Module: DeepCloneableChecked::DeepCloneChecked

Defined in:
lib/deep_cloneable_checked/deep_clone_checked.rb

Instance Method Summary collapse

Instance Method Details

#deep_clone_checked(options) ⇒ Object 



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# File 'lib/deep_cloneable_checked/deep_clone_checked.rb', line 5

def deep_clone_checked(options)
  missing = validate_clone_check(options)
  
  unless missing.empty?
    raise MissingAssociationError, "Not all associations cloned: #{missing.inspect}"
  end
  
  deep_clone(options)
end

#validate_clone_check(options) ⇒ Object 



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# File 'lib/deep_cloneable_checked/deep_clone_checked.rb', line 15

def validate_clone_check(options)
  checked = Set[]

  check_missing = lambda do |klass, includes, excludes|
    includes = DeepCloneableChecked.options_to_hash(includes)
    excludes = DeepCloneableChecked.options_to_hash(excludes)
    # puts "-----------\n klass: #{klass.name}, includes: #{includes.inspect}, excludes: #{excludes.inspect}"

    # If we have already checked this class then we assume we don't
    # clone it in a different manner. This assumption might not be valid
    # but assuming otherwise would be complex and YAGNI (hopefully).
    return nil if checked.include? klass

    checked << klass
    associations = klass.reflections

    associations.map do |association_name, reflection|
      next nil if reflection.is_a? ActiveRecord::Reflection::ThroughReflection
      next_excludes = excludes[association_name.to_sym]
      next_includes = includes[association_name.to_sym]
  
      if next_includes
        # puts "inclusion: #{inclusion.inspect}, association_name: #{association_name}"
        result = check_missing[reflection.klass, next_includes, next_excludes]
        if !result.blank?
          # puts "missing from #{reflection.klass.name}, #{association_name}"
          Hash[association_name.to_sym, result]
        end
      else
        # puts "No inclusion for #{association_name}, inclusion: #{inclusion.inspect}, to_exclude: #{to_exclude.inspect}"
        if next_excludes
          nil
        else
          # puts "No exclusion either"
          association_name.to_sym
        end
      end
    end.compact
  end
  
  check_missing[self.class, options[:include] || [], options[:exclude] || []]
end