class NonNilValidator
Validates that an attribute's value is not `nil`, but does allow blank, so is an alternative to `validate :attribute, presence: true` when empty should be allowed, but not `nil`.
@example Validation declaration
validates :attribute, non_nil: true
Public Instance Methods
validate_each(model, attribute, value)
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Validates `value` is not `nil`. If `value` is `nil`, then the `:nil` error message is added to `attribute` on `model`.
@param model [#errors] the ActiveModel or ActiveRecord being validated @param attribute [Symbol] the name of the attribute being validated whose value is `value`. @param value [Object, nil] the value of `attribute`. @return [void]
# File app/validators/non_nil_validator.rb, line 15 def validate_each(model, attribute, value) if value.nil? model.errors.add(attribute, :nil) end end