similar to: Object Finalizers help

Heya guys, This one is bothering me as its evading my eye. I''m trying to set a callback on finalization of an object, ie: a finalizer set through a plugin to the model. Example In Plugin: def acts_as_goat class_eval do ObjectSpace.define_finalizer(self, lambda {self.conn.close} ) end end class UberGoat < ActiveRecord::Base acts_as_goat end Is this the correct way to set

Hey guys, I just came across this oddity, not sure what to make of it yet, but I think it might be incorrect behavior. When doing a @inst.find(:all, :include => ["hometeam", "awayteam"] ...) hometeam and awayteam are two references from a belongs_to that is of the same model and of the same table. I will get a pgerror stating that "matches", which is

What: June Phoenix Rails Users Group When: Tuesday, June 19th, 6:30 pm - 9pm Where: Office of Integrum Technologies 290 East El Prado Court, Chandler, AZ (north-east of Arizona and Warner) Topic: Overview of alternative Ruby web frameworks ---- Please join us Tuesday evening at 6:30 pm for the Phoenix Rails Users Group. This month Josh Knowles and Jade

Hi, There is an issue on socket connection with backgroundrb (rev 47) and mysql backend: after a certain number of job you reach the mysql connection limit as socket are never closed and nobody can connect to mysql anymore till you stop the backgroundrb daemon. Already reported on: http://rubyforge.org/pipermail/backgroundrb-devel/2006-July/000066.html,

If you are interested in learning about Ruby on Rails or are currently doing Ruby on Rails development this is a meeting you will want to attend. We will be having the first meeting this Wednesday July 19th at Molly Brannigan''s located at Val Vista and the US 60. Free wireless connectivity will be provided. The first part of the meeting will consist of introductions and feedback

I have a set of tests that run without issue on one machine. On another machine when running the same tests we get: /usr/lib/ruby/gems/1.8/gems/activesupport-1.2.5/lib/active_support/dependencies.rb:200:in `const_missing'': uninitialized constant Test (NameError) from ./test/unit/../test_helper.rb:5 from test/unit/entity_test.rb:1:in `require'' from

Hi Is there a way of finding out when or whether the wx object referenced in ruby is still alive? Here''s my problem # register that +wx_control+ should update on application events of type +event_type+ def add_subscriber(wx_control, app_event_type) @subscriptions[app_event_type].push(wx_control) end # later def broadcast(app_event) @subscriptions[app_event.type].each { |

Hello everyone, I''ve got a Rails app that''s going to replace an in-house application, where the customers are used to having to deal with maintaining their own servers and data. As these are non-IT customers, maintaining servers and data is a long way from their core business and thus quite costly for them. I''m hoping to slice their costs by removing the requirement

Back in the horse-and-buggy days when I was cutting my OO eye teeth on Smalltalk, we had a LOT of conversations about the biggest problem dealing with a large and growing set of classes and methods in the Smalltalk image. It became clear that most, if not all, successful Smalltalk coders spent a lot of their time code-shopping, i.e., looking for a class or method that did something they

i''m doing a site for someone that has a form set up to collect contact information from the user. i installed the vpim gem and was hoping to give my client a way to download all of the contact''s information as a vcard. using the examples, i was able to get it working in ruby, but i''m not quite sure how to generate and download a vcard on the fly. has anyone done

Hi, I've got some questions regarding finalizers registered using reg.finalizer(). I have a setup where in certain cases I wish to set a new finalizer to an object that already got one. Since there is no API for removing/replacing already registered finalizers (have been "requested" previously on this list), I have basically just added a new finalizer by calling reg.finalizer() a

Is there some way to prevent finalizers running during a section of code? I have a package that includes R objects linked to database tables. To maintain the call-by-value semantics, tables are copied rather than modified, and the extra tables are removed by finalizers during garbage collection. However, if the garbage collection occurs in the middle of processing another SQL query (which is

On Tue, Nov 24, 2015 at 12:10:12AM +0100, Jeroen Ooms wrote: > Currently it is all to easy for package authors to introduce a memory > leak or stack imbalance by calling Rf_error() or > R_CheckUserInterrupt() in a way that skips over the usual cleanup > steps. I have a more modest request: Please improve the documentation of exactly what Rf_error() does and how it should be used!

Jeroen, I agree that it may be useful to have some kind of "finally"-like infrastructure. However, in the use cases you list there are already ways to do that - the same way that R_alloc uses. First, you don't need to call UNPROTECT - the whole point is that the protection stack is automatically popped in case of an abnormal termination. That is precisely how memory leaks are

Dear R Devel, In a thread this morning Luke Tierney mentioned that R's way of garbage collecting is going to change soon in 3.4.0. I couldn't find this info on Google but I wanted to share what I had been discussing in another forum, in case now is not too late to raise considerations which could affect the design of planned changes to R's garbage collection facilities. I ran into a

Hi, I''ve just started to do some work using ActiveLDAP and Rails. I''ve managed to get some basic login code that works to authenticate users, but I would like to be able to maintain that connection for the User Model so that the ACL''s in LDAP for each user will be used correctly as the various controller queries are made. I haven''t quite sorted out how to

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

WRE explains that R_alloc() can be used to allocate memory which automatically gets released by R at the end of a .C, .Call or .External, even in the case of an error or interruption. This is a really great feature to prevent memory leaks. I was wondering if there is a way to extend this mechanism to allow for automatically running UNPROTECT and custom finalizers at the end of a .Call as well.

I am sure this si a simple problem but the solution is evading me. I have a list of matrices all with the same number of columns but different number of rows. The first two columns label the row. The labels are allways the same for the same row numbers, just some matricies have more rows. For example using 3 column matrices... > q.1 <- function(r){return(cbind(seq(0, 10, by=1)[1:r],

Here are the specs: context "Finding all the stylesheets available to a company" do setup do @mock_company = mock("company") @mock_company.stub!(:to_param).and_return "1" Stylesheet.stub!(:find) end def do_find Stylesheet.find_available_to @mock_company end specify "should convert the company into a parameter" do