Attach an action to a partial?

Is it possible to render a partial with an action attached to it, just
like the regular views? Or should I just call the action which renders
the partial?

Aldric Giacomoni wrote:

Is it possible to render a partial with an action attached to it, just
like the regular views? Or should I just call the action which renders
the partial?

Uh...what? How does any view, partial or not, have an action attached?
What in the world do you mean?

Best,

Like a tile controller from the java world I would suppose.

Essentially a block of code in an .rb file that gets executed every time the partial is rendered.

I don’t think you can do that? Can you?

Marnen Laibow-Koser wrote:

Aldric Giacomoni wrote:

Is it possible to render a partial with an action attached to it, just
like the regular views? Or should I just call the action which renders
the partial?

Uh...what? How does any view, partial or not, have an action attached?
What in the world do you mean?

http://localhost:3000/Users/index

That's a view, right?
In the controller, there's "def index [...] end", right? That's an
action, right?

So when you go to "index", Rails calls the Ruby method "index" in the
appropriate controller, doesn't it?

Aldric Giacomoni wrote:

Marnen Laibow-Koser wrote:

Aldric Giacomoni wrote:

Is it possible to render a partial with an action attached to it, just
like the regular views? Or should I just call the action which renders
the partial?

Uh...what? How does any view, partial or not, have an action attached?
What in the world do you mean?

http://localhost:3000/Users/index

That's a view, right?

No. That's a URL. The view would be app/views/users/index.html.haml or
some such.

In the controller, there's "def index [...] end", right? That's an
action, right?

Right.

So when you go to "index", Rails calls the Ruby method "index" in the
appropriate controller, doesn't it?

Assuming standard routing, yes.

This does not make your original question any more comprehensible. :slight_smile:

Best,

James Englert wrote:

Like a tile controller from the java world I would suppose.

Essentially a block of code in an .rb file that gets executed every time
the
partial is rendered.

I don't think you can do that? Can you?

Of course you can. What do you think a helper is? Or a component?

On Fri, Jan 15, 2010 at 9:00 AM, Marnen Laibow-Koser

Best,

Marnen Laibow-Koser wrote:

Aldric Giacomoni wrote:

Is it possible to render a partial with an action attached to it, just
like the regular views? Or should I just call the action which renders
the partial?

Uh...what? How does any view, partial or not, have an action attached?
What in the world do you mean?

http://localhost:3000/Users/index

That's a view, right?

No, it is a URL

In the controller, there's "def index [...] end", right? That's an
action, right?

So when you go to "index", Rails calls the Ruby method "index" in the
appropriate controller, doesn't it?

You have it the wrong way round, clicking on the URI causes the index
action to be performed, then that causes a view to be rendered.

Colin

Well yes… That’s not really quite the same though…

you can render a partial in your action, or you can render your actions view and render a partial in it.

http://api.rubyonrails.org/classes/ActionController/Base.html#M000658

What can you tell me about the Tile thing?

[Please quote when replying. This is a mailing list, not just a Web
forum.]

James Englert wrote:

Well yes... That's not really quite the same though...

On Fri, Jan 15, 2010 at 9:14 AM, Marnen Laibow-Koser

Where do you see the difference? You were asking about a block of Ruby
code that is executed each time the view is rendered. That is *exactly*
what a helper is.

Best,

Maybe I’m misunderstanding you. Your talking about putting a helper in a view, right?

So

<%= my_helper %>

would be the code?

James Englert wrote:

Maybe I'm misunderstanding you. Your talking about putting a helper in
a
view, right?

So

<%= my_helper %>

would be the code?

Well, it would call FooHelper#my_helper, which would contain the code.

On Fri, Jan 15, 2010 at 9:25 AM, Marnen Laibow-Koser

Best,

Yeah. I got you. I guess the difference is really pretty trivial.

With a “partial controller”, you would define your code like this (made up code incoming):

<%= render_partial ‘some_partial’, :controller => ‘SomeClass’ %>

Rails would then call a method on SomeClass before it renders the partial. This would allow you to put some logic in SomeClass without adding any code to the view itself.

The difference is simply semantic and not that important… Just trying to offer some understanding to the original question =]

Marnen Laibow-Koser wrote:

Aldric Giacomoni wrote:

Marnen Laibow-Koser wrote:

So when you go to "index", Rails calls the Ruby method "index" in the
appropriate controller, doesn't it?

Assuming standard routing, yes.

This does not make your original question any more comprehensible. :slight_smile:

When I go to the URI : http://localhost:3000/Ultrasounds/index
I query a database for a list of ultrasounds and display that list under
a button called "Fix ultrasounds".
When I click that button, I want it to run the attached method, which it
does, and I want that list to be re-queried and re-displayed.

So, should I:
1) have this list displayed in a partial
2) the view set up with a div
3) in the "index" method, call the method which does the query, then
renders the partial in that div
4) when the button is clicked, re-call the method which does the query
and renders the partial in that div

?