Flowdock
method

construct_association

Importance_0
construct_association(record, join, row) protected

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# File activerecord/lib/active_record/associations.rb, line 1328
            def construct_association(record, join, row)
              case join.reflection.macro
                when :has_many, :has_and_belongs_to_many
                  collection = record.send(join.reflection.name)
                  collection.loaded
    
                  return nil if record.id.to_s != join.parent.record_id(row).to_s or row[join.aliased_primary_key].nil?
                  association = join.instantiate(row)
                  collection.target.push(association) unless collection.target.include?(association)
                when :has_one, :belongs_to
                  return if record.id.to_s != join.parent.record_id(row).to_s or row[join.aliased_primary_key].nil?
                  association = join.instantiate(row)
                  record.send("set_#{join.reflection.name}_target", association)
                else
                  raise ConfigurationError, "unknown macro: #{join.reflection.macro}"
              end
              return association
            end
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