On Wed, 2009-06-03 at 23:49 +0200, Marnen Laibow-Koser wrote:
> Craig White wrote:
> [...]
> > ----
> > well, the round(2) function will return 1.5 if that is the stored value
> > in big decimal which was unacceptable
>
> Huh? I don't understand what you're saying.
>
> > but I didn't try
> > @price.round(2).to_f but I wonder which is faster/slower.
> >
> > In reality, though, it tossed an error...
>
> Again, I don't understand. Did you try it or not?
>
> >
> > undefined method `round' for #<Price:0xb6e1bf20>
> >
> > which I think is back to my original problem of having a big decimal,
> > that must be converted to a float before it can be rounded.
>
> No. BigDecimal#round should work as I just explained -- at least it
> does on my system. Are you sure @price is actually holding a
> BigDecimal?
----
console session...
_>> @price = Price.find(:first, :conditions => ["stockid = ?",
"F34/CW/ES"])
=> #<Price stockid: "F34/CW/ES", typeabbrev: "RE", currabrev: "USD",
debtorno: " ", price: #<BigDecimal:b7dc83ec,'0.15E1',8(12)>, branchcode:
" ">
_>> @price.price
=> #<BigDecimal:b7dacaac,'0.15E1',8(12)>
_>> @price.price.round(2)
=> #<BigDecimal:b7d9a4b0,'0.15E1',8(16)>
_>> @price.price.round(2).to_f
=> 1.5
_>> @price.price.round(2).to_fl(2)
NoMethodError: undefined method `to_fl' for
#<BigDecimal:b7ee9f64,'0.15E1',8(16)>
from (irb):8
_>> @price.price.round(2).to_f.to_fl(2)
=> "1.50"
_>> @price.price.to_f.to_fl(2)
=> "1.50"
_>> @price.price.to_f.round(2)
=> 1.5
Craig
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