PHP Attachment::exists方法代码示例

 /**
  * Gets an issue list based on the given parameters.
  *
  * @param array $p_parameters
  *    An array of ComparisonOperation objects
  * @param string $p_order
  *    An array of columns and directions to order by
  * @param integer $p_count
  *    The count of answers.
  *
  * @return array $debateAnswerAttachmentsList
  *    An array of Attachment objects
  */
 public static function GetList(array $p_parameters, $p_order = null, $p_start = 0, $p_limit = 0, &$p_count)
 {
     global $g_ado_db;
     if (!is_array($p_parameters)) {
         return null;
     }
     // adodb::selectLimit() interpretes -1 as unlimited
     if ($p_limit == 0) {
         $p_limit = -1;
     }
     // sets the where conditions
     foreach ($p_parameters as $param) {
         $comparisonOperation = self::ProcessListParameters($param);
         if (empty($comparisonOperation)) {
             continue;
         }
         if (strpos($comparisonOperation['left'], 'debate_nr') !== false) {
             $debate_nr = $comparisonOperation['right'];
         }
         if (strpos($comparisonOperation['left'], 'debateanswer_nr') !== false) {
             $debateanswer_nr = $comparisonOperation['right'];
         }
     }
     $sqlClauseObj = new SQLSelectClause();
     // sets the columns to be fetched
     $tmpDebateAnswerAttachment = new DebateAnswerAttachment($language_id, $debate_nr);
     $columnNames = $tmpDebateAnswerAttachment->getColumnNames(true);
     foreach ($columnNames as $columnName) {
         $sqlClauseObj->addColumn($columnName);
     }
     // sets the main table for the query
     $mainTblName = $tmpDebateAnswerAttachment->getDbTableName();
     $sqlClauseObj->setTable($mainTblName);
     unset($tmpDebateAnswerAttachment);
     if (empty($debateanswer_nr) || empty($debate_nr)) {
         return;
     }
     $sqlClauseObj->addWhere("fk_debate_nr = " . $g_ado_db->escape($debate_nr));
     $sqlClauseObj->addWhere("fk_debateanswer_nr = " . $g_ado_db->escape($debateanswer_nr));
     if (!is_array($p_order)) {
         $p_order = array();
     }
     // sets the ORDER BY condition
     $p_order = count($p_order) > 0 ? $p_order : self::$s_defaultOrder;
     $order = self::ProcessListOrder($p_order);
     foreach ($order as $orderColumn => $orderDirection) {
         $sqlClauseObj->addOrderBy($orderColumn . ' ' . $orderDirection);
     }
     $sqlQuery = $sqlClauseObj->buildQuery();
     // count all available results
     $countRes = $g_ado_db->Execute($sqlQuery);
     $p_count = $countRes->recordCount();
     //get the wanted rows
     $debateAnswerAttachments = $g_ado_db->Execute($sqlQuery);
     // builds the array of debate objects
     $debateAnswerAttachmentsList = array();
     while ($debateAnswerAttachment = $debateAnswerAttachments->FetchRow()) {
         $debateAnswerAttachment = new Attachment($debateAnswerAttachment['fk_attachment_id']);
         if ($debateAnswerAttachment->exists()) {
             $debateAnswerAttachmentsList[] = $debateAnswerAttachment;
         }
     }
     return $debateAnswerAttachmentsList;
 }

}
// Remove any GET parameters
if (($questionMark = strpos($attachment, '?')) !== false) {
    $attachment = substr($attachment, 0, $questionMark);
}
// Remove all attempts to get at other parts of the file system
$attachment = str_replace('/../', '/', $attachment);
$filename = urldecode(basename($attachment));
$extension = '';
if (($extensionStart = strrpos($attachment, '.')) !== false) {
    $extension = strtolower(substr($attachment, $extensionStart + 1));
    $attachment = substr($attachment, 0, $extensionStart);
}
$attachmentId = (int) ltrim($attachment, " 0\t\n\r");
$attachmentObj = new Attachment($attachmentId);
if (!$attachmentObj->exists()) {
    header('HTTP/1.0 404 Not Found');
    echo 'Error 404: File not found';
    exit;
}
header('Content-Type: ' . $attachmentObj->getMimeType());
if ($g_download == 1) {
    header('Content-Disposition: ' . $attachmentObj->getContentDisposition() . '; filename="' . $attachmentObj->getFileName()) . '"';
} else {
    if ($g_show_in_browser == 1) {
        header('Content-Disposition: inline; filename="' . $attachmentObj->getFileName()) . '"';
    } else {
        if (!$attachmentObj->getContentDisposition() && strstr($attachmentObj->getMimeType(), 'image/') && (strstr($_SERVER['HTTP_ACCEPT'], $attachmentObj->getMimeType()) || strstr($_SERVER['HTTP_ACCEPT'], '*/*'))) {
            header('Content-Disposition: inline; filename="' . $attachmentObj->getFileName()) . '"';
        } else {
            header('Content-Disposition: ' . $attachmentObj->getContentDisposition() . '; filename="' . $attachmentObj->getFileName()) . '"';

