Hi, I have an algorithmic problem, and also problem with writing my idea's in Ruby Way.
I have model Section which keeps info about sections like (history, mathematic, biology etc.). I also have model with Question for questions appropriate to one category. I set correct relations between them (has_many, belongs_to), so I can get questions from first by: Section.find(:first).questions (I know it's an array*)
code:
<% for section in @sections %> Section: <%= section.name %> <% for question in section.questions %> Question: <%= question.id %> - <%= question.body %> <% end %> <% end %>
will give me something like: Section: History Question: 2 - Lorem ipsum a Question: 3 - Lorem ipsum b Question: 7 - Lorem ipsum c Question: 12 - Lorem ipsum d
Section: Biology Question: 4 - Lorem ipsum x Question: 6 - Lorem ipsum y Question: 8 - Lorem ipsum z Question: 9 - Lorem ipsum w
Now I want to generate collection of random and unique questions from every category. Something like: Question: 3 - Lorem ipsum b Question: 7 - Lorem ipsum c Question: 4 - Lorem ipsum x Question: 9 - Lorem ipsum w
*Using array, it would be something like (but should I do it this way?): a = Array.new(10) b = Array.new(7) a.fill {|i| i} r1 = 0..6 r1.each do |j| i = rand(10-j) x = a[i] b[j] = x a.delete_at(i) end
Please give me some advice to write it with Rails in Ruby way 
Thanks in advance
