unless
目的 Purpose
Renders its body conditionally, based on an expression and/or current environment. The tag renders its body unless all of the specified conditions (test and/or environment) are true. Does the opposite of what the if tag does.使用例 Examples
<g:unless test="${name == 'fred'}"> Hello ${name}! </g:unless><g:unless env="production"> debug: $someDebug </g:unless><g:unless env="production" test="${cacheEnabled}"> $cache.getContent('1234') </g:unless>
詳細 Description
属性 Attributes
test- The expression to testenv- An environment name