Counting in the view issue?

Question

I'm working with Ruby on Rails, and wrote an application to count results in my view, but it is not working.

Here are my tables:

|policies| |id| |num| 1 1234 2 5678 3 1551 |debts| |id| |policy_id| 1 1 2 1 3 2 4 2 5 3 6 2

I want this:

 |policy_id| |count_num| 1 2 2 3 3 1

Here is my controller:

class PolicyManagement < ApplicationController def generate_print_cupons @search = Debt.find(:all,:group=>:policy_id) end end

Here is my model:

class Debt < ActiveRecord::Base belongs_to :policy end class Policy < ActiveRecord::Base has_many :debts end

This is my view:

 <% @search.each do |debt| %> <%= debt.policy.num %> <% end %>

I'm trying to count debt.policy.num.

I tried:

 <% @search.each do |debt| %> <%= debt.count(:num) %> <% end %> undefined method `count' for #<ActiveRecord::Associations::BelongsToAssociation:0x7fb5afefd050>

And also I tried:

 <% @search.each do |debt| %> <%= debt.num.count %> <% end %> undefined method `count' for 41:Fixnum

Please somebody can help me with this?

What exactly is num on the policies table?

CDub
– CDub

2013-10-28 16:50:50 +00:00
Commented Oct 28, 2013 at 16:50 — CDub
– CDub, Commented Oct 28, 2013 at 16:50

CDub · Accepted Answer · 2013-10-28 17:11:50Z

2

If the goal is to count the number of debts for each policy, why not perform the count from Policy rather than Debt?

Your controller would change to something like:

class PolicyManagement < ApplicationController def generate_print_cupons @search = Policy.all end end

Then your view could be as trivial as:

<% @search.each do |policy| %> <%= policy.debts.size %> <% end %>

edited Oct 28, 2013 at 17:11

answered Oct 28, 2013 at 16:52

CDub

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4 Comments

CDub Over a year ago

What is num in policies?

Carlos Morales Over a year ago

I added more details on the top.Num is integer.

CDub Over a year ago

Updated the answer based on the question change

Carlos Morales Over a year ago

Many thanks!! it worked for me. I appreciate your help. 1 point :)

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