Modul:Error

This meta template returns a state of error (recognized as such by a wiki parser function), and optionally an error-message text in red (visible for the user). It is used by other templates to signal an error, for example invalid input, which can then either be displayed to the editor or caught and handled by other templates.

Usage

• {{error|An exemplary error}} →
• {{error|message=An exemplary error}} →
• Compare, used in a Parser Function: {{#expr:Foo}} →
• {{#iferror:{{error|Foo}} | {{y}} | {{n}} }} → Cèṭa'an:Y

Tag option

The tag to contain the error message can be given through the tag parameter, but it will only accept span, div, p, and strong, since those are the only tags recognized by the {{#iferror}} parser function. It defaults to strong, the tag generated e.g. by {{#expr}}. To prevent strong message, use one of the other tags, e.g. tag=span.

• ABC {{error|An exemplary error demo no tag (default)}} XYZ → ABC XYZ
• ABC {{error|An exemplary error demo span|tag=span}} XYZ → ABC XYZ
• ABC {{error|An exemplary error demo div|tag=div}} XYZ → ABC XYZ
• ABC {{error|An exemplary error demo p|tag=p}} XYZ → ABC XYZ
• ABC {{error|An exemplary error demo strong|tag=strong}} XYZ → ABC XYZ

TemplateData

This is the TemplateData for this template used by TemplateWizard, VisualEditor and other tools. See a monthly parameter usage report for Template:Error in articles based on its TemplateData.

TemplateData for Error

The template returns a state of error (recognized as such by a wiki parser function), and optionally an error-message text in red (visible for the user)

Parameter templat

Parameter		Keterangan	Jenis	Status
Message	1 message	Error message text in red	Kata	disarankan
Tag	tag	The tag to contain the error message; will only accept span, div, p, and strong, since those are the only tags recognized by the #iferror parser function. It defaults to strong, the tag generated e.g. by #expre Nilai yang disarankan span div p strong Baku strong	Kata	opsional

See also

• {{Error-small}}
• {{Formatting error}}
• #iferror: parser function

---

-- This module implements {{error}}.

local p = {}

local function _error(args)
    local tag = mw.ustring.lower(tostring(args.tag))

    -- Work out what html tag we should use.
    if not (tag == 'p' or tag == 'span' or tag == 'div') then
        tag = 'strong'
    end

    -- Generate the html.
    return tostring(mw.html.create(tag)
        :addClass('error')
        :wikitext(tostring(args.message or args[1] or error('no message specified', 2)))
    )
end

function p.error(frame)
    local args
    if type(frame.args) == 'table' then
        -- We're being called via #invoke. The args are passed through to the module
        -- from the template page, so use the args that were passed into the template.
        args = frame.args
    else
        -- We're being called from another module or from the debug console, so assume
        -- the args are passed in directly.
        args = frame
    end
    -- if the message parameter is present but blank, change it to nil so that Lua will
    -- consider it false.
    if args.message == "" then
        args.message = nil
    end
    return _error(args)
end

return p