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Kevin Lozandier
Courses Plus Student 53,747 PointsRegarding "Viewing TodoLists" Video's Scope Notes...
To be consistent with the hash-based method of scoping shouldn't the teacher notes for the "Viewing Todo Lists" video have had notes like the following used instead
class TodoItem < ActiveRecord::Base
scope :incomplete, -> { where(completed_at: nil)}
scope :complete, -> { where.not(completed_at: nil)}
validates :content, presence: true, length: { minimum: 3 }
belongs_to :todo_list
def completed?
!completed_at.blank?
end
end
Where where.not is used to annotate a negation match?
1 Answer
Jason Seifer
Treehouse Guest TeacherHey Kevin Lozandier great comment! In a real application I could agree and go for consistency. This was done to show a couple of different ways of using scopes.