similar to: optional has_one association

Displaying 20 results from an estimated 30000 matches similar to: "optional has_one association"

2008 Feb 19
0
Issue with Observers and has_one association...
Hey Guys, I''m getting a peculiar bug working with Observers and has_one associations. When a has_one association is invoked by an Observer it always returns null. I looked in the development.log file and the SQL for the has_one association isn''t even being executed. On the other hand, when I replace the has_one association with just a hand crafted method, it does get called
2008 Sep 29
1
has_one :through with :source. How to alias association?
Hi to everyone, I have the following models: class Attachment < ActiveRecord::Base has_attachment :content_type => [:image, ''application/pdf''], :max_size => 3.megabytes, :path_prefix => ''../private/attachments'', :storage => :file_system, :processor => :rmagick,
2009 May 25
4
after_create and has_one association bug?
Hello, I''ve come across an issue that I''m sure is a bug when using after_create with a has_one association, but I''m not 100% certain if I''m missing something. This is pretty much exactly the code I''m using. Two simple classes (Account and Contact) and I create the contact after I create an account (via after_create). I''m not passing in a
2007 Mar 01
0
association extensions - has_one
Hi, I''m struggling with something that must be very common pattern, and want to do it the correct rails/ruby way but am a bit dense ! I have users - an admin user, registered users and a guest user (using ModelSecurity) For many of linked associations I want the admin to be able to list or edit all instances, the registered user only their own one and guest none at all. So somehow I
2014 Apr 19
0
How to has_one/belongs_to association only return the objects unassociated in combobox?
I have two models (Car and Driver) and a combobox to select which driver belongs to which car. I want the combobox just show the objects that have not yet been associated. # vehicle belongs_to: driver # driver has_one: vehicle # simple_form # vehicle/_form.html.haml = f.association: driver, label_method: :name, value_method: :id How to ensure validation before saving, to avoid problems of
2010 Mar 29
0
Polymorphic association and has_one retrieval issues
class Address < ActiveRecord::Base belongs_to :addressable, :polymorphic => true end class Client < ActiveRecord::Base has_one :address, :as => :addressable end Now I''am able to create a correct entry in the db for address with addressable_id = 1#client_id addreassable_type = ''Client'' but when I retrieve client = Client.find(1) --> return client
2007 Aug 03
0
acts_as_paranoid and Association Extensions (has_one troubles)
Hi... Isn''t there a proper way or hack/workaround for the following? * For the example with unfortunate disabilities.. look below,,, Usage of has_* (associationmethods) do {def with_deleted AccociatedModel#with_scope} {Paranoid''s#find_with_deleted}... The has_one associations give me a nil object when invoking it with Model.association_OBJECT.with_deleted. Has_many does like
2012 Aug 17
3
Rails doesn't validate create_model or build_model (has_one association)
I''ve got User has_one Shop. Rails is not validating when I tried create_shop or build_shop, neither in the browser nor the rails console. My code: class Shop < ActiveRecord::Base attr_protected :user_id belongs_to :user validates_presence_of :name, :primary_address, :city, :country_code, :currency end class ShopsController < ApplicationController before_filter
2006 May 16
1
saving a has_one association question
Hiall, Say I have class User has_one :community end class Community belongs_to :user end Will the following work and both save user and community if validation doesn''t fail? user = params[:user] user.community = params[:community] user.save Or do I have to do something like the following user = params[:user] if user.save user.community = params[:community] end to be on the
2010 May 05
0
Auto_complete with has_one association
Hi, Have an issue with the rails auto complete, it works fine but I don''t know how to find the id element search in the textfield. Here is what I''ve done: <%= text_field_with_auto_complete :user, :ville_name, { :size => 15 }, { :url => formatted_villes_path(:js), :method => :get, :param_name => ''search'' } %> Model: class User <
2013 Mar 05
4
searching model and has_one association
Howdy. I have these models: User, field "mundane_name" user has_one :instructor_profile (may or may not exist) instructor_profile, field "sca_name" belongs_to :user I would like to craft a search on these fields, which is effectively this, but in one go: matching_users = User.where("mundane_name ILIKE ?", "%#{target}%") matching_profiles =
2008 Sep 16
3
has_one :through eager-loading problem
I have a problem with the :include option in find for my has_one :through association. I have Users, Profiles and Customers, all connected to each other with a has_one :through => :membership association like this: class Profile < ActiveRecord::Base #could also be user or customer has_one :membership # i saw an acrticle of Ryan about has_one :through, there this would be has_many, is
2006 Nov 04
0
one to many relationship; has_one
I''m new to ruby and rails and as a result am a bit lost on implementing a one to many relationship. In my DB I have 2 tables contents and locations, contents contains the foreign key location_id. I generated a content and a location model using rails scripts and then edited the models as follows class Content < ActiveRecord::Base has_one :location end class Location <
2012 Nov 19
0
has_one :through NoMethodError: undefined method `klass' for nil:NilClass when doing class_name on reflection
Not sure if this is expected or not. Only happened with a has_one :through I had setup. (Workaround is just to remove it and go through the association manually vs has_one ..., through: .) Not a big deal if no one has time to look at it, as it''s not a big enough deal to look into a fix on our side. In Rails (3.2.9) console if I do: MyModel.reflections.each {|name,reflection|
2006 Sep 27
5
Question about has_one
I have a question about regarding the use of ''has_one'' in this scenario: Schema: User ---- id first_name last_name UserMessage ---- user_id message_id Message ---- id Assuming business rules dictate that a Message can have at most ONE User (let''s assume a message can be created without a user associated to it), these are my questions: 1) How would I use has_one
2006 Aug 09
0
association dows not grt foreign key
I have a 1 to 1 relationship using a similar example as below (has_one, belongs_to) but when I do the save, the foreign key of the child object is not set to the id of the parent object in the relation ship any ideas? cheers dion --------------------------------- class Person < ActiveRecord::Base has_one :address validates_presence_of :email --------------------------------- end
2006 Aug 09
0
Re: association does not get foreign key
On 8/10/06, Dion Hewson <dionhewson@gmail.com> wrote: > > I have a 1 to 1 relationship using a similar example as below (has_one, belongs_to) > > but when I do the save, the foreign key of the child object is not set to the id of the parent object in the relation ship > > > any ideas? > > cheers > > dion > > --------------------------------- > >
2006 Jun 21
1
ActiveRecord has_one default value
My apologies if this is a dumb question, but I''ve searched around and haven''t been able to come up with a solution. Is there a way when specifying a has_one association to specify a default value for an object if data is missing in the child table. For instance: class Student has_one :university end if no university is associated to the student in the database, I would
2007 May 29
1
YAML fails when has_one is null
My model has_one :association If I call model.to_yaml (or y model) in the console, and the association is nil, I get a yaml error. Anyone else get this? Is this a confirmed bug? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to
2006 Jun 19
0
has_one frustrations, please help!
Hi everyone. I''ve been bending my head around a has_one association for about 3 hours now and I can''t get it to work. I''m pretty sure it''s not something I''m overlooking anymore. Here''s the essential part of the schema I''m working with: ----- t :topics c :id c :last_post_id t :posts c :id c :topic_id ----- Topics are simply named