similar to: leaving a column out of an association

Is there a recommended way to exclude a column from associations? for example: Model Album has_and_belongs_to_many :photos Model Photo has_and_belongs_to_many :albums Photo Table int :id int :order blob :data <-- the culprit! -------------------------------------------------------- I''m caching the output of Photo.data in a controller, but i don''t want to select

Looking to get rid of a railsconf ticket. (face value) Let me know if you''re interested. Clint -- clint troxel _ openEndStudios.com _ 307.413.0366 http://openendstudios.com

Running latest rails, etc on windows xp. I can''t use "rake migrate" to migrate to latest version. I NEED to specify, i.e. "rake migrate VERSION=11" for things to work consistently. plain ''ol "rake migrate" never makes it to the latest version. no errors, she just stops short of the latest version. hasn''t been a problem until now --

Hi. I''m a fairly new mongrel user and have a scenario that I wanted to run by you all, see if anyone''s synapses connect -- mine def. aren''t! I''m running a fairly simple rails app through a mongrel cluster (2 mongrels). This site is consistently sloooow -- memory on the server is regularly paging (and shouldn''t be). ssh-ing in and running top shows

Hi, I''m currently having the situation where I have to implement a polymorphic has_and_belongs_to_many by introducing an in between model that handles all the "has_many :as" and "belongs_to :polymorphic" association implementations... and is not doing anything else. Thing I don''t like it here is, I am unnecessarily loading AR instances only to execute SQL

Hello Experts, I have a HABTM association as followed: class Account < ActiveRecord::Base has_and_belongs_to_many :user end class User < ActiveRecord::Base has_and_belongs_to_many :type has_and_belongs_to_many :account end class Type < ActiveRecord::Base has_and_belongs_to_many :user end I have the following query; I Have a parent user who is creating another user under its

I have two objects that are associated in the following way: class Class1 < ApplicationController has_and_belongs_to_many :class2s has_and_belongs_to_many :otherClasses end class Class2 < ApplicationController has_and_belongs_to_many :class1s has_and_bleongs_to_many :otherClasses end Now, when I run the following query, @objects = Class1.find(:all, :conditions

Hi, I am new to Ruby and Rails programming and am having difficulty with the following scenario... Consider the following model: class Studio < ActiveRecord::Base has_many :movies has_and_belongs_to_many :actors end class Movie < ActiveRecord::Base belongs_to :studio has_and_belongs_to_many :actors end class Actor < ActiveRecord::Base has_and_belongs_to_many :studios

Good Friday Everyone :-). These are my models: Problem -> has_and_belongs_to_many :tags Tag -> has_and_belongs_to_many :problems Now if a tag does not exist and I create it and associate it to the problem it works self.tags << Tag.create(:name => tag) But if I have the tag already in the DB and just want to link it to another problem it does not really like me. I do it

class User < ActiveRecord::Base has_and_belongs_to_many :projects end class Project < ActiveRecord::Base has_and_belongs_to_many :users end class ProjectController < ApplicationController def add_user @project = Project.find(params[:project_id]) @user = User.find(params[:id]) @project.users << @user unless @project.users.include?(@user) # I''d

I am using the proven authorization plugin to defines roles for users, so I can get all groups where a user is ''member'' @groups = current_user.group_memberships I have an habtm association between groups and events class Group < ActiveRecord::Base has_and_belongs_to_many :events .. class Event < ActiveRecord::Base has_and_belongs_to_many :groups I am trying to list

I know that for has_many, and has_one. I can do :dependent => true and the associated object will be destroyed when the main object is destroyed. However, there does not seem to be a dependent like option for has_and_belongs_to_many. Is there one I do not know of? Is there a simple solution to this? Thanks, Brian -- www.kenlet.com

Someone asked me about the history of the method naming in activerecord and I wasn''t sure where to point them. For example, there was early criticism noted of has_and_belongs_to_many in this old post from 2005: http://hans.fugal.net/blog/2005/10/03/habtm/ I was mentioning that many_to_many is not used because there are a few different ways of doing that via has_many :through and

If I have a class, Asset, which has and belongs to many associated Asset objects, how do I do this? has_and_belongs_to_many :associated_assets, :class => "Asset", :foreign_key => ?????, :association_foreign_key => ????? Right now, my table has a :first_asset_id and a :second_asset_id, but I don''t see how the objects themselves are supposed to distinguish one from the

Hi. I have a couple of best practices questions regarding polymorphic associations, naming join tables and user permissions. Currently I have implemented the user authentication model from the rails recipes book. Basically it goes something like this: MODEL CLASSES: class User < ActiveRecord::Base has_and_belongs_to_many :roles end class Role < ActiveRecord::Base

Hi, Song has_and_belongs_to_many :people accepts_nested_attributes_for :people Person validates :uniqueness => true If person record not present, nested attributes working great! in rails way. i.e., inserting into songs, people and people_songs table correctly. I am interested in:- *If there is person exist, it should skip insertion into people table but data should be inserted in songs and

hi all, i''m new to this group and currently using Rails 3.0.3 and meta_where 0.9.10. i''m considering how to make a full-text searching feature to my project, and my models, for example, should be defined like below: class Group < ActiveRecord::Base has_and_belongs_to_many :users # :title (string) end class Comment < ActiveRecord::Base has_and_belongs_to_many :users

I have bdrb successfully set up and running in a local project. It''s doing two things: 1) processing large csv files and using ActiveRecord to insert 2) sending large batches of emails using ActionMailer In development both work well. I see my ActionMailer emails in the log (though it''s the development.log -- odd?) On the production server csv processing works well, but

I''ve just been bodyslammed by a problem with has_and_belongs_to_many - as far as I can tell, if it doesn''t appear at the top of other relationship definitions it doesn''t seem to work right. For example: class Artist < ActiveRecord::Base has_and_belongs_to_many :genres has_many :albums has_many :videos has_many :cds has_many :collections end ..works fine

With association extensions, like user.items.tagged("foo"), how do I access the "user" object from within the extension method? The code would be e.g. class User < ActiveRecord::Base has_and_belongs_to_many :items do def tagged(tag) return "These are items tagged %s from user %s." % [tag, ???] end end but how would I get a hold of