Ruby on rails-Tabular form for input taken from user - ruby-on-rails

Question

I want to print in tabular form the entries given by user. The table will contain 3 columns for name,registration number and classes attended, however the output is not as expected. Its first printing all the names and then all the registration numbers and so on. I want to print a name and the registration number according to name and classes attended.
</head><table width="100%">
<tr>
<th>NAME</th>
<th>REGISTRATION NUMBER</th>
<th>CLASSES ATTENDED</th>
</tr>
<tr>
<% #name_students.each do |t| %>
<th><%= t.name_student %></th><br>
<% end %>
<% #reg_nos.each do |t| %>
<th><%= t.reg_no %></th><br>
<% end %>
<% #classes_ats.each do |t| %>
<th><%= t.classes_at %></th><br>
<% end %>
</tr>
</table>
Here is my controller action.
class PagesController < ApplicationController
def home
#name_students = Page.all
#reg_nos = Page.all
#classes_ats = Page.all
end
def list
#name_students = Page.all
#reg_nos = Page.all
#classes_ats = Page.all
end
def add
Page.create(:name_student => params[:nam])
Page.create(:reg_no => params[:reg])
Page.create(:classes_at => params[:cls])
redirect_to :action => 'home'
end
end

Answer 1

If I understand what you're doing, you should probably have PagesController#home return something like #pages = Page.all object and display the data kind of like this:
<thead>
<tr>
<th>Name</th>
<th>Registration Number</th>
<th>Classes Attended</th>
</tr>
</thead>
<tbody>
<% #pages.each do |p| %>
<tr>
<td><%= p.name %></td>
<td><%= p.registration_number %></td>
<td><%= classes_attended(p.classes_attended) %></td>
</tr>
<% end %>
</tbody>
Above, classes_attended(p) is a call to a helper method that you would use to map the class names of the classes that student attended into an display-able array. Really, that kind of display logic might be better in a decorator, but a helper method should be fine for now.
Let me know if I've totally misunderstood what you're doing, and I'll delete my answer.
Edit to add:
Example index method:
def home
#pages = Page.all
end
Also, looking at your question again, is there a reason you're creating three Page objects with one attribute each instead of one Page object with all three attributes? It should probably look something like Page.create(:name_student => params[:nam], :reg_no => params[:reg], :classes_at => params[:cls]). That's pretty much the only way the solution I posted will work. Again, though, I might be totally misunderstanding what you're going for.