protected function ensureLinksCache()
{
if ($this->linksCache === null) {
try {
$pieCrust = $this->page->getApp();
$pageRepository = $pieCrust->getEnvironment()->getPageRepository();
$this->linksCache = array();
$skipNames = array('Thumbs.db');
$it = new FilesystemIterator($this->baseDir);
foreach ($it as $item) {
$basename = $item->getBasename();
// Skip dot files, Thumbs.db, etc.
if (!$basename or $basename[0] == '.') {
continue;
}
if (in_array($item->getFilename(), $skipNames)) {
continue;
}
if ($item->isDir()) {
$linker = new Linker($this->page, $item->getPathname());
$this->linksCache[$basename . '_'] = $linker;
// We add '_' at the end of the directory name to avoid
// collisions with a possibly existing page with the same
// name (since we strip out the '.html' extension).
// This means the user must access directories with
// 'link.dirname_' instead of 'link.dirname' but hey, if
// you have a better idea, send me an email!
} else {
$path = $item->getPathname();
try {
$relativePath = PageHelper::getRelativePath($this->page);
$uri = UriBuilder::buildUri($relativePath);
// To get the link's page, we need to be careful with the case
// where that page is the currently rendering one. This is
// because it could be rendering a sub-page -- but we would be
// requesting the default first page, which would effectively
// change the page number *while* we're rendering, which leads
// to all kinds of bad things!
// TODO: obviously, there needs to be some design changes to
// prevent this kind of chaotic behaviour.
if ($path == $this->page->getPath()) {
$page = $this->page;
} else {
$page = $pageRepository->getOrCreatePage($uri, $path);
}
$key = str_replace('.', '_', $item->getBasename('.html'));
$this->linksCache[$key] = array('uri' => $uri, 'name' => $key, 'is_dir' => false, 'is_self' => $basename == $this->selfName, 'page' => new PaginationData($page));
} catch (Exception $e) {
throw new PieCrustException("Error while loading page '{$path}' for linking from '{$this->page->getUri()}': " . $e->getMessage(), 0, $e);
}
}
}
if ($this->sortByName) {
if (false === usort($this->linksCache, array($this, 'sortByCustom'))) {
throw new PieCrustException("Error while sorting pages with the specified setting: {$this->sortByName}");
}
}
if ($this->selfName != null) {
// Add special stuff only for the original Linker
// (the one directly created by the current page).
if (PageHelper::isRegular($this->page)) {
// Add a link to go up to the parent directory, but stay inside
// the app's pages directory.
$parentBaseDir = dirname($this->baseDir);
if (strlen($parentBaseDir) >= strlen($pieCrust->getPagesDir())) {
$linker = new Linker($this->page, dirname($this->baseDir));
$this->linksCache['_'] = $linker;
}
} else {
if (PageHelper::isPost($this->page)) {
// Add a link to go up to the parent directory, but stay inside
// the app's posts directory.
$parentBaseDir = dirname($this->baseDir);
if (strlen($parentBaseDir) >= strlen($pieCrust->getPostsDir())) {
$linker = new Linker($this->page, dirname($this->baseDir));
$this->linksCache['_'] = $linker;
}
}
}
if ($pieCrust->getPagesDir()) {
// Add a shortcut to the pages directory.
$linker = new Linker($this->page, $pieCrust->getPagesDir());
$this->linksCache['_pages_'] = $linker;
}
if ($pieCrust->getPostsDir()) {
// Add a shortcut to the posts directory.
$linker = new Linker($this->page, $pieCrust->getPostsDir());
$this->linksCache['_posts_'] = $linker;
}
}
} catch (Exception $e) {
throw new PieCrustException("Error while building the links from page '{$this->page->getUri()}': " . $e->getMessage(), 0, $e);
}
}
}
