Sha256: 6be9a6b11ef38da874da6630731df6524880e2e9cde6709723fc3aa76e575662
Contents?: true
Size: 1.8 KB
Versions: 34
Compression:
Stored size: 1.8 KB
Contents
class Topic < Content
numbered :lessons
aggregate_of :lessons
has_many :lessons, -> { order(number: :asc) }, dependent: :delete_all
has_many :guides, -> { order('lessons.number') }, through: :lessons
has_many :exercises, -> { order('exercises.number') }, through: :guides
markdown_on :appendix
alias_method :structural_children, :lessons
def first_lesson
lessons.first
end
def import_from_resource_h!(resource_h)
dirty_progress_if_structural_children_changed! do
self.assign_attributes resource_h.except(:lessons, :description)
self.description = resource_h[:description].squeeze(' ')
rebuild_lessons! resource_h[:lessons].to_a.map { |it| lesson_for(it) }
end
end
def to_expanded_resource_h
super.merge(appendix: appendix, lessons: lessons.map(&:slug))
end
def as_chapter_of(book)
book.chapters.find_by(topic_id: id) || Chapter.new(topic: self, book: book)
end
def reindex_usages!
Chapter.where(topic: self).map(&:book).each(&:reindex_usages!)
end
def monolesson
@monolesson ||= lessons.to_a.single
end
def monolesson?
monolesson.present?
end
## Forking
def fork_children_into!(dup, organization, syncer)
dup.lessons = lessons.map { |lesson| lesson.guide.fork_to!(organization, syncer, quiet: true).as_lesson_of(dup) }
end
def pending_lessons(user)
Exercise
.with_pending_assignments_for(
user,
lessons
.includes(:guide)
.references(:guide)
.joins('left join exercises exercises on exercises.guide_id = guides.id'))
.group('guides.id', 'lessons.number', 'lessons.id')
end
private
def lesson_for(slug)
Guide.find_by!(slug: slug).as_lesson_of(self)
rescue ActiveRecord::RecordNotFound
raise "Guide for slug #{slug} could not be found"
end
end
Version data entries
34 entries across 34 versions & 1 rubygems