From: Raimon Fs <coder@...>
Date: 2007-12-07T05:12:21+09:00
Subject: Re: array iterator that have more arrays that also need iter

Xavier Noria wrote:
> On Dec 6, 2007, at 8:25 PM, Raimon Fs wrote:
> 
>> I have one array, and each element of this array, has another array.
> 
> <snip>
>>      700_tax: "17.91"
>> 82567.36 95778.21 13210.85
>> 17.91 255.81 273.72
>> 707.59 0.0 707.59
> 
> Looks like you have a collection of InvoicesCalcul, each of them with
> an accessor "attributes", which is a hash:
> 
>    values = invoice_calculs.map do |ic|
>      ic.attributes
>    end.map do |a|
>      a.values
>    end.flatten
> 
> Those could be AR objetcs, in Rails you can write that this way:
> 
>    values = invoice_calculs.map(&:attributes).map(&:values).flatten

thanks ...

maybe they are AR, because I get those values from a loop, where I issue 
some sql:
          @temp_result = InvoicesCalcul.find_by_sql('SELECT sum(base) AS 
"'+ @name_base + '" ,sum(import) AS "' + @name_tax + '" ,sum(total_net) 
AS "' + @name_total + '" FROM invoices_calculs c, invoices i WHERE 
c.tipus='+KIND_TAX_IVA.to_s+' AND c.invoice_id=i.id AND c.xcent='+ 
@value +' AND i.any='+@c_year)

and I add those results into an array.

what I see, with your suggestion, I have the same issue as before, I 
want to retrieve the values without knowing the attribute, only by the 
index:

now I have to a['1600_base'] to get the value, I just want the value for 
each index, not the attribute.
i'm going to deep into the rail's book ...

thanks,


raimon
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