Class: Grape::Validations::Validators::DefaultValidator

Inherits:
Base
  • Object
show all
Defined in:
lib/grape/validations/validators/default_validator.rb

Instance Attribute Summary

Attributes inherited from Base

#attrs

Instance Method Summary collapse

Methods inherited from Base

default_message_key, #fail_fast?, inherited, new, #validate

Constructor Details

#initialize(attrs, options, required, scope, opts) ⇒ DefaultValidator

Returns a new instance of DefaultValidator.



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# File 'lib/grape/validations/validators/default_validator.rb', line 7

def initialize(attrs, options, required, scope, opts)
  super
  # !important, lazy call at runtime
  @default_call =
    if @options.is_a?(Proc)
      @options.arity.zero? ? proc { @options.call } : @options
    elsif @options.duplicable?
      proc { @options.dup }
    else
      proc { @options }
    end
end

Instance Method Details

#validate!(params) ⇒ Object 



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# File 'lib/grape/validations/validators/default_validator.rb', line 20

def validate!(params)
  attrs = SingleAttributeIterator.new(@attrs, @scope, params)
  attrs.each do |resource_params, attr_name|
    next unless @scope.meets_dependency?(resource_params, params)

    resource_params[attr_name] = @default_call.call(resource_params) if hash_like?(resource_params) && resource_params[attr_name].nil?
  end
end