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PORails: why isn't this marked_for_destruction not destroyed?
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  1. PORails: why isn't this marked_for_destruction not destroyed?
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    copied!<p>** update ** it all seems to be related to a custom validator: if I remove it, it works as expected. see code at the end **</p> <p>I have a model <code>budget</code> that has many <code>multi_year_impacts</code></p> <p>in the console, if I run:</p> <pre><code>b = Budget.find(4) b.multi_year_impacts.size #=&gt; 2 b.update_attributes({multi_year_impacts_attributes: {id: 20, _destroy: true} } ) #=&gt; true b.multi_year_impacts.size #=&gt; 1 (so far so good) b.reload b.multi_year_impacts.size #=&gt; 2 What??? </code></pre> <p>and if before <code>b.reload</code> I do <code>b.save</code> (which shouldn't be needed anyway), it's the same.</p> <p><strong>Any idea why my child record doesn't get destroyed?</strong></p> <p>Some additional information, just in case:</p> <p>Rails 3.2.12</p> <p>in <code>budget.rb</code></p> <pre><code>attr_accessible :multi_year_impacts_attributes has_many :multi_year_impacts, as: :impactable, :dependent =&gt; :destroy accepts_nested_attributes_for :multi_year_impacts, :allow_destroy =&gt; true validates_with MultiYearImpactValidator # problem seems to com from here </code></pre> <p>in <code>multi_year_impact.rb</code></p> <pre><code>belongs_to :impactable, polymorphic: true </code></pre> <p>in <code>multi_year_impact_validator.rb</code></p> <pre><code>class MultiYearImpactValidator &lt; ActiveModel::Validator def validate(record) return false unless record.amount_before &amp;&amp; record.amount_after &amp;&amp; record.savings lines = record.multi_year_impacts.delete_if{|x| x.marked_for_destruction?} %w[amount_before amount_after savings].each do |val| if lines.inject(0){|s,e| s + e.send(val).to_f} != record.send(val) record.errors.add(val.to_sym, " please check \"Repartition per year\" below: the sum of all lines must be equal of total amounts") end end end end </code></pre>
 

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