Modul:category tree

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Dokumentasjon for modulen kan opprettast på Modul:category tree/dok

local export = {}
local m_languages = require('Module:languages')
local m_utilities = require('Module:utilities')
local kategoriser = require('Modul:kategoriser')

-- The main entry point.
-- This is the only function that can be invoked from a template.
function export.show(frame)
	if mw.title.getCurrentTitle().nsText == "Template" then
		return "(This template should be used on pages in the Category: namespace.)"
	elseif mw.title.getCurrentTitle().nsText ~= "Kategori" then
		error("This template/module can only be used on pages in the Category: namespace.")
	end
	
	local template = frame.args["template"]
	
	if not template or template == "" then
		error("The \"template\" parameter was not specified.")
	end
	
	local submodule = require("Module:category tree/" .. template)
	
	-- Get all the parameters and the label data
	local current
	
	if submodule.new_main then
		current = submodule.new_main(frame)
	else
		local info = {}
		
		for key, val in pairs(frame.args) do
			info[key] = val; if info[key] == "" then info[key] = nil end
		end
	
		info.template = nil
		current = submodule.new(info, true)
	end

	local boxes = {}
	local display = {}
	local categories = {}
	
	-- Check if the category is empty
	local isEmpty = mw.site.stats.pagesInCategory(mw.title.getCurrentTitle().text, "all") == 0
	
	-- Are the parameters valid?
	if not current then
		table.insert(categories, "[[Kategori:Kategoriar med ugyldig merkelapp]]")
		table.insert(categories, isEmpty and "[[Kategori:Tommekategoriar]]" or nil)
		table.insert(display, show_error(
			"The label given to the " ..
			mw.getCurrentFrame():expandTemplate{title = "temp", args = {template}} ..
			" template is not valid. You may have mistyped it, or it simply has not been created yet. " ..
			"To add a new label, please consult the documentation of the template."))
		
		-- Exit here, as all code beyond here relies on current not being nil
		return table.concat(categories, "") .. table.concat(display, "\n\n")
	end
	
	-- Does the category have the correct name?
	if mw.title.getCurrentTitle().text ~= current:getCategoryName() then
		table.insert(categories, "[[Kategori:Kategoriar med feil namn]]")
		table.insert(display, show_error(
			"Basert på argumenta til malen " ..
			mw.getCurrentFrame():expandTemplate{title = "temp", args = {template}} ..
			" skulle denne kategorien heitt '''[[:Kategori:" .. current:getCategoryName() .. "]]'''."))
	end
	
	-- Add cleanup category for empty categories
	if isEmpty and not current:canBeEmpty() then
		table.insert(categories, "[[Kategori:Tomme kategoriar]]")
	end
	
	if current:isHidden() then
		table.insert(categories, "__HIDDENCAT__")
	end
	
	table.insert(boxes, show_catfix(current))
	table.insert(boxes, show_editlink(current))
	table.insert(boxes, show_pagelist(current))
	
	-- Generate the displayed information
	table.insert(display, show_breadcrumbs(current))
	table.insert(display, show_description(current))
	table.insert(display, show_appendix(current))
	table.insert(display, show_children(current))
	table.insert(display, show_TOC(current))
	
	show_categories(current, categories)
	
	return table.concat(categories, "") .. table.concat(boxes, "\n") .. "\n" .. table.concat(display, "\n\n")
end

function show_error(text)
	return  mw.getCurrentFrame():expandTemplate{title = "maintenance box", args = {
		"red",
		image = "[[File:Ambox warning pn.svg|50px]]",
		title = "The automatically-generated contents of this category has errors.",
		text = text,
		}}
end

-- Check the name of the current page, and return an error if it's not right.
function check_name(current, template, info)
	local errortext = nil
	local category = nil
	
	if not current then
		errortext =
			"The label \"" .. (info.label or "") .. "\" given to the " .. mw.getCurrentFrame():expandTemplate{title = "temp", args = {template}} .. " template is not valid. " ..
			"You may have mistyped it, or it simply has not been created yet. To add a new label, please consult the documentation of the template."
		category = "[[Kategori:Kategoriar med ugyldig merkelapp]]"
	else
		
	end
	
	if errortext then
		return (category or "") .. show_error(errortext)
	else
		return nil
	end
end

function show_catfix(current)
	if not current._lang or current._lang:getCode() == "he" or current._lang:getCode() == "ar" then
		return nil
	end
	
	return m_utilities.catfix(current._lang, (sc and require("Module:scripts").getByCode(info.sc) or nil))
end

