similar to: validates_uniqueness_of and attr_readonly

Is there a way to prevent an attribute from being changed from outside the class instance? So that after a record is created, the attribute can be read but cannot be changed from outside the class instance. At first glance, "attr_readonly" seems to be the solution. However, will "attr_readonly" also prevent the attribute from being changed even from inside the class? In

I''ve got something like this: class Position < ActiveRecord::Base end class CartItem < Position validates_uniqueness_of :product_id end When I try to save CartItem I get this error: ArgumentError: wrong number of arguments (1 for 2) from /home/joaz/.gem/ruby/1.8/gems/activerecord-2.3.2/lib/active_record/validations.rb:758:in `exists?'' from

A small patch to fix attr_readonly when used in conjunction with optimistic locking Please Review: http://dev.rubyonrails.org/ticket/10188 +1 if it works for you. nick. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Core" group. To post to this group, send email to

Hello, I''m having some issues building r190 on Leopard (10.5.1): $ rake (in /Users/johan/temp/superredcloth) ragel superredcloth_scan.rl | rlgen-cd -G2 -o superredcloth_scan.c ragel superredcloth_inline.rl | rlgen-cd -G2 -o superredcloth_inline.c /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb checking for main() in -lc... yes creating Makefile make gcc -I.

Andy Shipman wrote: > When running spork on a merb application, whenever a spec is run I get > the following error from the Spork server. > > /opt/local/lib/ruby/gems/1.8/gems/merb-core-1.0.11/lib/merb-core/bootloader.rb:1358: > [BUG] rb_gc_mark(): unknown data type 0x3c(0x2203d0) non object > ruby 1.8.7 (2009-06-08 patchlevel 173) [i686-darwin9] > > Which crashes the

I was wondering if anybody knows an easy way to pass a method name as the scope option to a validates_uniqueness_of validation on a AR model? For example, I have nested models a bit like: class Survey has_many :areas end class Area belongs_to :survey has_many :questions, :order => ''position'' validates_uniqueness_of :position, :scope => : survey_id end class

Here is the output when I try to install the gem: Building native extensions. This could take a while... Successfully installed SystemTimer-1.2 1 gem installed Installing ri documentation for SystemTimer-1.2... Updating ri class cache with 6252 classes... /Users/chabgood/.gem/ruby/1.8/gems/rdoc-2.4.3/lib/rdoc/ri/driver.rb: 818: [BUG] Bus Error ruby 1.8.7 (2010-01-10 patchlevel 249)

I have this in a model validates_uniqueness_of :aspect, :scope => :user_id In an instance method of the same model I have "save!" but I don''t touch the :aspect attribute in that instance method at all. Whenever that save! command is run however I get this error: ActiveRecord::RecordInvalid: Validation failed: Aspect has already been taken I don''t

I tried to check validates_uniqueness_of for a MySql enum type column with a scope given, like this: validates_uniqueness_of :phone_type, :scope => :user_id And It didn''t work. When I check the SQL statement for doing this validation, it is like this: SELECT `phone_numbers`.id FROM `phone_numbers` WHERE (`phone_numbers`.`phone_type` = BINARY '''' AND

Hi to everybody, well i recently became a RoR developer, web i was following the video class from Lynda, and i introduce more code in my aplicacion, my application is a music store web site, ok so i add the funcionality of add clients, for that i need from my client, his user and password, so it will be 1 user per client, for that reason i use at my model validates_uniqueness_of :user

I used validates_uniqueness_of it is case insensitive, it takes only admin not Admin. So please help me out how to put validates_uniqueness_of as case sensitive Thanks in Advance Surekha.Matte -- Posted via http://www.ruby-forum.com/.

hi Could I check to strings for uniqueness together and not individually? That means for me in an example: name: sex: result: ----- ---- ------- miller m unique miller f unique jackson m unique miller m isn''t unique So I want to check the name and sex be together unique. The name isn''t

I''m using restful_authentication to let users register and login. Lately, however, I''m seeing multiple login and emails being created even though I have validates_uniqueness_of as below: user.rb validates_uniqueness_of :login, :email, :case_sensitive => false mysql> select id, login, email, created_at, state from users;

I need to modify the validates_uniqueness_of function so that it will check that the string is unique but only in its own category. For example right now I have validates_uniqueness_of :title so let''s say I have the :title "Title 1" already in the database with the :category of "1" then if i wanted to enter the :title "Title 1" in the database again BUT

Hi folks, I have a question regarding validates_uniqueness_of, and similar before-filter-like events attempting to guarantee some DB state prior to modification. >From my reading of ActiveRecord, validate_uniqueness_of appears to cause a SELECT on the underlying table attempting to ensure that a record with ID(s) specified in the validates_uniqueness_of statement is not already present, prior

Hey everyone, I have an application running on dreamhost with fast cgi (FCGI). I have a model, "Member", that has the following validation: validates_uniqueness_of :email, :if => Proc.new{|member| !member.email.blank?} The :if clause is really not needed because an email address is required and in fact the model also has: validates_presence_of :email

Hi, I think I''ve found a problem with validates_uniqueness_of within ActiveRecord. My code is: validates_uniqueness_of :name, :on => :create, :scope => "zip", :message => "has already been taken" yet the docs say that when a record is created, a check is performed to make sure that no records exist in the database with the given value for the specified

Has anybody noticed validates_uniqueness_of missing in rails 3.0 rc2? I''m not sure if this is a bug or I''m just doing something wrong. Here''s what I''m doing. Class 1: class Title < ActiveRecord::Base validates_length_of :language, :is => 3 validates_uniqueness_of :language, :scope => :book_id validate :language,

Just a report about compiler warnings generated when building opusfile from current git. Regards. # x86-Linux builds / gcc48 and clang-3.3 (no warnings) # x86-Linux builds / gcc34 src/opusfile.c: In function `op_calc_bitrate': src/opusfile.c:1777: warning: integer constant is too large for "long" type src/opusfile.c: In function `op_open2': src/opusfile.c:1131: warning:

I have the following ActiveRecord objects: class Recipe < ActiveRecord::Base has_many :ratings, :dependent => true . . . end class Rating < ActiveRecord::Base validates_uniqueness_of :created_by, :scope => :recipe_id belongs_to :recipe, :counter_cache => true . . . end The created_by field on Rating is implemented as a "magic" field similar to this: