Class: Dry::Validation::Messages::Template Private

Inherits:
Object
  • Object
show all
Defined in:
lib/dry/validation/template.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Template wraps a string with interpolation tokens and defines evaluator function dynamically

Constant Summary collapse

TOKEN_REGEXP =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

/%{(\w*)}/

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(text, tokens, evaluator) ⇒ Template

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of Template.



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# File 'lib/dry/validation/template.rb', line 47

def initialize(text, tokens, evaluator)
  @text = text
  @tokens = tokens
  @evaluator = evaluator
end

Instance Attribute Details

#evaluator ⇒ Proc (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

!@attribute [r] evaluator

Returns:

  • (Proc) 


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# File 'lib/dry/validation/template.rb', line 27

def evaluator
  @evaluator
end

#text ⇒ String (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

!@attribute [r] text

Returns:

  • (String) 


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# File 'lib/dry/validation/template.rb', line 19

def text
  @text
end

#tokens ⇒ Hash (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

!@attribute [r] tokens

Returns:

  • (Hash) 


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# File 'lib/dry/validation/template.rb', line 23

def tokens
  @tokens
end

Class Method Details

.[](input) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/dry/validation/template.rb', line 30

def self.[](input)
  new(*parse(input))
end

.parse(input) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/dry/validation/template.rb', line 35

def self.parse(input)
  tokens = input.scan(TOKEN_REGEXP).flatten(1).map(&:to_sym)
  text = input.gsub('%', '#')

  evaluator = <<-RUBY.strip
    -> (#{tokens.map { |token| "#{token}:" }.join(", ")}) { "#{text}" }
  RUBY

  [text, tokens, eval(evaluator, binding, __FILE__, __LINE__ - 3)]
end

Instance Method Details

#call(data = EMPTY_HASH) ⇒ Object Also known as: []

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/dry/validation/template.rb', line 59

def call(data = EMPTY_HASH)
  data.empty? ? evaluator.() : evaluator.(data)
end

#data(input) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/dry/validation/template.rb', line 54

def data(input)
  tokens.each_with_object({}) { |k, h| h[k] = input[k] }
end