From: Alex Young <alex@...>
Date: 2007-02-16T05:12:04+09:00
Subject: Re: Iterating through 2 fields for one hash, or array.

Peter Bailey wrote:
> Alex Young wrote:
>> Peter Bailey wrote:
>>>      DER000          128
>>>    Cost Center     Page Count
>>>      TMUS00            96
>>>      ER0000            42
>>>      DER000           192
>> I don't know the syntax for getting the data out of KirbyBase, but the
>> trick I usually use for this sort of thing is a hash with a default
>> value.  Something like:
>>
>> @cost_centers = Hash.new(0)
>> def add_to_cost_centers(center_key, amount)
>>   @cost_centers[center_key] += amount
>> end
>>
>> Hope this helps,
> 
<snip>
>    @cost_centers = Hash.new(0)
>    def add_to_cost_centers(center_key, amount)
>      @cost_centers[center_key] += amount
>    end
> 
>    testcount_tbl.select(:costcenter, :pagecount).each do |x|
>      add_to_cost_centers(x.costcenter, x.pagecount)
>     puts x
>    end
What happens when you put:

   p @cost_centers

after this?

-- 
Alex