class Hash
Public Instance Methods
to_snake_keys(value = self)
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Recursively converts CamelCase and camelBack JSON-style hash keys to Rubyish snake_case, suitable for use during instantiation of Ruby model attributes.
# File lib/snake_keys.rb, line 7 def to_snake_keys(value = self) case value when Array value.map { |v| to_snake_keys(v) } when Hash snake_hash(value) else value end end
Private Instance Methods
snake_hash(value)
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# File lib/snake_keys.rb, line 20 def snake_hash(value) Hash[value.map { |k, v| [underscore_key(k), to_snake_keys(v)] }] end
underscore(string)
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# File lib/snake_keys.rb, line 34 def underscore(string) string.gsub(/::/, '/') .gsub(/([A-Z]+)([A-Z][a-z])/, '\1_\2') .gsub(/([a-z\d])([A-Z])/, '\1_\2') .tr('-', '_') .downcase end
underscore_key(k)
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# File lib/snake_keys.rb, line 24 def underscore_key(k) if k.is_a? Symbol underscore(k.to_s).to_sym elsif k.is_a? String underscore(k) else k # Plissken can't snakify anything except strings and symbols end end