canvas-lms/lib/sorts_assignments.rb

117 lines
3.5 KiB
Ruby

class SortsAssignments
VALID_BUCKETS = [:past, :overdue, :undated, :ungraded, :upcoming, :future]
AssignmentsSortedByDueDate = Struct.new(*VALID_BUCKETS)
def self.by_due_date(opts)
assignments = opts.fetch( :assignments )
user = opts.fetch( :user )
session = opts.fetch( :session )
submissions = opts.fetch( :submissions )
upcoming_limit = opts[:upcoming_limit] || 1.week.from_now
AssignmentsSortedByDueDate.new(
past(assignments),
overdue(assignments, user, session, submissions),
undated(assignments),
ungraded_for_user_and_session(assignments, user, session),
upcoming(assignments, upcoming_limit),
future(assignments)
)
end
def self.past(assignments)
assignments ||= []
dated(assignments).select{ |assignment| assignment.due_at < Time.now }
end
def self.dated(assignments)
assignments ||= []
assignments.reject{ |assignment| assignment.due_at == nil }
end
def self.undated(assignments)
assignments ||= []
assignments.select{ |assignment| assignment.due_at == nil }
end
def self.upcoming(assignments, limit=1.week.from_now)
assignments ||= []
dated(assignments).select{ |a| due_between?(a,Time.now,limit) }
end
def self.future(assignments)
assignments - past(assignments)
end
def self.up_to(assignments, time)
dated(assignments).select{ |assignment| assignment.due_at < time }
end
def self.down_to(assignments, time)
dated(assignments).select{ |assignment| assignment.due_at > time }
end
def self.ungraded_for_user_and_session(assignments,user,session)
assignments ||= []
assignments.select do |assignment|
assignment.grants_right?(user, session, :grade) &&
assignment.expects_submission? &&
Assignments::NeedsGradingCountQuery.new(assignment, user).count > 0
end
end
def self.without_graded_submission(assignments, submissions)
assignments ||= []; submissions ||= [];
submissions_by_assignment = submissions.inject({}) do |memo, sub|
memo[sub.assignment_id] = sub
memo
end
assignments.select do |assignment|
match = submissions_by_assignment[assignment.id]
!match || match.without_graded_submission?
end
end
def self.user_allowed_to_submit(assignments, user, session)
assignments ||= []
assignments.select do |assignment|
assignment.expects_submission? && assignment.grants_right?(user, session, :submit)
end
end
def self.overdue(assignments, user, session, submissions)
submissions ||= []
assignments = past(assignments)
user_allowed_to_submit(assignments, user, session) &
without_graded_submission(assignments, submissions)
end
def self.bucket_filter(given_scope, bucket, session, user, context, submissions_for_user)
overridden_assignments = given_scope.map{|a| a.overridden_for(user)}
observed_students = ObserverEnrollment.observed_students(context, user)
user_for_sorting = if observed_students.count == 1
observed_students.keys.first
else
user
end
sorted_assignments = self.by_due_date(
:assignments => overridden_assignments,
:user => user_for_sorting,
:session => session,
:submissions => submissions_for_user
)
filtered_assignment_ids = sorted_assignments.send(bucket).map(&:id)
given_scope.where(id: filtered_assignment_ids)
end
private
def self.due_between?(assignment,start_time,end_time)
assignment.due_at >= start_time && assignment.due_at <= end_time
end
end