Suppose I have a polymorphic structure like this. map.resources :bar, :has_many => :foo map.resources :baz, :has_many => :foo map.resources :qux, :has_many => :foo class Foo belongs_to :parent, :polymorphic => true end class FooController < AC before_filter :find_parent ... private def find_parent # ugly way: @parent = if ...
How do I destroy the association itself and leave the objects being associated alone, while keeping this RESTful? Specifically, I have these models: class Event < ActiveRecord::Base has_many :model_surveys, :as => :surveyable, :dependent => :destroy, :include => :survey has_many :surveys, :through => :model_surveys end class Model...
Hi i have 2 models class User < ActiveRecord::Base has_one :core, :as => :resource validates_presence_of :name end class Core < ActiveRecord::Base belongs_to :resource, :polymorphic => true validates_presence_of :email end For insert a new user i use a form like this: <%= error_messages_for :user %> <% form_for :user, :...
I have a User model, which belongs to Profile (belongs_to polymorphic). One model comes in two subclasses, but the *profile_type* in User always correspond to the parent model. User < ActiveRecord::Base belongs_to :profile, :polymorphic => true SomeProf < ActiveRecord::Base has_one :user, :as => :profile SomeDeepProf1 < SomeProf ...
For an answer model I want to save different types of answer (e.g.decimal, string, text, ...) in different tables. Polymorphic seems the way to go, but how can I receive the users answers from a nested form using fields_for? I now in advance, what type is asked for, but how do I tell in the controller in which table the answer should be...
I'm tempted to say yes. A contrived example, using has_many :through and polymorphs: class Person < ActiveRecord::Base has_many :clubs, :through => :memberships has_many :gyms, :through => :memberships end class Membership < ActiveRecord::Base belongs_to :member, :polymorphic => true end class Club < ActiveRecord::Base has_ma...
I changed my photo.rb model to be polymorphic and be usable to all sorts of other models needing to save images and it works fine except I can't figure out how to save new attachments properly through the parent model. Any ideas? Do I have to approach this differently somehow? As, its also not getting the imageable_type...which i'll h...
Is there a way to find all Polymorphic models of a specific polymorphic type in Rails? So if I have Group, Event, and Project all with a declaration like: has_many :assignments, :as => :assignable Can I do something like: Assignable.all ...or BuiltInRailsPolymorphicHelper.all("assignable") That would be nice. Edit: ... such that...
Hi, I'm trying to implement something similar to Ruby on Rails' polymorphic relationships. I have the following three tables : Events Users Organisations An event can be owner by either a user or an organisation, so my Events table includes the columns: owner_type and owner_id. I can easily list all events that belong to either users...
Hi, It's driving me crazy. I have 3 models. User, Photo, Comments. Here is what I want to do. A user has many photos and comments A photo belongs to a user and has many comments And a comment belongs to user and to a photo So my models have these associations: User has_many :photos, :dependent => :destroy has_many :comments, :de...
How should the keyword_list=(value) method look ? class Keyword < ActiveRecord::Base belongs_to :keywordable, :polymorphic => true end class Article < ActiveRecord::Base has_many :keywords, :as => :keywordable #getter def keyword_list keywords.map {|keyword| keyword.name + ","}.to_s.chop end #setter def keyword_...
I have content management system application that uses a polymorphic tree table as the core of its arrangement. I've come into a problem where once the tree grows quite large, and because we have quite a few different modules (about 25), just doing :include => :instance doesn't cut the mustard. Instance is the name of our polymorphic rel...
When working with a polymorphic association, is it possible to run an include on submodels that are only present in some types? Example: class Container belongs_to :contents, :polymorphic => true end class Food has_one :container belongs_to :expiration end class Things has_one :container end In the view I'm going to want to d...
I struggle to find a model how to store a playlist with different type of items on it in Rails. Consider I have class Track end class Album has_many :tracks end class PlaylistItem belongs_to :playable belongs_to :playlist end class Playable belongs_to :playable, :polymorph => true end class Playlist has_many :playlist_i...
My question is essentially the same as this one: http://stackoverflow.com/questions/1168047/polymorphic-association-with-multiple-associations-on-the-same-model However, the proposed/accepted solution does not work, as illustrated by a commenter later. I have a Photo class that is used all over my app. A post can have a single photo. H...
Is it posible to validate the uniqueness of a child model's attribute scoped against a polymorphic relationship? For example I have a model called field that belongs to fieldable: class Field < ActiveRecord::Base belongs_to :fieldable, :polymorphic => :true validates_uniqueness_of :name, :scope => :fieldable_id end I have several...
Is there an equivalent to Rails-like polymorphic associations in Doctrine? I'm trying to do something similar to: http://railscasts.com/episodes/154-polymorphic-association ...
Hi everyone, Im trying to build a application that has different kinds of users, Im using authlogic for user authentication. So I have one user model that has the required field for authlogic to do its magic. I now want to add a couple of different models that would describe the extra fields for the different kinds of users. Lets say ...
Hi, I have problem with my code class Post < ActiveRecord::Base end class NewsArticle < Post has_many :comments, :as => :commentable, :dependent => :destroy, :order => 'created_at' end class Comment < ActiveRecord::Base belongs_to :commentable, :polymorphic => true, :counter_cache => true end And on attempt go get comments for s...
Is it possible to eagerly load polymorphic association using Linq and NH? For example: Company is base class, Department is inherited from Company, and Company has association Employees to the User (one-to-many) and also association to the Country (many-to-one). Here is mapping part related to inherited class (without User and Country c...