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Using the only Attribute to Limit the Namespace

The only attribute, unique to the dtml-with tag, prunes the enclosing namespaces when rendering the body of the tag. This is advantageous to prevent acquisition within DTML:

<dtml-with REQUEST only>
<dtml-unless id>
An id was not specified.



Without the only attribute, the above DTML would likely get an id value from the enclosing environment, which, in this example, is unwanted.


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