similar to: Exceptions available in Ruby on Rails

Anyone know a pretty way to get a list of all Models? That is, a list of all classes which inherit from ActiveRecord:Base I can''t seem to figure it out! The best I''ve got is to list the /app/models directory... but, that is *dirty*. -hampton. -------------- next part -------------- An HTML attachment was scrubbed... URL:

ActiveSupport provides a method Object.subclasses_of, shown below: def subclasses_of(*superclasses) subclasses = [] ObjectSpace.each_object(Class) do |k| next if (k.ancestors & superclasses).empty? || superclasses.include?(k) || k.to_s.include?("::") || subclasses.include?(k) subclasses << k end subclasses end Can anyone shine some light on why

Hi! I want to do what subject say. Is there any elegant way to do this: ??? # Silence the log inside the block attached to the method call. def silence_logger orig= nil ObjectSpace.each_object(::Logger) do |logger| logger.info "-" * 80 logger.info "Quieting the log..." orig= logger.level logger.level= ::Logger::FATAL end yield

hi all, i am new to r , i am trying to run data mining algorithms using map reduce framework.. * *i have few basic doubts* *1. can i give file in hdfs to kmeans( ) ? ?I tried as > file1 = hdfs.file("testdata/synthetic_control.data") > isf = hdfs.read(lsf,5242880,0) >l = kmeans(isf,2,10) its not working.. please help 2. How to access the file in hdfs and give as input to

Hi everyone, hi have a similar problem in a view: <div id="content">...</div> <a href="javascript:void(0)" onClick="Effect.Toggle(''content'');">Hide/show content</a> I would like the page to "remember" that the div has been hidden after a page reload. (The div comes up always visible even if it was set to hidden

Hi All, Can you give some ideas on Garbage collection in Ruby? Thanks in advance... -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ 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-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To

Hi, I''m using an ActiveRecord::Observer to log users changing data in my application. However, I''ve noted that adding an item to a has_many relationship gets logged, but removing the item does not. That is: @product.users << user is logged, but: @product.users.delete(user) is not. I''ve dug into ActiveRecord and found that the underlying issue is that the

Hi, my mongrel has crashed with following errors in the logfile: ** Starting Rails with development environment... ** Rails loaded. ** Loading any Rails specific GemPlugins ** Signals ready. TERM => stop. USR2 => restart. INT => stop (no restart). ** Rails signals registered. HUP => reload (without restart). It might not work well. ** Mongrel 1.1.3 available at 0.0.0.0:3000 **

We''ve run into this problem several times and it''s not really expected that someone is going to monkey with /dev/null. So here''s a simple patch. I am not on the mailing list, so please Cc: me. --- lib/unicorn/util.rb | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/unicorn/util.rb b/lib/unicorn/util.rb index cde2563..6b6cca2 100644 ---

Hello, I''ve been working for a few days on a problem which, after tracking it down, seems to be related to unicorn. I''m hoping that somebody might be able to help with information about what''s going on. In the Rails 3 application that I support, we sometimes fork during a web request in order to do background processing behind the scenes without the user (and the

Hello. I have an application that depends on a table/model (ModelInternationalization) that provides international translations in various languages for all the model/table and columns names as well as some other stuff (whether the column is visible on forms, dropdowns, lists, reports etc). I need to create a management interface for this translation stuff (the plaintext stuff, btw, will be

Hi How can i get ROC for svm during modelling in SVM. how to plot the values thanks karthik On 2/16/06, karthi keyan <gkkarthikeyann@gmail.com> wrote: > > Hi > My name is karthikeyan. > > I am using svm in R for my data set. > > my data set contain 60 finance ratio as variables and i want to classify > into group of good and bad. > > I want to know

Hi, Sometimes I am getting "Stack level too deep" exception. I have know no idea on when I am getting and why I am getting. Please give your suggestions. Thanks in advance... -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group.

Hi I''ve migrated from Passenger to Unicorn about a week ago. It''s great. Great transparency and management, thanks for this great software! A few of my Rails applications start background jobs using Kernel#fork. Of course, the ActiveRecord connections are closed and reopened again in the parent and child processes. The child process also does its job. Unfortunately, it seems

Hi, I can''t get my radio button to be checked by default, here is what I have: <%= f.radio_button :gender, "male", :checked => ''true'' %><p>Male</p> <%= f.radio_button :gender, "female" %><p>Female</p> -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received

Hi, I''m trying to write some methods which use a parameter to represent a Class name. A very simplistic example: def foo(class_name, conditions) x = class_name.find(:all, :conditions => "#{conditions}") end Unfortunately, this does not work. The only way around this problem that I can think of is to use eval: def foo(class_name, conditions) x = eval

Hi My name is karthikeyan. I am using svm in R for my data set. my data set contain 60 finance ratio as variables and i want to classify into group of good and bad. I want to know how to do the crossvalidation for the svm . first i am doing modelling and i am predict and i am calculating the probabilities how can i do the cross validation and how can i plot the svm for this variables

I recently upgraded to 1.8.4 to try out mongrel, and so far have been in a kind of hell where I can''t get my app working! Currently running (or trying to run): Ruby version 1.8.4 (i386-mswin32) RubyGems version 0.8.11 Rails version 1.0.0 Active Record version 1.13.2 Action Pack version 1.11.2 Action Web Service version 1.0.0 Action Mailer version 1.1.5 Active Support version

Hi All: I am clustering 500 genes using hclust of R. Visualizing cluster membership becomes difficult with so many genes in each cluster...Is there a way of printing the dendrogram in multiple pages so that I can clearly see what is in each cluster? Thanks in advance. Karthi.

I currently have a program that automates 2-way ANOVA on a series of endpoints, but before the ANOVA is carried out I want the code to test the assumptions of normality and equal variance and report along with each anova result in the output file.  How can I do this? I have pasted below the code that I currently use.   library(car) numFiles = x #