Question

This is on Grails!
This is a very basic thing which apperatnly I am failing to understand.

I have this in my index.gsp

<g:form name="testForm" url="[controller:'test',action:'index']">
   <g:textField name="Input A" value="${Input1}">  </g:textField>
   <g:textField name="Input B" value="${Input2}"> </g:textField> 
</g:form>

I also have this in my TestController class:

class TestController {

    def index = {
        def Input1
        def Input2
    }
}

I want to get the two inputs that the user enters on the webpage and save them to the appropriate fields (Input1, Input2) on the controller.

How do I go about it?

thanks

Answer 1

You can write your form like this:

<g:form name="testForm" controller="test" action="index">
 <g:textField name="Input1" value="${Input1}">  </g:textField>
 <g:textField name="Input2" value="${Input2}"> </g:textField> 
 <g:actionSubmit value="Send to controller"  action="index"/>
</g:form>

Note that in this case,

1. the controller parameter for the g:form tag is not needed, it is used by convention
2. Action may also probably be removed depending on your route (and grails version), but most of the time, this is what you specify to the form so grails knows where to submit
3. Parameters were slightly out of sync “Input A” -> “Input1”

Then in the controller

class TestController {

   def index = {
    def Input1 = params.Input1
    def Input2 = params.Input2
    ["Input1": Input1, "Input2": Input2]
   }
 }

With this, the values will be rendered properly (inside the returned model)