Module:TimeAgo
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This module is subject to page protection. It is a highly visible module in use by a very large number of pages, or is substituted very frequently. Because vandalism or mistakes would affect many pages, and even trivial editing might cause substantial load on the servers, it is protected from editing. |
This Lua module is used on a very large number of pages. To avoid large-scale disruption and unnecessary server load, any changes to this module should first be tested in its /sandbox or /testcases subpages. The tested changes can then be added to this page in one single edit. Please consider discussing any changes on the talk page before implementing them. |
The module “TimeAgo” implements {{Time ago}}. See the template's page for documentation. Test cases can be found at Module talk:TimeAgo/testcases and Template:Time ago/testcases.
The above documentation is transcluded from Module:TimeAgo/doc. (edit | history) Editors can experiment in this module's sandbox (create | mirror) and testcases (create) pages. Subpages of this module. |
-- Replacement for [[Template:Time ago]]
local numberSpell = require('Module:NumberSpell')._main
local yesno = require('Module:Yesno')
local p = {}
-- Table to convert entered text values to numeric values.
timeText = {
['seconds'] = 1,
['minutes'] = 60,
['hours'] = 3600,
['days'] = 86400,
['weeks'] = 604800,
['months'] = 2678400,
['years'] = 31557600
}
-- Table containing tables of possible units to use in output.
timeUnits = {
[1] = { 'second', 'seconds', "second's", "seconds'" },
[60] = { 'minute', 'minutes', "minutes'", "minutes'" },
[3600] = { 'hour', 'hours', "hour's", "hours'" },
[86400] = { 'day', 'days', "day's", "days'" },
[604800] = { 'week', 'weeks', "week's", "weeks'" },
[2678400] = { 'month', 'months', "month's", "months'" },
[31557600] = { 'year', 'years', "year's", "years'" }
}
function p._main( args )
-- Initialize variables
local lang = mw.language.getContentLanguage()
local auto_magnitude_num
local min_magnitude_num
local result
local result_unit
local magnitude = args.magnitude
local min_magnitude = args.min_magnitude
local purge = args.purge
local spell_out = args.spellout
local spell_out_max = args.spelloutmax
-- Add a purge link if something (usually "yes") is entered into the purge parameter
if purge then
purge = ' <span class="plainlinks">([' .. mw.title.getCurrentTitle():fullUrl('action=purge') .. ' purge])</span>'
else
purge = ''
end
-- Check that the entered timestamp is valid. If it isn't, then give an error message.
local noError, inputTime = pcall( lang.formatDate, lang, 'U', args[1], true )
if not noError then
return '<strong class="error">Error: first parameter cannot be parsed as a date or time.</strong>'
end
-- Store the difference between the current time and the inputted time, as well as its absolute value.
local timeDiff = lang:formatDate( 'U', nil, true ) - inputTime
local absTimeDiff = math.abs( timeDiff )
if magnitude then
auto_magnitude_num = 0
min_magnitude_num = timeText[magnitude]
else
-- Calculate the appropriate unit of time if it was not specified as an argument.
local autoMagnitudeData = {
{ denom = 63115200, amn = 31557600 },
{ denom = 5356800, amn = 2678400 },
{ denom = 172800, amn = 86400 },
{ denom = 7200, amn = 3600 },
{ denom = 120, amn = 60 }
}
for i, t in ipairs( autoMagnitudeData ) do
if absTimeDiff / t.denom >= 1 then
auto_magnitude_num = t.amn
break
end
end
auto_magnitude_num = auto_magnitude_num or 1
if min_magnitude then
min_magnitude_num = timeText[min_magnitude]
else
min_magnitude_num = -1
end
end
if not min_magnitude_num then
-- Default to seconds if an invalid magnitude is entered.
min_magnitude_num = 1
end
local magnitude_num = math.max( min_magnitude_num, auto_magnitude_num )
local result_num = math.floor ( absTimeDiff / magnitude_num )
local punctuation_key, suffix
if timeDiff >= 0 then -- Past
if result_num == 1 then
punctuation_key = 1
else
punctuation_key = 2
end
if args.ago == '' then
suffix = ''
else
suffix = ' ' .. (args.ago or 'ago')
end
else -- Future
if args.ago == '' then
suffix = ''
if result_num == 1 then
punctuation_key = 1
else
punctuation_key = 2
end
else
suffix = ' time'
if result_num == 1 then
punctuation_key = 3
else
punctuation_key = 4
end
end
end
result_unit = timeUnits[ magnitude_num ][ punctuation_key ]
-- Convert numerals to words if appropriate.
spell_out_max = tonumber( spell_out_max ) -- Would cause script errors if not a number.
local result_num_text
if ( spell_out == 'auto' and 1 <= result_num and result_num <= 9 and result_num <= ( spell_out_max or 9 ) )
or ( yesno( spell_out ) and 1 <= result_num and result_num <= 100 and result_num <= ( spell_out_max or 100 ) )
then
result_num_text = numberSpell( result_num )
else
result_num_text = tostring( result_num )
end
result = result_num_text .. ' ' .. result_unit .. suffix -- Spaces for suffix have been added in earlier.
return result .. purge
end
function p.main( frame )
local args = require( 'Module:Arguments' ).getArgs( frame, {
valueFunc = function( k, v )
if v then
v = v:match( '^%s*(.-)%s*$' ) -- Trim whitespace.
if k == 'ago' or v ~= '' then
return v
end
end
return nil
end,
wrappers = 'Template:Time ago'
})
return p._main( args )
end
return p