+function DB_get_PREF($myid)
+{
+ global $PREF;
+
+ /* Cardset */
+ $result = mysql_query("SELECT value from User_Prefs".
+ " WHERE user_id='$myid' AND pref_key='cardset'" );
+ $r = mysql_fetch_array($result,MYSQL_NUM);
+ if($r)
+ {
+ if($r[0]=="germancards" && (time()-strtotime( "2009-12-31 23:59:59")<0) ) /* licence only valid until then */
+ $PREF["cardset"]="altenburg";
+ else
+ $PREF["cardset"]="english";
+ }
+ else
+ $PREF["cardset"]="english";
+
+ /* Email */
+ $result = mysql_query("SELECT value FROM User_Prefs".
+ " WHERE user_id='$myid' AND pref_key='email'" );
+ $r = mysql_fetch_array($result,MYSQL_NUM);
+ if($r)
+ {
+ if($r[0]=="emailaddict")
+ $PREF["email"]="emailaddict";
+ else
+ $PREF["email"]="emailnonaddict";
+ }
+ else
+ $PREF["email"]="emailnonaddict";
+
+ return;
+}
+
+function DB_get_email_pref_by_hash($hash)
+{
+ $result = mysql_query("SELECT value FROM Hand".
+ " LEFT JOIN User_Prefs ON Hand.user_id=User_Prefs.user_id".
+ " WHERE hash='$hash' AND pref_key='email'" );
+ $r = mysql_fetch_array($result,MYSQL_NUM);
+ if($r)
+ {
+ if($r[0]=="emailaddict")
+ return "emailaddict";
+ else
+ return "emailnonaddict";
+ }
+ else
+ return "emailnonaddict";
+}
+
+function DB_get_email_pref_by_uid($uid)
+{
+ $result = mysql_query("SELECT value FROM User_Prefs ".
+ " WHERE user_id='$uid' AND pref_key='email'" );
+ $r = mysql_fetch_array($result,MYSQL_NUM);
+ if($r)
+ {
+ if($r[0]=="emailaddict")
+ return "emailaddict";
+ else
+ return "emailnonaddict";
+ }
+ else
+ return "emailnonaddict";
+}
+
+function DB_get_unused_randomnumbers($userstr)
+{
+ $queryresult = mysql_query(" SELECT randomnumbers FROM Game".
+ " WHERE randomnumbers NOT IN".
+ " (SELECT randomnumbers FROM Game".
+ " LEFT JOIN Hand ON Game.id=Hand.game_id".
+ " WHERE user_id IN (". $userstr .")".
+ " GROUP BY randomnumbers".
+ " )");
+
+
+ $r = mysql_fetch_array($queryresult,MYSQL_NUM);
+ if($r)
+ return $r[0];
+ else
+ return "";
+}
+
+function DB_get_number_of_passwords_recovery($user)
+{
+ $queryresult = mysql_query("SELECT COUNT(*) FROM Recovery ".
+ " WHERE user_id=$user ".
+ " AND DATE_SUB(CURDATE(),INTERVAL 1 DAY) <= create_date".
+ " GROUP BY user_id " );
+
+ $r = mysql_fetch_array($queryresult,MYSQL_NUM);
+ if($r)
+ return $r[0];
+ else
+ return 0;
+}
+
+function DB_set_recovery_password($user,$newpw)
+{
+ mysql_query("INSERT INTO Recovery VALUES(NULL,".DB_quote_smart($user).
