Ruby on Rails cant access instance variables

Question

sorry for the lame question, but I'm new to ruby on rails and I'm trying to list all objects of a model when I'm rendering the 'new' view of another model and I'm getting an error

I have my cliente_controller.rb that has:

class ClientesController < ApplicationController
  before_action :set_cliente, only: [:show, :edit, :update, :destroy]

  # GET /clientes/new
  def new
    @cliente = Cliente.new
    @advogados = Advogado.find(:all)
  end

and at my cliente/new.html.erb I have:

  <% @advogados.each do |advogado| %>
    <%= @advogado.nome %>
  <% end %>

and the error thrown is:

    undefined method `nome' for nil:NilClass

but when I do:

  <%= @advogados %>

It prints:

[#<Advogado id: 5, nome: "Adv1", created_at: "2014-05-02 13:58:33", updated_at: "2014-05-02 13:58:33">, #<Advogado id: 6, nome: "Adv2", created_at: "2014-05-02 13:58:48", updated_at: "2014-05-02 13:58:48">]

So @advogados is not null, but somehow I can't access the variables when looping through it. Any ideias?

Thanks

BroiSatse · Accepted Answer · 2014-05-02 14:22:41Z

4

<%= advogado.nome %>

Not

<%= @advogado.nome %>

answered May 2, 2014 at 14:22

BroiSatse

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Comments

sevenseacat · Accepted Answer · 2014-05-02 14:23:39Z

2

Your code is iterating over your list of @advogados and storing each one in the variable advogado for the duration of the block.

Inside the block you should be using advogado, not @advogado. So call advogado.nome.

answered May 2, 2014 at 14:23

sevenseacat

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Wit Wikky · Accepted Answer · 2014-05-02 14:29:35Z

1

@advogado.nome should be advogado.nome , check this instance variables in ruby on rails

<% @advogados.each do |advogado| %>
   <%=advogado.nome%>
<% end %>

answered May 2, 2014 at 14:29

Wit Wikky

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Comments

Arup Rakshit · Accepted Answer · 2014-05-02 14:46:19Z

1

Is <%= advogado.nome %> because you are redefined into the each.

edited May 2, 2014 at 14:46

Arup Rakshit

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answered May 2, 2014 at 14:26

skozz

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