Class: ActiveRecord::Associations::JoinDependency

Inherits:
Object
  • Object
show all
Defined in:
lib/calculated_attributes/rails_3_patches.rb,
lib/calculated_attributes/rails_4_patches.rb,
lib/calculated_attributes/rails_5_patches.rb,
lib/calculated_attributes/rails_6_patches.rb,
lib/calculated_attributes/rails_5_2_patches.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#calculated_columns=(value) ⇒ Object (writeonly)

Sets the attribute calculated_columns

Parameters:

  • value —

    the value to set the attribute calculated_columns to.



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# File 'lib/calculated_attributes/rails_3_patches.rb', line 51

def calculated_columns=(value)
  @calculated_columns = value
end

Instance Method Details

#instantiate(result_set, &block) ⇒ Object 



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# File 'lib/calculated_attributes/rails_3_patches.rb', line 53

def instantiate(rows)
  primary_key = join_base.aliased_primary_key
  parents = {}

  records = rows.map do |model|
    primary_id = model[primary_key]
    parent = parents[primary_id] ||= join_base.instantiate(model)
    construct(parent, @associations, join_associations, model)
    @calculated_columns.each { |column| parent[column.right] = model[column.right] }
    parent
  end.uniq

  remove_duplicate_results!(active_record, records, @associations)
  records
end