Sorting collection in groovy

Question

I have code like this in a GSP:

<g:each in="${cifUserInstance.cif?.servicePackage?.transactions?.collect{it.service}}" status="i" var="transaction">

But the resulting data is not sorted; they are displayed randomly. How can I sort the data using the code above?

Answer 1

Try:

<g:each in="${cifUserInstance.cif?.servicePackage?.transactions?.collect{it.service}.sort()}" status="i" var="transaction">

BTW, it's better to prepare all data in controller, and use view's gsp only to show result data

Answer 2

这是黑暗中的一枪，却看不到“交易”和“服务”的模样，但是您可以尝试一下，

<g:each in="${cifUserInstance.cif?.servicePackage?.transactions?.service.sort()}" status="i" var="transaction">