Module: CompositePrimaryKeys::ActiveRecord::Relation::InstanceMethods

Defined in:
lib/composite_primary_keys/relation.rb

Instance Method Summary collapse

Instance Method Details

#delete(id_or_array) ⇒ Object 



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# File 'lib/composite_primary_keys/relation.rb', line 21

def delete(id_or_array)
  # CPK
  # where(@klass.primary_key => id_or_array).delete_all
  where(ids_predicate(id_or_array)).delete_all
end

#destroy(id) ⇒ Object 



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# File 'lib/composite_primary_keys/relation.rb', line 27

def destroy(id)
  # CPK
  #if id.is_a?(Array)
  #  id.map { |one_id| destroy(one_id) }
  #else
    find(id).destroy
  #end
end

#ids_predicate(id) ⇒ Object 



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# File 'lib/composite_primary_keys/relation.rb', line 5

def ids_predicate(id)
  predicate = nil

  if id.kind_of?(CompositePrimaryKeys::CompositeKeys)
    id = [id]
  end

  id.each do |composite_id|
    self.primary_keys.zip(composite_id).each do |key, value|
      eq = table[key].eq(value)
      predicate = predicate ? predicate.and(eq) : eq
    end
  end
  predicate
end