similar to: Syntax Error in find()

If I make a change to a database table, how do I recreate the model to reflect the change? -- Posted via http://www.ruby-forum.com/.

Can someone point me to a reference or tutorial that shows how to map foreign key relationships in the model? For example given: Users id name email Posts id user_id title How do I associate user_id with users.id in the Post and User models? has_many and belongs_to don''t seem to do it. -- Posted via http://www.ruby-forum.com/.

Hi all, I can''t figure out why my radio_buttons won''t reflect the values stored in my database. I read through some of the previous posts -- is it true that they don''t work with integers? This is the code I''m using: <% for question in @survey.questions %> <%= debug question %> <%= radio_button ( "question", :question_id,

Hi, I have a many-to-many relationship between two tables, questions and answers. My MySQL schema for the link table creates a primary key from the two fields to prevent duplicate records. When I add the same answer to the same question more than once, rails attempts to create a duplicate record and explodes with a MySQL error: MysqlError: Duplicate entry ''3-3'' for key 1:

For example I have table Questions. With fields id, text, and test_id. test_id is not being displayed in my view. I am hoping this means Rails has picked up that it is an id for another model. If so, then how do I utilize that? If not, then do I need to avoid ''id'' in any field names other than the main id field? Thanks! -- Posted via http://www.ruby-forum.com/.

I''ve been reading my Agile Dev book over and over again, but I can''t wrap my head around how to do this. There''s a question and answer portion site of my site. You begin the process by adding a question to the database. After that, the program should redirect you straight to adding an answer for that question. The problem is, I don''t know how to keep

I''m a java/php programmer trying out Ruby/Rails on my Dreamhost account. I followed the wiki steps to the letter (2x now) and am still getting a 404 when I hit my dispatch.fcgi. http://mydomain.com/public/dispatch.fgci Can someone give me suggestions on how to debug this problem? Here is my dispatch.fcgi file: #!/usr/bin/env ruby # # You may specify the path to the FastCGI crash log

How do I alter the "new" action so that it returns to a page of my specification (vs. returning to "list")? Thanks. -- Posted via http://www.ruby-forum.com/.

New to Ruby on Rails. I''ve been playing around with an application I set up at rails.foo.com. Basically this means that all my pages tied to the application live on that subdomain. Is there any reason for not just installing onto your parent domain foo.com and putting your static pages in the public dir that ruby on rails creates? The answer seems like a simple yes, however all the

I am unable to connect to my databases. Here is the error I am getting: MysqlError (Can''t connect to local MySQL server through socket ''/var/run/mysqld/mysqld.sock'' (2)): Here is my database.yml: # MySQL (default setup). Versions 4.1 and 5.0 are recommended. # # Get the fast C bindings: # gem install mysql # (on OS X: gem install mysql --

Please could someone suggest what might be wrong here. In my view I''m displaying a series of check boxes and when the form is submitted I want the controller to iterate over the values and contatenate them all into a string "1" if the box was checked and "0" if it wasn''t. I''m new to Ruby and Rails and I can''t seem to get any values out of

Hi list, My tag_question_user join table is not currently a full-blown model. It doesn''t have a primary key - just tag_id, question_id, and user_id. I now want to add a primary key to this model (because I want to add a "description" column as well so users can describe the tag. I''m not sure how to add this using migrations. Here is what I have: class AddNotesToTags

I am having problems updating a div defined in a partial using both Element.update and page.replace_html in an rjs. I can put a link_to_remote in the partial using an :update, and the div updates fine. Does anyone have any idea why this might be happening? In the partial: <div><div> . . <div id="question_<%=question.id%>_error"></div> . (if a

Hi, I have a Question model where the answer to the question can have multiple db type (integer, string, boolean, ...). I would like to know if you have a better solution than this one: Question: question:string answer_type:string AnsweredQuestion: question_id:integer answer:text answer_type:string Ex: AnsweredQuestion.create(:question => 1, :answer => ''5'',

What does the Magic Field Name position do? I was looking here: http://wiki.rubyonrails.com/rails/pages/MagicFieldNames And unfortunately that documentation is incomplete. Thanks. -- Posted via http://www.ruby-forum.com/.

Hi all, I am having a problem with unit tests. Whenever I have a dependency between two models (B depends on A) deleting A should also delete B. This is simple with the dependent parameter in the model file of A. But when I write a test the dependency seems to work, I can''t find the answer with id 1 anymore(Answer.find(1)). But I appearently _do_ find it with

Hi, I am running R from windows 95. I have a large simulation, which R does not get very far through before telling me: "error cannot allocate vector of size 871875 Kb" and warning message "reached total allocation of 127 Mb" I have been trying to increase the memory allocation to R from my computer, using various commands at the R prompt, such as memory.limit(size=......)

Hi, I''ve been working on a multiple choice Question/Answer system. The response object (analagous to a lineitem) has a question_id, user_id, and the actual response. What''s a good way of making a form with multiple response objects which are created from the radio_button helper? Right now I''ve got the following code:

Hi, i have 4 tables: questions, answers, users, and inquiries (relationship) def index question_id = params[:id].to_i question = Question.find(question_id) @answers = question.answers respond_to do |format| format.ext_json { render :json => @answers.to_ext_json(:class => Answer) } end end I have several scaffold in extjs, when I click on row, i get

I have a person has many questions through person_questions. I have an extra column in the join table for the answer. The section below works for a new submit but when I edit I get 3 each with the first 2 of each selected tand the third not so I get 6 check boxes some selected some not. Is there a way to get this to work properly os just the questions in the db show up once each with the