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วิกิพีเดีย

มอดูล:Category handler/doc

มกราคม 09, 2022

This module implements the {{category handler}} template. The category handler template helps other templates to automate both categorization and category suppression. For information about using the category handler template in other templates, please see the template documentation. Keep reading for information about using the category handler module in other Lua modules, or for information on exporting this module to other wikis.

Use from other Lua modules

When not to use this module

For cases where a module only needs to categorise in one of the namespaces main (articles), file (images) or category, then using this module is overkill. Instead, you can simply get a title object using mw.title.getCurrentTitle and check the nsText field. For example: 

local title = mw.title.getCurrentTitle() if title.nsText == 'File' then -- do something end

However, if your module needs to categorize in any other namespace, then we recommend you use this module, since it provides proper category suppression and makes it easy to select how to categorize in the different namespaces.

Namespaces

This module detects and groups all the different namespaces used on Wikipedia into several types. These types are used as parameter names in this module.

main = Main/article space, as in normal Wikipedia articles.
talk = Any talk space, such as page names that start with "Talk:", "User talk:", "File talk:" and so on.
user, wikipedia, file ... = The other namespaces except the talk pages. Namespace aliases are also accepted. See the table below for the full list.
other = Any namespaces that were not specified as a parameter to the template. See examples below.
List of possible namespace parameters

(excluding talk and other)

Namespace Aliases
main
ผู้ใช้ user
วิกิพีเดีย project, wikipedia, wp
ไฟล์ file, ภาพ, image
มีเดียวิกิ mediawiki
แม่แบบ template
วิธีใช้ help, h
หมวดหมู่ category
สถานีย่อย
หนังสือ
ฉบับร่าง
มอดูล module
gadget
gadget definition

Basic usage

This module takes two or more parameters. Here's an example using a hello world program: 

p = {} local categoryHandler = require( 'Module:Category handler' ).main function p.main( frame ) local result = 'Hello world!' local category = categoryHandler{ '[[Category:Somecat]]', nocat = frame.args.nocat -- So "nocat=true/false" works } category = category or '' -- Check that we don't have a nil value for the category variable. return result .. category end return p

The above example uses the default settings for the category handler module. That means the example module will categorize on pages in the following namespaces:

main, file, help, category, portal and book

But it will not categorize in any other namespaces, e.g.:

talk, user, wikipedia, mediawiki, template ...

And it will not categorize on blacklisted pages. (See section blacklist below.)

The reason the category handler module does not categorize in some of the namespaces is that in those namespaces most modules and templates are just demonstrated or listed, not used. Thus most modules and templates should not categorize in those namespaces.

Any module or template that is meant for one or more of the namespaces where this module categorizes can use the basic syntax as shown above.

Advanced usage

This module takes one or more parameters named after the different page types as listed in section namespaces above. By using those parameters you can specify exactly in which namespaces your template should categorize. Like this: 

p = {} local categoryHandler = require( 'Module:Category handler' ).main function p.main( frame ) local result = 'This is a module meant for articles and talk pages.' local category = categoryHandler{ main = '[[Category:Somecat1]]', -- Categorize in main (article) space talk = '[[Category:Somecat2]]', -- Categorize in talk space nocat = frame.args.nocat -- So "nocat=true/false" works } category = category or '' -- Check that we don't have a nil value for the category variable. return result .. category end return p

The above module will only categorize in main and talk space. But it will not categorize on /archive pages since they are blacklisted. (See section blacklist below.) And if you need to demonstrate (discuss) the module on a talkpage, then you can feed "nocat='true'" to prevent that template from categorizing. (See section nocat below.) Like this: 

== My new module == Hey guys, have you seen my new module? {{#invoke:mymodule|main|nocat=true}} Nice, isn't it? --~~~~

Sometimes we want to use the same category in several namespaces, then do like this: 

p = {} local categoryHandler = require( 'Module:Category handler' ).main function p.main( frame ) local result = 'This is a module used in several namespaces.' local category = categoryHandler{ main = '[[Category:Somecat1]]', [ 1 ] = '[[Category:Somecat2]]', -- For help and user space help = 1, user = 1, talk = '', -- No categories on talk pages other = '[[Category:Somecat3]]', -- For all other namespaces nocat = frame.args.nocat -- So "nocat=true/false" works } category = category or '' -- Check that we don't have a nil value for the category variable. return result .. category end return p

In the above example we use a numbered parameter to feed one of the categories, and then we tell this module to use that numbered parameter for both the help and user space.

