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move from index based to exists strategy here

0.6.0-stable
Sean Dague 2008-10-14 20:07:11 +00:00
parent a27352010a
commit 7d6426f156
1 changed files with 36 additions and 10 deletions
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42
OpenSim/Data/SQLite/SQLiteUserData.cs
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@ -117,13 +117,6 @@ namespace OpenSim.Data.SQLite
setupUserFriendsCommands(daf, conn);
daf.Fill(ds.Tables["userfriends"]);
string Unique = "create unique index friend_unique on userfriends (ownerID,friendID)";
using (SqliteCommand cmd = new SqliteCommand(Unique, g_conn))
{
cmd.ExecuteNonQuery();
}
}
return;
@ -209,6 +202,36 @@ namespace OpenSim.Data.SQLite
#region User Friends List Data
private bool ExistsFriend(UUID owner, UUID friend)
{
string FindFriends = "select * from userfriends where (ownerID=:ownerID and friendID=:friendID) or (ownerID=:friendID and friendID=:ownerID)";
using (SqliteCommand cmd = new SqliteCommand(FindFriends, g_conn))
{
cmd.Parameters.Add(new SqliteParameter(":ownerID", owner.ToString()));
cmd.Parameters.Add(new SqliteParameter(":friendID", friend.ToString()));
try
{
using (IDataReader reader = cmd.ExecuteReader())
{
if(reader.Read())
{
reader.Close();
return true;
}
else
{
reader.Close();
return false;
}
}
}
catch (Exception ex)
{
m_log.Error("[USER DB]: Exception getting friends list for user: " + ex.ToString());
return false;
}
}
}
/// <summary>
/// Add a new friend in the friendlist
/// </summary>
@ -217,7 +240,10 @@ namespace OpenSim.Data.SQLite
/// <param name="perms">permission flag</param>
override public void AddNewUserFriend(UUID friendlistowner, UUID friend, uint perms)
{
string InsertFriends = "insert or ignore into userfriends(ownerID, friendID, friendPerms) values(:ownerID, :friendID, :perms)";
if (ExistsFriend(friendlistowner, friend))
return;
string InsertFriends = "insert into userfriends(ownerID, friendID, friendPerms) values(:ownerID, :friendID, :perms)";
using (SqliteCommand cmd = new SqliteCommand(InsertFriends, g_conn))
{
cmd.Parameters.Add(new SqliteParameter(":ownerID", friendlistowner.ToString()));