On Mon, Sep 25, 2017 at 4:04 PM, mathieu stumpf guntz <
[email protected]> wrote:
> Hi, I have some trouble trying to concatenate an array stored in a
> Scribunto data module.
>
> mw.logObject(p.data().voir_aussi)
> table#1 {
> metatable = table#2
> "NU",
> "nú",
> "nụ",
> "nư",
> "nữ",
> "ñu",
> "ňu",
> ".nu",
> "nu!",
> }
> =table.concat(p.data().voir_aussi) == '' -- true
>
>
This is mentioned in the reference manual:[1]
- The table actually returned by mw.loadData() has metamethods that
provide read-only access to the table returned by the module. Since it does
not contain the data directly, pairs() and ipairs() will work but other
methods, including #value, next(), and the functions in the Table
library, will not work correctly.
You'll have to copy the data into a real table before concatenating, or
concatenate manually. The former is likely faster if the table will have
many elements in it.
[1]:
https://www.mediawiki.org/wiki/Extension:Scribunto/Lua_reference_manual#mw.loadData
--
Brad Jorsch (Anomie)
Senior Software Engineer
Wikimedia Foundation
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