The category handler module understands an unlimited number of numbered parameters.

The other parameter defines what should be used in the remaining namespaces that have not explicitly been fed data.

Note the empty but defined talk parameter. That stops this module from showing what has been fed to the other parameter, when in talk space.

The category handler module also has a parameter called all. It works like this: 

p = {} local categoryHandler = require( 'Module:Category handler' ).main function p.main( frame ) local result = 'This is a module used in all namespaces.' local category = categoryHandler{ all = '[[Category:Somecat1]]', -- Categorize in all namespaces nocat = frame.args.nocat -- So "nocat=true/false" works } category = category or '' -- Check that we don't have a nil value for the category variable. return result .. category end return p

The above example will categorize in all namespaces, but not on blacklisted pages. If you want to demonstrate that module on a page, then use "nocat=true" to prevent the template from categorizing.

We suggest avoiding the all parameter, since modules and templates should preferably only categorize in the namespaces they need to.

The all parameter can also be combined with the rest of the parameters. Like this: 

p = {} local categoryHandler = require( 'Module:Category handler' ).main function p.main( frame ) local result = 'This is a module used in all namespaces.' local category = categoryHandler{ all = '[[Category:Somecat1]]', -- Categorize in all namespaces main = '[[Category:Somecat2]]', -- And add this in main space other = '[[Category:Somecat3]]', -- And add this in all other namespaces nocat = frame.args.nocat -- So "nocat=true/false" works } category = category or '' -- Check that we don't have a nil value for the category variable. return result .. category end return p

If the above module is placed on an article, then it will add the categories "Somecat1" and "Somecat2". But on all other types of pages it will instead add "Somecat1" and "Somecat3". As the example shows, the all parameter works independently of the rest of the parameters.

Subpages

The category handler module understands the subpage parameter. Like this: 

p = {} local categoryHandler = require( 'Module:Category handler' ).main function p.main( frame ) local result = 'This is a module used in all namespaces.' local category = categoryHandler{ subpage = 'no' -- Don't categorize on subpages wikipedia = '[[Category:Somecat]]', nocat = frame.args.nocat -- So "nocat=true/false" works } category = category or '' -- Check that we don't have a nil value for the category variable. return result .. category end return p

If "subpage='no'" then this template will not categorize on subpages. For the rare occasion you only want to categorize on subpages, then use "subpage='only'". If subpage is empty or undefined then this template categorizes both on basepages and on subpages.

Blacklist

This module has a blacklist of the pages and page types where templates should not auto-categorize. Thus modules that use this meta-template will for instance not categorize on /archive pages and on the subpages of Wikipedia:Template messages.

If you want a template to categorize on a blacklisted page, then feed "nocat = false" to the module when you place it on the page, thus skipping the blacklist check. Note that this module only categorizes if it has data for the namespace. For instance, if the basic syntax is used (see basic usage above), then even if you set "nocat = false" the template will not categorize on a talk page, since it has no data for talk pages. But it has data for help space, so on a blacklisted help page it will categorize.

The blacklist is located in the configuration table cfg.blacklist near the top of the module code.

The "nocat" parameter

This module understands the nocat parameter:

  • If "nocat = true" then this template does not categorize.
  • If nocat is nil then this template categorizes as usual.
  • If "nocat = false" this template categorizes even when on blacklisted pages. (See section blacklist above.)
  • The nocat parameter also accepts aliases for true and false as defined by Module:Yesno, e.g. "yes", "y", "true", and 1 for true, and "no", "n", "false", and 0 for false.

