Last modified: 2014-05-27 00:13:05 UTC

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Bug 64141 - Metatables don't work from wikitext (__index)


Summary:	Metatables don't work from wikitext (__index)

Status:	RESOLVED FIXED

Product:	MediaWiki extensions
Classification:	Unclassified
Component:	Scribunto (Other open bugs)
Version:	unspecified
Hardware:	All All

Importance:	Normal normal (vote)
Target Milestone:	---
Assigned To:	Nobody - You can work on this!

URL:
Whiteboard:
Keywords:

Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2014-04-19 19:57 UTC by Jackmcbarn
Modified:	2014-05-27 00:13 UTC (History)
CC List:	3 users (show)

See Also:
Web browser:	---
Mobile Platform:	---
Assignee Huggle Beta Tester:	---

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Description Jackmcbarn 2014-04-19 19:57:40 UTC

Create Module:Foo with the following code:
local p, mt = {}, {}

function mt.__index(table, key)
	return function(frame)
		return 'You called the ' .. key .. ' function'
	end
end

setmetatable(p, mt)

return p

From the console, "=p.bar()" correctly produces "You called the bar function". However, from wikitext, "{{#invoke:Foo|bar}}" instead produces "Script error: The function "bar" does not exist."

Comment 1 Jackmcbarn 2014-04-19 21:15:25 UTC

I don't currently have LuaSandbox set up, but while trying to fix this, I noticed that in LuaStandalone, passing an object from Lua to PHP and back causes its metatable to be lost.

Comment 2 Gerrit Notification Bot 2014-04-20 03:44:30 UTC

Change 127458 had a related patch set uploaded by Jackmcbarn:
Keep modules' export tables inside Lua

https://gerrit.wikimedia.org/r/127458

Comment 3 Gerrit Notification Bot 2014-05-27 00:12:06 UTC

Change 127458 merged by jenkins-bot:
Keep modules' export tables inside Lua

https://gerrit.wikimedia.org/r/127458

Comment 4 Jackmcbarn 2014-05-27 00:13:05 UTC

This will be live on all WMF wikis starting June 5th.

Wikimedia Bugzilla is closed!

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