similar to: Easy way of dealing with nil properties in templates?

I''m trying to figure out how to change the order of a list view and it''s obvious to me that I don''t understand what I get from a simple scaffold to know enough to alter it. If someone would be so kind to tell me what this means ... def list @placment_pages, @placements = paginate :placements, :per_page => 10 end @placement_pages, # I am guessing that this

I''m using a find with a :joins clause, like this: :joins => "JOIN table_b ON table_b.id=table_b_id" The records returned are used in a scaffold generated list page. The edit, show, and destroy links are getting the wrong id. They are getting the id of the table b record. When I run the query using mysql, I see that the query returns *2* id columns, the id of the main

I''m interested in making a low volume rails application very available. This means that I would like to have an alternate server for those times when the primary server is unavailable for whatever reason. Virtual private servers are fairly inexpensive so one could have a rails application on 2 different vps systems (not on the same server, possibly not even in the same city).

I''m trying to get an application running in a sub directory of a site using apache and scgi. The application runs fine with webrick. I have a site. Let''s call it "mysite.org". There is a variety of content on that site. I would like to add a rails application to that site. Let''s call the application "myapp". So we will have urls of the form

Hi everybody, this is a little OT. We are using Lighttpd as a webserver for Rails. Our problem is that when we rotate the logs everyday at the end of the process, lighttpd stops writing the logs. To solve this we have to restart the server manually each time. We use a common Debian, lighttpd-1.4.7, Rails 1.0 and fcgi-2.4.0. I have tracked the lighttpd bugs, and I haven''t found

The view file (eg. apps/views/items/list.rhrml) is still displayed even when the action is hidden (hide_action :list). How can I hide view file form being automatically displayed in this circumstance? thanks, jigar -- Posted via http://www.ruby-forum.com/.

Hello everyone! I''ve noticed, that the book uses double quotes almost everywhere. It is like <%= javascript_include_tag "prototype" %> I''ve checked the "programming ruby, 2ed" book and found that double quotes are most suited when escape sequences and substitutions are required. Isn''t it more semantically correct to write this code like

I have a model with a belongs_to association. The first model is called Thing and the associated model is User. I''m attempting to assign the user to the thing. To accomplish this I used a before_save method, like this: class Thing < ActiveRecord::Base belongs_to :created_by, :class_name => "User", :foreign_key => "created_by_user_id" def before_create

I just spent a few hours tracking down a bug in Rails 1.1, so I thought I''d post the issue and a workaround just in case anyone else hits it. I designed a security enhancement so that controller methods can be protected by preceding them with a role. The standard Ruby method_added() callback is used to detect when controller methods are added, and then I manipulate the

Hi'', I''m looking for a way to increment variable in template (erb file). I tried this, but it didn''t work Compteur <%= compteur %> > <% compteur = compteur + 1 %> > Compteur <%= compteur %> > I''ve got this error : > Error 400 on SERVER: Failed to parse template test/test.erb: undefined > method `+'' for

Filter chaining appears to behave in differently than Rails 1.2.x. It seems that I''m getting a lot of errors along the lines of: ActionController::ActionControllerError: filter #<ActionController::Filters::ClassMethods::BeforeFilterProxy:0x322f468 @filter=#<ActionController::Filters::ClassMethods::SymbolFilter: 0x322f4b8 @filter=:login_required>> was in the wrong place!

I have a common situation and would like best practice suggestions from some of you more experienced rails developers. In my DB I''ve normalized tables in a traditional manner, e.g. I have Posts which have authors stored in a Users table. My problem is when I go to show a list of Posts and I want to display the author name (e.g. post.author.name) ActiveRecord appears to do a SELECT

So that we can write controller code inside helpers ? are we supposed to do that ? -Pratik -- rm -rf / 2>/dev/null - http://null.in "Things do not happen. Things are made to happen." - JFK

Hello, Is there a better way to do the following in a view? <td>Manufacturer <td><%= @equipment.manufacturer.name unless @equipment.manufacturer.nil? %> -- Posted via http://www.ruby-forum.com/.

I seen some RoR code that went like this: <% if ...blah, blah... -%> .. blah, blah <% end -%> What are the minus signs for in the if statement? Cannot seem to find anything about this, and searching on "-" in this context is hard to get anything meaningfull back. Thanks, - Mark -- Posted via http://www.ruby-forum.com/.

Cheers, I''ve stumbled over a bug with 1.0 and ActiveRecord store for session while migrating from pstore sessions. I created the table with `rake create_sessions_table` and set `config.action_controller.session_store = :active_record_store` in environment.rb. Everything runs fine except that the flash messages will not be cleared. I get the same message everytime on everypage I

I would like to have a field on a form that does *not* have an underlying column in the table. Yet I would like to perform some validation on the value. I would like the results of the validation to show up just like the validations that are performed in the model. This is very similar to the password_confirmation field on a sign up screen. The password_confirmation is there on the screen, but

This may be more of a Ruby question, but I wasn''t sure. Is there a way to run a find on a model and then save two fields as key => value in an array for each row. Then use this array on the template for checking if various checkbox or select values are checked? I''m trying to avoid running one query to check the value for each box in the form. - Kyle

Hi, I have problem to understand this line does exactly? this is from the class ConnectionSpecficication, methode "active_connections" def self.active_connections #:nodoc: if allow_concurrency Thread.current[''active_connections''] ||= {} else @@active_connections ||= {} end end what the line "@@active_connections ||= {}" means exactly? as I

My code is something like this. class FirstController < ApplicationController def foo #some processing render (:controller => ''second'', :action => ''index'') end end I tried using both render and redirect but it seems it''s not possible to send the control from within a controller to some other controller. Am I missing something