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POTrouble building an ActiveModel in Ruby on Rails 3 using namespaces
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2011-03-04T21:38:12.663
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2011-08-25T23:13:54.883
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2011-08-25T23:13:54.883
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I am using Ruby on Rails 3 and I am trying to build an ActiveModel <a href="https://github.com/rails/rails/blob/master/activemodel/lib/active_model/errors.rb" rel="nofollow">this way</a>: <pre><code>module Users # I use a namespace class Account extend ActiveModel::Naming extend ActiveModel::Translation include ActiveModel::Validations attr_accessor :name attr_reader :errors def initialize @errors = ActiveModel::Errors.new(self) end def validate! errors.add(:name, "can not be nil") if name == nil end # The following methods are needed to be minimally implemented def read_attribute_for_validation(attr) send(attr) end def Account.human_attribute_name(attr, options = {}) attr end def Account.lookup_ancestors [self] end def persisted? false end end </code></pre> If in my controller I make this <pre><code>def create @account = Users::Account.new @account.errors.add( :name, "can not be blank" ) ... end </code></pre> I get this error: <pre><code>undefined method `add' for nil:NilClass </code></pre> If I make <pre><code>@new_account = Users::Account.new </code></pre> the debug of <code>@new_account</code> is <pre><code>--- !ruby/object:Users::Account id: name: surname: updated_at: </code></pre> Where is the error and how can I solve that? <hr> P.S.: I don't want to use <code>validate_presence_of</code> because I need a different validation process, but I think that also that method doesn't work. <hr> If I use the <code>validate!</code> method I get the following error that refers to that <pre><code>NoMethodError in Users/accountsController#create You have a nil object when you didn't expect it! You might have expected an instance of ActiveRecord::Base. The error occurred while evaluating nil.[]= Application trace pp/models/users/account.rb:16:in `validate!' </code></pre>
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<ruby-on-rails><ruby><ruby-on-rails-3><activemodel>
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Trouble building an ActiveModel in Ruby on Rails 3 using namespaces
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