/**
* Helper to return image of the current image.
*
* @param string $type Derivative type of the image.
* @return void
*/
protected function _sendImage($type = null)
{
$request = $this->getRequest();
$itemId = $request->getParam('id');
$item = get_record_by_id('item', $itemId);
if (empty($item)) {
throw new Omeka_Controller_Exception_404();
}
$index = $request->getParam('image');
// Get the index.
if ($index != '000') {
$index = preg_replace('`^[0]*`', '', $index);
$index--;
} else {
$index = 0;
}
$bookreader = new BookReader($item);
$part = $request->getParam('part');
$bookreader->setPart($part);
if (is_null($type)) {
$scale = $request->getParam('scale');
$type = $bookreader->getSizeType($scale);
// Set a default, even it's normally useless.
$type = $type ?: 'fullsize';
}
$imagesFiles = $bookreader->getLeaves();
$file = $imagesFiles[$index];
// No file, so a blank image
if (empty($file)) {
$filepath = 'images/blank.png';
$image = file_get_contents(physical_path_to($filepath));
$this->getResponse()->clearBody();
$this->getResponse()->setHeader('Content-Type', 'image/jpeg');
$this->getResponse()->setBody($image);
} else {
$this->_helper->redirector->gotoUrlAndExit($file->getWebPath($type));
}
}
/**
* Sort all files of an item by name.
*
* @param Item $item
* @param boolean $mixFileTypes
*
* @return void
*/
protected function _sortFiles($item, $mixFileTypes = false)
{
if ($item->fileCount() < 2) {
return;
}
if ($mixFileTypes) {
$list = $item->Files;
BookReader_Creator::sortFilesByOriginalName($list, false);
} else {
$bookreader = new BookReader($item);
// Get leaves and remove blank ones.
$leaves = array_filter($bookreader->getLeaves());
$non_leaves = array_filter($bookreader->getNonLeaves());
// Manage the case where there is no BookReader data.
if (empty($leaves) && empty($non_leaves)) {
$list = $item->Files;
BookReader_Creator::sortFilesByOriginalName($list, false);
} else {
// Order them separately.
BookReader_Creator::sortFilesByOriginalName($leaves, false);
BookReader_Creator::sortFilesByOriginalName($non_leaves, false);
// Finally, merge them.
$list = array_merge($leaves, $non_leaves);
}
}
// To avoid issues with unique index when updating (order should be
// unique for each file of an item), all orders are reset to null before
// true process.
$db = $this->_db;
$bind = array($item->id);
$sql = "\n UPDATE `{$db->File}` files\n SET files.order = NULL\n WHERE files.item_id = ?\n ";
$db->query($sql, $bind);
// To avoid multiple updates, a single query is used.
foreach ($list as &$file) {
$file = $file->id;
}
// The array is made unique, because a leaf can be repeated.
$list = implode(',', array_unique($list));
$sql = "\n UPDATE `{$db->File}` files\n SET files.order = FIND_IN_SET(files.id, '{$list}')\n WHERE files.id in ({$list})\n ";
$db->query($sql);
}
