RoutertypeField

RoutertypeField extends Joomla's HiddenField to inject the current J2Commerce SEF router type as the field value. The rendered <input type="hidden"> carries either modern or legacy. Its only purpose is to act as a dependency target for Joomla showon conditions on sibling fields — it stores nothing meaningful and is never read back during form save.

Class Details

Property	Value
Class	RoutertypeField
Namespace	J2Commerce\Component\J2commerce\Administrator\Field
File	administrator/components/com_j2commerce/src/Field/RoutertypeField.php
Extends	Joomla\CMS\Form\Field\HiddenField
Field type string	Routertype
Since	6.0.7

Behavior

getInput() reads ComponentHelper::getParams('com_j2commerce')->get('sef_router', 'modern'), assigns the result to $this->value, then calls parent::getInput(). The rendered output is a standard Joomla hidden input:

<input type="hidden" name="jform[router_type]" id="jform_router_type" value="modern"/>

XML Usage

<form addfieldprefix="J2Commerce\Component\J2commerce\Administrator\Field">
    <fieldset name="routing">
        <!-- The hidden dependency field -->
        <field
            name="router_type"
            type="Routertype"
        />

        <!-- Only shown when legacy router is active -->
        <field
            name="product_list_menu"
            type="Productlistmenu"
            label="COM_J2COMMERCE_FIELD_PRODUCT_LIST_MENU"
            showon="router_type:legacy"
        />

        <!-- Only shown when modern router is active -->
        <field
            name="catid"
            type="RouterModalCategory"
            label="JGLOBAL_CHOOSE_CATEGORY_LABEL"
            showon="router_type:modern"
        />
    </fieldset>
</form>

XML Attributes

Attribute	Required	Description
name	Yes	Field name. Must match the showon reference in sibling fields (e.g. router_type).
type	Yes	Must be Routertype.

No other attributes are used. label is ignored since this is a hidden field.

showon Values

Value	Meaning
modern	Active when sef_router parameter is modern (the default).
legacy	Active when sef_router parameter is legacy.

Usage Notes

• Place this field before any sibling fields that use showon="router_type:...". Joomla evaluates showon by field name, so the hidden field must exist in the rendered form.
• The field does not need to be in the same fieldset as its dependants — showon works across fieldsets in the same form.
• Because the field value is set from component params at render time and is not user-editable, it is immune to tampering via form submission.

Related

• RouterCategoryField — Category field that respects router mode
• RouterModalCategoryField — Modal category field that delegates based on router mode
• ProductlistmenuField — Legacy-only menu item selector, typically shown with showon="router_type:legacy"