similar to: How to avoid AR confusing way of handling default values for attributes w/ :null => false

I have been trying to model a labeled graph using ActiveRecord (trunk version). Basically, I have a ''Node'' model which represents a node linking to other nodes. Links (aka edges) are labeled (i.e., have a ''label'' attribute and other behavior). Thus I decided to model edges as an ''Edge'' model and use a ''has_many :trough''

How can I get a list of all model classes in the domain of a Rails application (all models, both in "app/models" and in components/somedir/model.rb)? Thanx in advance for your precious help! Edoardo "Dado" Marcora

I am wondering whether one could boost certain fields (e.g., title and keywords) to make them ''weigh'' more against searches across all fields. I know that Document::Field has a boost attribute and that it accepts a boost argument in the constructor (although I''ve had not much luck with it, I am just getting back exceptions upon init w/ boost), but I was wondering

Hi, I am doing my first steps with RoR and I have the following problem: I execute my migration file with the following content on a MySQL-database via Rake: <code> class CreateUsers < ActiveRecord::Migration def self.up create_table :users do |t| t.integer :id t.string :username, :size => 100 t.string :password, :size => 100 t.string :email, :size

Hi all, I''m having a very odd problem with db:migrate. I''m using Rails 1.2.5 on Windows XP SP2 and Ruby 1.8.6 I have seven migrations. If I run them with an empty database, it runs the first three, then halts. When I look in schema_info, the version is 3. If I run db:migrate VERSION=7, then it runs through the remaining 4 migrations, and the version is 7 in the DB.

Hi, I successfully installed AAA couple days before, and i managed to register a uer with it, with no user activation. but for some strange reason, it stops working for the signup method, with i go to the signup page, press submit, it shows an error page, what''s wrong? here''s the error page. undefined method `activation_code'' for #<User:0x3b6dbd

Hi again :), I''m playing with migrations. I''ve created some migrations classes and with rake db:migrate the tables are created and altered fine, but then I dropped some of the tables and when I run db:migrate command again I don''t get tables being re-created. What am I doing wrong? Is there a way to run db:migration in order to drop the tables? -- Posted via

I want to create a migration file that creates multiple tables, so i''m guessing the correct format would be: Can anyone confirm ? I''m guessing that each new create script requires a seperate class so formatted this way. Perhaps I''m wrong. TIA Stuart class CreateTable1 < ActiveRecord::Migration def self.up create_table :table1s do |t| t.column :length,

Hello, I''m learning A.R Associations by creating a simple forum that consists of 3 tables: ahuthors, topics and posts. This is the schema: class AddAuthorAndTopicAndPostTables < ActiveRecord::Migration def self.up create_table :authors do |t| t.column :username, :string t.column :email, :string t.column :created_on, :datetime end create_table

Hi all, I am relatively new to ruby and RoR. I created a simple rails proj named foo by giving command -> rails foo --database=sqlite3 It created a new rails proj.. So in that I created a simple db class named user by using the below command -> ruby script/generate model user so in db/migrate I got a file named 20090421211825_create_users.rb created. and in app/models : user.rb got

Hi, This is my migration: class CreateSampleForms < ActiveRecord::Migration def self.add_data SampleForm.create(:name => ''Default (Empty)'', :f_type => ''Default (Empty)'', :description => ''Use this template to create a blank form.'') end def self.up create_table :sample_forms do |t| t.string :name, :null =>

Dear R users, I would need some help in building R using minGW in windows 8.1. After using the command *configure *(./configure --enable-R-shlib --with-readline=no --with-x=no), I use the command *make. *This results in the following error: [...] make[2]: Leaving directory `/home/Edoardo/r-3.1.2/src/nmath' make[2]: Entering directory `/home/Edoardo/r-3.1.2/src/unix' make[3]: Entering

what could be causing this? * Execute environment ** Execute db:migrate rake aborted! uninitialized constant CreateUsers -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to

I am running the following migration with PostgreSQL 8.2.5. It works fine on my Windows machine, but gives me the below error on Linux CentOS 4.3. Any ideas? Thanks, Chirag class CreateUsers < ActiveRecord::Migration def self.up create_table :uers do |t| t.column :timestamp, :timestamp_with_time_zone t.column :userval, :integer, :limit => 1, :null=> false #will use

hi all, how to excute multi sql statement in rails #------------------------------------------------------- sql_1 = ''drop table if exists test'' sql_2 = ''create temporary table test select * from test_1'' sql_3=''select * from test'' #------------------------------------------------------- any ideas all regards -- Posted via

Hi all, I have a strange situation on a Asterisk 1.2.17 with FreePBX 2.2.1 Doing a select in the CDR table I noticed there are some calls with billsec greater than duration, duration is always 0 in those calls. How can this happens ? Am I missing something ? Tnx in advance Regards Edoardo Serra WeBRainstorm S.r.l.

Hi there, I''ve tried to add a m:n mapping table using the migration mechanism. ruby script\generate migration add_categories_notes_mapping and filled the migration file with: class AddNotesCategoriesMapping < ActiveRecord::Migration def self.up create_table :categories_notes do |t| t.column :category_id, :integer, :null=>false t.column :note_id, :integer,

Hello everyone, I'm in the process of running an Icecast server and I would like to know some best pratices. 1. Should I place Icecast on port 8000 or should I change that to one more common (80, 443...)? 2. Should I place the server behind a webserver like ngingx or apache? 3.Can I disable the login interface? what can be disabled? My best guess is to run icecast behind a webserver,

Hi Guys, we're needing a special implementation on Asterisk Our intention is to contribute the development and share back the code to Asterisk community Here is what we need: - An option to Asterisk Dial command which, if used, when calls is answered gives monodirectional audio (Caller should hear the called party but not vice-versa) - A DTMF sequence (maybe handled in features.conf) for

Hey all -- I''ve been using enumerable char(1)''s with ''y'' and ''n'' values for my Boolean columns in Rails, but it strikes me there should be a better way. How do you setup columns that represent true/false-ness in your schemas on Rails? Wondering what kind of standard approaches there are other than me writing something like class MyEntity