abstract class TodoOutputPort

• TodoOutputPort
• Reference
• Object

Overview

Abstract class representing a Todo output port.

This abstract class defines four abstract methods that must be implemented by its subclasses:

• #display_todos: Displays the titles of all the todos in the given array.
• #display_todo_details: Displays the details of a single todo, including its title, description, and due date.
• #display_todo_created: Displays a message indicating that a todo has been created.
• #display_todo_completed: Displays a message indicating that a todo has been completed.

Example Usage:

class ConsoleOutputPort < TodoOutputPort
  def display_todos(todos : Array(Todo))
    todos.each do |todo|
      puts todo.title
    end
  end

  def display_todo_details(todo : Todo)
    puts "Title: #{todo.title}"
    puts "Description: #{todo.description}"
    puts "Due Date: #{todo.due_date}"
  end

  def display_todo_created(todo : Todo)
    puts "Todo created: #{todo.title}"
  end

  def display_todo_completed(todo : Todo)
    puts "Todo completed: #{todo.title}"
  end
end

Inputs:

• todos : An array of Todo objects.
• todo : A single Todo object.

Flow:

• The #display_todos method takes an array of Todo objects as input and displays the titles of all the todos.
• The #display_todo_details method takes a single Todo object as input and displays the details of the todo.
• The #display_todo_created method takes a single Todo object as input and displays a message indicating that the todo has been created.
• The #display_todo_completed method takes a single Todo object as input and displays a message indicating that the todo has been completed.

Outputs:

• None

Direct Known Subclasses

• ConsoleTodoOutputPort

Defined in:

domain/ports/todo_output.cr

Instance Method Summary

• #display_todo_completed(todo : Todo) : Nil
• #display_todo_created(todo : Todo) : Nil
• #display_todo_details(todo : Todo) : Nil
• #display_todos(todos : Array(Todo)) : Nil

Instance Method Detail