにする
     foreach ($memberIds as $id) {
         if (!isset($imageUrls[$id])) {
             $imageUrls[$id] = opTimelineImage::getNotImageUrl();
         }
     }
     return $imageUrls;
 }
 private function getImageUrlInfoByImageUrl($imageUrl)
 {
     if (is_null($imageUrl)) {
         return array('large' => null, 'small' => null);
     }
     $imagePath = $this->convertImageUrlToImagePath($imageUrl);
     if (!file_exists($imagePath)) {
         return array('large' => opTimelineImage::getNotImageUrl(), 'small' => opTimelineImage::getNotImageUrl());
     }
     $minimumDirPath = opTimelineImage::findUploadDirPath($imagePath, self::MINIMUM_IMAGE_WIDTH);
     $imageName = pathinfo($imagePath, PATHINFO_BASENAME);
     $minimumImagePath = $minimumDirPath . '/' . $imageName;
     if (!file_exists($minimumImagePath)) {
         return array('large' => $imageUrl, 'small' => $imageUrl);
     }
     $minimumImageUrl = str_replace(sfConfig::get('sf_web_dir'), $this->baseUrl, $minimumImagePath);
     return array('large' => $imageUrl, 'small' => $minimumImageUrl);
 }