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Alan Smith

2008-Mar-08 05:09 UTC

How to do a new with prefilled info?

In my example, I have a topic that I want to have a link next to to
create a new child.

So my erb, says something like:
<%= link_to ''New Child'', { :action =>
"newChild", id => topic.id } %>

However, the routing doesn''t like it because it thinks
topics/newChild
is asking for a specific topic and it can''t find one with an id of
"newChild"

What I want is the same form as I get from "New Topic" at bottom of
the page but with the parent already pre-filled with the id I send it.

Is there a better way to do this?

Thanks in advance,

Alan

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AndyV

2008-Mar-08 20:18 UTC

head link

Re: How to do a new with prefilled info?

In routes.rb:

map.resources :topics do |topic|
  topic.resources :comments
end

With that you should be able to use this in your view:

<%= link_to "Add Comment", new_topic_comment_path(@topic) %>

In your controller:

def new
  @topic = Topic.find(params[:topic_id])
  @comment = @topic.comments.build
end


Every request sent to the CommentsController will get the topic_id so
you can do nice things like listing all the comments for a particular
topic, etc.

On Mar 8, 12:09 am, "Alan Smith"
<alan0...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> In my example, I have a topic that I want to have a link next to to
> create a new child.
>
> So my erb, says something like:
> <%= link_to ''New Child'', { :action =>
"newChild", id => topic.id } %>
>
> However, the routing doesn''t like it because it thinks
> topics/newChild
> is asking for a specific topic and it can''t find one with an id of
"newChild"
>
> What I want is the same form as I get from "New Topic" at bottom
of
> the page but with the parent already pre-filled with the id I send it.
>
> Is there a better way to do this?
>
> Thanks in advance,
>
> Alan--~--~---------~--~----~------------~-------~--~----~
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Alan Smith

2008-Mar-16 02:30 UTC

head link

Re: How to do a new with prefilled info?

Maybe this is answering my question, but it doesn''t seem to work.
What I want is to create a child that is also a topic (ie, a subtopic)

I tried:
map.resources :topices do |topic|
   topic.resources :topics
end

and putting:
new_topic_topic_path(@topic)

That gave me a "NoMethod error"

Any suggestions?

Thanks in advance,

alan


On Sat, Mar 8, 2008 at 3:18 PM, AndyV
<arv7-HmMyXyqgL2CVc3sceRu5cw@public.gmane.org>
wrote:>
>  In routes.rb:
>
>  map.resources :topics do |topic|
>   topic.resources :comments
>  end
>
>  With that you should be able to use this in your view:
>
>  <%= link_to "Add Comment", new_topic_comment_path(@topic)
%>
>
>  In your controller:
>
>  def new
>   @topic = Topic.find(params[:topic_id])
>   @comment = @topic.comments.build
>  end
>
>
>  Every request sent to the CommentsController will get the topic_id so
>  you can do nice things like listing all the comments for a particular
>  topic, etc.
>
>
>
>  On Mar 8, 12:09 am, "Alan Smith"
<alan0...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>  > In my example, I have a topic that I want to have a link next to to
>  > create a new child.
>  >
>  > So my erb, says something like:
>  > <%= link_to ''New Child'', { :action =>
"newChild", id => topic.id } %>
>  >
>  > However, the routing doesn''t like it because it thinks
>  > topics/newChild
>  > is asking for a specific topic and it can''t find one with an
id of "newChild"
>  >
>  > What I want is the same form as I get from "New Topic" at
bottom of
>  > the page but with the parent already pre-filled with the id I send
it.
>  >
>  > Is there a better way to do this?
>  >
>  > Thanks in advance,
>  >
>  > Alan
>  >
>
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Bcp

2008-Mar-16 06:08 UTC

head link

Re: How to do a new with prefilled info?

Watch the nested resources screencast on my site.

