similar to: Database design, working but looking for better ways

Hello here, I need to find an idea to solve a problem I manage Events which are of kind :arrival or :departure At first the two kind of events was unrelated but my client want to see the :departure belonging to the :arrival and vice versa. I''m searching for a solution to implement this ''link''. I''ve thought about an integer column containing an uniq id for

Rails 3.1.3 rspec-rails (2.11.4) rspec 2.11.1 I am new to rspec. I don''t quite understand tests for POST create part. I have generated scaffold, and simultaneously it generated controller_spec.rb as well. it "assigns a newly created plan as @plan" do post :create, {:plan => valid_attributes}, valid_session assigns(:plan).should be_a(Plan)

Rails 3.1.3 I am using Formtastic gem in order to deal with multi-select dependencies. <%= semantic_form_for(@give) do |f| %> <%= f.inputs do %> <%= f.input :departure, :collection => Departure.find(:all, :order=>:city).collect{ |c| [c.city,c.id]}, :required=>true %> <div id="destinationCity"> <%= render :partial =>

Rails 3.1.3 Hi. I''m a little confused with Devise and ActionMailer. It seems that Devise has its own way of sending mails through ActionMailer. Does it generate Mailer class when "rails g devise..." command is executed? Or do I need to do some special command in order to generate Mailer? I have certainly set up a devise User table but there is no Mailer class for it,

say I have a matrix and lists like x <- matrix(c(12.1, 3.44, 0.1, 3, 12, 33.1, 1.1, 23), nrow=2) x.list <- lapply(seq_len(nrow(x)), function(i) x[i,]) if I want a column of the matrix x, I write x[, 2] for example. But how can I do something similar for a set of lists, x.list, above? > x.list [[1]] [1] 12.1 0.1 12.0 1.1 [[2]] [1] 3.44 3.00 33.10 23.00 unlist(x.list)[,2] does

Has anyone plotted or is it possible to plot CIE *xy* chromaticity diagram http://en.wikipedia.org/wiki/File:CIE1931xy_blank.svg I need this plot in color. ishida [[alternative HTML version deleted]]

rails 3.2.11 My app has User model, its one of the fields is entrepreneur:boolean. So users have two types; one is normal users, the other is professional users. For normal users, only emails and usernames are required and other fields are optional. For professional users, in addition to above, addresses and real names are required. Is there any Ruby way to set the requirement depending on the

Rails 3.1.3 After watching http://railscasts.com/episodes/258-token-fields?autoplay=true I have installed the similar functionality to my app. However, def index @cities = City.all ... does in fact give the list of all cities in the text field, but def index @cities = City.where("name like ?", "%#{params[:q]}%") ... does NOT

Rails 3.1.3 I have tables, Video and Script having association, Video 1 --- n Script So, every Script needs the parent id, in this case, video_id. If I simply create a new Script instance, the view renders as follows. <%= render :partial => "new_script", :locals => { :script => Script.new(:video_id => @video.id)} %> which works fine. Now I would like to

I need to develop a simple list manipulation. Although it seems easier to do it in matrix form, but I need it in list form. I have a matrix x <- matrix(c(12.1, 3.44, 0.1, 3, 12, 33.1, 1.1, 23), nrow=2) for list form example, the conversion is x.list <- lapply(seq_len(nrow(x)), function(i) x[i,]) ### list version calcnorm=function(a, b){ diff <- mapply("-", a, b)

I suggested to our Homeowners Association that we begin a Private Forum (phpBB) and web site. That suggestion has been well received and we will proceed with that. Now, I have become involved in a much more complex and important project, which is Video Surveillance, for the entrance to our subdivision. I Googled and found two (2) things for Linux that seem to be OK: (a) ZoneMinder

Rails 3.1.3 I believe this is a very very fundamental question, but since I am new to Rails, it''s more productive to ask someone to point out what I need to do. Say, I have a search method that generates a list of youtube videos. I have completed this part. And also, I have set up a database, Video, whose fields are video_title and URL. I need to place a button to each of these video

ruby 1.9.3p194 (2012-04-20 revision 35410) [i686-linux] rails 3.1.3 Ubuntu 10.04 LTS I have another environment with MacOSX Snow Leopard, and am sharing the Rails project files through Dropbox. When I chose to develop a project further in this Ubuntu machine, I have executed ''bundle install'' which gave an error #--------- Gem::Installer::ExtensionBuildError: ERROR: Failed to

Rails 3.1.3 Globalize3 latest I am not sure if I can ask this question here in general Rails forum. But I''ll try. Currently I am using a gem, Globalize3, which is useful for model I18n. https://github.com/svenfuchs/globalize3 Say, I have a model City, having only one column, name. City names appear differently depending on the language, so perhaps this particular gem is useful.

Rails3.1.3 I have db type, startp:integer I need to change it to float. More specifically, 1.2, 45.1, 143.8 ... I have two questions: 1. Is removing and adding the field through migration the only way? in other words, is there a single command to change the type? 2. Is there anyway to limit the decimal place to only one? 56.3, 34.2... are acceptable, but 23.112, 77.34, ... are

I am evaluating rsync for the mirroring of a website and associated database. To exercise it and establish the correct run string I need I am running tests LOCALLY between two test directories. I have a /scratch/temp/Departure and a /scratch/temp/Arrival trees. I apply changes to the Departure tree, run rsync, and do a diff -r. Now I delete a file in Departure rm Departure/Quattro/uno.file

Rails 3.2.11 Sidekiq latest My app continues background jobs that generate texts as the output. class ProcessText include Sidekiq::Worker def perform(name, count) puts "executing..." @feed = Feed.first @feed.process # here it returns String results! end end What I want is basically how to send (or push?) the result texts to a particular web

Rails 3.1.3 I have a model ''Airline'', whose STRING column is ''company'' only. Also, another model ''Plan'' has an INTEGER column ''airline_id''. I would like to show the ''company'' name (string) in a template like <% @plans.each do |plan| %> Airline: <%=

I have two data frames. One (arr) has all arrivals to an airport for a year, and the other (gw) has the dates and quarter hour of the day when the weather is good. arr has a Date and quarter hour column. >names(arr) [1] "Date" "weekday" "hour" "month" "minute" [6] "quarter" "ICAO"

Rails 3.1.3 I am hoping some of you may give me suggestions about user input helper methods. I have a large set of model, Flight, and its fields are airline, flight_name, departure, destination As you can imagine, the flight data will be very large; it could be thousands if it is international. I will ask users to input the desired flight plan, and it will be crucial if the users make