Module: Julewire::Core::Integration::Values::Read

Defined in:
lib/julewire/core/integration/values.rb

Class Method Summary collapse

Class Method Details

.blank?(value) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/julewire/core/integration/values.rb', line 29

def blank?(value)
  blank_value?(value)
end

.first_value(source, keys:) ⇒ Object 



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# File 'lib/julewire/core/integration/values.rb', line 70

def first_value(source, keys:)
  if source.is_a?(Hash)
    found = direct_hash_first_value(source, keys)
    return found unless found.equal?(MISSING)
  end

  keys.each do |key|
    found = indexed_value(source, key)
    return found unless found.equal?(MISSING) || blank_value?(found)
  end
  nil
end

.hash_value(hash, key, default: nil) ⇒ Object 



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# File 'lib/julewire/core/integration/values.rb', line 33

def hash_value(hash, key, default: nil)
  return default unless hash.is_a?(Hash)

  direct_hash_value(hash, key, default)
end

.nested_value(object, *keys, default: nil) ⇒ Object 



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# File 'lib/julewire/core/integration/values.rb', line 49

def nested_value(object, *keys, default: nil)
  current = object
  keys.each do |key|
    return default if current.nil?

    current = value(current, key)
  end
  current.nil? ? default : current
end

.path_value(object, path, default: nil) ⇒ Object 



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# File 'lib/julewire/core/integration/values.rb', line 59

def path_value(object, path, default: nil)
  current = object
  Array(path).each do |key|
    return default if current.nil?

    current = indexed_value(current, key)
    return default if current.equal?(MISSING)
  end
  current
end

.value(object, key, default: nil) ⇒ Object 



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# File 'lib/julewire/core/integration/values.rb', line 39

def value(object, key, default: nil)
  return hash_value(object, key, default: default) if object.is_a?(Hash)

  return default unless object.respond_to?(key)

  object.public_send(key)
rescue StandardError
  default
end