Module: DirModel::Model::Relations

Extended by:
ActiveSupport::Concern
Defined in:
lib/dir_model/model/relations.rb

Instance Method Summary collapse

Instance Method Details

#append_dir_model(source_path, options = {}) ⇒ Model

Appends model to the parent and returns it

Returns:

  • (Model) —

    return the child if it is valid, otherwise returns nil



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# File 'lib/dir_model/model/relations.rb', line 22

def append_dir_model(source_path, options={})
  relation_name = options[:relation_name]
  _options      = options[:relation_options]
  related_class = _options[:dir_model_class]
  foreign_key   = _options[:foreign_key]
  foreign_value = self.send(foreign_key)

  related_dir_model = related_class.new(source_path,
    options.reverse_merge(parent: self, foreign_value: foreign_value))

  return unless related_dir_model

  unless related_dir_model.skip?
    if public_send(relation_name).present?
      raise StandardError.new("There are more of one #{relation_name} => #{related_class} for #{self.class.name}")
    end
    public_send("#{relation_name}=", related_dir_model)
    related_dir_model
  else
    nil
  end
end

#append_dir_models(source_path, options = {}) ⇒ Model

Appends modeld to the parent and returns it

Returns:

  • (Model) —

    return the child if it is valid, otherwise returns nil



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# File 'lib/dir_model/model/relations.rb', line 48

def append_dir_models(source_path, options={})
  relation_name = self.class.has_many_relationship.keys.first
  _options      = self.class.has_many_relationship.values.first
  related_class = _options[:dir_model_class]
  foreign_key   = _options[:foreign_key]
  foreign_value = self.send(foreign_key)

  related_dir_model = related_class.new(source_path,
    options.reverse_merge(parent: self, foreign_value: foreign_value))

  return unless related_dir_model

  unless related_dir_model.skip?
    public_send(relation_name) << related_dir_model
    related_dir_model
  else
    nil
  end
end

#child? ⇒ Boolean

Returns true, if the instance is a child

Returns:

  • (Boolean) —

    returns true, if the instance is a child



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# File 'lib/dir_model/model/relations.rb', line 11

def child?
  !!parent
end

#has_many? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dir_model/model/relations.rb', line 72

def has_many?
  false
end

#has_one? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dir_model/model/relations.rb', line 68

def has_one?
  false
end

#has_relations? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dir_model/model/relations.rb', line 15

def has_relations?
  has_one? || has_many?
end