<g:if test="..."> ... </g:if> <g:elseif test="..."> ... </g:elseif>は問題ないのですが、 <g:if test="..."> ... </g:if> <g:elseif test="..."> ... </g:elseif>は org.codehaus.groovy.grails.web.taglib.exceptions.GrailsTagException: Tag [elseif] cannot have non-whitespace characters directly preceding …