passing parameters into Java method call from javascript velocity Templates

[Maria Gude]

Hi, 

I'm working with velocity for the first time and need to update an Active Objects table from a Macro hosted on a page.  I've read a few posts and found that i need to wrap the Java function in a javascript function in order to get the onclick to work properly in a table.  However, I'm having a little trouble passing in the parameter into the java function. 

I have verified that the Java function works alone outside the Javascript method and that the parameter is getting passed into the Javascript method properly, but not the Java method inside.  

[Velocity Template]

<script language="JavaScript" type="text/javascript">
  function foo(space){
    '${services.update(space)}'
  }
</script>

...

#foreach($space in $list)
  <tr>
  <td id=$space.space >$space.space</td>
  <td>$space.key</td>
  <td><a href="" onclick="foo('$space.space')">Update</a></td>
#end

[Java Class]

@Autowire
private SpaceService spaceService;

public String execute(Map<String, String> map, String s, ConversionContext conversionContext) throws MacroExecutionException {
  Map context = MacroUtils.defaultVelocityContext();
  context.put("list", spaceService.all());
  context.put("services", spaceService);
  return VelocityUtils.getRenderedTemplate("templates/spaceMacro.vm", context);

Any help is appreciated, thank you!