Class: SimpleValidator

Inherits:
Object
  • Object
show all
Defined in:
lib/simple_validator.rb

Instance Method Summary collapse

Instance Method Details

#check_hash(hash, constraints, cast = false) ⇒ Object

Raises:

  • (ArgumentError)


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# File 'lib/simple_validator.rb', line 2

def check_hash(hash, constraints, cast=false)
  raise ArgumentError unless hash.is_a?(Hash)
  check_hash_constraints(constraints)

  unknown = []
  missing = []
  invalid = []

  constraints[:required].each do |constraint|
    if hash.has_key?(constraint[:key])
      if cast
        if check_cast(hash[constraint[:key]], constraint[:type])
          invalid << constraint[:key]
        end
      elsif !hash[constraint[:key]].is_a?(constraint[:type])
        invalid << constraint[:key]
      end
    else
      missing << constraint[:key]
    end
  end

  hash.each_key do |key|
    required = constraints[:required].any? { |constraint| key.to_sym == constraint[:key] }
    optional = constraints[:optional].any? { |constraint| key.to_sym == constraint[:key] }

    if !required && !optional
      unknown << key
    end
  end

  case
  when !invalid.empty? && !unknown.empty? && !missing.empty?
    { :invalid => invalid, :unknown => unknown, :missing => missing }
  when !invalid.empty? && !unknown.empty?
    { :invalid => invalid, :unknown => unknown }
  when !invalid.empty? && !missing.empty?
    { :invalid => invalid, :missing => missing }
  when !unknown.empty? && !missing.empty?
    { :unknown => unknown, :missing => missing }
  when !unknown.empty?
    { :unknown => unknown }
  when !missing.empty?
    { :missing => missing }
  when !invalid.empty?
    { :invalid => invalid }
  end
end