similar to: validates :uniqueness apparently doesn't

I have this in a model: class GenreBadge < ActiveRecord::Base belongs_to :game, counter_cache: :genre_badges_count, touch: true belongs_to :genre validates :game_id, uniqueness: {scope: :genre_id}, allow_blank: true end When I get one existing genre badge genre_badge = game.genre_badges.first genre_badge.game_id = nil genre_badge.save! It creates an validation exception:

In a Rails 2.x validation to check if the name of some model is unique within a some category, I would use: `validates_uniqueness_of :name, :scope => :category_id` In Rails 3, this is replaced with: `validates :name, :uniqueness => true` However, I can''t seem to find a method of defining the uniqueness'' scope. Am I missing something? Thanks, Angelo -- You received

This is some feedback for rubyonrails.org. My apologies if this is the wrong forum to bring this up, but I wasn''t able to find a "Contact us" link on the site. As of this writing, if I go to Google and search for "active record observer validations", the top 2 results are: http://guides.rubyonrails.org/active_record_validations_callbacks.html and

Hi All, I am one of the contributors to the FastR project ( https://bitbucket.org/allr <https://bitbucket.org/allr.>) and I have encountered an interesting issue when trying to implement vector accesses within FastR. I am trying to understand what kind of error message should be generated for the following expression: x<-1:4; x[[1]]<-NULL; x In order to determine the error message,

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

Just wondering if validates_presence_of() has been deprecated in favour of validates(:name, :presence => true) or we can prefer to use any? Asking so, since NetBeans 6.9 shows a deprecation warning, however I can not find any such deprecation message in documentations/code of Rails 3.0.0.beta4 and on web. -- You received this message because you are subscribed to the Google Groups "Ruby

Hello, The uniqueness validator was always case sensitive but that seems wrong because we want uniqueness validations to be insensitive in most of the time. Do not make more sense be insensitive by default and set sensitive only where it should be? We are migrating a lot of big applications from mysql to postgresql here and we are setting case sensitive to false on **all** uniqueness

I would like to validate the uniqueness of two columns together. I have last and first names as separate columns. What is the Rails Way to do this? Thanks, Jared Nuzzolillo _______________________________________________ Rails mailing list Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org http://lists.rubyonrails.org/mailman/listinfo/rails

my app seems to be running fine in dev mode ( Rails4, Devise, OAuth2 , Doorkeeper ) but looking at the console , I can see all log lines duplicated .... where should I look for any tricky bug or missing param ?anyway to get more info on what''s happening ? thanks a lot for feedback (ruby-2.0.0@rails40)$ rails server -p 4000 => Booting WEBrick => Rails 4.0.0 application starting

Hello: As seen in some of the MP3-oriented P2P programs and audio organizing tools, the underlying uniqueness of a given mp3 file can be learned (for the most part) by, for instance, taking a hash of the first 300,000 bytes of the non-id3 tag content of an mp3 file to obtain a content signature (This hash could then further be paired with the length of the non tag portion of the entire file for

Hi fellow programmers, I was looking for how to keep integrity in some financial transactions and I saw this "This could even happen if you use transactions with the ‘serializable’ isolation level." in the uniqueness page http://api.rubyonrails.org/classes/ActiveRecord/Validations/ClassMethods.html#method-i-validates_uniqueness_of. How this is possible with the serializablo

i just ran into a problem with some test, and i am not exactly sure why, but the difference happened when i changed my model validation from: validate :custom_validation to: validate_on_create :custom_validation can someone give me any ideas on where in the chain the validation takes place? thanks! -- Posted via http://www.ruby-forum.com/.

Hi All, I am trying write a validation rule where I need to ensure that when a certain value is updated or created in a particular columns, a number of other columns columns are unique and that another column does not contain a certain value. I have been able to use the validates_uniqueness_of :column_a (to be updated or inserted) with , :scope => [ :column_b , :column_c , :column_d ]

Hi guys, I have a feature request of email notification on forum. (Just like what this forum has) I am wondering if there is a rails plugin that does this. Any suggestions and ideas are welcome! Thx in advance. -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group,

Given the models Country, State, City and Person as follows. class Country < ActiveRecord::Base has_many :states end class State < ActiveRecord::Base belongs_to :country has_many :cities end class City < ActiveRecord::Base belongs_to :state has_many :people end class Person < ActiveRecord::Base belongs_to :city end Is there any way that doesn''t allow to delete

I''m using accepts_nested_attributes as follows: class Timesheet < ActiveRecord::Base attr_accessible :status, :user_id, :start_date, :end_date, :activities_attributes has_many :activities, dependent: :destroy has_many :time_entries, through: :activities accepts_nested_attributes_for :activities, allow_destroy: true end class Activity < ActiveRecord::Base attr_accessible

What am I doing wrong?? ****@ubuntu:~/ruby/things_i_bought$ rake db:migrate Rails 4 prefers to run on Ruby 2.0. You''re running ruby 1.8.7 (2011-06-30 patchlevel 352) [i686-linux] Please upgrade to Ruby 1.9.3 or newer to continue. ****@ubuntu:~/ruby/things_i_bought$ ruby -v ruby 2.0.0p0 (2013-02-24 revision 39474) [i686-linux] ****@ubuntu:~/ruby/things_i_bought$ rvm

Hi All, I''m newbie to this tool and following some tutorials I''ve came across with this problem when configuring my webpage: In Debian/testing, ruby1.8, rails1.1 I create my audio application which connects to a database (mysql) named audio with tables: articulos(id,titulo,descripcion,created_on,categoria_id) and categorias(id,titulo) after creating and modifying the

I''m looking for the best way to use validation to confirm that an optional field (hostname) is unique only if a value is entered in the form. I was originally following the path shown in Agile Web Development with Rails first edition, page 66, to define the "validate" method, but didn''t have a clue how to include a uniqueness test there. Right now, I have the

Hello all, I am trying to do a Rails + AJAX call validation to check for the uniqueness of a field, by crawling the back end DB and return an appropriate message based on the result. I am on Rails 3.0.11. Your kind inputs on what could be the best way to tackle this would be of real help. Is there a ruby gem / js plugin / jquery plugin that I can make use of? Any blogs links implementing the