Rails - Dec 2007 - ActiveSupport::JSON::CircularReferenceError in InvoiceContro

Hello again,

I''m trying to use a grid control from EXTjs with RoR, and I''m
following
some exampe I found on the web, and adapting to my test database ...

I can''t see any row, the grid is only a poor line, I use other extjs in
the same page, and they are ok.

Trying to debuging, I found that the error, or at least one error, is
when I apply the json ...

Here''s the code:
-----------------------
If I comment the last line: render :text=>return_data.to_json,
:layout=>false I don''t get any error.

Any clue of what''s wrong ?

thanks,


raimon



         return_data = Hash.new()
         return_data[:Total] = @invoice_pages.item_count
         return_data[:Movies] = @invoices.collect{|u| {:id=>u.id,
                                             :factura=>u.factura,
                                             :data=>u.data,
                                             :client=>u.tipus,
                                             :total_base=>u.total_base,
                                             :total_iva=>u.total_iva,
                                             :total=>u.total} }
        render :text=>return_data.to_json, :layout=>false
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On 04 Dec 2007, at 18:17, Raimon Fs wrote:
> I''m trying to use a grid control from EXTjs with RoR, and
I''m
> following
> some exampe I found on the web, and adapting to my test database ...
>
> I can''t see any row, the grid is only a poor line, I use other  
> extjs in
> the same page, and they are ok.
>
> Trying to debuging, I found that the error, or at least one error, is
> when I apply the json ...
>
> Here''s the code:
> -----------------------
> If I comment the last line: render :text=>return_data.to_json,
> :layout=>false I don''t get any error.
>
> Any clue of what''s wrong ?
You''ll probably have dates in your data to output as json. It
doesn''t
always work in Rails 1.2.x (don''t know about Edge). You could look  
into jsonifier, iirc this plugin fixes these kind of problems.


Best regards

Peter De Berdt


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Peter De Berdt wrote:
> On 04 Dec 2007, at 18:17, Raimon Fs wrote:
> 
>>
>> Here''s the code:
>> -----------------------
>> If I comment the last line: render :text=>return_data.to_json,
>> :layout=>false I don''t get any error.
>>
>> Any clue of what''s wrong ?
> 
> You''ll probably have dates in your data to output as json. It
doesn''t
> always work in Rails 1.2.x (don''t know about Edge). You could look
> into jsonifier, iirc this plugin fixes these kind of problems.
> 
> 
> Best regards
> 
> Peter De Berdt
yes, it was a date problem as you suggests ...

I see that I have some more bugs in my ext grid ...

thanks for your info !

regards,

rai
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