gsp parameter passing from controller

Question

how can i pass parameters to a groovy server page via a controller that are not an instance of a domain class ?

May be related to http://stackoverflow.com/q/2063220/6509 – tim_yates Jan 07 '11 at 09:53 — tim_yates, Jan 07 '11 at 09:53

score 22 · Answer 1 · answered Jan 09 '11 at 05:50

You put your parameters into the model object map returned to your GSP, for example:

def index = { def hobbies = ["basketball", "photography"] 
render(view: "index", model: [name: "Maricel", hobbies: hobbies]) }

Then you get those values accessing them by the name you use in your model map, for example:

My name is ${name} and my hobbies are:
<ul>
<g:each in="${hobbies}" var="hobby">
<li>${hobby}</li>
</g:each>
</ul>

That should display the following:

My name is Maricel and my hobbies are:

 - basketball
 - photography

score 8 · Answer 2 · answered Jan 07 '11 at 10:33

The clearest way is probably to return a map from your controller action:

...
def myAction = {
    [myGreeting: "Hello there, squire!"]
}
...

Now you can access that parameter in your GSP page (by default myAction.gsp):

...
<p><%= myGreeting %></p>
...

score 7 · Answer 3 · edited Aug 09 '11 at 07:15

7

You can do it like this :

In the controller:

def myaction = {
    String name = "Tony Danza"
    [name: name]
}

In the gsp page you can view the name like so:

<body>
    My name is ${name}
</body>

edited Aug 09 '11 at 07:15

OverZealous

answered Jan 08 '11 at 10:51

Thando

score 0 · Answer 4 · answered Jan 07 '11 at 10:05

0

You return the parameters in the closure of the controller that has the same name as the gsp.

answered Jan 07 '11 at 10:05

Navi

4 Answers4