How to pre-select a collection_select inside a form_for?

Rails
1

I have a form_for like:

<%= form_for @user, … |f| %>

<%= f.collection_select :friend_type, FriendType.all, :id, :name %>

Now in my new action, I set the friend_type from the querystring, so it
already has a value of e.g. 3 (which is the id).

How can I have this pre-selected when it renders?

2

http://apidock.com/rails/ActionView/Helpers/FormOptionsHelper/collection_select

might help you on this. It seems to depend on what exact objects
you’ve got set up. I’m not too clear on it myself!

-Dave

–
Dave A.: Available Cleared Ruby on Rails Freelancer
(NoVa/DC/Remote) – see www.DaveAronson.com, and blogs at
www.Codosaur.us, www.Dare2XL.com, www.RecruitingRants.com

3

I’m curious what you have as far as relationships in your FriendType
model? Does it belong_to :user?

If so,

<%= f.collection_select(:user_id, FriendType.all, :id, :name, options=
{:prompt => false}, {:class => ‘yourCustomClass’}) %>

Hope that helps you out.

4

thanks I’ll try that tonight.

5

ok figured it out, I had to run seed on my test db.

thanks!

6

Ok I added:

page.html

And my select is actually empty, it has no options! But when running
rails server I can see the select and options (and the dropdown list in
the
browser).

Why is it not rendering using capybara?

My controller for new is:

@account = Account.new

My view page has:

<% form_for … %>

<%= f.label :plan_type%>
<%= f.collection_select :friend_type, FriendType.all, :id, :name, {
:selected => params[:friend_type] } %>

<%end%>

My test looks like:

describe “User pages” do

subject { page }

describe “new” do
before { visit ‘/user/new’ }

describe “with valid information” do
before do
select ‘XXXX’, :from => “user[friend_type]”
fill_in …
…
end

 it "should create a user" do
       expect { click_button "Create"}.to change(User, :count).by(1)
 end

end
end

end

Is this a timing issue?

7

Set the html_options parameter in collection_select to { :selected =>
params[:friend_type] }

On Tuesday, February 28, 2012 7:44:01 PM UTC-8, Gitted wrote:

How can I have this pre-selected when it renders?

On Tuesday, February 28, 2012 7:44:01 PM UTC-8, Gitted wrote:

How can I have this pre-selected when it renders?

On Tuesday, February 28, 2012 7:44:01 PM UTC-8, Gitted wrote:

How can I have this pre-selected when it renders?

On Tuesday, February 28, 2012 7:44:01 PM UTC-8, Gitted wrote:

How can I have this pre-selected when it renders?