Creating a simple drop-down list

rubyonrails-talk
1

Hey folks,

I'm having major issues trying to complete a simple task.

Goal: Create a drop-down list and populate it with states. When the user fills out the form and saves, the state selected should be saved with the record.

Problem: When trying to save the record I get the following error:

You have a nil object when you didn't expect it! You might have expected an instance of Array. The error occured while evaluating nil.inject

And it points to this line in my .rthml:

<%= select_tag 'state', options_for_select(@states) %>

And here is my controller code in the 'new' method:

def new     @client = Client.new     @states = %w{-select- AL AK AZ AR CA CO CT DE DC FL GA HI ID IL IN IA KS KY                  LA ME MH MD MA MI MN MS MO MT NE NV NH NJ NM NY NC ND OH OK                  OR PA RI SC SD TN TX UT VT VI VA WA WV WI WY}   end

The list populates fine with states, but bombs when I try to save. Please help.

Thanks.

2

longint wrote:

Hey folks,

I'm having major issues trying to complete a simple task.

Goal: Create a drop-down list and populate it with states. When the user fills out the form and saves, the state selected should be saved with the record.   

snip...

and the save code looks like?

3

I had created a static scaffold, so this is what Rails' produced:

def create     @client = Client.new(params[:client])     if @client.save       flash[:notice] = 'Client was successfully created.'       redirect_to :action => 'list'     else       render :action => 'new'     end   end

4

in your model, is state just a string?

longint wrote:

5

Yeah, state is a string in my model.

6

your html from the select is just state period. not state that is part of client.

this:


<%= select_tag 'state', options_for_select(@states) %>
just creates
<select id="state" name="state">
... options ...
</select>

for that scaffold code to work you want

off the top of my head, you could use select…

<%= select ‘client’, ‘state’, @states.collect{ |s| [ s, s ] } %>

but that shouldnt be were that nil inject error is coming from.

are you sure the error is in your create method and not in either

the redirect on the on the re-rendering?

longint wrote: