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Ben Porterfield

2010-Nov-08 01:51 UTC

Webrick Failing with Illegal Instruction

I''ve just started a new rails project (3.0.1, ruby 1.9.2 on Mac OS X),
and have a few parts of it built out. I''ve just created new
controller/views using rails g scaffold_controller Lesson, and then
added a route to routes.rb with "resources :lessons"

Now, when i go to /lessons, Webrick fails with "Illegal instruction"

The controller function getting hit is lessons#index, and looks like
this:

# GET /lessons
# GET /lessons.xml
def index
  @lessons = Lesson.all

  respond_to do |format|
    format.html index.html.erb
    format.xml { render :xml => @lessons }
  end
end

If i comment out the respond_to section, the index page renders fine
with no crashing. I have no idea what I could have done to make it begin
to crash with respond_to? This is the first time i''ve used
"resources"
in my app. What can I do to even start to debug this issue? Thanks!

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Ben Porterfield

2010-Nov-08 02:11 UTC

head link

Re: Webrick Failing with Illegal Instruction

With additional testing I''ve found that anywhere i put format.html in a
respond_to block, I get the same error. Any thoughts on how I can start 
to track this down?

Ben Porterfield wrote in post #960026:> I''ve just started a new rails project (3.0.1, ruby 1.9.2 on Mac OS
X),
> and have a few parts of it built out. I''ve just created new
> controller/views using rails g scaffold_controller Lesson, and then
> added a route to routes.rb with "resources :lessons"
>
> Now, when i go to /lessons, Webrick fails with "Illegal
instruction"
>
> The controller function getting hit is lessons#index, and looks like
> this:
>
> # GET /lessons
> # GET /lessons.xml
> def index
>   @lessons = Lesson.all
>
>   respond_to do |format|
>     format.html index.html.erb
>     format.xml { render :xml => @lessons }
>   end
> end
>
> If i comment out the respond_to section, the index page renders fine
> with no crashing. I have no idea what I could have done to make it begin
> to crash with respond_to? This is the first time i''ve used
"resources"
> in my app. What can I do to even start to debug this issue? Thanks!
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Walter Lee Davis

2010-Nov-08 02:51 UTC

head link

Re: Re: Webrick Failing with Illegal Instruction

Just drop the index.html.erb part so your block looks like this:

respond_to do |format|
   format.html
   format.xml { render :xml => @lessons }
end

index.html.erb will already be inferred from the action name, and if  
you do want to set it to something different, you would say

respond_to do |format|
   format.html { render :template => ''/foo/bar'' }
   format.xml { render :xml => @lessons }
end

Walter

On Nov 7, 2010, at 9:11 PM, Ben Porterfield wrote:
> With additional testing I''ve found that anywhere i put format.html
> in a
> respond_to block, I get the same error. Any thoughts on how I can  
> start
> to track this down?
>
> Ben Porterfield wrote in post #960026:
>> I''ve just started a new rails project (3.0.1, ruby 1.9.2 on
Mac OS
>> X),
>> and have a few parts of it built out. I''ve just created new
>> controller/views using rails g scaffold_controller Lesson, and then
>> added a route to routes.rb with "resources :lessons"
>>
>> Now, when i go to /lessons, Webrick fails with "Illegal
instruction"
>>
>> The controller function getting hit is lessons#index, and looks like
>> this:
>>
>> # GET /lessons
>> # GET /lessons.xml
>> def index
>>  @lessons = Lesson.all
>>
>>  respond_to do |format|
>>    format.html index.html.erb
>>    format.xml { render :xml => @lessons }
>>  end
>> end
>>
>> If i comment out the respond_to section, the index page renders fine
>> with no crashing. I have no idea what I could have done to make it  
>> begin
>> to crash with respond_to? This is the first time i''ve used  
>> "resources"
>> in my app. What can I do to even start to debug this issue? Thanks!
>
> -- 
> Posted via http://www.ruby-forum.com/.
>
> -- 
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> .
>
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Ben Porterfield

2010-Nov-08 03:03 UTC

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Re: Re: Webrick Failing with Illegal Instruction

Awesome, this did indeed fix the problem!

However, I didn''t write the format code - this code was generated with:

rails g scaffold_controller Lessons

Which leads me to believe that this is the proper format code....3.0.1 
generates "format.html {filename}.html.erb" for each controller
function
- is this a generator bug, or do I have a problem with my system?

Walter Davis wrote in post #960032:> Just drop the index.html.erb part so your block looks like this:
>
> respond_to do |format|
>    format.html
>    format.xml { render :xml => @lessons }
> end
>
> index.html.erb will already be inferred from the action name, and if
> you do want to set it to something different, you would say
>
> respond_to do |format|
>    format.html { render :template => ''/foo/bar'' }
>    format.xml { render :xml => @lessons }
> end
>
> Walter
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Walter Lee Davis

2010-Nov-08 12:43 UTC

head link

Re: Re: Re: Webrick Failing with Illegal Instruction

That may indeed be the new Rails 3 syntax, I haven''t spent any time  
with that yet, so sorry if I led you astray. But I suspect your  
problems began when you used the plural name for your scaffold  
argument. Try again, using rails g scaffold_controller Lesson and see  
if there is a different output.

