Module: RejectDeeplyNested

Defined in:
lib/reject_deeply_nested.rb,
lib/reject_deeply_nested/version.rb

Constant Summary collapse

DEFAULT_IGNORE_VALUES = 
[/_destroy/]
BLANK = 
proc { |attributes| deep_blank?(attributes) }
SMART_BLANK = 
proc do |ignore_values, attributes|
  deep_blank?(attributes, Array(ignore_values) + DEFAULT_IGNORE_VALUES)
end
VERSION = 
"0.1.0"

Class Method Summary collapse

Class Method Details

.deep_blank?(hash, ignore_values = DEFAULT_IGNORE_VALUES) ⇒ Boolean

Recursively traverse nested attributes to define is all values blank. Additionaly considers that value with _destroy key is always blank.



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# File 'lib/reject_deeply_nested.rb', line 16

def self.deep_blank?(hash, ignore_values = DEFAULT_IGNORE_VALUES)
  hash.each do |key, value|
    next if ignore_values.any? { |ignore_value| key =~ ignore_value }
    any_blank = value.is_a?(Hash) ? deep_blank?(value, ignore_values) : value.blank?
    return false unless any_blank
  end
  true
end