Module:Diff days - Revision history

Legoktm: Replace Module:No globals with require( "strict" )

2022-10-21T21:35:01Z

Replace Module:No globals with require( "strict" )

← Previous revision		Revision as of 21:35, 21 October 2022
Line 1:		Line 1:
	require('~~Module:No globals~~');		require('strict');
	local get_args = require ('Module:Arguments').getArgs;		local get_args = require ('Module:Arguments').getArgs;
	local lang_object = mw.getContentLanguage();		local lang_object = mw.getContentLanguage();

Trappist the monk at 22:35, 16 March 2022

2022-03-16T22:35:49Z

← Previous revision		Revision as of 22:35, 16 March 2022
Line 24:		Line 24:
	if 0 > precision then		if 0 > precision then
	return '<span style="color:#d33">invalid precision: ' .. precision .. '</span>';		return '<span style="color:#d33">invalid precision: ' .. precision .. '</span>';
			end

			if not t1 or not t2 then
			return '<span style="color:#d33">both of t1 and t2 required</span>';
	end		end

Trappist the monk at 14:52, 16 March 2022

2022-03-16T14:52:17Z

← Previous revision		Revision as of 14:52, 16 March 2022
Line 1:		Line 1:
	require('Module:No globals');		require('Module:No globals');
			local get_args = require ('Module:Arguments').getArgs;

	local lang_object = mw.getContentLanguage();		local lang_object = mw.getContentLanguage();

Line 18:		Line 18:

	local function diff_days (frame)		local function diff_days (frame)
	local t1 = frame~~.args[1]~~; ~~-- t1 is 'start' time~~		local args_t = get_args (frame);
	local t2 = ~~frame.args~~[2]; -- t2 is '~~end~~' time		local t1 = args_t[1]; -- t1 is 'start' time
	local precision = tonumber (~~frame.args~~.precision) or 3; -- number of decimal places to show; default is 3		local t2 = args_t[2]; -- t2 is 'end' time
			local precision = tonumber (args_t.precision) or 3; -- number of decimal places to show; default is 3
	if 0 > precision then		if 0 > precision then
	return '<span style="color:#d33">invalid precision: ' .. precision .. '</span>';		return '<span style="color:#d33">invalid precision: ' .. precision .. '</span>';

Trappist the monk: create;

2022-03-16T14:36:57Z

create;

New page

require('Module:No globals');

local lang_object = mw.getContentLanguage();

--[[--------------------------< D I F F _ D A Y S >------------------------------------------------------------

return difference between two date/time strings <t1>, and <t2>, in days to <precision> decimal places. Converts
each date/time string to a unix timestamp (seconds), subtracts <t1> from <t2>, divides the difference by the number
of seconds in a day (86400) and returns a formatted string to <precision> decimal places. The default precision
is 3 decimal places. A positive result is returned when <t2> is the same as, or is 'later' (more recent) than,
<t1>; negative results else.

to call this from a template:
{{#invoke:diff days|diff_days|<t1>|<t2>|precision=}}
where <t1> and <t2> are date/time strings acceptable to the MediaWiki #time parser

]]

local function diff_days (frame)
local t1 = frame.args[1]; -- t1 is 'start' time
local t2 = frame.args[2]; -- t2 is 'end' time
local precision = tonumber (frame.args.precision) or 3; -- number of decimal places to show; default is 3
if 0 > precision then
return 'invalid precision: ' .. precision .. '';
end

local good;
local time1, time2; -- to hold Unix time stamps representing the dates

good, time1 = pcall (lang_object.formatDate, lang_object, 'U', t1 ); -- convert t1 value to unix timestamp
if not good then
return 'invalid time: ' .. t1 .. '';
end

good, time2 = pcall (lang_object.formatDate, lang_object, 'U', t2 ); -- convert t2 value to unix timestamp
if not good then
return 'invalid time: ' .. t2 .. '';
end

return string.format ('%.'.. precision .. 'f', (time2 - time1)/86400);
end

--[[--------------------------< E X P O R T E D F U N C T I O N >--------------------------------------------
]]

return {
diff_days = diff_days
}