Modules and templates that use {{category handler}} should forward nocat, so they too understand nocat. The code "nocat = frame.args.nocat" shown in the examples on this page does that.

The "categories" parameter

For backwards compatibility this module also understands the categories parameter. It works the same as nocat. Like this:

  • If "categories = false" then this template does not categorize.
  • If categories is empty or undefined then this template categorizes as usual.
  • If "categories = true" this template categorizes even when on blacklisted pages.
  • The categories parameter also accepts aliases for true and false as defined by Module:Yesno, e.g. "yes", "y", "true", and 1 for true, and "no", "n", "false", and 0 for false.

The "category2" parameter

For backwards compatibility this template kind of supports the old "category =" parameter. But the parameter name "category" is already used in this module to feed category data for when in category space. So instead this template uses category2 for the usage similar to nocat. Like this:

  • If "category2 = "" (empty but defined), or "category2 = 'no'", or if category2 is fed any other data (except as described in the next two points), then this template does not categorize.
  • If category2 is undefined or if "category2 = '¬'", then this template categorizes as usual.
  • If "category2 = 'yes'" this template categorizes even when on blacklisted pages.

Categories and text

Besides from categories, you can feed anything else to this module, for instance some text. Like this: 

p = {} local categoryHandler = require( 'Module:Category handler' ).main function p.main( frame ) local result = 'This is a module used on talk pages.' local category = categoryHandler{ talk = '[[Category:Somecat]]', other = '<p class="error">This module should only be used on talk pages.</p>', nocat = frame.args.nocat -- So "nocat=true/false" works } category = category or '' -- Check that we don't have a nil value for the category variable. return result .. category end return p

When the module code above is used on anything other than a talk page, it will look like this:

This is a module used on talk pages.

This module should only be used on talk pages.

That text will not show on blacklisted pages, so don't use this method to show any important information. Feeding "nocat = 'true'" to the template hides the text, just as it suppresses any categories.

The "page" parameter

For testing and demonstration purposes this module can take a parameter named page. Like this: 

p = {} local categoryHandler = require( 'Module:Category handler' ).main function p.main( frame ) local category = categoryHandler{ main = 'Category:Some cat', talk = 'Category:Talk cat', nocat = frame.args.nocat, -- So "nocat=true/false" works page = 'User talk:Example' } return category end return p

In the above code we on purpose left out the brackets around the category names so we see the output on the page. No matter on what kind of page the code above is used it will return this:

Category:Talk cat

The page parameter makes this module behave exactly as if on that page. Even the blacklist works. The pagename doesn't have to be an existing page.

If the page parameter is empty or undefined, the name of the current page determines the result.

You can make it so your module also understands the page parameter. That means you can test how your template will categorize on different pages, without having to actually edit those pages. Then do like this: 

p = {} local categoryHandler = require( 'Module:Category handler' ).main function p.main( frame ) local category = categoryHandler{ main = 'Category:Some cat', talk = 'Category:Talk cat', nocat = frame.args.nocat, -- So "nocat=true/false" works page = frame.args.page -- For testing } return category end return p

Parameters

List of all parameters:

  • First positional parameter - for default settings
  • subpage = 'no' / 'only'
  • 1, 2, 3 ...
  • all = '[[Category:Somecat]]' / 'Text'
  • main = 1, 2, 3 ... / '[[Category:Somecat]]' / 'Text'
  • ...
  • other = 1, 2, 3 ... / '[[Category:Somecat]]' / 'Text'
  • nocat = frame.args.nocat / true / false / 'yes' / 'no' / 'y' / 'n' / 'true' / 'false' / 1 / 0
  • categories = frame.args.categories / false / true / 'no' / 'yes' / 'n' / 'y' / 'false' / 'true' / 0 / 1
  • category2 = frame.args.category or '¬' / 'no' / 'not defined' / '¬' / 'yes'
  • page = frame.args.page / 'User:Example'

Note that empty values to the "main" ... "other" parameters have special meaning (see examples above). The "all" parameter doesn't understand numbered parameters, since there should never be a need for that.

