Module: Jat::Plugins::BasePreloads::AttributeMethods

Defined in:
lib/jat/plugins/base/base_preloads/base_preloads.rb

Constant Summary collapse

NULL_PRELOADS = 
[nil, [].freeze].freeze

Instance Method Summary collapse

Instance Method Details

#get_preloads_with_path ⇒ Object

When provided multiple values in preloads, such as { user: [:profile] }, we don’t know which entity is main (:user or :profile in this example) but we need to know main value to add nested preloads to it. User can specify main preloaded entity by adding “!” suffix ({ user!: [:profile] } for example), otherwise the latest key will be considered main.



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# File 'lib/jat/plugins/base/base_preloads/base_preloads.rb', line 40

def get_preloads_with_path
  preloads_provided = opts.key?(:preload)
  preloads =
    if preloads_provided
      opts[:preload]
    elsif relation?
      key
    end

  # Nulls and empty hash differs as we can preload nested results to
  # empty hash, but we will skip nested preloading if null or false provided
  return NULL_PRELOADS if preloads_provided && !preloads

  preloads = FormatUserPreloads.to_hash(preloads)
  preloads, path = PreloadsWithPath.call(preloads)

  [EnumDeepFreeze.call(preloads), path.freeze]
end

#preloads ⇒ Object 



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# File 'lib/jat/plugins/base/base_preloads/base_preloads.rb', line 21

def preloads
  return @preloads if defined?(@preloads)

  @preloads, @preloads_path = get_preloads_with_path
  @preloads
end

#preloads_path ⇒ Object 



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# File 'lib/jat/plugins/base/base_preloads/base_preloads.rb', line 28

def preloads_path
  return @preloads_path if defined?(@preloads_path)

  @preloads, @preloads_path = get_preloads_with_path
  @preloads_path
end