Class: NutritionalCalculator::Plate

Inherits:
Object
  • Object
show all
Defined in:
lib/nutritional_calculator/plate.rb

Overview

Esta clase representa al plato Harvard Este plato tiene partes diferenciadas Además es capaz de calcular el valor nutricional respecto a una base de datos

Constant Summary collapse

DATABASE_FILE =

Fichero donde se encuentra la base da datos de alimentos

"lib/files/food_database.config"
PIECE =

Unidades

50.0
SLICE = 
60.0
PINCH = 
2.0
DRIBBLE = 
1.5
LITRE = 
1000.0
CENTILITRE = 
10.0
CUP = 
20.0
SPOON = 
1.0
BIG =

Multiplicadores

1.5
SMALL = 
0.5

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, &block) ⇒ Plate

Constructor de la clase

Parameters:

  • name (string) —

    nombre que tendrá el plato



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# File 'lib/nutritional_calculator/plate.rb', line 34

def initialize(name, &block)
  @name = name
  @food_database = read_food_database(DATABASE_FILE)

  @vegetables = {}
  @fruits = {}
  @cereals = {}
  @proteins = {}
  @oils = {}
  @drinks = {}

  @nutritional_value = 0.0

  if block_given?
    if block.arity == 1
      yield self
    else
     instance_eval(&block)
    end
  end

end

Instance Attribute Details

#cereals ⇒ Object (readonly)

Atributos que podremos leer



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# File 'lib/nutritional_calculator/plate.rb', line 30

def cereals
  @cereals
end

#drinks ⇒ Object (readonly)

Atributos que podremos leer



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# File 'lib/nutritional_calculator/plate.rb', line 30

def drinks
  @drinks
end

#food_database ⇒ Object (readonly)

Atributos que podremos leer



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# File 'lib/nutritional_calculator/plate.rb', line 30

def food_database
  @food_database
end

#fruits ⇒ Object (readonly)

Atributos que podremos leer



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# File 'lib/nutritional_calculator/plate.rb', line 30

def fruits
  @fruits
end

#name ⇒ Object (readonly)

Atributos que podremos leer



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# File 'lib/nutritional_calculator/plate.rb', line 30

def name
  @name
end

#nutritional_value ⇒ Object (readonly)

Atributos que podremos leer



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# File 'lib/nutritional_calculator/plate.rb', line 30

def nutritional_value
  @nutritional_value
end

#oils ⇒ Object (readonly)

Atributos que podremos leer



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# File 'lib/nutritional_calculator/plate.rb', line 30

def oils
  @oils
end

#proteins ⇒ Object (readonly)

Atributos que podremos leer



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# File 'lib/nutritional_calculator/plate.rb', line 30

def proteins
  @proteins
end

#vegetables ⇒ Object (readonly)

Atributos que podremos leer



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# File 'lib/nutritional_calculator/plate.rb', line 30

def vegetables
  @vegetables
end

Instance Method Details

#cereal(food_name, quantity = {}) ⇒ Object 



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# File 'lib/nutritional_calculator/plate.rb', line 67

def cereal(food_name, quantity = {})
    add_food_to_plate("cereal", food_name, quantity[:amount]) if(quantity[:amount])
end

#drink(food_name, quantity = {}) ⇒ Object 



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# File 'lib/nutritional_calculator/plate.rb', line 79

def drink(food_name, quantity = {})
    add_food_to_plate("drink", food_name, quantity[:amount]) if(quantity[:amount])
end

#fruit(food_name, quantity = {}) ⇒ Object 



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# File 'lib/nutritional_calculator/plate.rb', line 63

def fruit(food_name, quantity = {})
    add_food_to_plate("fruit", food_name, quantity[:amount]) if(quantity[:amount])
end

#oil(food_name, quantity = {}) ⇒ Object 



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# File 'lib/nutritional_calculator/plate.rb', line 75

def oil(food_name, quantity = {})
    add_food_to_plate("oil", food_name, quantity[:amount]) if(quantity[:amount])
end

#protein(food_name, quantity = {}) ⇒ Object 



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# File 'lib/nutritional_calculator/plate.rb', line 71

def protein(food_name, quantity = {})
    add_food_to_plate("protein", food_name, quantity[:amount]) if(quantity[:amount])
end

#to_s ⇒ Object 



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# File 'lib/nutritional_calculator/plate.rb', line 83

def to_s
  output = @name
  output << "\n#{'=' * @name.size}\n\n"
  output << "Composición nutricional:\n\n"
  output << "Alimento".ljust(20) << "categoría".ljust(10)
  output << "proteínas".ljust(10) << "glúcidos".ljust(10) << "lípidos".ljust(10)
  output << "Valor nutricional".ljust(20) <<"Valor nutricional total".ljust(25) << "cantidad".ljust(20) <<  "\n"
  output << "#{'-' * 127}\n"


