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 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 ~

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

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 ? 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?

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 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, 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<-

I am about to write general functions to read the output of simulations models. These model generate output files with different sections which I want to analyze plot etc. Since this will be used many people at the department I wanted to make sure that will do this in the best way. For instance I want to read a snippets of data from a text that look like this.

Hi there I have two dataframes Dataframe_1 column_1 colum_2 121 12345 145 1675 167 2765 Dataframe_2 column_1 column2 121 abc 345 lmn 167 efg I want a resulting dataframe 121 12345 abc 167 2765 efg how do i go abt it Ramya -- View this message in context: http://n4.nabble.com/Dataframe-help-tp947934p947934.html Sent from the R

I am new to R, but have been using SAS for years. In this transition period, I am finding myself pulling my hair out to do some of the simplest things. An example of this is that I need to generate a new variable based on the outcome of several existing variables in a data row. In other words, if the variable in all three existing columns are "Yes", then then the new variable should