Ruby on Rails

On 14 June 2015 at 18:55, Elizabeth McGurty <emcg...@gmail.com> wrote:
> Just wondering why you don't validate the presence/absence of gender_name on
> creation of a new record...

I think it is not gender_name that is missing, but the gender object itself.

Colin

>
>
>
> On Sunday, June 14, 2015 at 3:27:56 AM UTC-4, Ruby-Forum.com User wrote:
>>
>> please help solve the problem.
>>
>> There is a table users:
>> id :integer, autoincrement
>> name :string
>> gender_id :integer
>>
>> There is a table genders:
>> id :integer, autoincrement
>> gender_name :string
>>
>> model User:
>> class User < ActiveRecord::Base
>>   belongs_to  :gender
>> end
>>
>> model Gender:
>> class Gender < ActiveRecord::Base
>>   has_many  :users
>> end
>>
>> I need the gendername. I try to do so:
>> <% @users.each do |user| %>
>>     <div class="col-xs-6"><%= user.name %></div>
>>     <div class="col-xs-2"><%= user.gender_id %></div>
>> <% end %>
>>
>> the result is output number, but I need to gendername
>>
>>
>>
>>
>> p.s.
>> so I tried:
>> <div class="col-xs-2"><%= user.gender.gender_name %></div>
>>
>> in this case receives the following error message:
>> undefined method `gender_name' for nil:NilClass
>>
>> --
>> Posted via http://www.ruby-forum.com/.
>
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