similar to: Has_many :through problems -- please help

In AWDWR David says (pg 232), "When a Join Wants to Be a Model: While a many-to-many relation with attributes can often seem like the obvious choice, it?s often a mirage for a missing domain model. When it is, it can be advantageous to convert this relationship into a real model and decorate it with a richer set of behavior. This lets you accompany the data with methods. As an example,

My application has two models I''d like to have multiple join tables between, Users and Groups. Users have the ability to subscribe to a Group, while a Group would like to know its membership. Additionally, a User can administer several Groups and a Group should know about its several Administators (Users). I have the following declarations: class Administrator <

I see from http://rubyonrails.org/api/classes/ActionController/Components.html that is possible to pass paramaters to a component. I don''t understand the exact syntax. I''m trying: @master_id = @params[''master_id''] in the components controller but it is not working. ==== Details: In my calling view I have: <%= h(@opportunity.id) %> <div

Has anyone who is running OS X 10.4.5 and the security patches thereafter noticed that WEBrick is no longer functioning? I have a machine at school that I believe to be patched with 10.4.5 but not with the latest security patch and WEBrick seems to run fine for it. However, on my machine at home I can''t get WEBrick to successfully run even freshly generated apps. For both

class Host < ActiveRecord::Base belongs_to :person end class House < ActiveRecord::Base has_many :people, :dependent => true has_many :hosts, :through => :person end class Person < ActiveRecord::Base belongs_to :house has_many :hosts, :dependent => true end Now when I try to do: @hosts = House.find_by_id(params[:namas]).hosts from my controller I get this:

Hi, My saves are failing me and I can''t figure out why. I am trying to save an address id to a user object just after I create the address. This isn''t the exact code, but it shows what I am trying to do. class AddressesController < ApplicationController def create @address = Address.new(params[:address]) saved_address = @address.save @user =

I try a ''hello world'' demo here,It only show a ''hello word'' on web page you can see all my codes and structure here http://www.smtservers.com/demo/ I want to access the ruby app like this http://www.smtservers.com/demo/say/hello but I get a 404 error. Please let me know what problem the code have I am new for RoR. I am not sure the site structure is ok or

I am interested in putting the cool syntax highlighting for ROR code. What''s the best way to do that? Is it using textilize or another formatting language? Or do I need special stylesheets? Any assistance is appreciated. Thanks Frank --------------------------------- Yahoo! Mail Use Photomail to share photos without annoying attachments. -------------- next part

I just took my HABTM and turned it into a :through since my join table has another "non-joiny" attribute. I went from this: has_many_and_belongs_to :jobs, :join_table => ''tablename'', :foreign_key => ''x'', :association_foreign_key => ''y'' to this: has_many :jobs, :through =>

In PHP, there was an argument you could pass to the Date function to get the number of days in the current month: echo date("t"); // Outputs "28" for February I don''t see anything like this in Ruby/Rails. Right now, I''m using a very ugly line to pull the last day of the month: @number_of_days = (Date.strptime(Date.today.strftime("%Y-%m-01"))

Hi, Is is possible to call a javascript function once a partial is loaded. Here''s what I am doing. I have a partial that gets updated via. an ajax call. When the partial is updated I want to call a javascript function ( enableTooltips ) which will then add tooltips to my links in the newly updated partial. Any help would be greatly appreciated. Thanks, Eric -- Eric Goodwin

Hi, I am using Flash Dashboard and 3 sets of listbox. When i change my first list box say name i need to dynamically change the second list box and from the second list box when i choose an name i need to change the content according to this in the third list box. How can i pass this datas from database in rails. thanx g.balaji -- Posted via http://www.ruby-forum.com/.

What''s the difference between these two? Objective: Trying to display the addresses of the students that has "has_many" relations with addresses <td><% @student.addresses.each {|address| "Address: #{address.addr1}<br/>"} %> </td> ****** did not work <% end %> This code worked: <td><% @student.addresses.each do |address|%>

I posted something about this a week ago wihtout response, but have made some progress since. However, I''m still not getting exactly what I want. OK, three core tables: create_table :reference_items do |t| t.column :title, :string, :limit => 255 t.column :year, :integer, :limit => 4 t.column :type, :string t.column

I''ve run into a problem on one of my development machines. I''m trying to run multiple rails apps on one dev machine that runs Windows. Problem is that is seems that I can only run one scgi_service at a time, meaning that only one of my apps will function at a time. Anyone know how I can get around this, other than getting a *nix box (which I should have soon, hopefully) ?

I wonder if you can have more than one has_many :through association between 2 models. For example... I have a model Teacher and a model Class Now, 1 Teacher works in many Classes, right?. So I need a join model like class Work < ActiveRecord::Base belongs_to :teacher belongs_to :class end But I also would like to know if a teacher CAN teach a class before I

Hi, I''m attempting an install of active_rbac but am having some troubles. I''m running Debian 3.1 sarge and I am getting an error saying that I need to have net/https installed. I checked out my ruby lib and net/https.rb is nowhere to be found. I''m running the default ruby for Sarge which is 1.8.2. Was https.rb not included in this build? How can I get around this? I

Hi, I''m trying to do a find with a condition that has an OR on the same column. Say I only want to use find() but not find_by_sql(). I reduced my problems into the following: values = [] ... # filling up values from params Order.find(:all, :conditions => ["(action = ? OR action = ?) AND price = ?", values] For example I

Hi all, If you''re like me you probably spend a lot of time search the Rails mailing list. To make life a little bit easier I''ve created a nice little plugin for firefox ( A whopping 15 lines of markup ). The plugin uses nabble.com to search the mailing list. Anyways, I thought I''d share. If you want to install it the manual way, here''s the code. <search

I read in the Agile Rails book that I should avoid GETs for destructive actions. I notice that on 37signals'' Backpack web site, deleting an item in a list is accomplished with a simple click on a picture of a trash can. Is this a violation of the POST/GET rule noted above, or is there some way to make a clickable link send a POST? Ben