similar to: "Quiz" site

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 would appreciate any and all input. The Agile book is not useful in this context. :o( As near as I can tell, it doesn''t work at all. I would expect that clicking on the [Next Question] button in the browser would fire the next_question method in the current controller. Instead, it (apparently) does nothing. The tag in question <%= submit_tag ''Next

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

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,

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

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.

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,

Hey, I just put up a little rails pop-quiz on my blog (more fun than just writing a post saying "hey did you know..."). Seeing as it''s probably of interest to more than just the three people (including my wife) that actually read my blog I figured it would be okay to announce it here. http://tinyurl.com/prxdl I''ll post my answers in a followup tomorrow

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

Today, I was looking for an elegant (and efficient) way to get a named (atomic) vector by selecting one column of a data frame. Of course, the vector names must be the rownames of the data frame. Ok, here is the quiz, I know one quite "cute"/"slick" answer, but was wondering if there are obvious better ones, and also if this should not become more idiomatic (hence

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

I have a view with a form and i want to be able to process the button selected in a controller - not sure how to do this. The form does not map directly to a model - all I want to do is be able to pass back the selected button and know which one it is. So, i have a form and several radio buttons - the submit (not shown) takes me to the process_answer action where I want to determine which

I am new to rails framewrok ,i have experience in PHP and LInux background.I am looking for some tutorial or famous app to create a Quiz and chat .I have implemented quiz and flat file and db based quiz in PHP,but i wanted to do it in Rila.Looking forward for community help. . . -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group.

I was implementing dirty checking for an application, and I found something that is a little counterintuitive. Let me start with a quick quiz: bob=User.find(1) alice=User.find(2) trip=Trip.new trip.driver=bob old_driver=trip.driver trip.driver=alice In this example, who is old_driver? If you guessed Alice, you''re right. Inside associations.rb, the mutator is defined as:

Hi all, I''m looking for some advice on where we should be putting an advert if we are looking to hire a full time rails developer? Or turning it around what websites (or mailing lists) do folks here use to if they feel the need for a change in view from their desk? A few details to narrow down scope since it might affect the advice, apologies in advance, trying to NOT make this an

Dear expeRts, I would like to create a plotmath-label of the form X_1^\prime. Here is how to *not* do it [not nicely aligned symbols]: plot(0,0,main=expression(italic(X*minute[1]))) plot(0,0,main=expression(italic(X[1]*minute))) plot(0,0,main=expression(italic(X)[1]*minute)) Any suggestions? Cheers, Marius

I am successfully navigating between controllers. However, I am unable to construct a new child (question) record. What does "undefined method `stringify_keys!'' really mean"? I think I am missing a subtlety of Ruby syntax here, since the question_controller is actually trying to call the Question constructor. Can someone point out what I am missing please? Thanks in

I have a real-world application with some complex queries that I want to convert to Arel (as part of an upgrade to Rails 3.1). So that I can understand what I''m doing before I flail around in my real app, I wrote a little sample app (just the models) with some similar associations -- one table joined with itself and more tables that join to another table, so there are some queries that