similar to: when is model() needed?

I read in the instructions of Tracks that "upgrading via the rake migrate command is quite a bit more tricky currently with SQLite and SQLite3". Is there any gotcha regarding migrations and SQLite3? -- fxn

I would like to embed my login form on my app''s home page. What''s the best way to render the login action of member controller from another action? Thanks Frank --------------------------------- Relax. Yahoo! Mail virus scanning helps detect nasty viruses! -------------- next part -------------- An HTML attachment was scrubbed... URL:

What''s the standard way to prevent race conditions in controllers? Say user has many posts. Post controller has action add_post that receives user id, post controller find()s the user and while he is creating the post entry an administrator deletes that user in a separate session. We cannot assume the database checks foreign key integrity. How do you get that right? -- fxn

A view display.rhtml sees no controller state variables set in the corresponding display action. Why? -- fxn

friends of the int-arweb. what does this mean: (in bold) ActiveRecord::StatementInvalid in Contact#create SQLite3::SQLException: SQL logic error or missing database: INSERT INTO contacts Context: this happened after I had finished setting up RoR as per the tutorial at http://maczealots.com/tutorials/ruby-on-rails/ the database, is like, there. is there a nice ruby command like deal to

There is a solution to use helpers from controllers ? I have an error : |undefined method `content_tag''| class ApplicationController < ActionController::Base def test return content_tag("a","test") end end

I want to load about 14000 words (a subset of /usr/share/dict/words) into a MySQL table in a migration: class CreateWords < ActiveRecord::Migration def self.up create_table :words, :force => true do |t| t.column :word, :string end say_with_time ''loading words...'' do words = File.join(RAILS_ROOT, ''db'',

According to the documentation<http://api.rubyonrails.org/classes/ActiveSupport/Inflector.html#method-i-humanize> of ActiveSupport::Inflector: *humanize*(lower_case_and_underscored_word) Capitalizes the first word and turns underscores into spaces and strips a trailing “_id”, if any. * Example: humanize("employee_salary") # => "Employee salary"* I would

I am pondering the possibility of encrypting/decrypting some fields in a SQLite backend on-the-fly. The point of the message is not security, I know that''s broken, but whether there''s a technique that provides on-the-fly save/read filters. Of course the solution would need to work transparently in joins, so user.posts.last.title would do the right thing if title

I am using mongrel_cluster with mod_proxy_balancer and would like to enable compression (assuming it improves throughtput) and limit file size upload. I configured mod_deflate and LimitRequestSize in Apache, but in my trials looks like the proxied calls bypass those directives (the conf goes below). Is there a way to get this? -- fxn # Adapt this .example locally, as usual. # # To be

I have a SQL Server column named StartTime of (SQL Server) type datetime If I attempt to set the attribute using public def StartTime=(time) write_attribute(:StartTime, "{ts ''1899-12-30 #{time.hour}:#{time.min}:#{time.sec}''}") end it''s inserting a NULL value. Anyone else able to successfully insert a date time value into a SQL Server table using

Let''s imagine we are modelling a company that have several shops. I have a Worker model and a Shop model. A worker belongs_to a shop, and each shop has_many workers. But, in a shop there''s a distinguished worker that is the supervisor create table shops ( ... worker_id integer -- the supervisor ); How would you express this relationship?

I have an application that worked fine, but after the recent updates has broken in some calls to render_component from views. I might be missing something but as far as I remember Rails updates is the only thing I''ve done in between. See the log: *** START LOG SNIPPET Start rendering component ({:params=> {:center_id=>10, :id=>25},

class User end class Agent < User end script/console production User.find_by_name ''john'' SELECT "people".* FROM "people" WHERE ((("people"."type" = ''User'' OR "people"."type" = ''Manager'') OR "people"."type" = ''Agent'')) AND

My application uses only UTF-8. Which is the canonical place to do something global like setting $KCODE? -- fxn

I would like to distribute Iconv for Windows with my Rails application (developing on a Mac, no experience with dlls). I threw iconv.dll and charset.dll under lib without luck. Where would I need to put them (if this is possible at all)? -- fxn PS: The reported error message is in Spanish but translated reads something like "the specified process was not found: Init_iconv".

Hi, Suppose I have a resource such as http://localhost:3000/topsecret/data that requires the user to login first. What I did was make use of before_filter to check and see if the session variable is set with the logged in user''s id (similar to the example in "Agile Web Development with Rails"). However while the filtering function does work correctly in redirecting the

There is a dedicated section about eager loading in the docs. A coworker discovered eager loading does not work in polymorphic associations the hard way :-) so I''ve written a patch that documents it: http://dev.rubyonrails.org/ticket/10610 There are at least a couple of tickets that implement something that would change that though: http://dev.rubyonrails.org/ticket/9640

I''m trying to get the unit testing for a new project to use the wonderful :memory: database specification for SQLite. However, like many people before me, I can''t get the schema to import or have anything else useful. Initially, the error I get is: /usr/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.1.0/lib/sqlite3/errors.rb:94:in `check'': cannot rollback - no transaction is

I have an application with 15 migrations under version control. In a Mac and and in a Windows, a rake migrate from scratch runs them all just fine. But in a different Windows machine rake migrate stops after migration 3 for no apparent reason. --trace seems normal. No error is reported. Both Windows are XP SP2. They all have the same svn revision and Rails-related software, database is