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Решение на Втора задача от Николай Генов

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Към профила на Николай Генов

Резултати

  • 6 точки от тестове
  • 0 бонус точки
  • 6 точки общо
  • 22 успешни тест(а)
  • 0 неуспешни тест(а)

Код

class Criteria
class << self
def status(status)
Criterion.new { |todo| todo.status.equal? status }
end
def priority(priority)
Criterion.new { |todo| todo.priority.equal? priority }
end
def tags(tags)
Criterion.new { |todo| tags & todo.tags == tags }
end
end
end
class Criterion
def initialize(&block)
@predicate = block
end
def matches?(todo)
@predicate.(todo)
end
def &(other)
Criterion.new { |todo| matches?(todo) and other.matches?(todo) }
end
def |(other)
Criterion.new { |todo| matches?(todo) or other.matches?(todo) }
end
def !
Criterion.new { |todo| not matches?(todo) }
end
end
class Todo
attr_reader :status, :description, :priority, :tags
def initialize(status, description, priority, tags)
@status = status.downcase.to_sym
@description = description
@priority = priority.downcase.to_sym
@tags = tags.split(",").map(&:strip)
end
end
class TodoList
include Enumerable
attr_reader :todos
def self.parse(todos_string)
splited_str = todos_string.lines.map { |line| line.split("|").map(&:strip) }
todos = splited_str.map do |status, description, priority, tags|
Todo.new status, description, priority, tags
end
new todos
end
def initialize(todos)
@todos = todos
end
def each(&block)
@todos.each(&block)
end
def tasks_todo
(filter Criteria.status :todo).to_a.size
end
def tasks_in_progress
(filter Criteria.status :current).to_a.size
end
def tasks_completed
(filter Criteria.status :done).to_a.size
end
def completed?
tasks_completed.equal? todos.size
end
def adjoin(other)
TodoList.new todos | other.todos
end
def filter(criteria)
TodoList.new @todos.select{ |todo| criteria.matches? todo }
end
end

Лог от изпълнението

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Finished in 0.13602 seconds
22 examples, 0 failures

История (1 версия и 0 коментара)

Николай обнови решението на 06.11.2013 11:31 (преди около 11 години)

+class Criteria
+ class << self
+ def status(status)
+ Criterion.new { |todo| todo.status.equal? status }
+ end
+
+ def priority(priority)
+ Criterion.new { |todo| todo.priority.equal? priority }
+ end
+
+ def tags(tags)
+ Criterion.new { |todo| tags & todo.tags == tags }
+ end
+ end
+end
+
+class Criterion
+ def initialize(&block)
+ @predicate = block
+ end
+
+ def matches?(todo)
+ @predicate.(todo)
+ end
+
+ def &(other)
+ Criterion.new { |todo| matches?(todo) and other.matches?(todo) }
+ end
+
+ def |(other)
+ Criterion.new { |todo| matches?(todo) or other.matches?(todo) }
+ end
+
+ def !
+ Criterion.new { |todo| not matches?(todo) }
+ end
+end
+
+class Todo
+ attr_reader :status, :description, :priority, :tags
+
+ def initialize(status, description, priority, tags)
+ @status = status.downcase.to_sym
+ @description = description
+ @priority = priority.downcase.to_sym
+ @tags = tags.split(",").map(&:strip)
+ end
+end
+
+class TodoList
+ include Enumerable
+
+ attr_reader :todos
+
+ def self.parse(todos_string)
+ splited_str = todos_string.lines.map { |line| line.split("|").map(&:strip) }
+ todos = splited_str.map do |status, description, priority, tags|
+ Todo.new status, description, priority, tags
+ end
+
+ new todos
+ end
+
+ def initialize(todos)
+ @todos = todos
+ end
+
+ def each(&block)
+ @todos.each(&block)
+ end
+
+ def tasks_todo
+ (filter Criteria.status :todo).to_a.size
+ end
+
+ def tasks_in_progress
+ (filter Criteria.status :current).to_a.size
+ end
+
+ def tasks_completed
+ (filter Criteria.status :done).to_a.size
+ end
+
+ def completed?
+ tasks_completed.equal? todos.size
+ end
+
+ def adjoin(other)
+ TodoList.new todos | other.todos
+ end
+
+ def filter(criteria)
+ TodoList.new @todos.select{ |todo| criteria.matches? todo }
+ end
+end