similar to: Mapping to BigDecimals instead of Floats

We''re looking at big IBM hardware running AIX as a potential deployment platform for the big credit card processing Rails and Ruby stuff that my team is currently building. I was wondering if anyone else is running on AIX or knows if Ruby is well-supported on this platform. I googled the subject, but http://groups.google.com/group/comp.lang.ruby/browse_thread/thread/3daaf60b012c1921 is

So, I''m personally cool with this change (patch from #5454, applied in [4596]), and I''ll make it work for Oracle tomorrow. But just wondering if folks considered the performance impact of the change? From a simple test it seems that BigDecimal math is about twice as slow as using Floats.

I was hoping 1.1 would provide a way to map SQL "decimal" column types to BigDecimal values, since BigDecimal is part of the Ruby standard api as of 1.8. But I don''t see any support for that in the migration documentation, and when I try to let Active Record do the mapping for me, it seems to coerce the column into a Float (as the AwdwR book says). Is it really there in

Hi all, I''m working on a financial app, and have set up some columns in my tables as decimals with precision => 8 and scale => 2. My migration looks like: change_column :lineitems, :price, :decimal, :precision => 8, :scale => 2 change_column :payments, :amount, :decimal, :precision => 8, :scale => 2 I''ve run the migration and restarted the server. I

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Any idea why this calculates the integer the way it does? irb> ("291.15".to_f * 100.0).to_i => 29114 Thanks, Tom -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to

Hi, I was wondering if it is possible to output validation errors in a nested form? I suppose this should be possible, but I am experiencing an error message that I can''t track down. The error I get is the following : TypeError in Store/orders#create Showing app/views/store/orders/new.html.erb where line #45 raised: can''t convert Array into String This is ocurring in the

Hiall, I''m wondering what''s common practice when dealing with money values stored in databases. I like the idea of storing all the values as integers, i.e. all the values in eurocents not euros. Then I need to multiply all values the users enter by 100 before storing them in the database. Now the question is, what''s the most efficient and dryest way to do this?

I have a strange problem with my setup of Passenger and Ruby Enterprise Edition. Sometimes the loading of BigDecimals from the database and session fails (silently) and the variable containing the BigDecimal is just empty. I cannot pinpoint where/when/how it happens, and it IS only periodic. I am using the newest versions of both Passenger and REE - I have even tried to run with latest commit

How do you label Xtick and Ytick marks with Currency symbols: $2000 instead of 2000? I would like to add dollar symbols to tickmarks on boxplots, histograms and back-to-back histograms. My Examples (requiring the lattice and Hmisc packages): data(case0102, package="Sleuth2") str(case0102) boxplot(Salary~Sex, case0102) histogram(~ Salary | Sex, data=case0102) require(Hmisc) #

Hello. Where is there an Agile Messageboard? On the first part of the Depot example, a price field shouldn''t be an integer right? (it should be more of a float since a price has decimals) Dominic Son -- Posted via http://www.ruby-forum.com/.

I was just playing around in irb and noticed that while BigDecimal + Integer => BigDecimal, BigDecimal + Float => Float. Is there any reason for this? It seems inconsistent and means you have to check the class of any number you add to a BigDecimal, which looks very un-Ruby-like to me. Ashley

Can someone please tell me the best approach to adding support for editing MySQL decimal types in rails? I have a field in the DB that represents currency, and the view will not let save anything past the decimal place so, 10.99 becomes 10.00 automatically. Any help is appreciated. -- Posted via http://www.ruby-forum.com/.

Hello How can I test equality with two objects when they include some attribute that is BigDecimal? if I make something like this: it "should ...whatever" do obj = Factory.create(:my_object) ... MyObject.first.should == obj end. FAILS This fails because the object expected is different from the object gotten, and the only difference are the BigDecimal attributes, that are

Ok so I have this route map.namespace :trades do |trades| trades.resources :buys, :path_prefix => ''/trades/:contract_id'' end I want the contract_id variable to filter a list of buys then I try to open this route http://localhost:3000/trades/1/buys I get a strange error: ActionController::RoutingError in Trades/buys#index Showing trades/buys/index.html.erb where line

There''s a test for activerecord called test_numeric_fields in base_test.rb. here''s the test def test_numeric_fields m = NumericData.new( :bank_balance => 1586.43, :big_bank_balance => BigDecimal("1000234000567.95"), :world_population => 6000000000, :my_house_population => 3 ) assert m.save m1 =

I''m doing the depot example in the Agle Web development book. I''m getting this error: "undefined method `product'' for #<BigDecimal:331ce70,''0.21E1'',8(8)> " "Extracted source (around line #9): 8: for item in @items 9: product = item.product 10: -%> 11: <tr> 12: <td><%= item.product%></td>"

Hello! I would like to do some tables for several variables and I would like to write a loop that does the table for each variable. I should also point out that my data set has several missing observations and sometimes the observations that are missing are not the same for all my variables. What I would like to do: table(StoreData$CompanyID, !is.na(StoreData$P2))