search for: quizzing

I offer my apologies in advance for the repost. On a list as busy as this, it is sometimes easy to get missed in the shuffle. I am trying to create, display and edit a referenced object''s text field on the same view as my root object. For example: ------------------------- Quiz: <<quiz.name>> Preamble: <<quiz.preamble_presentation.text>> Postamble:

I am building a relatively trivial application to try to learn my way around Rails. I am having difficulty understanding how to navigate a heavily denormalized hierarchy. Could someone direct me to a bare-bones explanation of using rails to navigate database hierarchies? I am an experienced developer. Most of my work has been desktop client server, high performance, or server to server

Hi, I am thinking about how to best design a quiz site in RoR. I think it should be fairly easy, but have run into a wall. In the simplest form, the view would grab all of the questions for a particular quiz and display them (e.g. multiple choice, so 4 option buttons per question). However, I can''t figure out how to "mark" the quiz. The form is submitted to the

Hi In my app , a user can create a set of question then a table is dynamily created , in the database,to store the answers of the questions. the name of the table is answers_x (x is the id of the questionniare). Is it possible to dynamicly create a model, to handle the answer_x tables ?? I can''t manually create a model then restart the server.

Hey Everyone, I'm pretty new at R and wanted to try and make some graphs with dummy data before using it to analyze my own. I successfully made a bar graph and error bars, but I can't figure out how to align them properly (currently they are not centered on the bars and some of them aren't even close). Here's the code that I'm using: > marks <- sample(4:10, size=50,

Hi there, My name is Angelica and I was just checking out your page at http://us1.samba.org/samba/docs/SambaIntro.html and noticed that the the link to the Dilbert site on http://www.unitedmedia.com/comics/dilbert/ isn't working. I'm a Dilbert fan myself :) so I thought I'd mention a page I have bookmarked: http://www.answerconnect.com/articles/dilbert-fans It has a bunch of

Railsriders: Quizmeister James Edward Gray II selected the best 25 Ruby Quizzes from last year, then carefully collected answers and annotated them. The result is "The Best of Ruby Quiz", a wonderful book which will teach any Ruby programmer new techniques and approaches to coding. If you want to hone your programming skills, stick to the front part of the book and enjoy

I am using ruby 1.8.4 with rails 1.0 under fedora core 3 on a WIntel platform. Rails appears to be losing key information under some circumstances. Specifically, in the Questions class that follows, the presentation_id property is apparently being lost. The STDOUT dump from the create method indicates that the presentation_id should be 42, but the dump from the database shows that it is 43,

It looks like I am missing something obvious. ActiveRecord is generating _really_ bad SQL for this configuration, and I can''t quite figure it out. I''ve instrumented ActiveRecord enough to localize the problem somewhat, and generally by this time I would have a good idea of what I was missing because it''s all in the source. It appears that something in

I am trying to create, display and edit a referenced object''s text field on the same view as my root object. I have just about come to the conclusion that whoever invented of taglibs should be shot. quiz.preamble_presentation references a Presentation object instance. The Presentation object contains a property called text, among others. The generated form will display the ID of the

For some reason, rails is generating this SQL: SELECT FIRST 1 * FROM questions WHERE (parent_id IS NULL) ORDER BY position DESC 1. There is no column named position referenced in my code. 2. POSITION is a reserved word in SQL92. It is the name of a string function that returns the offset of one string within another. I believe that this is a bug in Rails. Either position should be

Sorry to keep quizzing the r-helpers but I'm having real difficulty with arima. I am happy that i have chosen the best fitting arima model for my data,(in this case arima(1,1,1) but when i use the predict function the forecast damps to a constant value after just two or three values, and from a time series of almost...

Rob Tibshirani and I are offering a MOOC in January on Statistical Learning. This “massive open online course" is free, and is based entirely on our new book “An Introduction to Statistical Learning with Applications in R” (James, Witten, Hastie, Tibshirani 2013, Springer). http://www-bcf.usc.edu/~gareth/ISL/ The pdf of the book will also be free. The course, hosted on Open edX, consists of

...##or subset = bquote(.(formula[[2]]) > 0), na.action = na.action) mf } ## never works tst(ncases ~ agegp + alcgp, data = esoph) traceback() #--> shows that inside model.frame.default # eval(substitute(subset, ...)) is called as well ---- Happy quizzing.. Martin Maechler, ETH Zurich

I have a magical proposal for the anti-magic web framework. Controller methods do not use arguments and yet expect arguments. This is handled through this params hash because we don''t know in advance what parameters a client could pass to Merb. But in almost every instance, it is too much to know all the query parameters - one doesn''t care if the user threw in an extraneous

I've uploaded Xapian 1.2.6 (including Search::Xapian 1.2.6.0). As usual you can download from: http://xapian.org/download You can read an overview of the release here: http://trac.xapian.org/wiki/ReleaseOverview/1.2.6 The full lists of user-visible changes are linked to from there, and also from the "[news]" links on the download page. As always, if you encounter problems,

I''m looking to implement model inheritance in a new application. Is there any good alternative to single-table-inheritance? -- -Alder

I just removed a bunch of Personal stuff I should not have. Is there anyway to undelete??? Jerry

rspec_resource_generator ======================== By Pat Maddox Use this generator to generate RESTful scaffolding with RSpec specifications. Syntax is exactly the same as the scaffold_resource generator: ./script/generate rspec_resource ModelName [field:type field:type] When you run this generator, it will create a migration, model, and model spec file. In addition, it gives you a RESTful

Hello all, Having a problem with the Rspec textmate bundle and having quizzed the guys in #textmate to no success about the errors, I''ve been suggested to try you guys! When I run the "Run Behaviour Description" command, I get the following errors: /Users/alastair/Library/Application Support/TextMate/Bundles/ RSpec.tmbundle/Support/lib/spec/../spec/mate/runner.rb:34:in