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Package

ViewHelpers

ViewHelper Documentation

v:unless

Unless

The opposite of f:if and only supporting negative matching. Related to v:or but allows more complex conditions.

Is the same as writing:

<f:if condition="{theThingToCheck}">
    <f:else>
        The thing that gets done
    </f:else>
</f:if>

Except without the f:else.

Example, tag mode

<v:unless condition="{somethingRequired}">
    Warning! Something required was not present.
</v:unless>

Example, inline mode illustrating v:or likeness

{defaultText -> v:unless(condition: originalText)}
    // which is much the same as...
{originalText -> v:or(alternative: defaultText}
    // ...but the "unless" counterpart supports anything as
    // condition instead of only checking "is content empty?"

Arguments

then anySimpleType, required

Value to be returned if the condition if met.

condition boolean, required

Condition expression conforming to Fluid boolean rules

ViewHelper Resources

Schema Resources