Module: RecipeScrapers::Parsers::Chain Private

Defined in:
lib/recipe_scrapers/parsers/chain.rb

Overview

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

Runs the parsers of a field in order until one returns something. A parser returns a hash of the model's attributes, which becomes the model, or nil. A parser that raises, or returns a hash with an unknown key, goes to Configuration#error_tracker, and the next one is tried.

Constant Summary collapse

FIELDS =

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. 

%i[ingredients nutrients].freeze

Class Method Summary collapse

Class Method Details

.defaults ⇒ 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/recipe_scrapers/parsers/chain.rb', line 17

def defaults
  { ingredients: [Ingredients], nutrients: [Nutrients] }
end

.field!(field) ⇒ 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.

Raises:

  • (ArgumentError) 


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# File 'lib/recipe_scrapers/parsers/chain.rb', line 21

def field!(field)
  return field if FIELDS.include?(field)

  raise ArgumentError, "no parser can be set for #{field.inspect}, only for #{FIELDS.join(", ")}"
end

.run(field, parsers, text, language:) ⇒ 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/recipe_scrapers/parsers/chain.rb', line 27

def run(field, parsers, text, language:)
  parsers.each do |parser|
    result = attempt(field, parser, text, language)
    return result unless result.nil?
  end
  nil
end