The string is nil. I even created a new rails project to test this
out.
(Rails 3 / 1.9.2)
rails generate scaffold test value1:string value2:integer
app/models/test.rb
class Test < ActiveRecord::Base
def value1
read_attribute(:value1).nil? ? 'hello' : read_attribute(:value1)
end
def value2
read_attribute(:value2).nil? ? 3 : read_attribute(:value2)
end
end
app/views/tests/_form.html.erb
<%= form_for(@test) do |f| %>
value 1 is <%= @test.value1.inspect %> and value 2 is <%=
@test.value2.inspect %>
<div class="field">
<%= f.label :value1 %><br />
<%= f.text_field :value1 %>
</div>
<div class="field">
<%= f.label :value2 %><br />
<%= f.select :value2, (1..10) %>
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
At the top of the form we see
value 1 is "hello" and value 2 is 3
the select statement has 3 selected but the text field has nothing.
Adding ':value => @test.value1' fixes the issue but shouldn't be
necessary AFAIK
<%= f.text_field :value1, :value => @test.value1 %>
On Feb 11, 10:00 am, Jim Ruther Nill <jvn...@gmail.com> wrote:
> are you sure that heading is nil? could you double check if it's not an
> empty string?
>
> On Fri, Feb 11, 2011 at 9:50 PM, Tony Primerano
> <tony.primer...@gmail.com>wrote:
>
>
>
>
>
> > On Feb 11, 8:45 am, Frederick Cheung <frederick.che...@gmail.com>
> > wrote:
> > > On Feb 11, 1:37 pm, Tony Primerano <tony.primer...@gmail.com> wrote:
>
> > > > I have a model and I set defaults for some values by overriding the
> > > > read accessor. For example
>
> > > > def heading
> > > > read_attribute(:heading).nil? ? 'Please select from:' :
> > > > read_attribute(:heading)
> > > > end
>
> > > Have you double checked this works by calling heading directly on the
> > > object in question?
>
> > yes.
>
> > This works
>
> > <%= f.text_field :heading, :value => @site.heading %>
>
> > and if I set it in the controller it works fine too.
>
> > @site.heading = 'testing'
>
> > Maybe text_field is using read_attribute instead of calling the
> > method?
>
> > > Fred
>
> > > > The problem I have found is that text_field ignores this.
>
> > > > <%= f.text_field :heading %>
>
> > > > is empty even when heading is nil
>
> > > > now I can easily add :value and it works
>
> > > > <%= f.text_field :heading, :value => @site.heading %>
>
> > > > but it seems like this shouldn't be necessary. I also override read
> > > > accessors for values that I use in select statements on the same form
> > > > and it works fine.
>
> > > > def text_color
> > > > read_attribute(:text_color).nil? ? SiteColors::TEXT_DEFAULT :
> > > > read_attribute(:text_color)
> > > > end
>
> > > > <%= f.select :text_color, SiteColors::COLORS%>
>
> > > > This picks up the default fine
>
> > > > Is this a bug in text_field or am I just doing something stupid?
>
> > > > Tony
>
> > --
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> > "Ruby on Rails: Talk" group.
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>
> --
> -------------------------------------------------------------
> visit my blog athttp://jimlabs.heroku.com
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