Grails indexed parameters

Question

I have a list of Team objects that have an Integer seed property. I want to edit all the teams\' seeds at once, in a single form. I\'m sure

Answer 1

In 2015.... Grails works a little differently now and you may find yourself running into strings rather than the expected sub-maps.I got something to work by doing
something like..

params.nested.each{
               if(!it.getKey().contains('.')){
                 //to get a map rather than a string...    
                  params.nested[it.getKey()];
               }
           };

EDIT: By The Way...

inputs that have the same name, like

  
  < input name="item.choice" type="checkbox" value="4"/>

Are put into a List IF more then one are submitted. So if both of the above were checked

   
   < input name="item.choice" type="checkbox" value="4" checked/>

You would get a list.

But if only one is checked you do NOT get a List(at least in grails verison I use), you get a single value.

     
     < input name="item.choice" type="checkbox" value="4" />

That means in a controller, if I were to do something like

  params['item.choice'].each{
          def item=Item.get(it)
  }

It would throw an error if only one item was submitted. One groovy way to get around this is

 ([]+(params['item.choice']?:[])).each{
         def item=Item.get(it)
 } 

If the parameter is set and not a list, it puts the value into the empty list; If the parameter is set and a list, the plus operator will add all the individual values to the empty list; if the parameter is not set, it will add two empty lists together, which creates a single empty list.