Class: Grape::Validations::Types::PrimitiveCoercer

Inherits:
DryTypeCoercer show all
Defined in:
lib/grape/validations/types/primitive_coercer.rb

Overview

Coerces the given value to a type defined via a type argument during initialization. When strict is true, it doesn't coerce a value but check that it has the proper type.

Constant Summary collapse

REJECTED_INPUTS =

The input classes Virtus refused for a given declared type, keyed by that type. Resolved once in #initialize rather than re-derived from type on every value: the answer only ever depends on the declaration, and every coerced attribute of every request asks.

{ String => [Array, Hash].freeze, Hash => [String].freeze }.freeze

Instance Method Summary collapse

Methods inherited from DryTypeCoercer

coercer_instance_for, collection_coercer_for

Methods included from Util::FreezeOnNew

#new

Constructor Details

#initialize(type, strict: false) ⇒ PrimitiveCoercer

Returns a new instance of PrimitiveCoercer.



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# File 'lib/grape/validations/types/primitive_coercer.rb', line 16

def initialize(type, strict: false)
  super

  @coercer = cache_coercer[type]
  @rejected_inputs = REJECTED_INPUTS[type]
  @treat_empty_as_nil = type != String
end

Instance Method Details

#call(val) ⇒ Object 



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# File 'lib/grape/validations/types/primitive_coercer.rb', line 24

def call(val)
  return InvalidValue.new if reject?(val)
  return if val.nil? || treat_as_nil?(val)

  super
end