On Apr 23, 2009, at 1:02 PM, big poppa wrote:
> I apologize for the embarrassingly simplistic nature of this question,
> but I'm new to Ruby/Rails.
>
> From within a html.erb file, what is the syntax for assigning a value
> to a parameter? For example, when a specific form is used, the
> following attribute (make_this_true) should always be 1
>
> <% form_for(@foo) do |f| %>
> <%= f.error_messages %>
> ...
> <%= f.label :make_this_true %><br />
> <% foo.make_this_true = 1 %>
>
> but I don't have to tell the readers of this group that the above code
> is garbage.
>
> 1. is there an easy way to set this attribute? If so, what is the
> syntax?
> 2. My first attempt at solving this problem involved using a check box
> or a radio button that defaulted to "true" but this turned out to be
> non-intuitive as well. I then realized that the user should not need
> to interact with this variable here.
> 3. Perhaps making the default value of this variable true in the
> database schema? Any tips on that route?
>
> Sorry for the long-windedness and simplistic nature of this question.
>
> --b
In your controller:
new:
@foo = Foo.new(:make_this_true => true)
new.html.erb
<%= f.hidden :make_this_true %>
or, create:
@foo = Foo.new(params[:foo]) {|f| f.make_this_true = true }
Having a default in the DB schema is likely a good idea,too. If this
is actually a boolean, having :default=>true,:null=>false keeps you
from dealing with NULL values in the database.
-Rob
Rob Biedenharn http://agileconsultingllc.com
[email protected]
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