Exporting to other wikis

This module can be exported to other wikis by changing the configuration values in the cfg table. All the variable values are configurable, so after the configuration values have been set there should be no need to alter the main module code. Details of each configuration value are included in the module code comments. In addition, this module requires Module:Namespace detect to be available on the local wiki.

See also

  • {{Category handler}} – for using this module with templates, rather than Lua modules.
  • Wikipedia:Category suppression – The how-to guide.
  • Wikipedia:WikiProject Category Suppression – The WikiProject.
  • Wikipedia:Namespace – Lists all the namespaces.

มกราคม 09, 2022
มอด, category, handler, อหน, าค, อการใช, งานของ, มอด, category, handlerใช, ในการเข, ยนคำอธ, บายแม, แบบหร, อมอด, ลและใส, หมวดหม, วนล, งก, ามภาษาโปรดใช, สนเทศแม, แบบน, ใช, ในข, อความของระบบ, การเปล, ยนแปลงแม, แบบน, ทำให, เก, ดการเปล, ยนแปลงต, อส, วนต, ดต, อผ, ใช. nikhuxhnakhumuxkarichngankhxng mxdul Category handlerichinkarekhiynkhaxthibayaemaebbhruxmxdulaelaishmwdhmu swnlingkkhamphasaoprdichwikisnethsaemaebbniichinkhxkhwamkhxngrabb karepliynaeplngaemaebbnithaihekidkarepliynaeplngtxswntidtxphuichkhxngwikiphiediyinthnthi ephuxhlikeliyngkhwamphidphlad karthakarepliynaeplngid khwrthdlxnginhnayxy sandbox khxngaemaebbkxn hruxxaccathdlxnginhnayxykhxnghnaphuichkhxngkhun oprdaecnginhnaxphipraykxnthakaraekikhThis 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 module implements the category handler template The category handler template helps other templates to automate both categorization and category suppression For information about using the category handler template in other templates please see the template documentation Keep reading for information about using the category handler module in other Lua modules or for information on exporting this module to other wikis enuxha 1 Use from other Lua modules 1 1 When not to use this module 1 2 Namespaces 1 3 Basic usage 1 4 Advanced usage 1 5 Subpages 1 6 Blacklist 1 7 The nocat parameter 1 8 The categories parameter 1 9 The category2 parameter 1 10 Categories and text 1 11 The page parameter 1 12 Parameters 2 Exporting to other wikis 3 See alsoUse from other Lua modules aekikhWhen not to use this module aekikh For cases where a module only needs to categorise in one of the namespaces main articles file images or category then using this module is overkill Instead you can simply get a title object using mw title getCurrentTitle and check the nsText field For example local title mw title getCurrentTitle if title nsText File then do something end However if your module needs to categorize in any other namespace then we recommend you use this module since it provides proper category suppression and makes it easy to select how to categorize in the different namespaces Namespaces aekikh This module detects and groups all the different namespaces used on Wikipedia into several types These types are used as parameter names in this module main Main article space as in normal Wikipedia articles talk Any talk space such as page names that start with Talk User talk File talk and so on user wikipedia file The other namespaces except the talk pages Namespace aliases are also accepted See the table below for the full list other Any namespaces that were not specified as a parameter to the template See examples below List of possible namespace parameters excluding i talk i and i other i Namespace Aliasesmainphuich userwikiphiediy project wikipedia wpifl file phaph imagemiediywiki mediawikiaemaebb templatewithiich help hhmwdhmu categorysthaniyxyhnngsuxchbbrangmxdul modulegadgetgadget definitionBasic usage aekikh This module takes two or more parameters Here s an example using a hello world program p local categoryHandler require Module Category handler main function p main frame local result Hello world local category categoryHandler Category Somecat nocat frame args nocat So nocat true false works category category or Check that we don t have a nil value for the category variable return result category end return p The above example uses the default settings for the category handler module That means the example module will categorize on pages in the following namespaces main file help category portal and bookBut it will not categorize in any other namespaces e g talk user wikipedia mediawiki template And it will not categorize on blacklisted pages See section blacklist below The reason the category handler module does not categorize in some of the namespaces is that in those namespaces most modules and templates are just demonstrated or listed not used Thus most modules and templates should not categorize in those namespaces Any module or template that is meant for one or more of the namespaces where this module categorizes can use the basic syntax as shown above Advanced usage aekikh This module takes one or more parameters named after the different page types as listed in section namespaces above By using those parameters you can specify exactly in which namespaces your template should categorize Like this p local categoryHandler require Module Category handler main function p main frame local result This is a module meant