db-prefs.php

   1 <?php
   2         require_once "config.php";
   3         require_once "db.php";
   4
   5         if (!defined('DISABLE_SESSIONS') && !SINGLE_USER_MODE) {
   6                 if (!$_SESSION["prefs_cache"])
   7                         $_SESSION["prefs_cache"] = array();
   8         }
   9
  10         function get_pref($link, $pref_name, $user_id = false, $die_on_error = false) {
  11
  12                 $pref_name = db_escape_string($pref_name);
  13                 $prefs_cache = true;
  14
  15                 if (!$user_id) {
  16                         $user_id = $_SESSION["uid"];
  17                 } else {
  18                         $user_id = sprintf("%d", $user_id);
  19                         $prefs_cache = false;
  20                 }
  21
  22                 if ($prefs_cache && !defined('DISABLE_SESSIONS') && !SINGLE_USER_MODE) {
  23                         if ($_SESSION["prefs_cache"] && $_SESSION["prefs_cache"][$pref_name]) {
  24                                 $tuple = $_SESSION["prefs_cache"][$pref_name];
  25                                 return convert_pref_type($tuple["value"], $tuple["type"]);
  26                         }
  27                 }
  28
  29                 $result = db_query($link, "SELECT
  30                         value,ttrss_prefs_types.type_name as type_name
  31                         FROM
  32                                 ttrss_user_prefs,ttrss_prefs,ttrss_prefs_types
  33                         WHERE
  34                                 ttrss_user_prefs.pref_name = '$pref_name' AND
  35                                 ttrss_prefs_types.id = type_id AND
  36                                 owner_uid = '$user_id' AND
  37                                 ttrss_user_prefs.pref_name = ttrss_prefs.pref_name");
  38
  39                 if (db_num_rows($result) > 0) {
  40                         $value = db_fetch_result($result, 0, "value");
  41                         $type_name = db_fetch_result($result, 0, "type_name");
  42
  43                         if (!defined('DISABLE_SESSIONS') && !SINGLE_USER_MODE) {
  44                                 if ($user_id = $_SESSION["uid"]) {
  45                                         $_SESSION["prefs_cache"][$pref_name]["type"] = $type_name;
  46                                         $_SESSION["prefs_cache"][$pref_name]["value"] = $value;
  47                                 }
  48                         }
  49
  50                         return convert_pref_type($value, $type_name);
  51
  52                 } else {
  53                         if ($die_on_error) {
  54                                 die("Fatal error, unknown preferences key: $pref_name");
  55                         } else {
  56                                 return null;
  57                         }
  58                 }
  59         }
  60
  61         function convert_pref_type($value, $type_name) {
  62                 if ($type_name == "bool") {
  63                         return $value == "true";
  64                 } else if ($type_name == "integer") {
  65                         return sprintf("%d", $value);
  66                 } else {
  67                         return $value;
  68                 }
  69         }
  70
  71         // doesn't peform any type checking, be vigilant
  72
  73         function set_pref($link, $key, $value) {
  74                 $key = db_escape_string($key);
  75                 $value = db_escape_string($value);
  76
  77                 db_query($link, "UPDATE ttrss_user_prefs SET
  78                         value = '$value' WHERE pref_name = '$key'
  79                                 AND owner_uid = " . $_SESSION["uid"]);
  80
  81                 $_SESSION["prefs_cache"] = array();
  82
  83         }
  84 ?>