similar to: Question: coding protected methods

Hi, in the past few months someone posted an entry on their blog about how to do validations in non-AR classes and I cant find it any more. Anyone have a link? Thanks, Trevor -- Trevor Squires http://somethinglearned.com

I would like to have a table with some constants to use them later on for a drop down menu. How can this be done? My table looks like Table with constants ------------------------ id | key | value | type ------------------------ 1 | M | Male | sex .... I know it can be done like this <% select ''object'', ''method'', Constants.find(:all, :select =>

So any other ideas as to why my custom class under app/models is being cached even though all the caching is set to false in the config/environments/* files? Currently I''m having to restart WEBrick after EVERY change to the file. The controllers and views are reloading just fine and not being cached. It''s just the custom class I created that''s being cached. Any ideas

I have a photographers app that requires giving access to galleries for users. in one part, I want to be able to define gallery access for a user seperate from updating any of the user info. I have this function: def edit_access @user = User.find(params[:id]) @user.galleries = Gallery.find(params[:gallery_ids]) if params[:gallery_ids] if @user.update_attributes(params[:user])

Hey, sorry if this is something better suited to another list. I''ve encountered a strange problem with the RSpec.tmbundle in trunk - namely that it was raising an exception when pressing ctrl-shift-downarrow (switch between spec and source - "Alternate File"). I tracked down the issue to be handling of the file_type in switch_command.rb#content_for() - the code expected the

Hi all, I''ve a model class Toto in the model directory. I don''t understand why i have to restarts WebBrick to view changes i make in this class FYI : in the development. rb i desabled class cache with config.cache_classes = false Regards Luciano -------------- next part -------------- An HTML attachment was scrubbed... URL:

Readers, I have entered a file into r: ,column1,column2 row1,0.1,0.2 row2,0.3,0.4 using the command: dataframe<-read.table("/path/to/file.csv",header=T,row.names=1) When I try the command: dataframe[,2] I receive the response: NULL I was expecting: row1 0.2 row2 0.4 What is my error with the syntax please? Yours, r251 mandriva2009

is there a smart way of determining the number of pairwise present data in a data matrix with missings (maybe as a by-product of some statistical function?) so far, i used several loops like: for (column1 in 1:99) { for (column2 in 2:100) { for (row in 1:500) { if (!is.na(matrix[row,column1]) & !is.na(matrix[row,column2])) { pairs[col1,col2] <- pairs[col1,col2]+1

Hi there, I''m currently developing a plugin to do authentication and authorisation. In the init.rb file of the plugin I have this code:- $:.unshift File.expand_path(File.join(File.dirname(__FILE__), ''lib'')) require ''open_advantage/authorisation'' ActionController::Base.send :include, OpenAdvantage::Authorisation and this is the skeleton of my

I am a single person company designing an exciting new web application for the general internet community. I am looking for 1 or 2 RoR developers keen to be involved in the development of an online application over the next few months. This project will initially be a free service for all internet user with the option for revenue through other sources later on - hence I am looking for

I am writing a custom function that uses an R-function from the reshape package: cast. However, my question could be applicable to any R function. Normally one writes the arguments directly into a function, e.g.: result=cast(table1, column1 + column2 + column3 ~ column4, mean) (1) I need to be able to write this statement as follows: result=cast(table1, string_with_columns ~

Hello to all is there a function wich splits a data.frame (column1,column2,column3,....) into data1 <-(column1,column3....) #column2 = 1 data2 <-(column1,column3....) #column2 = 2 data3 <-(column1,column3....) #column2 = 3 ... Regards Knut

If I''m redirecting to a log in page, and saving the controller and action name in the session hash, how do I also save the controller module? After the log in is completed, I can''t redirect back to the originally directed page because it''s in a different controller module. For the controller action name I can use the ActionController instance method controller_name(),

Hi All I am trying to implement a Back to Search Results functionality, by storing the user''s search criteria (params) in session and then reusing those params instead of request params when user clicks on "Back to Search Results link". here is my code ________________________________________________________________________ def search if session[:incidentSearch].nil? or

Hi ? I have a file. list.txt (two columns) ? column1??? column2 name??????? address ? ? I need to put in the letter file letter.txt eg: ? Dear: Chloe Address: CA ? Can I use this ? for i `cat list.txt` | sed 's/Chloe/$i.1; /CA/$i.2/g' $i.letter.txt ? Thank you for your help ? ? ? ? ? __________________________________________________________________ Looking for the perfect gift?

Hello everybody, I have experience coding with R, but am brand new to R Shiny. I am trying to produce an application that will allow users to upload their own dataset, select columns they want an ANOVA analysis run on, and generate graphs that will allow users to view their results. However, I am getting the following error: *"Argument is of length zero."* Being new to Shiny, I am

Hi, I have written boxplot commands of this form before, but I don''t quite understand why the function call is reporting a syntax error in this instance. All parameters passed to the function are strings. Thanks in advance. Payam > simplevar <- function(wframe,column1,column2) { + tframe <- get(wframe) + x1 <- which(names(wframe)==column1) + x2 <-

Hi Gregg. Just wanted to follow up on the solution you proposed. I had to make some adjustments to get exactly what I wanted, but it works, and takes about 15 minutes on our server configuration: temp <- ??????open_dataset( ????????????sources = input_files, ????????????format = 'csv', ????????????unify_schema = TRUE, ????????????col_types = schema( ????????????"ID_Key"

Hello Thomas, Consider that the primary bottleneck may be tied to memory usage and the complexity of pivoting extremely large datasets into wide formats with tens of thousands of unique values per column. Extremely large expansions of columns inherently stress both memory and CPU, and splitting into 110k separate data frames before pivoting and combining them again is likely causing resource

Hi, set.seed(45) test1<-data.frame(columnA=rnorm(7,45),columnB=rnorm(7,10)) #used an example probably similar to your actual data apply(test1,2,function(x) sprintf("%.1f",median(x))) #columnA columnB # "44.5"? "10.2" par(mfrow=c(1,2)) lapply(test1,function(x) {b<-