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Does has_and_belongs_to_many know to delete an object when the last reference to it is removed? In my case I have Receiver <<->> Message (with a join table of course), but have noticed that when the last receiver removes a message from the association the message still exists. Before adding code to manage this situation I want to check to see if I am missing something? --

Other than doing a raw SQL update the only way to update join attributes is to remove an object and then push_with_attributes correct? -- Lon

hi all, A year ago I did a fundable project for a browsercam annual membership, that has renewed but not everyone who originally joined has paid me for the renewal, so I have 14 user slots available. If you would like a full-access "unlimited" membership to browsercam (with VNC which is really useful), contact me off list and I''ll give you instructions - it basically

Having a devil of a time finding records in a self-referencing has_many table relationship. Everything is working find looking at the has_many and the belongs_to relationship. But, when I try to find all "orphans", records that are neither a parent nor a child, I can not find a query that work in ActiveRecord. This query works in MySQL: SELECT * FROM templates LEFT JOIN templates

This more of a best practices question. I''m implementing group functionality in a couple of applications. The typical method, using HABTM, where you create a group and add members, is typical. For example, Users, Groups and Messages. Does anyone prefer tagging instead? Any advice would be great! -- Lon Baker http://www.speedymac.com AIM: spdemac

I am having a devil of a time with some runner actions. I can not seem to call any instance methods on found records. Even when I strip is down to the basics: def self.deliver self.find(:all, :conditions => ["#{Message.table_name}.status = ?", ''pending''], :include => [:site, :template]).each {|m| logger.info m.is_recurring? # my method logger.info

Awhile ago, I posted some information about SMS Aggregators, this is just a follow-up, based on changes in the US market. As of January 31st, any commercial application, sending to US networks, is required to lease a CSC (short code) from CTIA. A CSC runs $6000/year for a random code, and $12,000/year for a vanity code. These charges are on top of the normal per message fees. This does

Hi all. I have never implemented online payment and it''s the only thing that keeps me from accepting a project for a UK based client. (I must reply quickly!) While I can afford spending an extra week - or 2 - to learn/try/tune the payment system, I must be sure to succeed before I accept the contract. If you''ve already been through that path, any hints, links and/or

This is the first release of a new Ruby library for the www.bulksms.co.ukAPI which should allow simple integration of SMS functionality into your Ruby or Rails apps. Sending a message is as simple as: @service = Service.new(''username'', ''password'') @service.send_message(''This is my message!'', ''4479123456789'') # whats my

I have an e-commerce site and users check out with a form. The results of that form are sent to a "confirm your order" page via POST. I take great pains to NEVER store the full credit card number on my server--just the last 4 digits. I was very surprised to find that by default Rails will record POST requests with parameters in the production.log. And those parameters

I was doing some research about creating thumbnail images on the fly after an image has been uploaded in a form, but for some reason it''s not working for me. I''ve downloaded ImageMagick 6.2.5 for Mac but when I run a test (identify image.gif) it gives me this error: dyld: Library not loaded: /sw/lib/libjpeg.62.dylib Referenced from: /Developer/ImageMagick-6.2.5/bin/identify

hi all, I can blab, but here is a sample of my /var/log/apache2/error.log, it has all the info: any ideas what I can do prevent 500s from hitting my users? (besides redirecting them with javascript to the same URL which will be fine on the next request? :) thanks, _alex [Fri Jun 24 12:30:45 2005] [error] [client 172.20.0.175] FastCGI: incomplete headers (0 bytes) received from

Hi all, I have begun the release of my MFC/R2 protocol software. At http://www.opencall.org/installing-mfcr2.html there are instructions for installing what I have released so far. This is the MFC/R2 protocol software, and a test program. The software to interface Asterisk to the MFC/R2 code will be released shortly. It used to work, but it hasn't been touched for a while, and Asterisk

Would "am" and "pm" be convenient and useful methods that Rails should stick on top of the Numeric class? So instead of calling Time.parse("23:30") to get a Time object at 11:30 PM, you could do 1130.pm instead. Just trying to get an opinion before I create a patch, unit tests, etc and try and convince someone to notice :) Here are the methods if anyone wants to

Dear R Users, Suppose I have a dataset like this: a b 39700 485.00 39300 485.00 39100 480.00 38800 487.00 38800 492.00 39300 507.00 39500 493.00 39400 494.00 39500 494.00 39100 494.00 39200 490.00 Now I want get a-b for all possible combinations of a and b. Using two 'for' loop it is easy to calculate. But problem arises when row length of the data set is

We are pleased to make available an early-adopter release of our open-source wiki, Informl. With Informl we are trying to do more than you would normally expect from a wiki, by providing a framework in which anyone can quickly create and deploy simple database-backed web applications. Everything you need is at http://informl.folklogic.net. Quick overview: * General wiki features * uses

(Donning flameproof suit) Am I the only person who thinks that the Ruby forum software sucks? E.g. search only for a word. Can''t search for new posts, can''t search by date, topic list doesn''t indicate when I''ve already read a post, there can be several independent replies to a topic, just to name a few. There are lots (admittedly not Ruby based) of good

I received feedback from some of you, saying that it would be cool if RailsCron was even easier to manage. So I implemented a graceful start/restart inside of the plugin''s init.rb. If you don''t like it, comment it out and send me the feedback. Also, I finished an update to RailsCron that allows you to attach asynchronous processing methods to your ActiveRecord models. i.e.:

Dear R user, I am new with split-plot designs and I have problems with multiple comparisons. This data correspond to an split-plot experiment with two replications (bloque).(Hoshmand, 2006 pp 138). Briefly, the whole-plot factor is Nitrogen concentration ("nitrogeno") and the subplot factor is the variety of corn ("hibrido"). The aim is to determine if major differences

My first computer was a Mac (SE30) but it was also my last so I am not without appreciation of Apples wonderful aptitude for design. Without starting a flame-fest why do so many ruby and rails developers use a Mac ? It seems to be a commonality within the ruby and RoR community. Especially laptops. The first ruby users group meeting I attended was about 50% Macs (or so it seemed to me - I