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- <?php
- class Db_Prefs {
- private $pdo;
- private static $instance;
- private $cache;
- function __construct() {
- $this->pdo = Db::pdo();
- $this->cache = array();
- if ($_SESSION["uid"]) $this->cache();
- }
- private function __clone() {
- //
- }
- public static function get() {
- if (self::$instance == null)
- self::$instance = new self();
- return self::$instance;
- }
- function cache() {
- $user_id = $_SESSION["uid"];
- @$profile = $_SESSION["profile"];
- if (!$profile || get_schema_version() < 63) $profile = null;
- $sth = $this->pdo->prepare("SELECT
- value,ttrss_prefs_types.type_name as type_name,ttrss_prefs.pref_name AS pref_name
- FROM
- ttrss_user_prefs,ttrss_prefs,ttrss_prefs_types
- WHERE
- (profile = :profile OR (:profile IS NULL AND profile IS NULL)) AND
- ttrss_prefs.pref_name NOT LIKE '_MOBILE%' AND
- ttrss_prefs_types.id = type_id AND
- owner_uid = :uid AND
- ttrss_user_prefs.pref_name = ttrss_prefs.pref_name");
- $sth->execute([":profile" => $profile, ":uid" => $user_id]);
- while ($line = $sth->fetch()) {
- if ($user_id == $_SESSION["uid"]) {
- $pref_name = $line["pref_name"];
- $this->cache[$pref_name]["type"] = $line["type_name"];
- $this->cache[$pref_name]["value"] = $line["value"];
- }
- }
- }
- function read($pref_name, $user_id = false, $die_on_error = false) {
- $profile = false;
- if (!$user_id) {
- $user_id = $_SESSION["uid"];
- @$profile = $_SESSION["profile"];
- } else {
- $user_id = sprintf("%d", $user_id);
- }
- if (isset($this->cache[$pref_name]) && !$user_id) {
- $tuple = $this->cache[$pref_name];
- return $this->convert($tuple["value"], $tuple["type"]);
- }
- if (!$profile || get_schema_version() < 63) $profile = null;
- $sth = $this->pdo->prepare("SELECT
- value,ttrss_prefs_types.type_name as type_name
- FROM
- ttrss_user_prefs,ttrss_prefs,ttrss_prefs_types
- WHERE
- (profile = :profile OR (:profile IS NULL AND profile IS NULL)) AND
- ttrss_user_prefs.pref_name = :pref_name AND
- ttrss_prefs_types.id = type_id AND
- owner_uid = :uid AND
- ttrss_user_prefs.pref_name = ttrss_prefs.pref_name");
- $sth->execute([":uid" => $user_id, ":profile" => $profile, ":pref_name" => $pref_name]);
- if ($row = $sth->fetch()) {
- $value = $row["value"];
- $type_name = $row["type_name"];
- if ($user_id == $_SESSION["uid"]) {
- $this->cache[$pref_name]["type"] = $type_name;
- $this->cache[$pref_name]["value"] = $value;
- }
- return $this->convert($value, $type_name);
- } else {
- user_error("Fatal error, unknown preferences key: $pref_name (owner: $user_id)", $die_on_error ? E_USER_ERROR : E_USER_WARNING);
- return null;
- }
- }
- function convert($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"];
- } else {
- $user_id = sprintf("%d", $user_id);
- }
- if ($profile) {
- $profile_qpart = "AND profile = '$profile'";
- } else {
- $profile_qpart = "AND profile IS NULL";
- }
- if (!$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 = sprintf("%d", $value);
- }
- if ($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;
- }
- }
- }
- }
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