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view plugins/mod_debug_sql.lua @ 14140:c9c4a13732e4 13.0

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util.multitable: Don't treat false as a missing key 'if not next(some_table)' is a tempting pattern to check whether a table is empty, but we have had multiple bugs in the past where a literal `false` was present as a key, incorrectly matching this test. The correct test is to test for nil, which cannot ever be a key, and means the table is legitimately empty.
author Matthew Wild <mwild1@gmail.com>
date Fri, 17 Apr 2026 17:45:31 +0100
parents 5edb0d01a94f
children
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-- Enables SQL query logging
--
-- luacheck: ignore 213/uri

module:set_global();

local engines = module:shared("/*/sql/connections");

for uri, engine in pairs(engines) do
	engine:debug(true);
end

setmetatable(engines, {
	__newindex = function (t, uri, engine)
		engine:debug(true);
		rawset(t, uri, engine);
	end
});

function module.unload()
	setmetatable(engines, nil);
	for uri, engine in pairs(engines) do
		engine:debug(false);
	end
end