similar to: can i alter the _form.rhtml without have troubles to validat

how can i access to a collection that was created in the same control and the data that a want to access isn?t the id the collection has : id, usuario, comandancia comandancia is the data to access the question is how to access comandancia in @acceso this code is wrong : def new @catelemento = Catelemento.new @acceso= Catacceso.find(:all, :conditions

I have the following models: class Comandancia < ActiveRecord::Base has_many :elementos end class Elemento < ActiveRecord::Base belongs_to :comandancia validates_presence_of :nombre, :apellido_paterno, :apellido_materno, :comandancia end In the view for New Elemento I''m using <%= start_form_tag :action => ''create'' %> <%= render :partial =>

Ben trovati. Ho questa _form : <%= error_messages_for ''requirement'' %> <!--[form:requirement]--> <p><label for="requirement[structure_id]">Struttura</label><br/> <%= @structures = Structure.find(:all, :order => "nome").map {|f| [f.nome,f.id] } select(:structure, :id, @structures) %> <p><label

I submitted this earlier, but the web forums went down and I''ve screwed up the thread, so I''m starting over. I''m trying to built a document upload system. The system has a main Document model with different subclasses for different types of documents. With the code below, if I attempt to create a Document, it works fine, but if I attempt to use one of the subclasses, I

Hi I have been following a thread here.. http://www.ruby-forum.com/topic/new?forum_id=3 but it did raise some new curiosities that I hope someone can help address here :) In particular it is with Duane''s super secret hack that works for multiple child objects > There''s a super-secret and mostly undocumented way of doing this > that''s kind of handy, actually.

Hello: I recall something like this being discuss recently, but I can't seem to locate an example in the archives. I have data like the following: df <- expand.grid(1:4, 1992:2002) names(df) <- c("MSA", "YEAR") df$IDUPREV <- runif(44) df$VALIDAT <- rnorm(44) I want to create an xyplot() with separate loess lines for each series (IDUPREV and VALIDAT) in

Just wondering if anyone could point me to a good explanation of why the latest way of doing things does not include using something like _form.html.erb partials in RESTful rails 2.0?? Why did we move away from partials, etc?? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To

I''m trying to create a document upload system, where most of the code is the super class Document and just the path to file on the system is controlled by the sub classes. When I attempt to use my code, I get the following when I try to save the document. can''t dump anonymous class Class Any ideas? ** Migration ** class CreateDocuments < ActiveRecord::Migration def

Hi all, I''ve got an odd issue. I''m new to Ruby/Rails and have a bit of a silly question. I''m following along with the nice little tutorial here, to get an idea of the system: http://www.onlamp.com/pub/a/onlamp/2005/01/20/rails.html?page=3 However, I''m running into an issue where the author adds a new field in his database, refreshes the browser and shows

Dear list I am using the mvr function of the package pls.pcr to compute PLS resgression using a X matrix of gene expression variables and a Y matrix of medical varaibles. I would like to obtain the R2 (sum of squares captured by the model) and Q2 (proportion of total sum of squares captured in leave-one-out cross validation) of the model. I am not sure if there are specific slots in the

What version of R, what version of pls.pcr, and on what OS? Have you checked whether your versions of software are up to date? I get: > n <- 1350 > p <- 180 > y <- rnorm(n) > x <- matrix(sample(0:1, n*p, replace=TRUE), n, p) > fit <- mvr(x, y, method="SIMPLS", validat="none", ncomp=2) > xt <- matrix(sample(0:1, 312*p, replace=TRUE), 312,

If I have belongs_to :user Do I need to have validates_presence_of :user_id ? Does Rails validate the presence of :user_id automatically if I have belongs_to :user? In other words, does Rails prevent against creating orphan records that belong to non-existent users? Thanks. -- Posted via http://www.ruby-forum.com/.

Hello, I am currently using ferret 0.9.5 and acts_as_ferret 0.2.3 on windows XP All my unit and functions test that used to work before I installed ferret are erroring out. My index is on a model name Post, and it looks like all tests that contains methods which does CRUD to the Post model bombs out. Is there anything special I need to do before running unit and functional test? Thanks

Hi all, I have a very high dimensional data and apparently there are several columns that contain similar information (some columns are equal). I want to form a matrix/data frame consisting of unique columns. Does anyone have an efficient way of getting out these columns. A small section of the data frame is given below. Thanks for helping. Stephen. > newdata [,1] [,2] [,3] [,4] [,5]