ui:fileUploadDeleteCheckbox

Renders a checkbox that deletes an already uploaded file when the form is submitted.

<ui:form.root action="update" objectName="conference" object="{conference}">
    <ui:field.root name="logo">
        <f:if condition="{conference.logo}">
            <label>
                <ui:fileUploadDeleteCheckbox fileReference="{conference.logo}" />
                Delete current logo
            </label>
        </f:if>
        <ui:fileUpload.root name="logo">
            <!-- ... -->
        </ui:fileUpload.root>
    </ui:field.root>
</ui:form.root>

It complements the FileUpload primitive, which handles files picked in the browser, for a FileReference that is already stored. The checkbox carries the same signed @delete value as TYPO3's <f:form.uploadDeleteCheckbox>.

Place it inside a ui:form.root whose objectName matches the name of the action argument, otherwise it throws an exception. property names the model property the file reference belongs to. Inside a ui:field.root it defaults to the name of the field.