Class: NestedRecord::Methods::Many

Inherits:
NestedRecord::Methods show all
Defined in:
lib/nested_record/methods/many.rb

Instance Method Summary collapse

Methods inherited from NestedRecord::Methods

#attributes_writer_method_name, #define, #define_attributes_writer_method, #reader_method_name, #rewrite_attributes_method_name, #upsert_attributes_method_name, #writer_method_name

Constructor Details

#initialize(setup) ⇒ Many

Returns a new instance of Many.



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# File 'lib/nested_record/methods/many.rb', line 3

def initialize(setup)
  super
  define :reader
  define :writer
  define :rewrite_attributes
  define :upsert_attributes
  define :validation
  define_attributes_writer_method
end

Instance Method Details

#reader_method_body ⇒ Object 



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# File 'lib/nested_record/methods/many.rb', line 17

def reader_method_body
  setup = @setup
  ivar = :"@_#{@setup.name}_collection_proxy"
  proc do
    instance_variable_get(ivar) || instance_variable_set(ivar, setup.collection_proxy_class.new(self))
  end
end

#rewrite_attributes_method_body ⇒ Object 



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# File 'lib/nested_record/methods/many.rb', line 76

def rewrite_attributes_method_body
  setup = @setup
  writer_method_name = self.writer_method_name
  proc do |data|
    attributes_collection =
      if data.is_a? Hash
        data.values
      else
        data
      end
    collection = setup.collection_class.new
    attributes_collection.each do |attributes|
      attributes = attributes.stringify_keys
      next if setup.reject_if_proc&.call(attributes)
      collection.build(attributes)
    end
    public_send(writer_method_name, collection)
  end
end

#upsert_attributes_method_body ⇒ Object 



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# File 'lib/nested_record/methods/many.rb', line 45

def upsert_attributes_method_body
  setup = @setup
  name = @setup.name
  proc do |data|
    attributes_collection =
      if data.is_a? Hash
        data.values
      else
        data
      end
    collection = public_send(name)
    attributes_collection.each do |attributes|
      attributes = attributes.stringify_keys
      next if setup.reject_if_proc&.call(attributes)

      pkey_check = setup.primary_check(attributes['type'])
      unless pkey_check
        raise NestedRecord::ConfigurationError, 'You should specify a primary_key when using :upsert strategy'
      end

      pkey = pkey_check.build_pkey(attributes)

      if (record = collection.find_by(pkey))
        record.assign_attributes(attributes)
      else
        collection.__build__(attributes)
      end
    end
  end
end

#validation_method_body ⇒ Object 



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# File 'lib/nested_record/methods/many.rb', line 96

def validation_method_body
  name = @setup.name
  proc do
    collection = public_send(name)
    collection.map.with_index do |record, index|
      next true if record.valid?
      record.errors.each do |attribute, message|
        error_attribute = "#{name}[#{index}].#{attribute}"
        errors[error_attribute] << message
        errors[error_attribute].uniq!
      end
      record.errors.details.each_key do |attribute|
        error_attribute = "#{name}[#{index}].#{attribute}"
        record.errors.details[attribute].each do |error|
          errors.details[error_attribute] << error
          errors.details[error_attribute].uniq!
        end
      end
      false
    end.all?
  end
end

#validation_method_name ⇒ Object 



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# File 'lib/nested_record/methods/many.rb', line 13

def validation_method_name
  :"validate_associated_records_for_#{@setup.name}"
end

#writer_method_body ⇒ Object 



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# File 'lib/nested_record/methods/many.rb', line 25

def writer_method_body
  setup = @setup
  proc do |records|
    collection_class = setup.collection_class
    if records.is_a? collection_class
      collection = records.dup
    else
      collection = collection_class.new
      records.each { |record| collection << record }
    end
    collection.group_by { |record| setup.primary_check(record.read_attribute('type')) }.each do |check, records|
      next unless check
      records.each do |record|
        check.perform!(collection, record)
      end
    end
    super(collection)
  end
end