similar to: Can Ruby do this?

Ok, so this is kinda out of the blue... but I''ve been looking at Google Base and thinking that it''s got some really good ideas in it. Especially the way you can create your own "type" of item with its own custom attributes, like date range, location, number, text, etc. Kind of like defining a database with a GUI, but not exactly. It seems really interesting to me, from

I get this result in Terminal (10.4.latest) pb12-olivier:~ ambush$ gem install rails --include-dependencies Attempting local installation of ''rails'' Local gem file not found: rails*.gem Attempting remote installation of ''rails'' ERROR: While executing gem ... (Errno::EACCES) Permission denied - /usr/local/lib/ruby/gems/1.8/cache/activesupport-1.3.0.gem

My R script needs to pause or wait for a key or mouse on each graph. I used the following statement after each plot par(ask=TRUE) This works on Windows but not on MacOS. Is there any way to pause on graph in MacOS? Thanks, Vu [[alternative HTML version deleted]]

Newbie, having good luck with Dave Thomas'' book ''Depot'' application until I discovered that changes to one of my .rb class files are not being recognized until I bounce the webrick server. Any ideas on this? Thanks. -- Posted via http://www.ruby-forum.com/.

how can I generate a new controller that inherites from another bas controller? using: ruby/script generate myNewController command? -- Posted via http://www.ruby-forum.com/.

Hello R community, I am using R for creating a model using optimization. I would like to ask if there is R-function/package for solving the problem below: Minimize sum(abs(exp^(Ai1 x1 + Ai2 x2 + ... + Aim xm - bi) - 1)), for each i = 1, ..., n. subject to Ai1 x1 + Ai2 x2 + ... + Ajm xm - bi <= c, where c is a scalar. (x is a vector of variables, A is nxm matrix, b is a vector)

Admin Controller - def show @wizard = Wizard.find(params[:id]) end View - <td><%= link_to ''Show'', :action => ''show'', :id => wizard %></td> URL - http://localhost:3000/admin/show/1 I want user_name (one of the columns in the database) instead of the id to show For example:

Hi, My saves are failing me and I can''t figure out why. I am trying to save an address id to a user object just after I create the address. This isn''t the exact code, but it shows what I am trying to do. class AddressesController < ApplicationController def create @address = Address.new(params[:address]) saved_address = @address.save @user =

Hi, when I define a db column to be non-nullable or of length 20 or as numeric, I would expect rails to validate that, but that doesn''t seem to be the case. Any idea why that is? The metadata is accessible, at least in the mysql case. I am using rails 1.0 with mysql 5. Cheers, Mariano

Hello all, This is the laptop I own: HP Pavilion dv6t Quad Edition Spec: Intel Core i7-2630QM 2.0GHz, 6GB RAM, 750GB HDD, VGA ATI Radeon HD 6490M You can also check the spec here: http://www.amazon.com/HP-Pavilion-dv6t-dv6tqe-Laptop/dp/B00506B7DS/ref=sr_1_3?s=electronics&ie=UTF8&qid=1312164145&sr=1-3 I am going to install CentOS 6 to it but I want to make sure that which drivers

I have orders, order_items, and products. I want to collate several orders so that I can get a SUM of quantities ordered for each product etc. Can I say something like (the below gives an error on :sum, and ignores :group) OrderItem.find(:all, :sum => ''quantity'', :group => ''product_id'', :include => [:order, :product]) I want to get back a

The agile book says "You can inspect variables, set values, add other breakpoints, and generally have a good time". This is very sweet and totally useless. For example, I want to see the session variable, the cookies variable and so on. These names are unknown. I think I guess that the things that are available depend on where you put the breakpoint() call. I''ve tried a

Hello, I am a complete newbie with Ruby and Rails. I am working on learning it by writing a project I was going to write in PHP using Rails. I am having a difficult time finding clear information on how I would do this. I need to take a date out of a table in my database and given another day calculate the next 28 day anniversery of the original date. This is used to calculate a delivery

I created a controller called reports, for which I didn''t have any model or tables. I wanted to use a menu/layout structure similar to all my other models/controllers and added a layout named reports which then gives me the menu/layout structure but is also now part of all my reports. That isn''t gonna work so I renamed reports.rhtml to reports_forms.rhtml (still inside my

I have a simple object, Article, which has_one :parent of the same time. On my Show page for a given article there will be a "new child" button which will pass the current :id (or the current Article itself) to the new form. What is the proper way to hide a reference to this parent in the form so that when it is submitted back, the create method knows what to do with it?

In my rails application, certain computers were having huge problems. There were certain pages that were exceptionally slow, even to the point of timing out. Other computers did not have a problem. I finally found that Firefox was the difference. When using Firefox on those computers it works fine. The slow pages were typically posting a form with a couple hundred fields. This behavior was

Hi all, I am running 5.4 After running sudo yum clean all sudo yum update We got it upgraded to 5.6 cat /etc/redhat-release CentOS release 5.6 (Final) So, how can I get it my CentOS from 5.6 to 6.0? [vuhung at -08 ~]$ sudo yum update Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirror.vietoss.com * extras: mirror.vietoss.com * updates: mirror.vietoss.com

I try a ''hello world'' demo here,you can see all my codes and structure http://www.smtservers.com/demo/ I want to access the ruby app like this http://www.smtservers.com/demo/say/hello but I get a 404 error. Please let me know why. I am not sure the site structure is ok or not.Please give me a help Thanks Mark -- Posted via http://www.ruby-forum.com/.

when i tail -f my log: i find this: "Completed in 0.00233 (428 reqs/sec) | Rendering: 0.00005 (2%) | DB: 0.00118 (50%)" i am sure, this request didn''t access DB. but why here DB is (50%) it''s log wrong or my fault? regards -- Posted via http://www.ruby-forum.com/.

Hi Guys, I''ve been out of the rails loop for a couple of months. Now Im about to deploy another new app. But I need to add a simple weblog to the application... has anyone done a weblog generator or do yoyu know of any weblogs thats easy to integrate in a current app?? thanks in advance! Mikkel Bruun www.strongside.dk - Football Portal(DK) ting.minline.dk - Buy Old