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Решение на Втора задача от Валентин Ейткен

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Резултати

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

Код

class TodoList
include Enumerable
attr_reader :tasks
def self.parse(text)
tasks = text.each_line.map do |line|
Task.parse_line line
end
TodoList.new tasks
end
def initialize tasks
@tasks = tasks
end
def each(&block)
@tasks.each &block
end
def filter criteria
TodoList.new @tasks.select { |task| criteria.matches? task }
end
def adjoin(other)
TodoList.new @tasks | other.tasks
end
def tasks_todo
filter(Criteria.status :todo).tasks.length
end
def tasks_in_progress
filter(Criteria.status :current).tasks.length
end
def tasks_completed
filter(Criteria.status :done).tasks.length
end
def completed?
tasks_completed == @tasks.length
end
end
class Task
def self.parse_line line
attrs = line.split('|').map do |attr|
attr.strip
end
Task.new *attrs
end
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 ', '
end
end
class Criteria
class << self
def status status
Criteria.new { |task| task.status == status }
end
def tags tags
Criteria.new do |task|
(tags - task.tags).empty?
end
end
def priority priority
Criteria.new { |task| task.priority == priority }
end
end
def initialize &block
@criterion = block
end
def matches?(task)
@criterion.call(task)
end
def &(other)
Criteria.new { |task| self.matches?(task) and other.matches?(task) }
end
def |(other)
Criteria.new { |task| self.matches?(task) or other.matches?(task) }
end
def !
Criteria.new { |task| not matches?(task) }
end
end

Лог от изпълнението

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Finished in 0.43078 seconds
22 examples, 0 failures

История (1 версия и 0 коментара)

Валентин обнови решението на 04.11.2013 09:42 (преди около 11 години)

+class TodoList
+ include Enumerable
+
+ attr_reader :tasks
+
+ def self.parse(text)
+ tasks = text.each_line.map do |line|
+ Task.parse_line line
+ end
+ TodoList.new tasks
+ end
+
+ def initialize tasks
+ @tasks = tasks
+ end
+
+ def each(&block)
+ @tasks.each &block
+ end
+
+ def filter criteria
+ TodoList.new @tasks.select { |task| criteria.matches? task }
+ end
+
+ def adjoin(other)
+ TodoList.new @tasks | other.tasks
+ end
+
+ def tasks_todo
+ filter(Criteria.status :todo).tasks.length
+ end
+
+ def tasks_in_progress
+ filter(Criteria.status :current).tasks.length
+ end
+
+ def tasks_completed
+ filter(Criteria.status :done).tasks.length
+ end
+
+ def completed?
+ tasks_completed == @tasks.length
+ end
+end
+
+class Task
+ def self.parse_line line
+ attrs = line.split('|').map do |attr|
+ attr.strip
+ end
+ Task.new *attrs
+ end
+
+ 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 ', '
+ end
+end
+
+class Criteria
+ class << self
+ def status status
+ Criteria.new { |task| task.status == status }
+ end
+
+ def tags tags
+ Criteria.new do |task|
+ (tags - task.tags).empty?
+ end
+ end
+
+ def priority priority
+ Criteria.new { |task| task.priority == priority }
+ end
+ end
+
+ def initialize &block
+ @criterion = block
+ end
+
+ def matches?(task)
+ @criterion.call(task)
+ end
+
+ def &(other)
+ Criteria.new { |task| self.matches?(task) and other.matches?(task) }
+ end
+
+ def |(other)
+ Criteria.new { |task| self.matches?(task) or other.matches?(task) }
+ end
+
+ def !
+ Criteria.new { |task| not matches?(task) }
+ end
+end