Walter

On Nov 7, 2010, at 10:03 PM, Ben Porterfield wrote:
> Awesome, this did indeed fix the problem!
>
> However, I didn''t write the format code - this code was generated
> with:
>
> rails g scaffold_controller Lessons
>
> Which leads me to believe that this is the proper format code....3.0.1
> generates "format.html {filename}.html.erb" for each controller  
> function
> - is this a generator bug, or do I have a problem with my system?
>
> Walter Davis wrote in post #960032:
>> Just drop the index.html.erb part so your block looks like this:
>>
>> respond_to do |format|
>>   format.html
>>   format.xml { render :xml => @lessons }
>> end
>>
>> index.html.erb will already be inferred from the action name, and if
>> you do want to set it to something different, you would say
>>
>> respond_to do |format|
>>   format.html { render :template => ''/foo/bar'' }
>>   format.xml { render :xml => @lessons }
>> end
>>
>> Walter
>
> -- 
> Posted via http://www.ruby-forum.com/.
>
> -- 
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> .
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> .
>
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Ben Porterfield

2010-Nov-09 03:37 UTC

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Re: Re: Re: Webrick Failing with Illegal Instruction

It''s even simpler than that. Chalk it up to a rails newbie - sorry for 
the bother. Here''s what I did:

Rails generated this:

 # GET /appointments/1
  # GET /appointments/1.xml
  def show
    @appointment = Appointment.find(params[:id])

    respond_to do |format|
      format.html # show.html.erb
      format.xml  { render :xml => @appointment }
    end
  end

I had made a few changes, but then was undoing them - I must have 
thought that I had made those comments after format.html and uncommented 
them myself.Bah!

Walter Davis wrote in post #960107:> That may indeed be the new Rails 3 syntax, I haven''t spent any
time
> with that yet, so sorry if I led you astray. But I suspect your
> problems began when you used the plural name for your scaffold
> argument. Try again, using rails g scaffold_controller Lesson and see
> if there is a different output.
>
> Walter
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David Kahn

2010-Nov-09 03:46 UTC

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Re: Webrick Failing with Illegal Instruction

On Sun, Nov 7, 2010 at 7:51 PM, Ben Porterfield
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>wrote:
> I''ve just started a new rails project (3.0.1, ruby 1.9.2 on Mac OS
X),
> and have a few parts of it built out. I''ve just created new
> controller/views using rails g scaffold_controller Lesson, and then
> added a route to routes.rb with "resources :lessons"
>
> Now, when i go to /lessons, Webrick fails with "Illegal
instruction"
>
> The controller function getting hit is lessons#index, and looks like
> this:
>
> # GET /lessons
> # GET /lessons.xml
> def index
>  @lessons = Lesson.all
>
>  respond_to do |format|
>    format.html index.html.erb
>    format.xml { render :xml => @lessons }
>  end
>
I think you need to comment out index.html.erb... should not be there, or if
you want to specify it, it should be a string or something like { render
:action => "index" }:

 respond_to do |format|
   format.html  #index.html.erb
   format.xml { render :xml => @lessons }
 end

> end
>
> If i comment out the respond_to section, the index page renders fine
> with no crashing. I have no idea what I could have done to make it begin
> to crash with respond_to? This is the first time i''ve used
"resources"
> in my app. What can I do to even start to debug this issue? Thanks!
>
> --
> Posted via http://www.ruby-forum.com/.
>
> --
> You received this message because you are subscribed to the Google Groups
> "Ruby on Rails: Talk" group.
> To post to this group, send email to
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>
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org<rubyonrails-talk%2Bunsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
> .
> For more options, visit this group at
> http://groups.google.com/group/rubyonrails-talk?hl=en.
>
>
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David Kahn

2010-Nov-09 03:47 UTC

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Re: Webrick Failing with Illegal Instruction

On Mon, Nov 8, 2010 at 9:46 PM, David Kahn
<dk-rfEMNHKVqOwNic7Bib+Ti1W1rNmOCjRP@public.gmane.org>wrote:
>
>
> On Sun, Nov 7, 2010 at 7:51 PM, Ben Porterfield
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>wrote:
>
>> I''ve just started a new rails project (3.0.1, ruby 1.9.2 on
Mac OS X),
>> and have a few parts of it built out. I''ve just created new
>> controller/views using rails g scaffold_controller Lesson, and then
>> added a route to routes.rb with "resources :lessons"
>>
>> Now, when i go to /lessons, Webrick fails with "Illegal
instruction"
>>
>> The controller function getting hit is lessons#index, and looks like
>> this:
>>
>> # GET /lessons
>> # GET /lessons.xml
>> def index
>>  @lessons = Lesson.all
>>
>>  respond_to do |format|
>>    format.html index.html.erb
>>    format.xml { render :xml => @lessons }
>>  end
>>
>
> I think you need to comment out index.html.erb... should not be there, or
> if you want to specify it, it should be a string or something like { render
> :action => "index" }:
>
>
>  respond_to do |format|
>    format.html  #index.html.erb
>    format.xml { render :xml => @lessons }
>  end
>
>Oops... did not see that this already got responses.


> end
>>
>> If i comment out the respond_to section, the index page renders fine
>> with no crashing. I have no idea what I could have done to make it
begin
>> to crash with respond_to? This is the first time i''ve used
"resources"
>> in my app. What can I do to even start to debug this issue? Thanks!
>>
>> --
>> Posted via http://www.ruby-forum.com/.
>>
>> --
>> You received this message because you are subscribed to the Google
Groups
>> "Ruby on Rails: Talk" group.
>> To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
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>>
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>> .
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>> http://groups.google.com/group/rubyonrails-talk?hl=en.
>>
>>
>
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