Rails - Dec 2006 - Using link_to_remote to add a record

I am trying to use link_to_remote to simply add a record to a database
table called "ratings". I''ve seen some examples of this being
done but
can''t seem to get it to work. Any ideas about what I''m doing
wrong?


Here is what I have in my view:

<%= link_to_remote( "1", {:url => { :controller =>
"ratings", :action =>
"rate", :rateable_id => "1", :rating => "1",
:rateable_type =>
"article"}}) %>


Here is what I have in RatingsController:

  def rate
    @rating = Rating.new(:rateable_id => params[:rateable_id],
                          :rating => params[:rating],
                          :rateable_type => params[:rateable_type])
  end


I found that I can successfully write to the database through the
console with:

rating = Rating.new
rating.rating = 3
rating.save


I can also update the database using forms in my view but I can''t seem
to get it to work with link_to_remote. Any tips on debugging AJAX using
rails would be really helpful as well. Thanks.

-- 
Posted via http://www.ruby-forum.com/.

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-- -- wrote:
> I am trying to use link_to_remote to simply add a record to a database
> table called "ratings". I''ve seen some examples of this
being done but
> can''t seem to get it to work. Any ideas about what I''m
doing wrong?
What''s your functional test case look like?
> Here is what I have in my view:
>
> <%= link_to_remote( "1", {:url => { :controller =>
"ratings", :action =>
> "rate", :rateable_id => "1", :rating =>
"1", :rateable_type =>
> "article"}}) %>
>
> Here is what I have in RatingsController:
>
>  def rate
>    @rating = Rating.new(:rateable_id => params[:rateable_id],
>                          :rating => params[:rating],
>                          :rateable_type => params[:rateable_type])
>  end
>
> I found that I can successfully write to the database through the
> console with:
>
> rating = Rating.new
> rating.rating = 3
> rating.save
Why don''t you have a save! in the controller? and why you
didn''t use
.create! ?

At a guess, your test case should look a little like this:

    fixtures :ratings  #  this automatically zilches the last test''s
records

  def test_new_rate
    xhr :get, :rate, :rateable_id => 42, :rating => 1.1,
                          :rateable_type => ''hot dogs''

    rate = Rating.find_by_rateable_id 42
    assert_equal ''hot dogs'', rate.rateable_type
  end

To put it another way, all the experiments you currently do with the 
console, you should instead do as test cases. Then they help you avoid bugs 
and develop faster.

-- 
  Phlip
  http://www.greencheese.us/ZeekLand <-- NOT a blog!!!


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