  @vegetables.each do |name, amount|
    output << name.ljust(20)
    output << "vegetales".ljust(10)
    if @food_database[name]
      output << @food_database[name].proteins.to_s.ljust(10)
      output << @food_database[name].carbohydrates.to_s.ljust(10)
      output << @food_database[name].lipids.to_s.ljust(10)
      output << @food_database[name].get_nutritional_value.round(4).to_s.ljust(20)
      output << calculate_nutritional_value(name, str_amount_2_gr_amount(amount)).round(4).to_s.ljust(25)
      output << amount.ljust(15) << str_amount_2_gr_amount(amount).round(2).to_s.ljust(4) << " g"
    end
    output << "\n"
  end


  @fruits.each do |name, amount|
    output << name.ljust(20)
    output << "frutas".ljust(10)
    if @food_database[name]
      output << @food_database[name].proteins.to_s.ljust(10)
      output << @food_database[name].carbohydrates.to_s.ljust(10)
      output << @food_database[name].lipids.to_s.ljust(10)
      output << @food_database[name].get_nutritional_value.round(4).to_s.ljust(20)
      output << calculate_nutritional_value(name, str_amount_2_gr_amount(amount)).round(4).to_s.ljust(25)
      output << amount.ljust(15) << str_amount_2_gr_amount(amount).round(2).to_s.ljust(4) << " g"
    end
    output << "\n"
  end

  @cereals.each do |name, amount|
    output << name.ljust(20)
    output << "cereales".ljust(10)
    if @food_database[name]
      output << @food_database[name].proteins.to_s.ljust(10)
      output << @food_database[name].carbohydrates.to_s.ljust(10)
      output << @food_database[name].lipids.to_s.ljust(10)
      output << @food_database[name].get_nutritional_value.round(4).to_s.ljust(20)
      output << calculate_nutritional_value(name, str_amount_2_gr_amount(amount)).round(4).to_s.ljust(25)
      output << amount.ljust(15) << str_amount_2_gr_amount(amount).round(2).to_s.ljust(4) << " g"
    end
    output << "\n"
  end

  @proteins.each do |name, amount|
    output << name.ljust(20)
    output << "proteínas".ljust(10)
    if @food_database[name]
      output << @food_database[name].proteins.to_s.ljust(10)
      output << @food_database[name].carbohydrates.to_s.ljust(10)
      output << @food_database[name].lipids.to_s.ljust(10)
      output << @food_database[name].get_nutritional_value.round(4).to_s.ljust(20)
      output << calculate_nutritional_value(name, str_amount_2_gr_amount(amount)).round(4).to_s.ljust(25)
      output << amount.ljust(15) << str_amount_2_gr_amount(amount).round(2).to_s.ljust(4) << " g"
    end
    output << "\n"
  end

  @oils.each do |name, amount|
    output << name.ljust(20)
    output << "aceites".ljust(10)
    if @food_database[name]
      output << @food_database[name].proteins.to_s.ljust(10)
      output << @food_database[name].carbohydrates.to_s.ljust(10)
      output << @food_database[name].lipids.to_s.ljust(10)
      output << @food_database[name].get_nutritional_value.round(4).to_s.ljust(20)
      output << calculate_nutritional_value(name, str_amount_2_gr_amount(amount)).round(4).to_s.ljust(25)
      output << amount.ljust(15) << str_amount_2_gr_amount(amount).round(2).to_s.ljust(4) << " g"
    end
    output << "\n"
  end

  @drinks.each do |name, amount|
    output << name.ljust(20)
    output << "bebidas".ljust(10)
    if @food_database[name]
      output << @food_database[name].proteins.to_s.ljust(10)
      output << @food_database[name].carbohydrates.to_s.ljust(10)
      output << @food_database[name].lipids.to_s.ljust(10)
      output << @food_database[name].get_nutritional_value.round(4).to_s.ljust(20)
      output << calculate_nutritional_value(name, str_amount_2_gr_amount(amount)).round(4).to_s.ljust(25)
      output << amount.ljust(15) << str_amount_2_gr_amount(amount).round(2).to_s.ljust(5) << " g"
    end
    output << "\n"
  end

  output << "\n"
  output << "Valor nutricional del plato > #{@nutritional_value.round(4)}"

  output
end

#vegetable(food_name, quantity = {}) ⇒ Object

Métodos para añadir elementos a las partes del plato.



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# File 'lib/nutritional_calculator/plate.rb', line 59

def vegetable(food_name, quantity = {})
    add_food_to_plate("vegetable", food_name, quantity[:amount]) if(quantity[:amount])
end