Class: Pastvu::ValueCheck

Inherits:
Object
  • Object
show all
Defined in:
lib/pastvu/params_validator/value_check.rb

Constant Summary collapse

VALIDATIONS = 
{
  distance: ->(d) { d.between?(1, 1_000_000) },
  geo:     [->(g) { g.size == 2 },
            ->(g) { g.all? { |coordinate| coordinate.instance_of?(Float) || coordinate.instance_of?(Integer) } }],
  geometry: ->(g) do
              begin
                permitted_types  = %w[Polygon Multipolyigon]
                permitted_types.any? { |t| t == g["type"] }
              rescue TypeError
                false
              end
            end,
  limit:    ->(l) { l.between?(1, 30) },
  type:     ->(t) { %w[photo painting].any?(t.downcase) }
}

Class Method Summary collapse

Class Method Details

.call_each(array, argument) ⇒ Object 



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# File 'lib/pastvu/params_validator/value_check.rb', line 45

def self.call_each(array, argument)
  array.each do |lambda|
    return false unless lambda.call(argument)
  end

  true
end

.report_errors(errors) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/pastvu/params_validator/value_check.rb', line 37

def self.report_errors(errors)
  report = errors.map do |k, v|
    "\n#{k}: #{v[0]}"
  end.join(", ")

  raise ArgumentError, "expect params to pass validations\n #{report}"
end

.validate(params) ⇒ Object 



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# File 'lib/pastvu/params_validator/value_check.rb', line 19

def self.validate(params)
  errors = {}

  VALIDATIONS.each do |k, v|
    next if params[k].nil?

    next if v.instance_of?(Array) ? call_each(v, params[k]) : v.call(params[k])

    errors.merge!({ k.to_sym => [params[k], v] })
  end

  if errors.empty?
    true
  else
    report_errors(errors)
  end
end