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<?php
class Db_Prefs {
private $pdo;
private static $instance;
private $cache;
function __construct() {
$this->pdo = Db::pdo();
$this->cache = [];
$this->cache_prefs();
}
private function __clone() {
//
}
public static function get() {
if (self::$instance == null)
self::$instance = new self();
return self::$instance;
}
private function cache_prefs() {
if (!empty($_SESSION["uid"])) {
$profile = $_SESSION["profile"] ?? false;
if (!is_numeric($profile) || !$profile || get_schema_version() < 63) $profile = null;
$sth = $this->pdo->prepare("SELECT up.pref_name, pt.type_name, up.value
FROM ttrss_user_prefs up
JOIN ttrss_prefs p ON (up.pref_name = p.pref_name)
JOIN ttrss_prefs_types pt ON (p.type_id = pt.id)
WHERE
up.pref_name NOT LIKE '_MOBILE%' AND
(profile = :profile OR (:profile IS NULL AND profile IS NULL)) AND
owner_uid = :uid");
$sth->execute([":profile" => $profile, ":uid" => $_SESSION["uid"]]);
while ($row = $sth->fetch(PDO::FETCH_ASSOC)) {
$pref_name = $row["pref_name"];
$this->cache[$pref_name] = [
"type" => $row["type_name"],
"value" => $row["value"]
];
}
}
}
function read($pref_name, $user_id = false, $die_on_error = false) {
if (!$user_id) {
$user_id = $_SESSION["uid"];
$profile = $_SESSION["profile"] ?? false;
} else {
$profile = false;
}
if ($user_id == ($_SESSION['uid'] ?? false) && isset($this->cache[$pref_name])) {
$tuple = $this->cache[$pref_name];
return $this->convert($tuple["value"], $tuple["type"]);
}
if (!is_numeric($profile) || !$profile || get_schema_version() < 63) $profile = null;
$sth = $this->pdo->prepare("SELECT up.pref_name, pt.type_name, up.value
FROM ttrss_user_prefs up
JOIN ttrss_prefs p ON (up.pref_name = p.pref_name)
JOIN ttrss_prefs_types pt ON (p.type_id = pt.id)
WHERE
up.pref_name = :pref_name AND
(profile = :profile OR (:profile IS NULL AND profile IS NULL)) AND
owner_uid = :uid");
$sth->execute([":uid" => $user_id, ":profile" => $profile, ":pref_name" => $pref_name]);
if ($row = $sth->fetch(PDO::FETCH_ASSOC)) {
$value = $row["value"];
$type_name = $row["type_name"];
if ($user_id == ($_SESSION["uid"] ?? false)) {
$this->cache[$pref_name] = [
"type" => $row["type_name"],
"value" => $row["value"]
];
}
return $this->convert($value, $type_name);
} else if ($die_on_error) {
user_error("Failed retrieving preference $pref_name for user $user_id", E_USER_ERROR);
} else {
user_error("Failed retrieving preference $pref_name for user $user_id", E_USER_WARNING);
}
return null;
}
function convert($value, $type_name) {
if ($type_name == "bool") {
return $value == "true";
} else if ($type_name == "integer") {
return (int)$value;
} else {
return $value;
}
}
function write($pref_name, $value, $user_id = false, $strip_tags = true) {
if ($strip_tags) $value = strip_tags($value);
if (!$user_id) {
$user_id = $_SESSION["uid"];
@$profile = $_SESSION["profile"] ?? false;
} else {
$profile = null;
}
if (!is_numeric($profile) || !$profile || get_schema_version() < 63) $profile = null;
$type_name = "";
$current_value = "";
if (isset($this->cache[$pref_name])) {
$type_name = $this->cache[$pref_name]["type"];
$current_value = $this->cache[$pref_name]["value"];
}
if (!$type_name) {
$sth = $this->pdo->prepare("SELECT type_name
FROM ttrss_prefs,ttrss_prefs_types
WHERE pref_name = ? AND type_id = ttrss_prefs_types.id");
$sth->execute([$pref_name]);
if ($row = $sth->fetch())
$type_name = $row["type_name"];
} else if ($current_value == $value) {
return;
}
if ($type_name) {
if ($type_name == "bool") {
if ($value == "1" || $value == "true") {
$value = "true";
} else {
$value = "false";
}
} else if ($type_name == "integer") {
$value = (int)$value;
}
if ($pref_name == 'USER_TIMEZONE' && $value == '') {
$value = 'UTC';
}
$sth = $this->pdo->prepare("UPDATE ttrss_user_prefs SET
value = :value WHERE pref_name = :pref_name
AND (profile = :profile OR (:profile IS NULL AND profile IS NULL))
AND owner_uid = :uid");
$sth->execute([":pref_name" => $pref_name, ":value" => $value, ":uid" => $user_id, ":profile" => $profile]);
if ($user_id == $_SESSION["uid"]) {
$this->cache[$pref_name]["type"] = $type_name;
$this->cache[$pref_name]["value"] = $value;
}
}
}
}
|
