similar to: Way to mark record as main?

Assume a model Parent and another model Child. Child belongs_to Parent and Parent has_many Children. The following fails: @ p = Parent.find(:first) assert p.equal?(p.children[0].parent) @ It seems odd to me that I and my child''s parent are not the same object. In fact, this is royally screwing me up. Can anyone tell me why this is or point me at a relevant discussion, blog posting,

right now i''m adding an item to my ''list'' but i''m unsure how to move it to a certain spot in the list. specifically i want to put it at the bottom of the list. i assumed that if i did something like parent.children << new_child then the ''position'' field in the child table would be given some sensible default by rails but instead

When moving an item around within the list, shouldn''t EVERY item have its optimisitc locking field updated? Currently, only the item that is moved has its optimisitc locking field updated, but every item has its position field changed so surely they too should have their optimistic locking fields updated? I''ve created a drag and drop interface on a list of items that allows for

Hi, I''m getting the error below, and I''m not sure where to find "acts_as_list" ... NameError in SpecialsController#printer undefined local variable or method `acts_as_list'' for #<Class: 0xb7a46994> RAILS_ROOT: /usr/local/apache2/htdocs/dps Application Trace | Framework Trace | Full Trace vendor/plugins/trunk/lib/scope_out.rb:70:in

I need an ordered (sortable tree) and I just was thinking if somehting like this is possible: class Item< ActiveRecord::Base acts_as_tree :order => "position" acts_as_list :scope => ''parent_id = #{self.id}'' end For my understanding mixing of two acts_as should be p?ssible, at least in this case, right? Unfortunatly the :scope is not working, I am not

I am trying to install acts_as_list in a rails 2.2.2 project but when I try the following: ruby script/plugin install acts_as_list I get: Plugin not found: ["acts_as_list"] I had to download the acts_as_list plugin from the github because it isn''t included in Rails 2.2.2. The files are in my vendor/plugins/acts_as_list folder so I have: lib/active_record/acts/list.rb

I have a couple 64-bit CentOS 5 installations here and was wondering if there was a yum option to have it install only x86_64 arch by default if no arch is specified. I tired of having to append .x86_64 on all package names I only want the x86_64 versions of, if I want the i386 versions too I would add the .i386 package to the list... Thanks All, Ross S. W. Walker Information Systems

Here''s my issue: running ruby -I test test/unit/something_test.rb for each of my unit tests works perfectly. However, running rake test:units brings errors in all of them - some object becomes nil for some reason. Why might this be happening? Specifics: the object that is successfully not nil when I run the unit tests one-by-one but becomes nil when I do rake test:units is defined like

I keep reading that RHEL/CentOS 5 supports blktrace, but I can't seem to find the blktrace/blkparse utilities. Is it that just the functionality is available in the kernel, but the user is left to have to hunt down the latest versions of the utilities on the net? If anybody knows where to get the latest versions of these utilities I would greatly appreciate it. Ross S. W. Walker

Hi I have an problem about before_* callbacks. I have a model named: Event And I don''t want anyone to destroy or update any records in Event model. So: [code] class ActiveRecord::Base before_destroy :log_illegal_operations before_update :log_illegal_operations private def log_illegal_operations Event.create({:key => "illegal operation", :value =>

Hello, I have been following the STI example in AWDWR and have a question about presenting the output. I want to output a list of Person objects that are grouped by their type. I have an array of all the Person objects and I would like the output to be as follows. Employee x3 <ul> <li>Employee 1</li> <li>Employee 2</li> <li>Employee 3</li> </ul>

Hiya - before I start let me tell you i''m a Nuby on Rails. I''ve created a user registration within my application that requires email validation and that seems to be working fine. I''m now creating the user login page and have the following code in my UsersController: def login @user = User.new @user.username = params[:username] end def

Hello, I am updating an object with an AJAX form: view: <% remote_form_for(@sample, :update => "content2") do %> <p> parameter: <br /> <%= select("sample","parameter",Parameter.find(:all).collect {|p| [p.description.gsub(''_'', '' ''),p.id]},{},{:size => 4, :multiple => true}) %>

Hello, I''m a newbie here... please... can anyone help me about FULL AJAX ? for example if i''m scaffolding a simple model and controller for product which only have 1 field for NAME:STRING with the command : script/generate scaffold Product name:string and for the generated code I like to turn it into a full ajax app, for example if i''m click the NEW or EDIT link it

OK so I''ve been trying to follow the tutorial here: http://rails.homelinux.org/ When I simply do "scaffold: category" in the controller.rb, everything works fine. BUT after I generate the controllers and other files using scaffold AS A SCRIPT (script/generate scaffold categories), DESTROY (or DELETE) does not work for any record in a table. This is the error I got: Processing

Ok, I got blktrace installed, but I also have some blktrace system taps that I want to test out, but it seems I need to have the kernel debug info installed to get systemtap working. Anyone know where the CentOS kernel-debuginfo RPMs are located? Ross S. W. Walker Information Systems Manager Medallion Financial, Corp. 437 Madison Avenue 38th Floor New York, NY 10022 Tel: (212) 328-2165 Fax:

I'm running FC8 with Gnome 2.20.0 at work and I have this interesting situation. I have two disks on the system that are both configured to be mounted in /etc/fstab, but I'm seeing two things I believe are strange. One is that the second drive is not getting mounted at boot time. The other is that I see two icons for the disk on my desktop - one with the mount point of the drive, the

HI, I am creating n onlinecalendar sort of functionality for which the user input for events is taken. To make it user friendly, its left to the user to write the time down rather than selecting it from a datetime field in a form . The user can also specify a timezone. And while doing so its obvious that most inputs will be an abbreviation. My question is - is there a way to convert

I try to get working together vlan and bonding both for dom0 and domU. I lost packets sent to dom0 while domU is OK. Nightly stats for dom0: 52879 packets transmitted, 45293 received, 14% packet loss, time 52879599ms rtt min/avg/max/mdev = 0.144/0.224/717.306/5.129 ms Nightly stats for domU: 52952 packets transmitted, 52952 received, 0% packet loss, time 52952554ms rtt min/avg/max/mdev =

To all, I was wondering if it was possible to setup samba shares that use subversion as a backing store for the files. Whenever a new file is created it is added to the subversion tree, whenever a file is opened it is checked out of the subversion tree, and whenever it is deleted it is removed from the subversion tree. The idea is that one could use subversion to retain previous versions of