Strange tinsert behavior

[Nibelheim]

I had a block of code that basically went like this:

local Tables = {
    [1] = CharacterTable,
    [2] = GlobalTable,
}
local TableEntry = {
    name = MyName
}
 
for k, v in ipairs(Tables) do
    table.insert(v, 1, TableEntry)
end

Now, what happened was TableEntry was getting inserted twice, into both Tables, if both Tables contained the same data. So I'd end up with:

CharacterTable = {
    {
        ["name"] = "Me",
    }
    {
        ["name"] = "Me",
    }
}

GlobalTable = {
    {
        ["name"] = "Me",
    }
    {
        ["name"] = "Me",
    }
}

(If CharacterTable and GlobalTable contained a slightly different set of data before I inserted, then inserting would work fine.)

However, if I hotwire my code to this, it works fine:

local Tables = {
    [1] = CharacterTable,
    [2] = GlobalTable,
}
local TableEntry1 = {
    name = MyName
}
local TableEntry2 = {
    name = MyName
}
 
 
for k, v in ipairs(Tables) do
    if k == 1 then
        table.insert(v, 1, TableEntry1)
    else
        table.insert(v, 1, TableEntry2)
    end
end

Am I missing something obvious?

[Saiket]

In your first example code, were CharacterTable and GlobalTable references to the same table? That's the most likely explanation I can think of.

[Nibelheim]

Originally Posted by Saiket In your first example code, were CharacterTable and GlobalTable references to the same table? That's the most likely explanation I can think of.

They're two separate tables.

[Saiket]

Assuming that first code block was your entire code, the only other things I can think of are a modified table.insert function, or metatables. It runs fine for me both in a standalone Lua interpreter and in-game.

[Nibelheim]

Originally Posted by Saiket Assuming that first code block was your entire code, the only other things I can think of are a modified table.insert function, or metatables. It runs fine for me both in a standalone Lua interpreter and in-game.

Hmm, definitely is odd behavior. Oh well, I shall stash it in it's own little box of strangeness.

[Phanx]

Where are the CharacterTable and GlobalTable tables defined? I don't see that being done in your code.

[Nibelheim]

Originally Posted by Phanx Where are the CharacterTable and GlobalTable tables defined? I don't see that being done in your code.

They're defined in a default table registry via AceDB. Just a simple char and global space. It's possible the way Ace deals with it's saved settings, and char/global tables, is interfering with the process.

[Torhal]

More than possible. AceDB is a wrapper around the actual SavedVariables. If you want to set a value on the raw table, you'll have to do something like this:

function MyAddOn:OnInitialize()
    local db = LibStub("AceDB-3.0"):New("MyDB", DATABASE_DEFAULTS, "Default")
    DATABASE_DEFAULTS = nil
    private.db = db
 
    local raw_db = _G["MyDB"]
 
    if not raw_db.version or raw_db.version < private.database_version then
        raw_db.version = private.database_version
    end
end

Variable names have been changed to protect the innocent.