From: MonkeeSage <MonkeeSage@...>
Date: 2007-12-07T18:15:25+09:00
Subject: Re: array iterator that have more arrays that also need iter

On Dec 7, 2:06 am, Raimon Fs <co...@montx.com> wrote:
> Xavier Noria wrote:
> > On Dec 7, 2007, at 12:13 AM, Raimon Fs wrote:
>
> >> 1600_tax: "13210.85"
>
> >> I'm still getting attributes and values, not a simple array ...
>
> > But why do you put a trace at that point? Of course a is a hash there,
> > but you are not aggregating the hash, you're collecting the
> > *collection of values of those hashes* via a.values. You need to work
> > with tha variable "values" which is assigned the result of the
> > map.chain. Please inspect the array stored in the variable "values"
> > after that block of code has run.
>
> Now I see where was my error ... I was using the variable a instead of
> variable values.
>
> Using the values gives me an array, but now I see that the order is not
> the expected.
>
> It's the same as it was in the hash, so the problem is at the begining,
> when I issue the 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)
>
> I suppose, that @temp_result should be:
> ---
> - !ruby/object:InvoicesCalcul
>   attributes:
>     base: "707.59"
>     tax: "0.0"
>     total: "707.59"
>
> but it's:
> ---
> - !ruby/object:InvoicesCalcul
>   attributes:
>     tax: "0.0"
>     total: "707.59"
>     base: "707.59"
>
> so, I have to change my code, but at least, I learned how to extract the
> values from a hash and put in an array.
>
> Thanks, now is working, but I did some changes in other parts.
>
> regards,
>
> raimon
> --
> Posted viahttp://www.ruby-forum.com/.

Hashes are unordered in ruby 1.8. The best way to guarantee you always
get the order you expect is to sort the keys. Using Xavier's code from
above with "values" result sorted on hash key...

values = @arr[0].map do |ic|
  ic.attributes
end.map do |a|
  a.keys.sort.map do |k| # this part
    a[k]
  end
end.flatten

Regards,
Jordan