similar to: Because I''m very slow - trying to use console

I am struggling to understand the methodology here... I have a find.rhtml <%= start_form_tag :action => ''list2'', :first_name = client %> <%# render :partial => ''form'' %> <p><label for="client_first_name">First name</label><br/> <%= text_field ''client'', ''first_name''

In my controller...this code works def list2 first_name = params[:client][:first_name] @myclients = Client.find(:all, :conditions => ["first_name = :first_name", {:first_name => first_name}]) end this code doesn''t... def list2 first_name = params[:client][:first_name] if first_name searchstring = ''["first_name =

Hi guru''s out there, Im happilly coding my first rails app, and all goes well. I find myself manually coding in a particular field all the time (company_id), that relates the contact to a company. The total coding of this form seems somewhat much. Could somebody tell me what Rails power I''m possibly missing and stuborn as I am trying to do myself? I was wondering if the

All of the tutorials and the Agile book use MySQL and I''ve got that working. I am now trying to use PostgreSQL and can''t seem to get going. Is my problem the db setup in postgresql? I have installed postgres-pr The error message when I try to access http://localhost:3000/clients when using PostgreSQL (MySQL works fine) ActiveRecord::StatementInvalid (RuntimeError: ERROR

I simply can''t figure this out. I have been reading and re-reading Agile book and wiki.rubyonrails.org - all sorts of validation methods and still, it doesn''t work. Controller code def create @client = Client.new(params[:client]) if @client.save! flash[:notice] = ''Client was successfully created.'' redirect_to :action =>

Hi I am running Mac OX tiger with the installed ruby 1.8.2, and mysql5 (I checked that it was running in preference). I tried to run the various fixes recommended in agileweb. I am stuck on page 57, script/generate scaffold... > Could you paste in your database.yml file, from the > "config" folder inside your Rails app? If you have any > passwords entered there, you should

I have a model where initially, they we don''t insert an gov_id value because it isn''t known. The field is given a value of "" because it is on the form. I then added code to the ''create'' method to set that value to nil if it is blank which seems to be fine but then it fails this validation (if NULL) validates_length_of :gov_id, :maximum =>

I''m using render to display a collection of partials, where each partial is a table row. Is it possible to zebra-stripe the table using this method i.e. alternate table rows get a different CSS class? I can''t work out how each row partial would know whether it was odd or even. In the normal scheme of things I could do: <% odd_or_even = 0 for asset in @assets

Hi folks, I''m curious how a lookup with a large group of values would be handled in Rails. For example, I have a (contrived) AnimalType filtering a list of many Animals--more than can be presented comfortably in a dropdown box. Therefore I need to either redirect to another screen to select an animal (returning after the selection is made), or show a dialog--modal or otherwise--to

I''m a newbie to rails, and really to the whole DRY and MVC thing as well, except where I accidentally fell into things doing it my own way in the past. I''ve got a fairly complex DB structure I want to create an interface for using Rails. Getting simple tables to display, edit, save, not too much problem there. But where I''m having trouble is figuring out where to

Dear R users, A co-worker and I are writing a function to facilitate graph plotting in R. The function makes use of a lot of lists in its defaults. However, we discovered that R does not necessarily preserve the defaults if we were to input them in the form of list() when initializing the function. For example, if you feed the function codes below into R: myfunction=function( list1=list

I everyone, i have a little problem with tklistbox,the " " character and Rcmdr. Please look at this code require(tcltk) tt<-tktoplevel() levels.list2 <-tklistbox(tt,selectmode="multiple",exportselection="FALSE", height=4, yscrollcommand=function(...)tkset(levels.list2.scroll,...))

Just starting out with a beginner book on jquery and the very first thing I am trying fails (has to be me) Rails 3.1 - other jquery things working including a poor example of drag & drop that is my ultimate target here but just simply trying to get every alternating row in a table to have a different css class So I''m using... app/assets/javascripts/people.js.coffee and put in...

Hi, Algorithm question: I have two sets of "intervals", where an interval is an ordered pair [a,b] of two numbers. Is there an efficient way in R to generate the intersection of two lists of same? For concreteness: I'm representing a set of intervals with a data.frame: > list1 = as.data.frame(list(open=c(1,5), close=c(2,10))) > list1 open close 1 1 2 2 5

Hi, I have 2 questions on list object:   1. Suppose I have a matrix like: dat <- matrix(1:9,3)   Now I want to replicate this entire matrix 3 times and put entire result in a list object. Means, if "res" is the resulting list then I should have:   res[[1]]=dat, res[[2]]=dat, res[[3]]=dat   How can I do that in the easilest manner?   2. Suppose I have 2 list objects: list1 <- list2

hi, i'm trying to figure out if there's any possibility to write a whole vector into a matrix or data.frame or something like that. i don't mean transormation. Here an example: [,1] [,2] [1,] "a" "d" [2,] "b" "e" [3,] "c" "f" where e.g. a is a<-c(0,1) vector of length 2, b a vector of length 4,... (i know that

Hi R users I was wondering on how to use lapply & co when the applied function has a conditional statement and the output is a 'growing' object. See example below: list1 <- list('A','B','C') list2 <- c() myfun <- function(x,list2) { one_elem <- x cat('one_elem= ', one_elem, '\n') random <- sample(1:2,1) show(random)

Hi, This has bugged me for a bit. First question is how to keep classes with rbind, and second question is how to properly return vecotrs instead of lists after turning an rbind of lists into a data.frame list1=list(a=2, b=as.Date("20090102", format="%Y%m%d")) list2=list(a=2, b=as.Date("20090102", format="%Y%m%d")) rbind(list1, list2) #this loses the

Hello, am I using 'setIs' in the correct way in the subsequent (artifical) example? Do I have to specify explicit 'setAs' for 'list' and 'vector' or should this work automatically, since "getClass("List1")" states an explicit coerce also for these classes. I'm working with R 2.0.0 Patched (2004-10-06) on windows 2000. Thanks for your

I am new to R, and I have been running into the following situation when I mistype a variable name in some code: > list1 <- list( a=1, b=2 ) > list2 <- list( a=1 ) > list2$b <- list1$c > list2 $a [1] 1 I would think at the point where I am trying to reference a field called "c" -- that does not exist -- in list1, there would be an error flagged. Instead, list1$c