similar to: has_many :through and foo.bars.include?

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''

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''

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

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, while generating the PDF file , i am getting following error.. please help for me. RuntimeError (JPEG marker not found!): C:/Ruby/lib/ruby/gems/1.8/gems/pdf-writer-1.1.8/lib/pdf/writer/ graphics/imageinfo.rb:176:in ` measure_JPEG'' C:/Ruby/lib/ruby/gems/1.8/gems/pdf-writer-1.1.8/lib/pdf/writer/ graphics/imageinfo.rb:174:in ` loop''

At present I have the following models: users <-> permissions <-> objects I wish to expand this to include groups, so that groups can contain users and have permissions (a user might be part of more than one group). However, the only way I see to do this is: users <-> user_permissions <-> objects users <-> group_memberships <-> groups <->

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

Like most people, I''ve got two machines: one for development and one for production. I''ve done everything I can to make sure the ruby/rails environments are the same, but of course they''re not identical (I''ll get into that in a moment). The error that I''m getting happens when I call a method in a background task controller on the production machine; I

hi i am using radiant 0.8.2 , rails 2.3.4, ruby 1.8.7 and rubygems 1.4.2. and i can''t able to run my existing application. error occurred : run command for server "script/server -e production -p 3001" error: => Booting WEBrick => Rails 2.3.4 application starting on http://0.0.0.0:3001 config.gem: Unpacked gem rack-rewrite-1.2.1 in vendor/gems has no specification

Upgraded our app from Rails 2.2.2 to 2.3.4, and I''m now encountering an error when adding a child to a parent. Top of the stack: wrong number of arguments (1 for 0) /Library/Ruby/Gems/1.8/gems/activerecord-2.3.4/lib/active_record/ associations/has_many_association.rb:61:in `save'' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.4/lib/active_record/

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

Is there a place where I can put a method that can be accessed in both views and controllers? Here''s the situation, maybe someone can suggest a better way to go about this: I created my own custom login system with email verification and user roles (basically, I tinkered around with SaltedHashLoginGenerator until I finally gave up and wrote my own). One role, of course, is an admin

In my continued efforts to port my rails 1.x app to Rails 2.1.2, I keep running into what appear to be ActiveRecord bugs. I am using an :include on a :has_many definition: class Request < ActiveRecord::Base has_many :service_types, :order=>''service_types.id ASC'', :include=>:service_response [...] There''s no reason this wouldn''t be supported in

Hi, here is a warningmessage i got while i am testing my new puppet installation with .23.2 and storedconfig and reports and all the bell and whistle :) DEPRECATION WARNING: Calling .create on a has_many association without saving its owner will not work in rails 2.0, you probably want .build instead See http://www.rubyonrails.org/deprecation for details. (called from create at

My application needs to know if a user is an administrator, for security and aesthetic reasons. At the moment, I store true/false in the session by doing the following at login: session[:user_is_admin] = authenticated_user.is_admin? Is this OK to do? Or should I really be doing the following every time: User.find(session[:user_id]).is_admin? (user_id is always in the session too) Is there

I have added roles and roles_users table and updated the model so that my users can have multiple roles. ("Admin" role does always have id = 1). I have added these methods to my application controller. <code> helper_method :is_admin? helper_method :is_user? def is_admin? if @session[''user''] @session[''user''].roles.find(1)

On Mon, 28 Nov 2016 09:49:31 +0100 "Stefan G. Weichinger via samba" <samba at lists.samba.org> wrote: > Am 2016-11-26 um 20:50 schrieb Stefan G. Weichinger via samba: > > > Thanks for the hints, I already read the wiki, yes. > > I will look at the users and groups next week then. > > attacked that now in a VM: > > cpied /var/lib/samba and /etc

I am using the proven authorization plugin to defines roles for users, so I can get all groups where a user is ''member'' @groups = current_user.group_memberships I have an habtm association between groups and events class Group < ActiveRecord::Base has_and_belongs_to_many :events .. class Event < ActiveRecord::Base has_and_belongs_to_many :groups I am trying to list

Hi, test "is_admin method is not visible" do get :is_admin assert_??? end is_admin is protected and should stay that way forever. What assertion do I use? M. -- Posted via http://www.ruby-forum.com/.

I am using authlogic as a authentication engine in my rails app. I have two types of users 1) Users who are registered and has access to there own profile. 2) Admin user who has access to everybody''s profile In the user table i have a :is_admin field boolean field which defines the admin user. like the current_user method, Is there a way authlogic provides which can tell me if the