Module:RandomCargoRecord

Documentation for this module may be created at Module:RandomCargoRecord/doc

local p = {}
local cargo = mw.ext.cargo

function p.randomCargoRecord(frame)
    local getArgs = require('Module:Arguments').getArgs
    local args = getArgs(frame);
    local tableName = args[1]

    if tableName == nil or tableName == "" then
        hasErrors = true
        return string.format("<code>tableName</code> parameter is required")
    end

	local countFields = 'COUNT(*)=total'
	local countArgs = {}
	local countResults = cargo.query(tableName, countFields, countArgs)
	local total = countResults.total

	if total == nil or total == "" then
        return string.format("<code>total</code> could not be calculated from table %s", tableName)
    end

	local number = require('Module:Random').number
	local queryFields = 'game,link'
	local countOffset = number(1, total)

	local args = {
		format = table,
		fields = queryFields,
		limit = 1,
		offset = countOffset
	}
	local result = cargo.query(tableName, fields, args)
    for r = 1, #results do
        local result = results[r]
        return string.format("<h1>%s</h1>", result.link)
    end
end

return p