similar to: slightly OT - Ruby division

Hi all - To avoid floating point issues, I''ve decided to store monetary values in cents in the database. However, the user will enter these in dollars and cents. Two questions: 1) How do I do the validation for the currency format? It looks like ActiveRecord truncates the cents since it thinks the field type is a Fixnum. Am I forced to do validation in the controller? 2) Where

Or does anybody prefer fastcgi/fcgi? I''m using webrick for development, but plan on using scgi when I switch to production (because it appears to be an update to fastcgi, and I couldn''t get fastcgi working anyhow). thanks csn __________________________________ Yahoo! Mail - PC Magazine Editors'' Choice 2005 http://mail.yahoo.com

Hi, Just thought it was weird that Ruby doesn''t automatically cast ints to floats. Seems so un-rubyish irb(main):006:0> 12/16 => 0 irb(main):007:0> 12.to_f / 16.to_f => 0.75 Jeroen

Hey all, this is kind of a weird question, but is there any way to tell ActiveRecord to not update a field that hasn''t been changed? When I see my executed UPDATE sql, I see it trying to update every single field, regardless of whether its been changed or not. Is there any way to have ActiveRecord update ONLY the changed fields? Thanks guys, Jin

I guess you could call this a noobie problem as well. I''m trying to divide two numbers by each other... For example: <% for element in project.elements %> Element: <%= horizontal_bar_graph [element.name, ((element.completed_hours / element.hours) * 100)] %><br /> <% end %> element.completed_hours == 2 element.hours == 5 (2 / 5) * 100 == 40 However,

Hey all, I believe there is a memory leak when using Win2000 + SQL Server + Apache2 + scgi + rails 1.1. My apps so far have been pretty ''low impact'' and i did not notice it before, but the memory footprint of ruby.exe is growing larger. After 6 queries that fetch ~2,000 rows each, ruby.exe has grown to 41 megs (originally around 20). The memory leak is also present in webrick,

I''m running into the need (on at least one project now) to implement end-user-customizable "metadata" or properties on model objects. The standard example would be a Person class that had first_name, last_name, etc. but would need to be extended real-time (through the web admin interface) with properties such as phone_number : varchar (30). I''ve done some basic

Using lighttpd + fcgi to power a site. When no one has accessed it in a while, the first visit to the page takes a while to load up. Then subsequent visits are fairly fast. Any ideas on how to fix it?

This isn''t Rails or Ruby related, but I just need some advice and thought I''d ask the bright individuals here. I want to start my own blog but I''m not sure where to begin. I don''t want to get a blogger account because I want to have my own domain. Blogger also doesn''t have many features. My hosting service is 1AND1 so it supports php, cgi and mysql.

Greetings, I am working on extending a new part of our site to use Ruby on Rails, and have several portions of the site that is included in external files. The rest of the site is built on top of MovableType and uses PHP Includes to reference the external files. Is there similar functionality in Ruby or Rails that I can use so I don''t have to update excess content in two

Agile book lacks some basic information, perhaps I need to learn ruby as I am lacking information - some basic things - especially debugging. The following are stupid newbie questions and any portion of them answered would be great. 1. If I am viewing a page from app/views/clients/ and on this page, I want to put a ''link_to'' directive to say app/views/case_managers... how do I

Is there any reason to avoid using postgresql for small web apps? That is, is it''s overhead so large that the lighter MySQL will work substantially better for small apps on small machines? Or are they very similar in performance and configuration? I''ve used MySQL but postgresql has its appeals and I''m wondering if I need to keep MySQL around at all. On the other

Hello, I recently came across an OpenCL kernel in which an int vector type was subtracted from the INT_MIN constant, e.g. int2 v2 = INT_MIN - (int2)(0); INT_MIN was defined as #define INT_MIN (-2147483648) Clang in OpenCL modes (-x cl) produces the following error: vector_conversion.c:12:42: error: can't convert between vector values of different size ('long' and 'int2'

Hi, I would like to know if there is a way to maintain database reflection for the ''new'' and ''edit'' views whilst removing scaffolding? I''m trying to create a webapp that will be somewhat maintainable by colleagues (that aren''t necessarily web developers) through simple manipulation of db table fields. For example to add another field to the

Hello! I''ve put some questions on this list some weeks ago and I''ve got good answers. Thank you! Now I''ve finished my (beautyful) script and I ran it on my router... About my script: It routes packages based on their destination on the Internet. I have about 1650 preffered destination networks listed in some file. The script read this file and marks every package for

Hi guys! I have to compute something and i don't know what i'm doing wrong. my code is a bit complex, but imagine that is something like this: a = c(1,2,3,4) ia = length(a) x = seq(1,100,length=0.1) ib = length(x) int1 = numeric(ib) b = numeric(ib) for(j in 1:ia) { H = function(x) {sin(x + a[j])} for(i in 1:ib) { int = integrate(H, lower = 0, upper

Is there support yet for adding something to a list in sorted order? For example, you have a form to add a new item and you want the new item to be inserted in the list in the proper order. I''ve noticed the :position option in the form_remote_tag but it doesn''t seem like you can use it to keep things in sorted order. Rod Schmidt http://rodschmidt.blogspot.com "Do or

On Feb 11, 2009, at 4:07 AM, Alex wrote: > In my hardware there are two special registers cannot be copied but > can only be assigned and referenced (read) in the other instruction. > They are allocatable also. > > br i1 %if_cond, label %then, label %else > then: > %x1 = fptosi float %y1 to i32 > br label %endif > else: > %x2 = fptosi float %y2 to i32 >

I can''t for the life of me figure this out. Been banging my head on this since the weekend, and can''t see what I''m doing wrong. This code works: image.resize("640x480") image.write(path) I run this and I get the resized file just fine. This doesnt work at all: width = 200 height = 100 dimensions = "#{width}x#{height}"

Hello-- There must be a better way to do this. I have a class method in my model that finds averages and does a few calculations using find_by_sql. The problem I¹m encountering is that all computed columns from MySQL come back as type string. E.g., def self.find_averages(domain_id) if @@domain_average return @@domain_average else @@domain_average =