grails - 我们可以在 g :select optionValue? 中有多个字段吗

Question

有没有办法在 optionValue 中显示多个字段名称？

<g:select name="id" from="${Books.list()}" optionKey="id"
          value="" optionValue="name"
          noSelection="${['null':'Select Publisher...']}"/>

经验:

<g:select name="id" from="${Books.list()}" optionKey="id"
          value="" optionValue="name and author"
          noSelection="${['null':'Select Publisher...']}"/>

Answer 1

如果您不想修改域类，则可以为选项值传递闭包:

<g:select name="id" from="${Books.list()}" optionKey="id"
          value="" optionValue="${{it.name +' '+it.author}}"
          noSelection="${['null':'Select Publisher...']}"/>