Question

Im developing a webapp that is feeded via a server. Its index presents some shops deals, having all of these deals ann id. In the .gsp, i have this code:

<div id="content">
<g:each in='${promos}' var='promo'>
<div id="up_box"></div>
<div class="deal_container">
    <div class="images_container"><img src="${createLink(action:'showImage',controller:'image',id:promo.fotoPrincipal.id)}" width="120" height="105" />

    </div>

    <g:link controller='promotion' action='openPromo' params="[promoid:promo.id]">

   <div class="oferta">${promo.name}</div>
   </g:link>
    <g:link controller='promotion' action='openPromo' params="[promoid:promo.id]">
    <div class="flecha">
     </div>
    </g:link>


</div>

That means, when I click in one of the links, it will open an url like this:

app/promotion/openPromo/3

In case the deal with the id “3” is clicked. I have a “general” deal details page. I want that page to load always, and fulfill its details dinamically, depending the deal the user clicked. How can I do that?

I don’t know if I have been clear in my explanation, if i haven’t please ask.

Thank you!

Answer 1

Both links will be handled by the openPromo action in the PromotionController and will be passed the id of the promo as promoid.

You can then load the appropriate promo along with any other related offers you want the user to see and give these to the view. Eg:

class PromotionController {

  def openPromo() {
    Promo promo = Promo.get(params.promoid)

    // Load any other relevant data or offers

   render (view:'openPromo', model:[promo:promo, <any other model data here>]
  }
}

You can then use the model data in your gsp.