-- Show the parent categories that the current category should be placed in.
function show_categories(current, categories)
	local parents = current:getParents()
	
	if not parents then
		return
	end
	
	for _, parent in ipairs(parents) do
		if type(parent.name) == "string" then
			if not (current._lang and current:getCategoryName() == mw.getContentLanguage():ucfirst(current._lang:getCategoryName())) and not (current._sc and current:getCategoryName():find(mw.getContentLanguage():ucfirst(current._sc:getCategoryName()), nil, true)) and current:getInfo().code then
				require("Module:debug").track("category tree/string")
			end
			
			table.insert(categories, "[[" .. kategoriser.engelskTilNorsk(parent.name, true) .. "|" .. parent.sort .. "]]")
		else
			table.insert(categories, "[[Kategori:" .. parent.name:getCategoryName() .. "|" .. parent.sort .. "]]")
		end
	end
	
	-- Also put the category in its corresponding "umbrella" or "by language" category.
	local umbrella = current:getUmbrella()
	
	if umbrella then
		if type(umbrella) == "string" then
			table.insert(categories, "[[" .. umbrella .. "|" .. current:getCategoryName() .. "]]")
		else
			table.insert(categories, "[[Kategori:" .. umbrella:getCategoryName() .. "|" .. current:getCategoryName() .. "]]")
		end
	end
end

function show_editlink(current)
	return
		"<div class=\"noprint plainlinks\" style=\"float: right; clear: both; margin: 0 0 .5em 1em; background: #f9f9f9; border: 1px #aaaaaa solid; padding: 5px; font-weight: bold;\">[" ..
		mw.getCurrentFrame():callParserFunction{name = "fullurl", args = {current:getDataModule(), action = "edit"}} ..
		" Endra kategoridata]</div>"
end

function show_pagelist(current) -- fjerna; saknar utviding
	return ''
end

-- Show navigational "breadcrumbs" at the top of the page.
function show_breadcrumbs(current)
	local steps = {}
	
	-- Start at the current label and move our way up the "chain" from child to parent, until we can't go further.
	while current do
		local category = nil
		local display_name = nil
		
		if type(current) == "string" then
			category = current
			display_name = current:gsub("^[KC]ategor[iy]:", "")
		else
			category = "Kategori:" .. current:getCategoryName()
			display_name = current:getBreadcrumbName()
		end
		
		display_name = mw.getContentLanguage():ucfirst(display_name)
		table.insert(steps, 1, "» [[:" .. category .. "|" .. display_name .. "]]")
		
		-- Move up the "chain" by one level.
		if type(current) == "string" then
			current = nil
		else
			current = current:getParents()
			
			if current then
				current = current[1].name
			end
		end
	end
	
	return "<small>" .. table.concat(steps, " ") .. "</small>"
end

-- Show a short description text for the category.
function show_description(current)
	return (current:getDescription() or "")
end

function show_appendix(current)
	local appendix
	
	if current.getAppendix then
		appendix = current:getAppendix()
	end
	
	if appendix then
		return "For more information, see [[" .. appendix .. "]]."
	else
		return nil
	end
end

-- Show a list of child categories.
function show_children(current)
	local children = current:getChildren()
	
	if not children then
		return nil
	end
	
	table.sort(children, function(first, second) return first.sort < second.sort end)
	
	local children_list = {}
	
	for _, child in ipairs(children) do
		local child_basic = child.name:getCategoryName()
		local child_page = mw.title.new("Kategori:" .. child_basic)
		
		if child_page.exists then
			local child_description = child.name:getDescription()
			table.insert(children_list, "* [[:Kategori:" .. child_basic .. "]]: " .. child_description)
		end
	end
	
	return table.concat(children_list, "\n")
end

-- Show a table of contents with links to each letter in the language's script.
function show_TOC(current)
	local code = current:getInfo().code
	
	if code and not require("Module:languages").getByCode(code) then
		return nil
	end
	
	if not code then
		code = "en"
	end
	
	-- If category can be empty, then it only contains subcategories.
	local hasPages = not current:canBeEmpty()
	
	local titleText = mw.title.getCurrentTitle().text
	
	local inCategory

	if hasPages then
		inCategory = mw.site.stats.pagesInCategory(titleText, "pages")
	else
		inCategory = mw.site.stats.pagesInCategory(titleText, "subcats")
	end
	
	-- No need for a TOC if all pages or subcategories can fit on one page.
	if inCategory > 200 then
		
		-- This category is very large, see if there is an "extended" version of the TOC.
		if inCategory > 2500 then
			local TOC_template_extended = mw.title.new("Template:" .. code .. "-categoryTOC/full")
			
			if TOC_template_extended.exists then
				return mw.getCurrentFrame():expandTemplate{title = TOC_template_extended.text, args = {}}
			end
		end
		
		local TOC_template = mw.title.new("Template:" .. code .. "-categoryTOC")
		
		if TOC_template.exists then
			return mw.getCurrentFrame():expandTemplate{title = TOC_template.text, args = {}}
		end
	end
	
	return nil
end

return export