similar to: Trying to grasp the difference between local variables and instance variables/

Hi: I have a table called clients and each client has many lists (a has_many and belongs_to has been created in the class. What I need to do is get a count of the rows in each list for each client. I was hoping I could do something like client.lists.count but it does not seem to work. Any suggestions? bruce

I create a hash using this line of code @x = Account.find(:all) I then want to go through each element in turn and add a key value pair to the end of it. I thought this would work, but it does not. @x.each do |a| a.merge({"balance"=>50} I used merge because I thought ''a'' would be a hash (how do you find out the type of an object?) I then guess it was

Hi: Some French fellow posted a notice yesterday about a book that had come out. It''s called "Ruby on Rails" and is apparently by DHH & David Thomas. Is this a scam? If not, does anyone know where I can buy this book in English? I''ve searched the usual places but can''t turn anything up. Bruce

Hi: I love Locomotive and use it exclusively for my rails projects. I''d like to install GRUFF and give it a try (a graph image creation package). I know I can do sudo gem install gruff from the command line for normal ruby and rails. How do I make gems available to Locomotive? bruce

Is it possible? It is mentioned in AWDWR but I cannot find that option in the MySQL documentation. I can dump the whole db or just the structure, but I''d like to be able to dump just the contents. bruce

I am reposting this because not only am I VERY interested in the answer but because I think it would also be useful to many, many people. We kind of have a house-style here, so it would be nice if the generated scaffold.css would accommodate that. My questions are? Is it possible? Is it safe? How? bruce

I added :accesskey=>"D" to the html options hash of my link_to tag but nothing happened. Should I keep trying or is this not an option yet? bruce

I''d like to take some advice and write a generator to change the scaffold.css. How do I do that? I looked on the wiki and googled it but have not found anything yet. Any help would be much appreciated. bruce

Hi: I have lines in a table I wish to stripe BUT, every now and then there is another type of line, a section header line. I''d like to be able to start the line after a section heading always as one of the two classes the cycle helper is cycling between. Is it possible? If so, how? bruce PS. I realise I could do this with ''odd_or_even'' or the %2 method (mod

I notice that I begin each project with a standard css file which is the one produced by scaffolding PLUS some other stuff. I could cut and paste a copy from an old project but I thought it would be "cooler" amongst other things (like more efficient) to just have the scaffold.css file be created for me. Is it possible? Is it safe(ish), What would I have to do? Thanks in

I see an abbreviation in the menu called lia but how do I make it work. I have tried a fascinatingly large number of possibilities without success. I have searched the help file and googled the issue. bruce

Hi: I am using a collection_select to select which client''s records I want. Everything works properly EXCEPT the list box reverts to its initial value rather than holding onto the client whose records I am now viewing. ?

Hi all, On the rails list I''ve seen that it''s hard to integrate Rails with Apache (especially apache2), that it''s hard to change the default port (3000), and that Apache runs Rails stuff slowly. Is it reasonable to run Rails stuff on Webrick while simultaneously running other stuff on Apache? How does one simultaneously run two rails applications on Webrick, when

Hi everybody, Hope your are not all on holyday because I've got a problem that is going to drive me crazy... I would like to remove some rows from a dataframe. The rows correspond to some specific indexes which I can get by looking at the name in the first column of my dataset. But I manage to get only the opposite of what I really want (function #1) #Function#1:

Hi, I would like to create data.frame and increment their name to finally merge them. Does anybody has a solution ? Something like that ? n<-6 for (i in 1:n) { m[i]<-data.frame(name,value) m<-merge(m[i]:m[n]) } Nolwenn ******************************************** Nolwenn Le Meur INSERM U533 Facult? de m?decine 1, rue Gaston Veil 44035 Nantes Cedex 1 France Tel:

Since doing "yum update" this morning, an update that installed several packages, the updater shows me 3 packages to install: hpijs-1:3.12.4-4.el6_4.1 (x86_64) hplip-common-3.12.4-4.el6_4.1 (x86_64) hplip-libs-3.12.4-4.el6_4.1 (x86_64) but when I attempt to actually run the update I get: hplip-libs-3.12.4-4.el6.i686 requires libsane.so.1 hplip-libs-3.12.4-4.el6.i686 requires

Hello, R-fellows, I have a question that I really don't know how to solve. I have spent hours on line surfing for possible solutions but in veil. Please if anyone could help me handle this issue, you would be so appreciated! I have a "grouped" dataset like this: > data Study TX AEs N 1 1 1 3 5 2 1 0 2 7 3 2 1 1 10 4 2

HI, I would like to know if it's possible to create a postscript file with multiple graphs . I'm creating some graphs by the means of a loop and I want to save each graph in the same file (splitting making the device by the number of graphs). Do I have to use the par(matrix()) option, the layout() function or the split.screen() one ? Thanks Nolwenn

Hello, I've got the following script that I want to run every time a user logs in to the Samba server, whether it be from a mapped share or by opening a telnet session into the server and logging in that way. Here's the script: #!/bin/sh DOMAIN=`echo $USER | awk -F_ '{print $1}'` USERNAME=`echo $USER | awk -F_ '{print $2}'` if [ $DOMAIN = "MA" ]; then if [

I am storing a shape object in a session, and somewhere I picked up that to make sure I can restore the full glory of Shape, I needed this line in ApplicationController model :Shape So, of course, I also have a file /app/models/shape.rb All was working well, but then I decided I''d rather name the model MyShape. So, I - edited the filename to "my_shape.rb" - edited