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Made page anchor hashes more relevant to the page content

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This will help when adding support for new kinds of page content such as markdown as we won't be able to reference the same ID's as before thus they would break on every save.
This commit is contained in:
Dan Brown 2016-02-21 11:29:46 +00:00
parent fe0b122aca
commit b4dec2a99c
1 changed files with 12 additions and 8 deletions
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20
app/Repos/PageRepo.php
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@ -132,14 +132,13 @@ class PageRepo
$childNodes = $body->childNodes;
// Ensure no duplicate ids are used
$lastId = false;
$idArray = [];
foreach ($childNodes as $index => $childNode) {
/** @var \DOMElement $childNode */
if (get_class($childNode) !== 'DOMElement') continue;
// Overwrite id if not a bookstack custom id
// Overwrite id if not a BookStack custom id
if ($childNode->hasAttribute('id')) {
$id = $childNode->getAttribute('id');
if (strpos($id, 'bkmrk') === 0 && array_search($id, $idArray) === false) {
@ -149,13 +148,18 @@ class PageRepo
}
// Create an unique id for the element
do {
$id = 'bkmrk-' . substr(uniqid(), -5);
} while ($id == $lastId);
$lastId = $id;
// Uses the content as a basis to ensure output is the same every time
// the same content is passed through.
$contentId = 'bkmrk-' . substr(strtolower(preg_replace('/\s+/', '-', trim($childNode->nodeValue))), 0, 20);
$newId = urlencode($contentId);
$loopIndex = 0;
while (in_array($newId, $idArray)) {
$newId = urlencode($contentId . '-' . $loopIndex);
$loopIndex++;
}
$childNode->setAttribute('id', $id);
$idArray[] = $id;
$childNode->setAttribute('id', $newId);
$idArray[] = $newId;
}
// Generate inner html as a string