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Skave Rat

2008-Jul-02 22:24 UTC

Rendering action into div

Is there a way to render an action into a div?

i.e.:
I click on a link_to_remote link, and the content of an action is put
into an <div>
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Phil Calder

2008-Jul-02 23:10 UTC

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Re: Rendering action into div

Get your action to:
render :text => ''Hello world''

In your page:
link_to_remote(''Some Text'', :update =>
"my_div_id", :url => {:action =>
"my_action"})

Make sure your page has a <div id="my_div_id"></div>

2008/7/3 Skave Rat
<rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>:
>
> Is there a way to render an action into a div?
>
> i.e.:
> I click on a link_to_remote link, and the content of an action is put
> into an <div>
> --
> Posted via http://www.ruby-forum.com/.
>
> >
>

-- 
----------------------------------------
Phil Calder
philcalder-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
----------------------------------------

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Phillip Koebbe

2008-Jul-02 23:59 UTC

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Re: Rendering action into div

Skave Rat wrote:> Is there a way to render an action into a div?
> 
> i.e.:
> I click on a link_to_remote link, and the content of an action is put
> into an <div>
Yes. You''re interested in RJS. You can do it a few ways. One is to 
provide the element to update in the call itself, which means you will 
just do a render in the controller. Another is to use render :update in 
the controller and specify which element gets updated. You can also use 
rjs partials so the updating code is not cluttering up your controller.

Peace,
Phillip
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Skave Rat

2008-Jul-03 00:01 UTC

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Re: Rendering action into div

Phillip Koebbe wrote:> Skave Rat wrote:
>> Is there a way to render an action into a div?
>> 
>> i.e.:
>> I click on a link_to_remote link, and the content of an action is put
>> into an <div>
> 
> Yes. You''re interested in RJS. You can do it a few ways. One is to
> provide the element to update in the call itself, which means you will 
> just do a render in the controller. Another is to use render :update in 
> the controller and specify which element gets updated. You can also use 
> rjs partials so the updating code is not cluttering up your controller.
> 
> Peace,
> Phillip
I tried RJS and :update, but it didn''t really workt. could you provide 
me a small example?
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Phillip Koebbe

2008-Jul-03 02:18 UTC

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Re: Rendering action into div

Skave Rat wrote:> 
> I tried RJS and :update, but it didn''t really workt. could you
provide
> me a small example?
Sure.

app/controllers/time_controller.rb

class TimeController < ApplicationController
  def index
  end

  def now
    render :update do |page|
      page.replace_html :current_time, Time.now
    end
  end
end

app/views/time/index.html.erb

<%= link_to_remote ''Current Time'', :url => {:controller
=> :time,
:action => :now} %>

<div id="current_time">
</div>

Run script/server, navigate to http://localhost:3000/time, and click the 
Current Time link. You should see the current time appear right below 
the link. Click it again and you should see the time refresh.

If the code gets  munged, I''ll post again with something that will not 
be technically correct but will hopefully be useful.

Peace,
Phillip
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Skave Rat

2008-Jul-03 02:24 UTC

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Re: Rendering action into div

Phillip Koebbe wrote:> Skave Rat wrote:
>> 
>> I tried RJS and :update, but it didn''t really workt. could you
provide
>> me a small example?
> 
> Sure.
> 
> app/controllers/time_controller.rb
> 
> class TimeController < ApplicationController
>   def index
>   end
> 
>   def now
>     render :update do |page|
>       page.replace_html :current_time, Time.now
>     end
>   end
> end
> 
> app/views/time/index.html.erb
> 
> <%= link_to_remote ''Current Time'', :url =>
{:controller => :time,
> :action => :now} %>
> 
> <div id="current_time">
> </div>
> 
> Run script/server, navigate to http://localhost:3000/time, and click the 
> Current Time link. You should see the current time appear right below 
> the link. Click it again and you should see the time refresh.
> 
> If the code gets  munged, I''ll post again with something that will
not
> be technically correct but will hopefully be useful.
> 
> Peace,
> Phillip
well, that''s nothing new to me. My problem is rendering a view or HTML 
template into a div. i.e.:
you have following in your opened page:
<div id="div1"></div>

and I want to add this snippet into it:

<h1>Hello @User.id</h1>
<p>Lorem ipsum dolor sit amet...</p>


is that possible?
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Phillip Koebbe

2008-Jul-03 02:26 UTC

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Re: Rendering action into div

The other way to do it (specifying the element to update in the call) 
would be done like this:

app/controllers/time_controller.rb

def now
  render :text => Time.now.to_s
end

Note that render :text can also be render :inline. They both seem to 
have the same result, but I don''t know if the implementation of one is 
better than the other.

app/views/time/index.html.erb

<%= link_to_remote ''Current Time'', :url => {:controller
=> :time,
:action => :now}, :update => :current_time %>

<div id="current_time">
</div>

I''m not really sure why, but I prefer the render :update method. You
can
also render partials:

render :partial => ''path/to/partial''

or

render :update do |page|
  page.replace_html :element_to_update, :partial =>
''path/to/partial''
end

And of course, you can use all of the normal caveats of partials 
(:collection, :object, :locals, :layout => false, etc).

