Directly calling an action

Rails
1

Hi,

I have got now ajax to work in my application.

But I have still a small problem :

I have a content - section

…

......

Than I want to call a action which update this section depending on the
data-constellation in the database.
There is no input-field on the page.

It works fine when I create
<%=link_to_remote(“dispatchConstraint”,:update => “cont”,:url =>
{:action => :dispatch, :order_id => @order}) %>

My problem is : I do not want a link on the page. There is no field to
observe and there is no periodic update necessery.

The action is :

def dispatch
if (@order.cont==true)
render :partial => “list”
else
render :partial => “addForm”
end
end

Is there any function to do this ?

What I learned is that the trigger comes from the browser but all
functions I have found need an interaction or is periodically called.

Thanks for any idea

Erhard

2

Erhard Karger wrote:

{:action => :dispatch, :order_id => @order}) %> render :partial => "addForm"

Erhard

Erhard, if you only want to fill the div when the page is initially
rendered, just make dispatch a helper function, and call it inside
the div.

If instead you want to fill the div based on some unstated
browser event, place a call to the remote_function helper inside
a (template-processed) JavaScript function or a tag event property:

http://api.rubyonrails.org/classes/ActionView/Helpers/PrototypeHelper.html#M001635

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3

Hi Thank You a lot.

I took the first aproach and filled the div with a partial initially
with (remote_form_for)

in create I call a format.js with :

file : create.js.rjs
page.replace_html :constraintCont, " "
page.insert_html :bottom, :constraintCont,:partial => “list”, :object =>
@constraint

Now the next step (I’ll do this weekend) is to call the form partial
again.
(I hope it works with an ajax Button)

Erhard

Mark Reginald J. wrote:

Erhard Karger wrote:

{:action => :dispatch, :order_id => @order}) %> render :partial => "addForm"

Erhard

Erhard, if you only want to fill the div when the page is initially
rendered, just make dispatch a helper function, and call it inside
the div.

If instead you want to fill the div based on some unstated
browser event, place a call to the remote_function helper inside
a (template-processed) JavaScript function or a tag event property:

http://api.rubyonrails.org/classes/ActionView/Helpers/PrototypeHelper.html#M001635

–
Rails Wheels - Find Plugins, List & Sell Plugins -
http://railswheels.com