Sessions in Rails

rubyonrails-talk
1

I'm sorry, I originally posted this topic on Rails-Deployment, but it's evidently the wrong area. I didn't want to, did that on distraction, sorry :slight_smile:

Anyway, the original post was this below:

Hello! I'm at my very first application in Rails, and I'm learning from Agile Development with Rails.

I'm developing a web app that is run as a questionary. The idea is to create a database of questions (like 50), but use only like 10-15 each session, for each user. You can start the questionary only if you give your email address(validatates_presence_of).

The point I'm wondering about is : since the answers are multiples and the sessions too, how can I keep track about whose belong certains answers? Shall I haven't a pool of mixed answers? I was thinking about a migration with 16 slots (email, and 15 slots for each answer), could that work? I know it's not exactly in the DRY logic, but in this way I'll have a complete table, with which I could also calculate how many correct answer the user did, and statistics stuff like that.

2

I’m sorry, I originally posted this topic on Rails-Deployment, but it’s evidently the wrong area. I didn’t want to, did that on distraction, sorry :slight_smile: Anyway, the original post was this below:

Hello! I’m at my very first application in Rails, and I’m learning from Agile Development with Rails.

Welcome!

I’m developing a web app that is run as a questionary. The idea is to create a database of questions (like 50), but use only like 10-15 each session, for each user. You can start the questionary only if you give your email address(validatates_presence_of).

The point I’m wondering about is : since the answers are multiples and the sessions too, how can I keep track about whose belong certains answers? Shall I haven’t a pool of mixed answers? I was thinking about a migration with 16 slots (email, and 15 slots for each answer), could that work? I know it’s not exactly in the DRY logic, but in this way I’ll have a complete table, with which I could also calculate how many correct answer the user did, and statistics stuff like that.

Have you considered a structure such as:

tables: questions (id, …) answers (id, question_id, result_id, …) results (id, email, …)

With…

class Question < ActiveRecord::Base has_many :answers end

class Answer < ActiveRecord::Base belongs_to :question belongs_to :result end

class Result < ActiveRecord::Base has_many :answers end

With this setup, you’d create a Result once a user gives you a valid email address (this could include checking if there is already a “result” from that email address). Then, your main questionnaire form loads a random set of Question instances (10-15) and, using them, renders your form(s) to ask them. As responses come in, you create/validate Answer instances that are linked to the current Result (represents the client’s questionnaire session) and the proper Question.

3

Thanks very much! I'll mess around with the code and I'll let you know :slight_smile:

4

I've got an issue :how can I pick datas from a controller to another controller's view?

For example, how can I show a Question in the Answer's index.html.erb?

If i write <%= @questions.question %> on Answer's index.html.erb, it doesn't

5

hmmm not really sure if I understand your question but here goes..

class AnswerController < ApplicationController   def index     @questions = Question.find(:all)   end end

If you have this code on your controller then the reason why it doesn't recognize your method is because @questions here is an Array of Questions. So you have to loop through your array and display each question.

So i think you have to do this on your index.html.erb

<% @questions.each do |q| %>    <%= q.question %> <% end %>

6

It was this, so the method index had to be copied exactly how it is to another controller in order to can list another controller's array. Right!

Thank you very much :slight_smile: