Rails - Jul 2005 - Defining a link_to :action => 'new' with a predefined variable

I want to create a link_to create on a child of a parent that  
automatically assigns the id to that field in the DB. Case:

Adding an element to a shot.

I have it so on the shot page it lists the elements currently in a  
shot, with a link to "Create New Element", which is called as such:

<%=link_to ''Create New Element'', :controller =>
''elements'', :action
=> ''new'' %>

How do I define a variable "shot_id" (or element.shot_id) in that  
link_to? I''ve been paging through the Agile book for a few hours with  
no luck...

Thanks in advance.
--

John Athayde
bobo-8WfjrGkLNeNByuSxxbvQtw@public.gmane.org

Meticulous | www.meticulous.com (work)
Rotoscope | www.rotoscope.com (sound: rock band)
Boboroshi & Kynz | www.boboroshiandkynz.com (sound: electronic)
Personal Weblog | www.boboroshi.com (play)

"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."
          - Benjamin Franklin (1706-1790)
                        Reply of the Pennsylvania Assembly to the  
Governor
                                  November 11, 1755



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John Athayde wrote:
> I want to create a link_to create on a child of a parent that 
> automatically assigns the id to that field in the DB. Case:
> 
> Adding an element to a shot. 
> 
> I have it so on the shot page it lists the elements currently in a shot, 
> with a link to "Create New Element", which is called as such:
> 
> <%=link_to ''Create New Element'', :controller =>
''elements'', :action =>
> ''new'' %>
> 
> How do I define a variable "shot_id" (or element.shot_id) in that
> link_to? I''ve been paging through the Agile book for a few hours
with no
> luck...
> 
> Thanks in advance.
> 
Append :id to the end of link_to, as follows.

<%= link_to ''Create new element'', :controller =>
''elements'', :action =>
''new'', :id => @shot.id %>

In your elements new action, you can obtain the id from params[:id]

This, of course, assumes you have a @shot object accessible to your view.

Chris

That worked! Thanks! This is an extrapolation of the line for the  
controller:

@child["parent_id"] = params[:id]

On Jul 27, 2005, at 3:54 AM, Chris Roos wrote:
> John Athayde wrote:
>
>> I want to create a link_to create on a child of a parent that  
>> automatically assigns the id to that field in the DB. Case:
>> Adding an element to a shot. I have it so on the shot page it  
>> lists the elements currently in a shot, with a link to "Create New
>> Element", which is called as such:
>> <%=link_to ''Create New Element'', :controller =>
>> ''elements'', :action => ''new''
%>
>> How do I define a variable "shot_id" (or element.shot_id) in
that
>> link_to? I''ve been paging through the Agile book for a few
hours
>> with no luck...
>> Thanks in advance.
>>
> Append :id to the end of link_to, as follows.
>
> <%= link_to ''Create new element'', :controller =>  
> ''elements'', :action => ''new'', :id
=> @shot.id %>
>
> In your elements new action, you can obtain the id from params[:id]
>
> This, of course, assumes you have a @shot object accessible to your  
> view.
--

John Athayde
bobo-8WfjrGkLNeNByuSxxbvQtw@public.gmane.org

Meticulous | www.meticulous.com (work)
Rotoscope | www.rotoscope.com (sound: rock band)
Boboroshi & Kynz | www.boboroshiandkynz.com (sound: electronic)
Personal Weblog | www.boboroshi.com (play)

"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."
          - Benjamin Franklin (1706-1790)
                        Reply of the Pennsylvania Assembly to the  
Governor
                                  November 11, 1755



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Rails mailing list
Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
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