similar to: Re: CRUD pattern for has_many relationships (forms containin

Hello folks! Beare with me for a second, while I explain my problem. Assuming we have the trivial model of class Author has_many :books end class Book end How do people go about creating the authors/edit and authors/new views if you want to be able to add and remove arbitrary amount of Books at Author creation and edit time? What I mean by this is that I go to

Good evening list members, I have the following model: class Author < ActiveRecord::Base has_many :authorships has_many :books, :through => : authorships end Should I be able to do the following? Author.find(:first).book_ids = [1,2,3] I ask, because it doesn''t. The docs state that it should, but it doesn''t specialise in the case of a :through This

Hi All, This is my first post on this list. I''m a developer working on the Central Coast of NSW, Australia and came across RSpec via Lachie who demoed RSpec on Rails at a Sydney rails user group meeting a couple of months ago. I''m loving the expressiveness of RSpec and can''t really see myself going back to Test::Unit. I''ve come across one oddity though. I

Hi Railers! I''m building a new website for our bar-foos-league (league for foosball players who play in bars in Zurich, Switzerland ;-) Being a bit of a noob when it comes to rails and web development in general, I''ve come across a few questions. One concerns sorting of a has_many relationship, for instance. I''ve got a League model, which has_many TeamConfigs

I am currently using acts_as_ferret to search on a Posts table (title and content fields). These posts also have tags (with has_many :tags, :through => :questions_tags). I can''t figure out how to get acts_as_ferret to work with that relationship and allow searching of title, content, And tags at the same time (with the ability to set boost as well). Can this be done? -- Posted via

i need to delete a record from the database and delete all of it''s children as well. is there a method for this? right now, i am finding all the children with the parent_id and destroying them first and then destroying the parent. seems like there would be a better way to do this but i can''t seem to figure it out. thanks, josh -- Posted via http://www.ruby-forum.com/.

Hi, New to Rails and the list. Quick questions regarding has_many relationships that require at least 1 child. I''m aware of validate_size_of and use this to make sure that the parent is not saved without at least one child. Question is, is there some Rails magic to help when removing children to ensure the last one is not removed? Currently I''m calling something like this in my

Let''s say I have the model class Reader and Magazine, connected by join model Subscription. It looks something like this class Reader < ActiveRecord::Base has_many :subscriptions, :dependent => :delete_all has_many :magazines, :through => :subscriptions validates_presence_of :name end class Magazine < ActiveRecord::Base has_many :subscriptions, :dependent =>

I don't get the same result, do you have a package loaded that would change the default behavior (such as Hmisc)? > list(grp.1) [[1]] [1] 1 2 Levels: 1 2 > list(grp.1[mask]) [[1]] [1] 1 Levels: 1 2 > library(Hmisc) <<snip>> > list(grp.1[mask]) [[1]] [1] 1 Levels: 1 --Matt > version _ platform i386-pc-mingw32 arch i386 os

i''m still pretty new to rails, and while i''ve been able to hack my way into having it do what i want so far, i''m not happy with the way my code looks. on top of that, i''m sure that what i''m doing prlly isn''t the most efficient either. one of my biggest problems is probably to do with using relationships and forms together. i''ve

Hi, I''m trying to work out how to tackle a particular problem in rails. I have some data. A lot of data (well not NSA style a lot of data, but a lot for me: 1Gb at the moment, more to come). I''m building a ruby application to process and view this data, and have been working round using rails as a front end - do the heavy lifting using some maths libraries, then use rails to

I have a User model, a Post model, and an Interest model: User has_many posts through interests User has_many interests, dependent destroy Post has_many users through interests has_many interests, dependent destroy Post has_many interests Interest belongs to Post Interest belongs to User Application_Controller is as follows: class ApplicationController < ActionController::Base before_filter

I want to have a parent model that I can add child objects (via a has_many association) using the rails 2.3 nested form syntax. However, it seems like rails throws an error during validation of the parent model if I have a validates_presence_of :parent_id defined in the child model. Is the only solution to this to remove the validates_presence_of :parent_id? This seems like a hack-ish workaround.

I was wondering if anyone knew of a way to combine the new nested forms in rails 2.3 with a has_many through relationship via checkboxes. Basically I have a page model, a page_category model and a category_items join table. Pages have many page categories through category items. The category_items table is polymorphic so i can use it for other models who need categories (maybe this is

I am using nested forms on person model that has many pictures. I would like to allow the user to remove on or more of the associated pictures from the person using nested forms as suggested by Ryan Bates. However delete will delete the picture not remove the associatioon I can do it in the controller, but it should be done in the same way as delete is performed using attribute _delete Anyone

I''m sure there''s something right under my nose that I''m missing. I have two tables with two parallel one-to-many relationships. I wish to use the :finder_sql parameter to essentially ''or'' the two foreign keys. What isn''t working for me is performing a ''sub-search''. Let''s say the tables are "stores" and

I was wondering if it''s possible to some how control the :order given on a has_many depending on another attribute? Or do I need to just create multiple has_many relationships pointing to the same table but with different orders and then select which one I use in the controller instead? e.g class Category < AR::B has_many :products, :order => //something magical?// end

Hi All, I think Im having a mental block here. For some reason I just cant get my head round relationships. What I have is the following. 4 tables 1) Hosts 2) Software 3) OperatingSystem 4) Company In my terms (which are most likely wrong) a company can have lots of hosts, a host has lots of software, a host has one operating system. So should my models have the following relations in them?

Hello, I am creating a gem in which I need to add a new has_many relationships: ... included do |base| base.has_many :foos end def some_method self.foos # end ... Here Foo is a model I created and it is places in app/models/Foo.rb I wonder if I can use syntax like the line marked with #? If yes, I got NoMethodError for using "self.foos" when writing rspec

Hello all, I''m having problems creating a new record with has_many :through My application is quite complicated so I''ll try to explain it as easy as I can. I have a many to many relationship with Projects, IRBs and Reviews. Where reviews is the joined model. In the new project view, I have a link (add IRB). This will add an a list of IRBs to the new project form. I have visited