查看“︁模块:Db”︁的源代码

local p = {}
local valueTypes = mw.loadData('Module:Autovalue/types')
local groupsConfig = mw.loadData('Module:Autovalue/groups')

local i18n = {
	['true'] = '是',
	['false'] = '否',
	['none'] = '\'\'无\'\'',
	['error_raw_only'] = '<span class="error">Autovalue：数据类型"%s"只能通过tryGetRawValue方法获取值。</span>',
	['category_unknown_value_type'] = '未知自动值类型',
	['category_missing_value'] = '缺失%s',
	['content_or'] = '或',
	['grouping_others'] = '其他',
}

local function tableHasValue (targetTable, targetValue)
    for index, value in ipairs(targetTable) do
        if value == targetValue then
            return true
        end
    end
    return false
end

local function IsSameArray(arr1, arr2)
	if #arr1 ~= #arr2 then
		return false
	end
	for i, entry in ipairs(arr1) do
		if not tableHasValue (arr2, entry) then
			return false
		end
	end
	return true
end

local function ValueTypeExist(valueType)
	return valueTypes[valueType] ~= nil
end

local function MappingKey(key, mappingName)
	return p.getRawValue(key, mappingName) or key
end

local function GetValuesTable(valueType, onlyBE)
	local values
	if valueTypes[valueType].beTable then
		values = mw.loadData('Module:' .. valueType .. ' values')
	end
	return values
end

local function MappingValueFull(mappingFullName, value)
	local mapping = mw.loadData(mappingFullName)
	if mapping[value] then
		return mapping[value]
	else
		return value
	end
end

local function MappingValue(mappingName, value)
	return MappingValueFull('Module:db/' .. mappingName .. ' mapping', value)
end

local function ValueFromValuesByKey(values, key)
	local value = values[key]
	--if value == nil then
	--	value = values[key:gsub('s$', '')]
	--end
	if value == nil then
		value = values['__fallback']
	end
	return value
end

-- 键映射方法。
local keyMappingMethod = {
}

local valueGettingMethod = {
}

-- 将true和false分别转换为'是'和'否'。
local function TrueFalueMapping (value)
	if value == true then
		return i18n['true'];
	elseif value == false then
		return i18n['false'];
	else
		return value
	end
end

-- 为数字添加逗号分隔符。
local function FormatNumber (value)
	if type(value) == 'number' then
		local i, j, minus, int, fraction = tostring(value):find('([-]?)(%d+)([.]?%d*)')
		int = int:reverse():gsub("(%d%d%d)", "%1,")
		return minus .. int:reverse():gsub("^,", "") .. fraction
	else
		return value
	end
end

local function FormatRomanNumber(value)
	local roman = require( [[Module:Roman number]] ).toroman(value)
	if roman then return roman end
	return FormatNumber (value)
end

local function EmptyStringToNone(value)
	if value == '' then return i18n['none'] end
	return value
end

-- 值映射方法，不设置则输出原值。
--数值类
local valueMappingMethod = {
	['4b_nm_difficulty'] = FormatNumber,
--布尔类
	['key_sound'] = TrueFalueMapping,
	['key_sound2'] = (function (value)
		if value == true then
			return 'true';
		elseif value == false then
			return 'false';
		else
			return value
		end
	end),
--字符串类
	['composer'] = (function (value)
		return MappingValue('composer', value)
	end),
}

-- 提供类型名称、键值名称来获取值。返回原始数据类型。
local function tryGetRawValue(valueType, targetName)
	if type(keyMappingMethod[valueType]) == 'function' then
		targetName = keyMappingMethod[valueType](targetName)
	elseif type(valueTypes[valueType].keyMap) == 'string' then
		targetName = MappingKey(targetName, valueTypes[valueType].keyMap)
	end
	if type(valueGettingMethod[valueType]) == 'function' then
		return valueGettingMethod[valueType](targetName)
	else
		return ValueFromValuesByKey(GetValuesTable(valueType), targetName)
	end
end

-- 提供类型名称、键值名称来获取值。返回值应当是字符串。
local function tryGetValue(valueType, targetName)
	if valueTypes[valueType].rawOnly then
		return string.format(
			i18n['error_raw_only'],
			valueType
		)
	end
	local value = tryGetRawValue(valueType, targetName)
	if type(valueMappingMethod[valueType]) == 'function' then
		return valueMappingMethod[valueType](value)
	else
		return value
	end
end

-- 获取值。
local function GetValue(targetName, argType, argMode, nocat)
	if not ValueTypeExist(argType) then
		return '?[[Category:'..i18n['category_unknown_value_type']..']]'
	end

	local value
	local category = ''
	local result
	value = tryGetValue(argType, targetName)
	if value == nil then
		if valueTypes[argType].noNullError then
			value = i18n['none']
		else value = '?'
		end
	end
--707 741
end