for articles and talk pages local category categoryHandler main Category Somecat1 Categorize in main article space talk Category Somecat2 Categorize in talk space nocat frame args nocat So nocat true false works category category or Check that we don t have a nil value for the category variable return result category end return p The above module will only categorize in main and talk space But it will not categorize on archive pages since they are blacklisted See section blacklist below And if you need to demonstrate discuss the module on a talkpage then you can feed nocat true to prevent that template from categorizing See section nocat below Like this My new module Hey guys have you seen my new module invoke mymodule main nocat true Nice isn t it Sometimes we want to use the same category in several namespaces then do like this p local categoryHandler require Module Category handler main function p main frame local result This is a module used in several namespaces local category categoryHandler main Category Somecat1 1 Category Somecat2 For help and user space help 1 user 1 talk No categories on talk pages other Category Somecat3 For all other namespaces nocat frame args nocat So nocat true false works category category or Check that we don t have a nil value for the category variable return result category end return p In the above example we use a numbered parameter to feed one of the categories and then we tell this module to use that numbered parameter for both the help and user space The category handler module understands an unlimited number of numbered parameters The other parameter defines what should be used in the remaining namespaces that have not explicitly been fed data Note the empty but defined talk parameter That stops this module from showing what has been fed to the other parameter when in talk space The category handler module also has a parameter called all It works like this p local categoryHandler require Module Category handler main function p main frame local result This is a module used in all namespaces local category categoryHandler all Category Somecat1 Categorize in all namespaces nocat frame args nocat So nocat true false works category category or Check that we don t have a nil value for the category variable return result category end return p The above example will categorize in all namespaces but not on blacklisted pages If you want to demonstrate that module on a page then use nocat true to prevent the template from categorizing We suggest avoiding the all parameter since modules and templates should preferably only categorize in the namespaces they need to The all parameter can also be combined with the rest of the parameters Like this p local categoryHandler require Module Category handler main function p main frame local result This is a module used in all namespaces local category categoryHandler all Category Somecat1 Categorize in all namespaces main Category Somecat2 And add this in main space other Category Somecat3 And add this in all other namespaces nocat frame args nocat So nocat true false works category category or Check that we don t have a nil value for the category variable return result category end return p If the above module is placed on an article then it will add the categories Somecat1 and Somecat2 But on all other types of pages it will instead add Somecat1 and Somecat3 As the example shows the all parameter works independently of the rest of the parameters Subpages aekikh The category handler module understands the subpage parameter Like this p local categoryHandler require Module Category handler main function p main frame local result This is a module used in all namespaces local category categoryHandler subpage no Don t categorize on subpages wikipedia Category Somecat nocat frame args nocat So nocat true false works category category or Check that we don t have a nil value for the category variable return result category end return p If subpage no then this template will not categorize on subpages For the rare occasion you only want to categorize on subpages then use subpage only If subpage is empty or undefined then this template categorizes both on basepages and on subpages Blacklist aekikh This module has a blacklist of the pages and page types where templates should not auto categorize Thus modules that use this meta template will for instance not categorize on archive pages and on the subpages of Wikipedia Template messages If you want a template to categorize on a blacklisted page then feed nocat false to the module when you place it on the page thus skipping the blacklist check Note that this module only categorizes if it has data for the namespace For instance if the basic syntax is used see basic usage above then even if you set nocat false the template will not categorize on a talk page since it has no data for talk pages But it has data for help space so on a blacklisted help page it will categorize The blacklist is located in the configuration table cfg blacklist near the top of the module code The nocat parameter aekikh This module understands the nocat parameter If nocat true then this template does not categorize If nocat is nil then this template categorizes as usual If nocat false this