similar to: Error on update_attributes with HABTM relationship

Hi I am trying to use acts_as_taggable_on in my new projects. But I got Error when I try to save tags. undefined method `each'' for "[]":String NoMethodError: undefined method `each'' for "":String from C:/Ruby19/lib/ruby/gems/1.9.1/gems/ activerecord-3.0.0.beta3/lib/active_record/associations/ association_collection.rb:347:in `replace''

I ran into a problem using options_from_collection_for_select : ActiveRecord::AssociationTypeMismatch (Topic expected, got String): /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/ active_record/associations/association_collection.rb:128:in `raise_on_type_mismatch'' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/

Hi. Im new to Ruby and new to Ruby on Rails and have problems realizing a =20= simple many_to_many relationship: My tables: items <-> items_users <-> users ------------------------------------------------------------------------=20= -------------------------------------- id user_id = id name item_id name ... = password = ...... My Code: class

Bug in associations or not? def has_many if options[:through] collection_reader_method(reflection, HasManyThroughAssociation) <--- FIRST CALL collection_accessor_methods(reflection, HasManyThroughAssociation, false) <-- CALLED AGAIN INSIDE THIS METHOD else .... def collection_accessor_methods(reflection, association_proxy_class, writer = true)

Any idees why I can do this: @sum = @selected.inject(0) { |sum, player| sum + player.value } but not this: @sum = @selected.sum { |player| player.value } @sum = @selected.sum(&:value) The last two give me following error: wrong number of arguments (1 for 2) /Library/Ruby/Gems/1.8/gems/activerecord-2.0.2/lib/active_record/associations/association_collection.rb:164:in `calculate''

Most times I look up a list of books I want to know a page reference for each one, so the views that display booklists expect an array of two-element arrays, constructed via a method in the model like so: (class Category) def book @book = Array.new self.bookshelves.each { |x| @book << [x.book, x.pages] } return @book end When I get the list of all books that a user has

trying to set up a "has_and_belongs_to_many" relationship would very much appreciate the help, not sure what im doing wrong at all. Scheme.rb class Scheme < ActiveRecord::Base validates :schemename, :presence => true belongs_to :user has_many :levels, :dependent => :destroy has_and_belongs_to_many :works end Work.rb class Work < ActiveRecord::Base

Hi I get a following error: ActiveRecord::AssociationTypeMismatch in Cmdb#create ConfigurationItemAttributeValue expected, got Array RAILS_ROOT: ./script/../config/.. Application Trace | Framework Trace | Full Trace c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/active_record/associations/association_collection.rb:128:in `raise_on_type_mismatch''

Without getting too deep into my app I''m wondering if anyone has any clues what might give rise to the error posted below. It occurs when I run my unit tests. class Actor < AR:Base belongs_to :court_case end class CaseCause < AR:Base belongs_to :court_case end class CourtCase < AR:Base has_many :actors has_many :case_causes ... end def my_test_method ...

Hi, I''m really excited about getting the create() method working on a nested hash. The Rails book make it seem like I''m close to doing the right thing but I think something very small is not quite right. The error at the below isn''t giving any hints that I understand. I have a form that produces a nested params hash and sends it to my add_to_cart controller method.

Hi Just curious if anyone can explain why using a dynamic find fails to work with << operator I have standard habtm relationship class User < ActiveRecord::Base has_and_belongs_to_many :roles Now when I assign a Role via << after saving the new User I get wierd behaviour but only when using the dynamic version of find i.e @user = User.new(p) if @user.save #

I had this problem all of a sudden, just changed some puppet classes in my modules, but no particular stuff or no error in the catalog creation. Env : Puppet master version 3.2.0-rc1 Centos kernel 2.6.32-279.11.1.el6.x86_64 ruby 1.8.7 (2011-06-30 patchlevel 352) [x86_64-linux] Info: Caching catalog for jbossvdbmaster.prod.italy.cloudlabcsi.eu Debug: Searched for resources in 0.01 seconds Debug:

hallo everybody, i already googled the following problem, but there are so many questions regarding "has_many :through", that i just couldn''t find what i was looking for. so, i''m really sorry if this has been asked before. if so, just drop me the link. i have a has_many :through relationship similar to the following example: class Group < ActiveRecord::Base

I have a rails app model that I''m getting a strange error that is just baffling me. I''ve stripped everything out of my model down to the basics and still get the error. So, here is the current model: class Metric < ActiveRecord::Base end When I go into the console, and issue a simple "Metric.create" command I get the following error: >> Metric.create

Hi I have two models Keyword and KeywordResult, they basically look like this: class KeywordResult < ActiveRecord::Base belongs_to :keyword validates_presence_of :title, :url, :keyword_id end class Keyword < ActiveRecord::Base has_many :keyword_results, :dependent => :delete_all acts_as_tree :order => "text", :foreign_key => "top_keyword" end Before you

Hi all ! I''ve written a Character model, each character has many Attributes. My schema.rb looks like this: create_table "characters", :force => true do |t| t.string "first_name" t.string "last_name" t.integer "user_id" t.datetime "created_at" t.datetime "updated_at" end create_table "attributes",

Hey guys & ladies! I''ve got the following relationship which i''m trying to get accepts_nested_attributes to work with. But when i submit my form, it looks as if its expecting a Company object, rather than an array of companies. which really doesn''t make sense considering its a has_many :relationship. So what i''m after, is a way to

Pessoal, estou precisando de ajuda... Estou usando o rails 2.3.2. Quando tento fazer qualquer update (método save em um registro existente), recebo o erro abaixo: ArgumentError in RequisicaosController#enviar_rede wrong number of arguments (3 for 1) c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/ base.rb:2875:in `attributes_with_quotes''

Hello friends! I am trying to make a database that will have a group of people set to committees, and a person can be in multiple committees, and a committee obviously has multiple people. The people are senators at my university. These are my current models: senator.rb: -- class Senator < ActiveRecord::Base validates_presence_of :first_name, :last_name, :floor has_and_belongs_to_many

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