similar to: What syntax is this? belongs_to :Person

I''m having a hard time figuring out how to build my application using Rails. As i go along, simple questions occur to me like: are you supposed to have a separate model class (each in its own file, in the app/models directory) for each table in your database? You''d think that something as basic as this would be laid out in the introductory documentation but, alas, the

Under Rails 2.3.2 using a completely brand new project, I have 2 models: class Author < ActiveRecord::Base # name:string end class Book < ActiveRecord::Base # title:string belongs_to :author # author_id end And a simple test where i create a Book with an Author using the belongs_to and then update the foreign key directly: require ''test_helper'' class BookTest

I want to share everything about a model except the db connection. Is this a reasonable way to do it? module NotebookDefinition -- Posted via http://www.ruby-forum.com/.

In a belongs_to association, is there a way to tell if the associated object was newly created? Hopefully this will explain my question: A Firm class declares has_many<http://api.rubyonrails.com/classes/ActiveRecord/Associations/ClassMethods.html#M000530>:clients and a client class declares

Hi, I have a situation I''m hoping someone out there may be able to shed some light on. I have a Rails app (2.1.0 on Ruby 1.8.7) with a wizard-based sign up process, that has recently been changed from storing incremental data in the database to having a medium sized object graph living in the user session until the user completes the entire sign up process (this is a business

Reviews Wanted. I''ve read the tables of contents and haven''t yet made up my mind. Is one book clearly better than the other? Is one clearly full of bugs? Is one so much further ahead that there is no choice? Are they both so incomplete that I should just wait and only cook real food? Do trains still have dining cars? Warren Fred -------------- next part -------------- An

I am furiously trying to find what I am looking for in Pickaxe book and not finding it. I''m getting some values back from a posted form and I need to get the ''id'' number off the backend. The ''String'' will always come back to me as... Some_name\r\n123 where 123 is actually the id number which I need to execute the find. The reason they are coming back

i''m very new to the rails scene and am seeing lines of code like attr_reader, attr_writer, attr_accessor, etc... and have no idea what they do. reading the section in the book i''m reading that explains the previous block of code says nothing about it really. -- Posted via http://www.ruby-forum.com/.

I''m sure this is really obvious but I''m feeling my way here with rails (and Ruby) and have tried a couple of things without success. So, can anyone tell me the best way to reverse order the retuen list of ancestors. In the controller I have: @ancestors = @category.ancestors which returns an array starting at the parent and ending with the root. When I then loop through the

Hi there, I am a newbie and interested in learning Ruby on Rails. I see there are 2 books out there: Ruby for Rails Ruby techniques for Rails developers David A. Black and Agile Web Development with Rails : A Pragmatic Guide (Pragmatic Programmers) Dave Thomas, David Heinemeier Hansson, Andreas Schwarz, and Thomas Fuchs Which one should I get? "Agile Web Development with Rails"

Hi ! I just have a simple question. I am writing an app using rails to familiarize myself with the framework (which is pretty cool, by the way). I just wanted to know why these two work differently (since "find" should be a synonym for "detect" according to the Pick Axe) : current_item = @invoice.line_items.detect {|i| i.product.id == key} current_item =

Hi all, Is there a way to invoke validations at times other than save, create and update? I know that I can do this by writing my own validation checks using errors.add_[blah], but I''d like to leverage the existing validation code. What I have is two sets of fields in a record, set A and set B. Both sets must be validated on record create. However, the trouble is that after

Hello! I''m looking for assistance EXTENDING an example from the Agile Web Development With Rails book: Composing Data with Aggregation (page 324). I''m trying to map three columns to a single Ruby object. However, unlike the example in the Agile Web Development book, the three columns I want to map into one object come from THREE DIFFERENT models. I want to map the following

Hi all Guess it''s time for me to dig a bit deeper into the ruby language. Can you recommend some good starting books on ruby programming? Thanks. -- Med venlig hilsen Juri Rischel Jensen Fab:IT ApS Vesterbrogade 50 DK-1620 København Tlf: 70 202 407 / Fax: 33 313 640 www.fab-it.dk / juri@fab-it.dk

One of my models has a column that is updated very frequently from a separate process, so it is important that when a record is saved in rails, this column should be left alone. In the update method of the controller I have: @record = MyModel.find(params[:id]) @record.update_attributes(params[:my_model]) params[:my_model] doesn''t have a reference to the column I''m talking

Hey :) I need to simulate a login in my functional test, otherwise I can''t GET nor POST to the action. I need to set the session key "logged_in_user_id". I tried this inside the setup() method: session[''logged_in_user_id''] = 1 But that throws: TypeError: can''t convert String into Integer Any ideas? Thanks, Rob -------------- next part

I am currently working on a small database project to track company assets. Right now my Database consists of 3 tables. 1 for the equipment, 1 for the users info, and 1 for the type of equipment. I have all 3 databases working on a model test site using RoR. Where i am having trouble is getting the databases to talk together. I can''t find this answer anywhere else. My main table

I''m new to Ruby and RoR but excited to learn what I can do with RoR; I have Pickaxe second edition and want to get "Agile Web Development with Rails" but I''m aware that the book was published some while before RoR version 1.0 was released. Has a lot changed since then, and would I therefore be advised to wait for a second edition of AWDwR? Many thanks in advance

I''m trying to figure out how to turn a string into an object. Can anyone point me? Here''s some background. Here''s the part of what I''m trying to do that works. ------------------------------------- @ford = [''mustang'', ''pinto''] make = ''@ford'' puts eval(make) --> produces mustang pinto

Hi, According to the example below this email, attr(x,"names") is the same as names(x). I am wondering how many attributes there are of a given variable. How to find out what they are? Can I always use some_attribute(x) instead of attr(x, "some_attribute")? Regards, Peng > x=c(1,2,3) > attr(x,"names")=c("a","b","c") > x a b c