Peace,
Phillip
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Phillip Koebbe

2008-Jul-03 02:36 UTC

head link

Re: Rendering action into div

> 
> well, that''s nothing new to me.
Hm. Okay. Sorry I insulted your intelligence. You asked for a small 
example. I showed you one.
> My problem is rendering a view or HTML 
> template into a div. i.e.:
> you have following in your opened page:
> <div id="div1"></div>
> 
> and I want to add this snippet into it:
> 
> <h1>Hello @User.id</h1>
> <p>Lorem ipsum dolor sit amet...</p>
> 
> 
> is that possible?
Yes. I posted another message that indicated you can use partials. As 
far as I know, you cannot use a standard view. It must be a partial. I 
might be wrong in that, though. The AJAX call will be the same (and you 
can pass parameters if you need to), and in the controller action, do 
whatever you need to, and render a partial.

I do this in a situation in which I''m editing a resource. Suppose I
have
a widget that I want to edit, I might have a form that looks like

<% @widgets.each do |widget| %>
<%= widget.name %> link_to_remote ''(Edit)'', :controller
=> :widgets,
:action => :edit, :id => widget.id %>
<%= "<div id=''widget_#{widget.id}''>" %>
</div>
<% end %>

Then in the controller

def edit
  widget = Widget.find_by_id(params[:id])
  render :update do |page|
    page.replace_html "widget_#{widget.id}", :partial =>
''widget'',
:object => widget
  end
end

Does that help?

Peace,
Phillip
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\"Wolas!\"

2008-Jul-03 07:39 UTC

head link

Re: Rendering action into div

It helps me!!

On Jul 3, 3:36 am, Phillip Koebbe
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:> > well, that''s nothing new to me.
>
> Hm. Okay. Sorry I insulted your intelligence. You asked for a small
> example. I showed you one.
>
> > My problem is rendering a view or HTML
> > template into a div. i.e.:
> > you have following in your opened page:
> > <div id="div1"></div>
>
> > and I want to add this snippet into it:
>
> > <h1>Hello @User.id</h1>
> > <p>Lorem ipsum dolor sit amet...</p>
>
> > is that possible?
>
> Yes. I posted another message that indicated you can use partials. As
> far as I know, you cannot use a standard view. It must be a partial. I
> might be wrong in that, though. The AJAX call will be the same (and you
> can pass parameters if you need to), and in the controller action, do
> whatever you need to, and render a partial.
>
> I do this in a situation in which I''m editing a resource. Suppose
I have
> a widget that I want to edit, I might have a form that looks like
>
> <% @widgets.each do |widget| %>
> <%= widget.name %> link_to_remote ''(Edit)'',
:controller => :widgets,
> :action => :edit, :id => widget.id %>
> <%= "<div id=''widget_#{widget.id}''>"
%>
> </div>
> <% end %>
>
> Then in the controller
>
> def edit
>   widget = Widget.find_by_id(params[:id])
>   render :update do |page|
>     page.replace_html "widget_#{widget.id}", :partial =>
''widget'',
> :object => widget
>   end
> end
>
> Does that help?
>
> Peace,
> Phillip
> --
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JON

2008-Jul-03 11:53 UTC

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Re: Rendering action into div

Which one is better making an RJS or using

def edit
  widget = Widget.find_by_id(params[:id])
  render :update do |page|
    page.replace_html "widget_#{widget.id}", :partial =>
''widget'',
:object => widget
  end
end


I always prefer RJS , because it makes debugging easier and my
controller a bit less clustered.
Check the API about RJS you will get many examples and all other help
needed.

-----------

On Jul 3, 4:10 am, "Phil Calder"
<philcal...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> Get your action to:
> render :text => ''Hello world''
>
> In your page:
> link_to_remote(''Some Text'', :update =>
"my_div_id", :url => {:action =>
> "my_action"})
>
> Make sure your page has a <div id="my_div_id"></div>
>
> 2008/7/3 Skave Rat
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>:
>
>
>
> > Is there a way to render an action into a div?
>
> > i.e.:
> > I click on a link_to_remote link, and the content of an action is put
> > into an <div>
> > --
> > Posted viahttp://www.ruby-forum.com/.
>
> --
> ----------------------------------------
> Phil Calder
> philcal...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
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Phillip Koebbe

2008-Jul-03 12:29 UTC

head link

Re: Rendering action into div

Web Blogger wrote:> Which one is better making an RJS or using
> 
> def edit
>   widget = Widget.find_by_id(params[:id])
>   render :update do |page|
>     page.replace_html "widget_#{widget.id}", :partial =>
''widget'',
> :object => widget
>   end
> end
> 
As I understand it, this *is* RJS, just not using an RJS template, such 
as

edit.js.erb
> 
> I always prefer RJS , because it makes debugging easier 
That, I believe, is a personal opinion. 90-some-odd percent of my 
debugging happens in controllers, and I like to have related code handy. 
I often make some decisions inside the render :update block, and it''s 
easier _for me_ to have it in the controller.
> and my
> controller a bit less clustered.
It depends on a lot of things. I often grow weary of bouncing around 
from file to file, as I tend to use a lot of view partials. When I have 
one or two lines of code to respond to an ajax call, it doesn''t bother 
me to have it in the controller.

I know there are _best practices_, but at the end of the day, I have to 
get work done and be happy doing it. No two programmers are exactly 
alike, and one of the things I like about Rails is that it allows a 
certain something-or-other to be done in a variety of ways, but still 
with programmer happiness in mind.

Peace,
Phillip
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Rails - Jul 2008 - Rendering action into div

Rendering action into div

Re: Rendering action into div

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