Http://www.rubyplus.org
Free Ruby & Rails screencasts


On Mar 15, 2008, at 7:30 PM, "Alan Smith"
<alan0412-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> Maybe this is answering my question, but it doesn''t seem to work.
> What I want is to create a child that is also a topic (ie, a subtopic)
>
> I tried:
> map.resources :topices do |topic|
>   topic.resources :topics
> end
>
> and putting:
> new_topic_topic_path(@topic)
>
> That gave me a "NoMethod error"
>
> Any suggestions?
>
> Thanks in advance,
>
> alan
>
>
> On Sat, Mar 8, 2008 at 3:18 PM, AndyV
<arv7-HmMyXyqgL2CVc3sceRu5cw@public.gmane.org> wrote:
>>
>> In routes.rb:
>>
>> map.resources :topics do |topic|
>>  topic.resources :comments
>> end
>>
>> With that you should be able to use this in your view:
>>
>> <%= link_to "Add Comment", new_topic_comment_path(@topic)
%>
>>
>> In your controller:
>>
>> def new
>>  @topic = Topic.find(params[:topic_id])
>>  @comment = @topic.comments.build
>> end
>>
>>
>> Every request sent to the CommentsController will get the topic_id so
>> you can do nice things like listing all the comments for a particular
>> topic, etc.
>>
>>
>>
>> On Mar 8, 12:09 am, "Alan Smith"
<alan0...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>> In my example, I have a topic that I want to have a link next to to
>>> create a new child.
>>>
>>> So my erb, says something like:
>>> <%= link_to ''New Child'', { :action =>
"newChild", id => topic.id }
>>> %>
>>>
>>> However, the routing doesn''t like it because it thinks
>>> topics/newChild
>>> is asking for a specific topic and it can''t find one with
an id of
>>> "newChild"
>>>
>>> What I want is the same form as I get from "New Topic" at
bottom of
>>> the page but with the parent already pre-filled with the id I send
>>> it.
>>>
>>> Is there a better way to do this?
>>>
>>> Thanks in advance,
>>>
>>> Alan
>>>
>>
>
> >
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AndyV

2008-Mar-17 12:50 UTC

head link

Re: How to do a new with prefilled info?

You may want to consider introducing a new controller (Subtopics) that
specifically deals with "topics that have parent topics".  You can
still use the same model for state/persistence but you will greatly
simplify your controller and view code by giving it a single focus.
With that in mind:

map.resources :topics do |topic|
  topic.resources :subtopics
end

class TopicsController < ApplicationController
  def index
    @topics = Topic.find(:all, :order=>:name, ...)
    ...
  end
  ...
end

class SubtopicsController < ApplicationController
  def index
    @topic.find(:all, :order=>:name)
    @subtopics = @topic.children
    ...
  end
end

This assumes a model that uses acts_as_tree or a similar data model
for connecting ''parent'' topics with ''child''
subtopics.

On Mar 15, 10:30 pm, "Alan Smith"
<alan0...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> Maybe this is answering my question, but it doesn''t seem to work.
> What I want is to create a child that is also a topic (ie, a subtopic)
>
> I tried:
> map.resources :topices do |topic|
>    topic.resources :topics
> end
>
> and putting:
> new_topic_topic_path(@topic)
>
> That gave me a "NoMethod error"
>
> Any suggestions?
>
> Thanks in advance,
>
> alan
>
> On Sat, Mar 8, 2008 at 3:18 PM, AndyV
<a...-HmMyXyqgL2CVc3sceRu5cw@public.gmane.org> wrote:
>
> >  In routes.rb:
>
> >  map.resources :topics do |topic|
> >   topic.resources :comments
> >  end
>
> >  With that you should be able to use this in your view:
>
> >  <%= link_to "Add Comment",
new_topic_comment_path(@topic) %>
>
> >  In your controller:
>
> >  def new
> >   @topic = Topic.find(params[:topic_id])
> >   @comment = @topic.comments.build
> >  end
>
> >  Every request sent to the CommentsController will get the topic_id so
> >  you can do nice things like listing all the comments for a particular
> >  topic, etc.
>
> >  On Mar 8, 12:09 am, "Alan Smith"
<alan0...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >  > In my example, I have a topic that I want to have a link next to
to
> >  > create a new child.
>
> >  > So my erb, says something like:
> >  > <%= link_to ''New Child'', { :action =>
"newChild", id => topic.id } %>
>
> >  > However, the routing doesn''t like it because it thinks
> >  > topics/newChild
> >  > is asking for a specific topic and it can''t find one
with an id of "newChild"
>
> >  > What I want is the same form as I get from "New Topic"
at bottom of
> >  > the page but with the parent already pre-filled with the id I
send it.
>
> >  > Is there a better way to do this?
>
> >  > Thanks in advance,
>
> >  > Alan--~--~---------~--~----~------------~-------~--~----~
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Rails - Mar 2008 - How to do a new with prefilled info?

How to do a new with prefilled info?

Re: How to do a new with prefilled info?

Re: How to do a new with prefilled info?

Re: How to do a new with prefilled info?

Re: How to do a new with prefilled info?