Class: Hash
- Inherits:
-
Object
- Object
- Hash
- Defined in:
- lib/helpful_fields/core_ext/hash.rb
Instance Method Summary collapse
-
#value_from_nested_key(key) ⇒ Object
‘x’=>{‘y’=>{‘z’=>1}.value_from_nested_key(‘x[z]’) => 1.
Instance Method Details
#value_from_nested_key(key) ⇒ Object
‘x’=>{‘y’=>{‘z’=>1}.value_from_nested_key(‘x[z]’) => 1
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# File 'lib/helpful_fields/core_ext/hash.rb', line 3 def value_from_nested_key(key) if key.to_s.include?('[') match, first, nesting = key.to_s.match(/(.+?)\[(.*)\]/).to_a value = self[first] nesting.split('][').each do |part| return nil unless value.is_a?(Hash) value = value[part] end value else self[key] end end |