similar to: has_many :through ... What am I missing?

Displaying 20 results from an estimated 3000 matches similar to: "has_many :through ... What am I missing?"

2006 Mar 27
2
:through and STI
Hi, I''m trying to use :through and STI using the trunk version of Rails, but I get the following error see bottom of this msg[1] here are my classes. class Player < ActiveRecord::Base end class Ladder < ActiveRecord::Base has_many :subscriptions has_many :players, :through => :subscriptions end class SingleLadder < Ladder end class Subscription <
2006 May 20
1
acts_as_paranoid overrides ActiveRecord::Base??
Guys, I am trying to figure out what exactly does this line do at the end of "acts_as_paranoid" plugin? ActiveRecord::Base.send :include, Caboose::Acts::Paranoid::ActiveRecord My problem: I have some classes that I use acts_as_paranoid, and others with tagging support. Classes declared as taggable, throw error, which appears to be in the acts_as_paranoid version of the
2006 Apr 06
4
Record retrieval in Many-to-many using :through not working
Hello, I get an error while retrieving records from the following model structure. Tables foods - id, food foodallergies - food_id, symptom_id, a few other columns symptoms - id, symptom Models class Food < ActiveRecord::Base has_many :foodallergies has_many :symptoms, :through => :foodallergies end class Symptom < ActiveRecord::Base has_many :foodallergies has_many :foods,
2006 Dec 22
2
Relating Namespaced Models
I am dealing with a large project. I use a lot of STI and therfore have a lot of models. I''d like to use namespaces to help organize my models but am having trouble getting started. I have a base model Term::Base located in /app/models/term/base.rb: class Term::Base < ActiveRecord::Base set_table_name "terms" end I have a non-namespaced client model: class Client <
2008 Jul 08
0
Bug with serialized columns in console ?
Hi, I recently added 2 serialized columns in my class Server : class Server < ActiveRecord::Base serialize :visa, Hash serialize :appli, Array ... No problem in my controller and my application and everything works as expected : Excel exports following the "visa" Hash or "appli" Array are ok. But since I added the visa Hash, I can''t load the record with
2011 May 07
4
Activerecord::JDBCError: Invalid column number
Hi, I''m rather new to Ruby and RoR, so I do not really know whether this ist the right forum to place my question. For my first ''project'' I planned to create a simple online-viewer, which grabs data from an existing database and make them visible in a structured form via browsers. So I thought that could be the right beginner-project, because I have only read datasets
2011 Aug 31
2
stumped on how to reorder factors
I am trying to reorder a factor data type so that when I plot stats associated with the factor, the ordering makes sense. For instance, if I have a factor entered as follows ... A = as.factor(c("1", "10", "3", "3", "10", "10")) levels(A) ... the ordering does not really make sense (assuming I want the factor ordered by integer
2007 Mar 22
2
Enumerable sum oddity
Hi. In this setup "account has_many :consultations". Can anyone explain the following behaviour to me? Rails 1.2.2. The "sum" method should return 0 for an empty array. >> a = Account.find(1) => #<Account:0x39c80a8 @attributes={...} >> a.consultations => [] >> a.consultations.sum(&:foo) ArgumentError: wrong number of arguments (1 for 2)
2012 Feb 29
1
equivalent from gladder and ladder from stata
Dear community, Apologies, I'm still pretty newbie. Anyway, I am performing linar regression analysis. As a common cause of non-normally distributed residuals is non-normally predictor variables, i'm interested in achieving the best transformation of the predictors. I've seen some commands at R, but I would like to know if it exists a command equivalent to gladder (graphic display)
2010 Aug 19
1
has_many :through question
I am trying to create an association table using the ":through" option in "has_many" but not having success. I have created the necessary migrations of the association tables and run rake db:migrate I have the following model: class Group < ActiveRecord::Base has_many :users, :through => :group_user has_many :invites, :through => :group_invite, :class_name =>
2007 May 28
1
upload_column problems on post after validation error
Hi to all the crew ! I''ve a little (big ?) problem. I''m using upload_column plugin, it works very well but it throws an exception when I try to repost the form after a validation error. Here some details: Model: (hostel.rb) HOSTEL_PHOTO_DIR = Proc.new {|inst, attr| "hostel/#{inst.id}"} HOSTEL_PHOTO_THUMB = "100x100" HOSTEL_PHOTO_NORMAL =
2006 Jul 31
2
ambiguous column name in has_many :through
In my application model I have three classes: Accounts, Projects, and Items class Accounts < ActiveRecord::Base has_many :items, :through => :projects, :source => :items has_many :late_items, :class_name => ''Item'', :through => :projects, :conditions => [''due_on < ?'', Time.now], :source => :items end class Projects <
2006 May 28
7
Self-referential has_many :through relationship
Hi, I have a self-referential has_many :through relationship setup to track relationships between users. Basically relationships are modeled as a join table with an extra column ''relation''. create table relationships ( user_id integer unsigned not null, friend_id integer unsigned not null, relation char(1) not null, ) --- relations --- f = friend r = request to
2009 Nov 17
5
has_many :through and foo.bars.include?
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
2007 Jun 23
3
has_and_belongs_to_many and dynamic find
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 #
2007 Jul 17
5
habtm confusion
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
2008 Jan 16
0
[CruiseControl] RubyOnRails build 8649 failed
The build failed. CHANGES ------- Revision 8649 committed by gbuesing on 2008-01-16 20:07:10 Introducing DateTime #utc, #utc? and #utc_offset, for duck-typing compatibility with Time. Closes #10002 M /trunk/activesupport/CHANGELOG M /trunk/activesupport/lib/active_support/core_ext/date_time/calculations.rb M /trunk/activesupport/test/core_ext/date_time_ext_test.rb TEST FAILURES AND
2007 Jul 04
5
stack level too deep
Hi, I have a SystemStackError. Here is the stack (sorry if it''s a little long) : app/models/line_item.rb:14:in `product'' app/models/line_item.rb:14:in `product'' app/controllers/store_controller.rb:188:in `redirect_to_paypal'' /opt/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/ active_record/associations/association_proxy .rb:123:in `each''
2017 Jan 17
2
pcapsipdump or general sip debug question
Hello, There is a built-in tool in Wireshark for this : menu Telephony => Voip Calls, the select your call and click on "Flow Sequence". Best regards Jean Aunis Le 17/01/2017 ? 12:27, Yves a ?crit : > Hi, > > I am using pcapsipdump for debugging sip calls. > > when I have to debug a call, pcapsipdump generates two files per > call... one for the sip dialog
2011 May 17
1
OT, free software for SIP ladder diagrams?
I was debugging a turnup with Global Crossing the other day and they presented me with a web page that displayed a 'ladder diagram' of a call including a ton of detail all neatly organized in tabs and links so you could drill down to any level of detail needed. The copyright notice says 'Copyright? 2008 Empirix.' Is there any free software available to analyze a pcap or