similar to: Nested Data

Hello, I''m farily new to RoR and am having a problem trying to retrieve data from my database. Here is the code from my controller: def index zip = params["zip"] @zip1 = Zipcode.find(:first, :conditions => ["zip = ?", zip]) lat = @zip1.latitude.to_f long = @zip1.longitude.to_f radius = 50 @bookstores = Bookstore.find_by_sql ["SELECT * FROM

I''m stuck in a catch-22 type problem. I have an insert form for a table that uses the validation in the model. i.e. When you click submit on the form and haven''t filled in the required fields then you get the nice rails error messages saying "field can not be blank". This works fine until I introduce some more logic. What I''m trying to do is to validate

I''ve got a publications table that contains an author_id foreign key and a pubrole_id foreign key. What I want to do is query the DB using AR so that I can get a list of all publications that belong_to a particular author, and group the results by the pubrole.role_name (Author, Joint Author, Editor, etc.) so that the results look something like: Author book1 info book2 info etc.

Anybody know where I can get the Pinheiro/Bates book? I can't find a bookstore w/ stock and the publisher says they don't know when they'll have it again. Thanks. -Frank

hello, Suppose I have a table that looks like this: center name email Health Jon jon@test.com Health Bob bob@test.com Admin Jane jan@test.com Admin Jill jill@test.com I would like the output to look like this: Health Jon jon@test.com Bob bob@test.com Admin Jane jan@test.com Jill jill@test.com when i using cold fusion, this was easy via a tag called cfoutput. when i was using java, this was

I am hoping to find a inventory management program suitable for something like a bookstore or other 1-5 person smb. The software would need to be able to accept inputs from wireless handheld scanning devices for entry into the system. It must also work with their windows based PoS computer. Any suggestions would be highly appreciated. William -- My "Foundation" verse: Isa 54:17

Hi all, I'm currently gearing up for a possible PBX replacement project using Asterisk, and I'm just breaching the iceberg of information that's available. I typically like to have something thick with pages in front of me. Mahler's book was the first one to come up and it seems like a good place to start. However, the big name bookstores tell me it'll take up to three

Hi All, I understand people have been frustrated trying to find copies of "The Official Samba-3 HOWTO and Reference Guide" edited by John Terpstra and Jelmer Vernooij. I apologize. Demand has been even greater than we anticipated and we immediately ran out of stock on the first printing. As bad luck would have it, the busy holiday printing season and a glitch at the printer delayed the

Hi all, I ve some troubles in my small acpplication (only 2 tables). I want to follow up tasks but these tasks are linked to others tasks. So I ve tried to do store the nn relationship in other table called links 1st table : tasks columns : id | infos neutral... (as title, description etc ...) ----------------------------------------------------------------------------------- model : class

I wonder why ruby core method ''take_while'' does not work as expected in the below Rails console example: irb(main):003:0> arr = [] => [] irb(main):004:0> arr << Date.today - 15.days => [Sun, 27 Jan 2013] irb(main):005:0> arr << Date.today - 25.days => [Sun, 27 Jan 2013, Thu, 17 Jan 2013] irb(main):006:0> arr << Date.today => [Sun, 27

Thanks, Mark. Um, how's about from the commandline or how do I get, I guess we're still using X11, windows to load. Sorry, :<}}} Clayton >-----Original Message----- >From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On >Behalf Of Mark LaPierre >Sent: Sunday, December 14, 2014 5:50 PM >To: centos at centos.org; Mark LaPierre >Subject: Re:

Ruby Cookbook is out. I browsed the book today at the bookstore. It looks very good with a section on Rails. There is no review on Amazon yet. Did anyone get a chance to review this book?

Dear, I built the generalized method of moments model to estimate the sales rank in the bookstore using plm package in R. The equation is: data1.gmm <- pgmm(dynformula(lnsales_rank ~ ln_price + avg_ham_rate + avg_spam_rate + num_of_ham+ num_of_spam + ship_code2 +ship_code3 +ship_code4+ ship_code5+ ship_code6 + ship_ code7, lag = list(0, 0, 0, 0,0,0,0,0,0,0,0,0), log =FALSE), data=data,

Hi All, Thanks to everyone who has written wanting more information on when "Samba-3 by Example" by John Terpstra will be available. The good news is that it is available right now through your local bookstore or online sites like Amazon.com. There are already a couple of very positive comments posted to Amazon. These indicate that if you want to get Samba-3 up and running, you'll

Hi everyone! :) I''m currently accomplishing what I want, but I''d like to clean it up a bit. I''ve placed the following items in an array (please excuse my lack of proper syntax): @widgets = [1, red] [2, blue] [3, red] [4, blue] I''d like to learn a way to search through the @widgets variable an separate the widgets, so that I could have: @blue_widgets = [2,

Hi, I wanted to use wxSugar enumerable features to add a method for returning checked items'' index to the CheckListBox class : require ''wx_sugar/version'' require ''wx_sugar/wx_classes/control_with_items'' require ''wx_sugar/wx_classes/listctrl'' class Wx::CheckListBox def checked_items # use of find_all method from Enumerable

Hello, I''ve done === class HomeController < ApplicationController def index @country = Country.find(:all, :include => "cities") end end === And rhtml is: === <% @country.each do |country| %> <h1><%= country.name %></h1> <% country.cities.each do |city| %> - <%= link_to city.name, :action =>

I''m playing around with the Practical Rails Projects code, and was attempting to make a change for graphing data differently using groupings. Basically the code went from: total_weight = @exercise.activities.collect {|e| e.repetitions * e.resistance} workout_dates = @exercise.activities.collect {|e| e.workout.date.to_s} To: total_weight =

I am trying to understand how the SOM algorithm works using library(class) SOM function. I have a 1000*10 matrix and I want to be able to summarize the different types of 10-element vectors. In my real world case it is likely that most of the 1000 values are of one kind the rest of other (this is an oversimplification). Say for example: InputA<-matrix(cos(1:10),nrow=900,ncol=10,byrow=TRUE)

Redhat in centos? I type help and the first line says redhat. Are we paranoid about red..t? Clayton You can tell the caliber of a man by his gun--c. kirkwood