 /**
  * Returns an article attachments list based on the given parameters.
  *
  * @param array $p_parameters
  *    An array of ComparisonOperation objects
  * @param string $p_order
  *    An array of columns and directions to order by
  * @param integer $p_start
  *    The record number to start the list
  * @param integer $p_limit
  *    The offset. How many records from $p_start will be retrieved.
  * @param integer $p_count
  *    The total count of the elements; this count is computed without
  *    applying the start ($p_start) and limit parameters ($p_limit)
  *
  * @return array $articleAttachmentsList
  *    An array of Attachment objects
  */
 public static function GetList(array $p_parameters, $p_order = null, $p_start = 0, $p_limit = 0, &$p_count, $p_skipCache = false)
 {
     global $g_ado_db;
     if (!$p_skipCache && CampCache::IsEnabled()) {
         $paramsArray['parameters'] = serialize($p_parameters);
         $paramsArray['order'] = is_null($p_order) ? 'null' : $p_order;
         $paramsArray['start'] = $p_start;
         $paramsArray['limit'] = $p_limit;
         $cacheListObj = new CampCacheList($paramsArray, __METHOD__);
         $articleAttachmentsList = $cacheListObj->fetchFromCache();
         if ($articleAttachmentsList !== false && is_array($articleAttachmentsList)) {
             return $articleAttachmentsList;
         }
     }
     $hasArticleNr = false;
     $selectClauseObj = new SQLSelectClause();
     $countClauseObj = new SQLSelectClause();
     // sets the where conditions
     foreach ($p_parameters as $param) {
         $comparisonOperation = self::ProcessParameters($param);
         if (sizeof($comparisonOperation) < 1) {
             break;
         }
         if (strpos($comparisonOperation['left'], 'fk_article_number')) {
             $whereCondition = $g_ado_db->escapeOperation($comparisonOperation);
             $hasArticleNr = true;
         } elseif (strpos($comparisonOperation['left'], 'fk_language_id')) {
             $whereCondition = '(' . $comparisonOperation['left'] . ' IS NULL OR ' . $comparisonOperation['left'] . " = " . $g_ado_db->escape($comparisonOperation['right']) . ")";
         } else {
             $whereCondition = $g_ado_db->escapeOperation($comparisonOperation);
         }
         $selectClauseObj->addWhere($whereCondition);
         $countClauseObj->addWhere($whereCondition);
     }
     // validates whether article number was given
     if ($hasArticleNr === false) {
         CampTemplate::singleton()->trigger_error('missed parameter Article ' . 'Number in statement list_article_attachments');
         return;
     }
     // sets the columns to be fetched
     $tmpAttachment = new Attachment();
     $columnNames = $tmpAttachment->getColumnNames(true);
     foreach ($columnNames as $columnName) {
         $selectClauseObj->addColumn($columnName);
     }
     $countClauseObj->addColumn('COUNT(*)');
     // sets the main table for the query
     $selectClauseObj->setTable($tmpAttachment->getDbTableName());
     $countClauseObj->setTable($tmpAttachment->getDbTableName());
     unset($tmpAttachment);
     // adds the ArticleAttachments join and condition to the query
     $selectClauseObj->addTableFrom('ArticleAttachments');
     $selectClauseObj->addWhere('ArticleAttachments.fk_attachment_id = Attachments.id');
     $countClauseObj->addTableFrom('ArticleAttachments');
     $countClauseObj->addWhere('ArticleAttachments.fk_attachment_id = Attachments.id');
     if (!is_array($p_order)) {
         $p_order = array();
     }
     // sets the order condition if any
     foreach ($p_order as $orderColumn => $orderDirection) {
         $selectClauseObj->addOrderBy($orderColumn . ' ' . $orderDirection);
     }
     // sets the limit
     $selectClauseObj->setLimit($p_start, $p_limit);
     // builds the query and executes it
     $selectQuery = $selectClauseObj->buildQuery();
     $attachments = $g_ado_db->GetAll($selectQuery);
     if (is_array($attachments)) {
         $countQuery = $countClauseObj->buildQuery();
         $p_count = $g_ado_db->GetOne($countQuery);
         // builds the array of attachment objects
         $articleAttachmentsList = array();
         foreach ($attachments as $attachment) {
             $attchObj = new Attachment($attachment['id']);
             if ($attchObj->exists()) {
                 $articleAttachmentsList[] = $attchObj;
             }
         }
     } else {
         $articleAttachmentsList = array();
         $p_count = 0;
     }
//.........这里部分代码省略.........