template categorizes even when on blacklisted pages See section blacklist above The nocat parameter also accepts aliases for true and false as defined by Module Yesno e g yes y true and 1 for true and no n false and 0 for false Modules and templates that use category handler should forward nocat so they too understand nocat The code nocat frame args nocat shown in the examples on this page does that The categories parameter aekikh For backwards compatibility this module also understands the categories parameter It works the same as nocat Like this If categories false then this template does not categorize If categories is empty or undefined then this template categorizes as usual If categories true this template categorizes even when on blacklisted pages The categories parameter also accepts aliases for true and false as defined by Module Yesno e g yes y true and 1 for true and no n false and 0 for false The category2 parameter aekikh For backwards compatibility this template kind of supports the old category parameter But the parameter name category is already used in this module to feed category data for when in category space So instead this template uses category2 for the usage similar to nocat Like this If category2 empty but defined or category2 no or if category2 is fed any other data except as described in the next two points then this template does not categorize If category2 is undefined or if category2 then this template categorizes as usual If category2 yes this template categorizes even when on blacklisted pages Categories and text aekikh Besides from categories you can feed anything else to this module for instance some text Like this p local categoryHandler require Module Category handler main function p main frame local result This is a module used on talk pages local category categoryHandler talk Category Somecat other lt p class error gt This module should only be used on talk pages lt p gt nocat frame args nocat So nocat true false works category category or Check that we don t have a nil value for the category variable return result category end return p When the module code above is used on anything other than a talk page it will look like this This is a module used on talk pages This module should only be used on talk pages That text will not show on blacklisted pages so don t use this method to show any important information Feeding nocat true to the template hides the text just as it suppresses any categories The page parameter aekikh For testing and demonstration purposes this module can take a parameter named page Like this p local categoryHandler require Module Category handler main function p main frame local category categoryHandler main Category Some cat talk Category Talk cat nocat frame args nocat So nocat true false works page User talk Example return category end return p In the above code we on purpose left out the brackets around the category names so we see the output on the page No matter on what kind of page the code above is used it will return this Category Talk catThe page parameter makes this module behave exactly as if on that page Even the blacklist works The pagename doesn t have to be an existing page If the page parameter is empty or undefined the name of the current page determines the result You can make it so your module also understands the page parameter That means you can test how your template will categorize on different pages without having to actually edit those pages Then do like this p local categoryHandler require Module Category handler main function p main frame local category categoryHandler main Category Some cat talk Category Talk cat nocat frame args nocat So nocat true false works page frame args page For testing return category end return p Parameters aekikh List of all parameters First positional parameter for default settings subpage no only 1 2 3 all Category Somecat Text main 1 2 3 Category Somecat Text other 1 2 3 Category Somecat Text nocat frame args nocat true false yes no y n true false 1 0 categories frame args categories false true no yes n y false true 0 1 category2 frame args category or no not defined yes page frame args page User Example Note that empty values to the main other parameters have special meaning see examples above The all parameter doesn t understand numbered parameters since there should never be a need for that Exporting to other wikis aekikhThis module can be exported to other wikis by changing the configuration values in the cfg table All the variable values are configurable so after the configuration values have been set there should be no need to alter the main module code Details of each configuration value are included in the module code comments In addition this module requires Module Namespace detect to be available on the local wiki See also aekikh Category handler for using this module with templates rather than Lua modules Wikipedia Category suppression The how to guide Wikipedia WikiProject Category Suppression The WikiProject Wikipedia Namespace Lists all the namespaces ekhathungcak https th wikipedia org w index php title mxdul Category handler doc amp oldid 9423849, wikipedia, วิกิ หนังสือ, หนังสือ, ห้องสมุด,

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