app/models/context.rb
class Context < ApplicationRecord
has_many :todos, -> { order(Arel.sql("todos.due IS NULL, todos.due ASC, todos.created_at ASC")).includes(:project) }, :dependent => :delete_all
has_many :recurring_todos, :dependent => :delete_all
belongs_to :user
scope :active, -> { where state: :active }
scope :hidden, -> { where state: :hidden }
scope :closed, -> { where state: :closed }
scope :with_name, lambda { |name| where("name " + Common.like_operator + " ?", name) }
acts_as_list :scope => :user, :top_of_list => 0
# state machine
include AASM
aasm :column => :state do
state :active, :initial => true
state :closed
state :hidden
event :close do
transitions :to => :closed, :from => [:active, :hidden], :guard => :no_active_todos?
end
event :hide do
transitions :to => :hidden, :from => [:active, :closed]
end
event :activate do
transitions :to => :active, :from => [:closed, :hidden]
end
end
validates :name, presence: { message: "context must have a name" }, length: { maximum: 255, message: "context name must be less than 256 characters" }, uniqueness: { message: "already exists", scope: "user_id", case_sensitive: false }
def self.null_object
NullContext.new
end
def title
name
end
def no_active_todos?
return todos.active.count == 0
end
end
class NullContext
def nil?
true
end
def id
nil
end
def name
''
end
end