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<?php
declare(strict_types=1);
class FreshRSS_EntryDAOPGSQL extends FreshRSS_EntryDAOSQLite {
#[\Override]
public static function hasNativeHex(): bool {
return true;
}
#[\Override]
public static function sqlHexDecode(string $x): string {
return 'decode(' . $x . ", 'hex')";
}
#[\Override]
public static function sqlHexEncode(string $x): string {
return 'encode(' . $x . ", 'hex')";
}
#[\Override]
public static function sqlIgnoreConflict(string $sql): string {
return rtrim($sql, ' ;') . ' ON CONFLICT DO NOTHING';
}
#[\Override]
protected static function sqlRegex(string $expression, string $regex, array &$values): string {
$matches = static::regexToSql($regex);
if (isset($matches['pattern'])) {
$matchType = $matches['matchType'] ?? '';
if (str_contains($matchType, 'm')) {
// newline-sensitive matching
$matches['pattern'] = '(?m)' . $matches['pattern'];
}
$values[] = $matches['pattern'];
if (str_contains($matchType, 'i')) {
// case-insensitive matching
return "{$expression} ~* ?";
} else {
// case-sensitive matching
return "{$expression} ~ ?";
}
}
return '';
}
#[\Override]
protected function registerSqlFunctions(string $sql): void {
// Nothing to do for PostgreSQL
}
/** @param array<string|int> $errorInfo */
#[\Override]
protected function autoUpdateDb(array $errorInfo): bool {
if (isset($errorInfo[0])) {
if ($errorInfo[0] === FreshRSS_DatabaseDAO::ER_BAD_FIELD_ERROR || $errorInfo[0] === FreshRSS_DatabaseDAOPGSQL::UNDEFINED_COLUMN) {
$errorLines = explode("\n", (string)$errorInfo[2], 2); // The relevant column name is on the first line, other lines are noise
foreach (['attributes'] as $column) {
if (stripos($errorLines[0], $column) !== false) {
return $this->addColumn($column);
}
}
}
}
return false;
}
#[\Override]
public function commitNewEntries(): bool {
//TODO: Update to PostgreSQL 9.5+ syntax with ON CONFLICT DO NOTHING
$sql = 'DO $$
DECLARE
maxrank bigint := (SELECT MAX(id) FROM `_entrytmp`);
rank bigint := (SELECT maxrank - COUNT(*) FROM `_entrytmp`);
BEGIN
INSERT INTO `_entry`
(id, guid, title, author, content, link, date, `lastSeen`, hash, is_read, is_favorite, id_feed, tags, attributes)
(SELECT rank + row_number() OVER(ORDER BY date, id) AS id, guid, title, author, content,
link, date, `lastSeen`, hash, is_read, is_favorite, id_feed, tags, attributes
FROM `_entrytmp` AS etmp
WHERE NOT EXISTS (
SELECT 1 FROM `_entry` AS ereal
WHERE (etmp.id = ereal.id) OR (etmp.id_feed = ereal.id_feed AND etmp.guid = ereal.guid))
ORDER BY date, id);
DELETE FROM `_entrytmp` WHERE id <= maxrank;
END $$;';
$hadTransaction = $this->pdo->inTransaction();
if (!$hadTransaction) {
$this->pdo->beginTransaction();
}
$result = $this->pdo->exec($sql) !== false;
if (!$hadTransaction) {
$this->pdo->commit();
}
return $result;
}
}
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