similar to: :dependent for not destroying

Hi everyone, A couple of weeks ago I noticed a bug with :dependent => :nullify on a has_many or has_one. When you delete the parent, the children''s foreign keys are nullified, as expected. But when you do parent.child.delete or parent.children.clear, ActiveRecord actually deletes the child records, rather than just nullifying them. In my eyes, if you''ve set

Hello everyone, I''m trying to migrate a working app from Postgres to MySQL, and I''m trying to use a migration to get it done rather than alter all my database table creation scripts to MySQL syntax. I''ve done loads of work with Postgres, but am a real newbie with MySQL... I did a ''rake db_schema_dump'' from my Postgres app, and got a nice looking

Hello! I have a legacy DB and want to use ActiveRecord for it. However, I can''t set up a relation correctly. Here''s table spec: [products] id name price [subproducts] product_id subproduct_id Some example data: [products] 1, "Computer", 500.00 2, "Monitor", 200.00 3, "Printer", 100.00 4, "System", 700.00 5, "System2",

I am after a nice way to disable (not destroy, delete nor nullify) all associated records. I''m a hoarder, I don''t want to get rid of anything but I want to stop records being visible. I have a disabled boolean in my tables and if I disable the top record in the association (say the association is 5-6 levels deep), I would like to cleanly disable its children. I''ve

Greetings, I have a technical question about update_va_mapping_otherdomain....... I have two components: a C program linked against libxc and a kernel module which performs the following simple sequence of events from domain zero: 1. Pause guest (unprivileged) 2. Grabs the PTE associated with a random (but present) page within the guest''s kernel''s address space (using a

Hi I''m getting the following error : /Users/nikosd/.rvm/rubies/ree-1.8.7-2011.02/bin/ruby -e $stdout.sync=true;$stderr.sync=true;load($0=ARGV.shift) /Users/nikosd/.rvm/gems/ree-1.8.7-2011.02@.../bin/rake test Testing started at 12:00 PM ... (in /Users/nikosd/Work/.../.../...)

Hi, What do you think is a reasonable salary for a ROR programmer in Manchester, UK? If you''re working with ROR and in the UK i''d be interested in knowing your salary :-) Your opinions would be very valuable to me JD -- Posted via http://www.ruby-forum.com/.

Hi all - I am having some trouble figuring out how to model self-referential entities in Rails. I have a "group" model, which can have 0 or more "group" objects or 0 or more "user" objects. I tried creating a subgroup table that has a parent_group_id and a child_group_id as foreign keys but can''t figure out how to create the mapping in my ruby model

In my rails application,there are two models:post and catalog. One post has a catalog,and one catalog has many posts. When I delete a catalog,the posts belongs to the catalog will not be shown normal,for it''s catalog is no existed. Now I want to create(if the ''Defalut catalog'' is not existed) a ''Defalut catalog'' in catalogs table,and make the

Hello, After investigating PR14133, I've discovered that jump threading can output self-referential instructions: %inc.us = add nsw i32 %inc.us, 1 At least in the test case for that bug report, the relevant code is later deleted (perhaps it is unreachable), and so this does not cause a problem. Unfortunately, when vectorization is enabled, this instruction causes BBVectorize to hang. Should

Hello all. I am trying to create a self-referential has_many :through. I used the following site as a guide http://blog.hasmanythrough.com/articles/2006/04/21/self-referential-through but it still doesn''t appear to be working. I have two models. Person and Relationship. A person has many contacts (Which is another person) through relationships class Person < ActiveRecord::Base

Is it possible to have rsync order transfers by file size (smallest files first) ? Would it be a big patch ? Thanks Viki

Hi, Is rails supposed to support referential integrity? That is rails either support to be able to ensure that when a new contact is created this can only happen if a valid suberb is associated with it, and which mechanisms of the below are supposed to do this? (a) using DB foreign key constraints information as a basis? (b) using the "has_one" line in the model file to enfore? If

So I''m one of those nasty people building a self-referential habtm-like Association using the funky new :through stuff. This is about users having friends, so here''s my user.rb: class User < ActiveRecord::Base has_many :friendships, :foreign_key => ''user_id'' has_many :friends, :through => :friendships, :source => :friend end And here''s

Given the following class Programmer < ActiveRecord::Base has_many :assignments has_many :projects, :through => :assignments end if I call Programmer#projects.clear, it will delete_all the joining assignments; however, I have a situation where I''d like the assignments to get destroyed instead so that their after_destroy callbacks get called. It would be simple to

Let''s say I have: A BELONGS_TO B B HAS_ONE A (with :dependent=>:nullify) But this association does not need to exist. In other words, I could have many A''s and B''s that are not associated in this manner. Presently, if I try to delete "B": 1. If B is associated to an "A", this works fine and A.my_B is nullified. 2. If B is NOT associated, I

Hello List, I created a self-referential many-to-many relationship (as described in the book Rails recipe #18), where I have a model that has many-to-many relationships with itself. In this case, it''s person who can become friends. The join table looks like this: mysql> select * from friends_people; +-----------+-----------+-----------+ | person_id | friend_id | confirmed |

----- Original Message ----- > From: "Chandler Carruth" <chandlerc at google.com> > To: "Katya Romanova" <Katya_Romanova at playstation.sony.com>, "Nick Lewycky" <nlewycky at google.com> > Cc: llvmdev at cs.uiuc.edu, "Philip Reames" <listmail at philipreames.com>, "Hal Finkel" <hfinkel at anl.gov>,

Hello friends! I am trying to make a database that will have a group of people set to committees, and a person can be in multiple committees, and a committee obviously has multiple people. The people are senators at my university. These are my current models: senator.rb: -- class Senator < ActiveRecord::Base validates_presence_of :first_name, :last_name, :floor has_and_belongs_to_many

Not that I have your attention! :P I''ve been having a discussion with a respected colleague here: http://phpbuilder.com/board/showthread.php?t=10340411 (Rails vs. PHP) He''s basically saying that Rails won''t be able to scale because referential integrity and tranactions are done in the application rather than the database. Please read the referenced thread for much more