class Assert::Assertions::NotBlank(PropertyType)

• Assert::Assertions::NotBlank(PropertyType)
• Assert::Assertions::Assertion
• Reference
• Object

Overview

Validates a property is not blank, that is, does not consist exclusively of unicode whitespace.

Optional Arguments

• normalizer - Execute a Proc to alter actual before checking its validity.

Example

class Example
  include Assert

  def initialize; end

  @[Assert::NotBlank]
  property string : String = "foo"

  @[Assert::NotBlank]
  property single_character : String = "   a   "

  @[Assert::NotBlank]
  property nilble_string : String? = nil

  @[Assert::NotBlank(normalizer: ->(actual : String) { "Hello #{actual}" })]
  property normalizer : String = ""
end

Example.new.valid? # => true

Defined in:

Constructors

• .new(property_name : String, actual : Union(String, Nil), normalizer : Proc(String, String) | Nil = nil, message : String | Nil = nil, groups : Array(String) | Nil = nil)

Instance Method Summary

• #default_message_template : String

  Returns the default #message_template to use if no message is provided.

• #message : String

  The message to display if self is not valid.

• #valid? : Bool

  Returns true if a property satisfies self, otherwise false.

Constructor Detail

Instance Method Detail