+ ",".DB_quote_smart($newpw).",NULL)");
+
+ return;
+}
+
+function DB_get_card_name($card)
+{
+ $queryresult = mysql_query("SELECT strength,suite FROM Card WHERE id='$card'");
+
+ $r = mysql_fetch_array($queryresult,MYSQL_NUM);
+ if($r)
+ return $r[0]." of ".$r[1];
+ else
+ return "Error during get_card_name ".$card;
+}
+
+function DB_get_current_playid($gameid)
+{
+ $trick = DB_get_max_trickid($gameid);
+
+ if(!$trick) return NULL;
+
+ $queryresult = mysql_query("SELECT id FROM Play WHERE trick_id='$trick' ORDER BY create_date DESC LIMIT 1");
+
+ $r = mysql_fetch_array($queryresult,MYSQL_NUM);
+ if($r)
+ return $r[0];
+
+ return "";
+}
+
+function DB_get_call_by_hash($hash)
+{
+ $queryresult = mysql_query("SELECT point_call FROM Hand WHERE hash='$hash'");
+
+ $r = mysql_fetch_array($queryresult,MYSQL_NUM);
+ if($r)
+ return $r[0];
+
+ return NULL;
+}
+
+function DB_get_partner_call_by_hash($hash)
+{
+ $partner = DB_get_partner_hash_by_hash($hash);
+
+ if($partner)
+ {
+ $queryresult = mysql_query("SELECT point_call FROM Hand WHERE hash='$partner'");
+
+ $r = mysql_fetch_array($queryresult,MYSQL_NUM);
+ if($r)
+ return $r[0];
+ }
+
+ return NULL;
+}
+
+function DB_get_partner_hash_by_hash($hash)
+{
+ $gameid = DB_get_gameid_by_hash($hash);
+ $party = DB_get_party_by_hash($hash);
+
+ $queryresult = mysql_query("SELECT hash FROM Hand WHERE game_id='$gameid' AND party='$party' AND hash<>'$hash'");
+
+ $r = mysql_fetch_array($queryresult,MYSQL_NUM);
+ if($r)
+ return $r[0];
+
+ return NULL;
+}
+
+function DB_format_gameid($gameid)
+{
+ $session = DB_get_session_by_gameid($gameid);
+
+ /* get number of game */
+ $result = mysql_query("SELECT COUNT(*),create_date FROM Game".
+ " WHERE session='$session' ".
+ " AND TIMEDIFF(create_date, (SELECT create_date FROM Game WHERE id='$gameid'))<=0 ".
+ " GROUP by session");
+ $r = mysql_fetch_array($result,MYSQL_NUM);
+
+ return $session.".".$r[0];
+}
+
+function DB_get_reminder($user,$gameid)
+{
+ $queryresult = mysql_query("SELECT COUNT(*) FROM Reminder ".
+ " WHERE user_id=$user ".
+ " AND game_id=$gameid ".
+ " AND DATE_SUB(CURDATE(),INTERVAL 1 DAY) <= create_date".
+ " GROUP BY user_id " );
+
+ $r = mysql_fetch_array($queryresult,MYSQL_NUM);
+ if($r)
+ return $r[0];
+ else
+ return 0;
+}
+
+function DB_set_reminder($user,$gameid)
+{
+ mysql_query("INSERT INTO Reminder ".
+ " VALUES(NULL, ".DB_quote_smart($user).", ".DB_quote_smart($gameid).
+ ", NULL) ");
+ return 0;
+}
+
+function DB_is_session_active($session)
+{
+ $queryresult = mysql_query("SELECT COUNT(*) FROM Game ".
+ " WHERE session=$session ".
+ " AND status<>'gameover' ");
+
+ $r = mysql_fetch_array($queryresult,MYSQL_NUM);
+ if($r)
+ return $r[0];
+ else
+ return -1;
+}
+
+function DB_get_score_by_gameid($gameid)
+{
+ /* returns the points of a game from the point of the re parth (<0 if they lost) */
+ $queryresult = mysql_query("SELECT COUNT(*),party FROM Score ".
+ " WHERE game_id=$gameid ".
+ " GROUP BY party ");
+
+ $re = 0;
+ $contra = 0;
+
+ while($r = mysql_fetch_array($queryresult,MYSQL_NUM) )
+ {
+ if($r[1] == "re")
+ $re += $r[0];
+ else if ($r[1] == "contra")
+ $contra += $r[0];
+ };
+
+ return ($re - $contra);
+}
+
+function DB_get_gameids_of_finished_games_by_session($session)
+{
+ $ids = array ();
+
+ $queryresult = mysql_query("SELECT id FROM Game ".
+ " WHERE session=$session ".
+ " AND status='gameover' ".
+ " ORDER BY create_date ASC");
+
+ $i=0;
+ while($r = mysql_fetch_array($queryresult,MYSQL_NUM) )
+ {
+ $ids[$i] = $r[0];
+ $i++;
+ }
+
+ return $ids;
+}
+
+function DB_get_card_value_by_cardid($id)
+{
+ $queryresult = mysql_query("SELECT points FROM Card ".
+ " WHERE id=$id ");
+
+ $r = mysql_fetch_array($queryresult,MYSQL_NUM);
+ if($r)
+ return $r[0];
+ else
+ return NULL;
+}