similar to: Set a select box with default value selected

Hi, I am quite new to ROR.I am trying to create a rails simple application that has informations about Books and Subjects.Srangely, I finished creating a basic application, and it worked fine. But then , I just tried to add some more values in the database, and faced problem with migration, that just made me crazy. SO I deleted the database and did the database and migration thing all over again

Hi, Can''t get the rails demo to run. I''ve started the webrick server. Here is what the output looks like: ----- [root@chat demo]# ruby script/server => Booting WEBrick => Rails 2.3.3 application starting on http://0.0.0.0:3000 => Call with -d to detach => Ctrl-C to shutdown server [2009-08-18 21:29:41] INFO WEBrick 1.3.1 [2009-08-18 21:29:41] INFO ruby 1.8.5

hi new to rails ... wat does it means... uninitialized constant BooksController::Books /usr/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:102:in `const_missing'' app/controllers/books_controller.rb:5:in `index'' -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are

So....let''s have a look if I understood the issue: -Find_all_by is actually the same like Find(:all), however Find_all_by is much shorter and less complicated than the syntax of Find(:all) -So in my CONTROLLER it says @files = find(:all) however I don''t want to see all files displayed in my selection box, because I only want to see the foles whose mandant_id is the same like

Hello, I am working on a project, and on one form we have a select (drop- down) box where the user needs to be able to select from a list of clients. The box is currently being populated with: <%= collection_select(:client, :id, @account.clients, :id, :name) %> The problem is that some of these clients may have already been selected, and we need to remove them from the list. Is this

r-gurus, I couldn't find an answer to this and after an hour or so of trying all types or ways to do this, I've given up for now. I'm having trouble getting the results from xtabs to generate "unsorted" factors. I've generated a sample data.frame I want to create a table from, using xtabs, and the results are presented below, > temp treatment itpa qmd

I''m trying to create a modules based system where my controllers are all under modules. So the structure looks something like: app/ controllers/ message/ news_controller.rb email_controller.rb library books_controller.rb pictures_controller.rb home_page_controller.rb Each of those controller has

I want to upload file using get method. for example, "http://www.mydomain.com/upload?file=c:\test.exe" upload my local file to the remote server. I found one useful link about file uploading here(http:// www.tutorialspoint.com/ruby-on-rails/rails-file-uploading.htm). Even I''ve changed some code in order to fit my rails version, it worked well. But the problem is I have use

I've been trying to figure out why the following is happening.... I've got some data I'll load in from a file... rm(list=ls(all=TRUE)) trees <- read.table( "c:/cruisepak/data.txt", header=T) trees$ct <- 1 And when I create some temp variable, then split the data to perform further processing, the additional column doesn't maintain the data correctly.... mtrees

is there any link for step by step guide in file upload in database ... im follwing the link http://www.tutorialspoint.com/ruby-on-rails/rails-file-uploading.htm.. which shows file upload into folder not in database ..pls help.. -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups

Here''s a controller spec I wrote, it''s for a very simple RESTful controller (well, aren''t all RESTful controllers simple? :) I''ve created a couple spec helper methods to refactor some of the common code...for example, require_login_and_correct_user creates two specifications: one for when the user isn''t logged in, and one when the user is logged in but

Hello I am able to construct a url that points to some data online in the JSON format. See an example at [0]. I would like to work with this data as a dataframe in R. I know that there is a package for handling json data [1] but it assumes the data is in a local file but It is not clear to me how to request the data from the web in an R script and get the json data converted into a data frame

Hello all, I''m trying to get my servers to work with Xen, but as I use sata2, it looks like only a recent kernel will do the job. But unferotunately, ony and official 2.6.8 is provided, which doesn''t boot at all on those machines. I''ve tried ubuntu''s 2.6.22-xen, but ti looks very buggy. Where could we find patches for 2.6.22/23 to add Xen? How could I gete a

Hi, I have put all the basic things in place and you will find it a working tutorial for Ruby on Rails 2.1. http://www.tutorialspoint.com/ruby-on-rails-2.1/ I have covered Model, Controller and Views in detail and you will find a nice example on scaffolding. If you like this tutorial then please share it with others....Oh yes...if you have any feedback then please definitely send it to me.

Hello, I can`t figure out how can increase the velocity of the fitting data by nls. I have a long data .csv I want to read evry time the first colunm to the other colunm and analisy with thata tools setwd("C:/dati") a<-read.table("Normalizzazione.csv", sep=",", dec=".", header=F) for (i in 1:dim(a[[2]]]) { #preparazione dati da analizzare

I got a following error. NoMethodError in Book#new Showing /home/amrit/boook/app/views/book/_form.html.erb where line #1 raised: undefined method `model_name'' for NilClass:Class The content of _form.html.erb file are: <%= form_for(@post) do |f| %> <% if @post.errors.any? %> <div id="error_explanation"> <h2><%=

I doubt that their has been any development work on bringing vorbis to the Mac. I am trying to do just that. I want to know whether you think I should try to port it using the various components tht are being used to bring vorbis to Be and others OR if i should wait till September when the public beta of Mac Os X ( which is based on Unix). I have been told that unix stuff will be fairly

Dear ALl, I have the following live setup . Centos 5.1 running as a Mail and DNS server with the following software Sendmail ver MailScanner ver squirrel mail clam av spamassassin mailwatch we have about 250 mail users all with no shell and every thing is working perfectly fine now i wd like to know the following . 1) if i have a copy of my /etc/passwd file and the /etc/skel/shadow file and

Hi, I am currently using Rails 2.0.2 with Ruby 1.8.7. My Prototoype.js version is 1.7(if required). I am basically trying to integrate the calendar_date_select plugin in my app. The link/tutorial I am referring is: http://ianli.com/site/HowTo/UseCalendarDateSelectRailsPlugin I am trying to save the date I receive through the date select plugin and store in a rails symbol :publishing_date. I am

Hi, Just introduced few more chapters in my Ruby on Rails 2.1 tutorial. Most interesting one is Unit Testing of RoR Applications. Just go through it and send me your comments. http://www.tutorialspoint.com/ruby-on-rails-2.1/rails-unit-testing.htm Thanks. -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are