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Workaround for PostgreSQL inconsistent bytea encoding requirements. #594

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Workaround for PostgreSQL inconsistent bytea encoding requirements. #594

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18 changes: 15 additions & 3 deletions module/VuFind/src/VuFind/Db/Row/Search.php
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Expand Up @@ -58,6 +58,11 @@ public function getSearchObject()
// Resource check for PostgreSQL compatibility:
$raw = is_resource($this->search_object)
? stream_get_contents($this->search_object) : $this->search_object;
// Some search objects may be Base64-encoded; if so, they're flagged
// with a prefix so we know how to decode them:
if (substr($raw, 0, 5) == 'B64__') {
$raw = base64_decode(substr($raw, 5));
}
$result = unserialize($raw);
if (!($result instanceof \VuFind\Search\Minified)) {
throw new \Exception('Problem decoding saved search');
Expand All @@ -75,9 +80,16 @@ public function save()
// Note that if we have a resource, we need to grab the contents before
// saving -- this is necessary for PostgreSQL compatibility although MySQL
// returns a plain string
$this->search_object = is_resource($this->search_object)
? stream_get_contents($this->search_object)
: $this->search_object;
if (is_resource($this->search_object)) {
$this->search_object = stream_get_contents($this->search_object);
}
// Due to inconsistent encoding standards for bytea fields in different
// versions of PostgreSQL, we need to base64-encode serialized objects
// before storing them to avoid errors caused by special characters such
// as backslashes.
if ('PostgreSQL' == $this->sql->getAdapter()->getPlatform()->getName()) {
$this->search_object = 'B64__' . base64_encode($this->search_object);
}
parent::save();
}
}