Module:Wrapper

This module allows a template to pass all its arguments (both named and positional) to a subsequent template, simulating inheritance. It also allows the wrapper template to inject new arguments or override existing ones.

Usage

This module is intended to create wrapper templates such as {{smCharLink}}.

Basic Syntax

{{#invoke:Wrapper|pass
|_target_template_=Character link
|size=20}}

Parameters

• _target_template_ (Required): The exact name of the template you wish to invoke.
• Any other parameter defined in the {{#invoke:}} block will be passed to the target template.

Precedence

If the wrapping template is passed a parameter with the same name, the value in the {{#invoke:}} block will override it. If this behavior is not desired, the following can be used instead to default to a passed argument over the predefined one.

{{#invoke:Wrapper|pass
|_target_template_=Character link
|size={{{size|20}}}
}}

-- Pass through arguments to a subsequent template with ammendments
local p = {}

function p.pass(frame)
    local configArgs = frame.args
    local pipedArgs = frame:getParent().args
    local finalArgs = {}
    
    for k, v in pairs(pipedArgs) do
        finalArgs[k] = v
    end
    
    -- Injected arg are processed later, so they override
    for k, v in pairs(configArgs) do
        if k ~= '_target_template_' then
            finalArgs[k] = v
        end
    end
    
    return frame:expandTemplate{ title = configArgs['_target_template_'], args = finalArgs }
end

return p